diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9842afc..d7cb53e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 
 # minimum CMake version required for C++20 support, among other things
-cmake_minimum_required(VERSION 3.15)
+cmake_minimum_required(VERSION 3.18)
 
 # detect if Monocoque is being used as a sub-project of another CMake project
 if(NOT DEFINED PROJECT_NAME)
@@ -37,10 +37,10 @@ add_executable(monocoque src/monocoque/monocoque.c)
 if(USE_PULSEAUDIO)
     message("Using pulseaudio backend...")
     add_compile_definitions(USE_PULSEAUDIO=true)
-    target_link_libraries(monocoque m hidapi-hidraw pulse serialport xml2 argtable2 config gameloop helper devices slog simulatorapi uv xdg-basedir)
+    target_link_libraries(monocoque m hidapi-hidraw pulse serialport xml2 argtable2 config gameloop helper devices slog simulatorapi uv xdg-basedir lua5.4)
 else()
     message("Using portaudio backend...")
-    target_link_libraries(monocoque m hidapi-hidraw portaudio serialport xml2 argtable2 config gameloop helper devices slog simulatorapi uv xdg-basedir)
+    target_link_libraries(monocoque m hidapi-hidraw portaudio serialport xml2 argtable2 config gameloop helper devices slog simulatorapi uv xdg-basedir lua5.4)
 endif()
 
 target_include_directories(monocoque PUBLIC config ${LIBXML_INCLUDE_DIR})
@@ -96,10 +96,10 @@ add_subdirectory(src/monocoque/slog)
 #target_link_libraries(hidtest hidapi-hidraw)
 #add_test(hidtest hidtest)
 #
-#add_executable(simlighttest tests/simlighttest.c)
-#target_include_directories(simlighttest PUBLIC)
-#target_link_libraries(simlighttest serialport)
-#add_test(simlighttest simlighttest)
+add_executable(simlighttest tests/simlighttest.c)
+target_include_directories(simlighttest PUBLIC)
+target_link_libraries(simlighttest serialport)
+add_test(simlighttest simlighttest)
 
 
 # used for enabling additional compiler options if supported
diff --git a/src/monocoque/devices/CMakeLists.txt b/src/monocoque/devices/CMakeLists.txt
index 8b70ff8..7b6e097 100644
--- a/src/monocoque/devices/CMakeLists.txt
+++ b/src/monocoque/devices/CMakeLists.txt
@@ -34,6 +34,8 @@ set(devices_source_files
   sound/usb_generic_shaker_pulse.c
   serial/arduino.h
   serial/arduino.c
+  serial/arduinoledlua.h
+  serial/arduinoledlua.c
   serial/moza.h
   serial/moza.c
 )
diff --git a/src/monocoque/devices/serial/arduino.c b/src/monocoque/devices/serial/arduino.c
index a2c135e..f134ab8 100644
--- a/src/monocoque/devices/serial/arduino.c
+++ b/src/monocoque/devices/serial/arduino.c
@@ -2,13 +2,37 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
+#include <math.h>
 
 #include "arduino.h"
+#include "arduinoledlua.h"
 #include "../serialadapter.h"
 #include "../../slog/slog.h"
 
 #define arduino_timeout 5000
 
+int arduino_check(enum sp_return result)
+{
+    char* error_message;
+
+    switch (result)
+    {
+        case SP_ERR_ARG:
+            return 1;
+        case SP_ERR_FAIL:
+            error_message = sp_last_error_message();
+            sloge("error: serial write failed: %s", error_message);
+            sp_free_error_message(error_message);
+        case SP_ERR_SUPP:
+            printf("Error: Not supported.\n");
+        case SP_ERR_MEM:
+            printf("Error: Couldn't allocate memory.\n");
+        case SP_OK:
+        default:
+            return result;
+    }
+}
+
 int arduino_update(SerialDevice* serialdevice, void* data, size_t size)
 {
     int result = 1;
@@ -23,3 +47,285 @@ int arduino_init(SerialDevice* serialdevice, const char* portdev)
     serialdevice->id = monocoque_serial_open(serialdevice, portdev);
     return serialdevice->id;
 }
+
+int arduino_customled_init(SerialDevice* serialdevice, const char* portdev, const char* luafile)
+{
+    serialdevice->id = monocoque_serial_open(serialdevice, portdev);
+
+    size_t bufsize1 = 11;
+    size_t recv_bufsize1 = 5;
+    char recv_buf1[recv_bufsize1];
+    char bytes1[bufsize1];
+
+    for(int j = 0; j < bufsize1; j++)
+    {
+        bytes1[j] = 0x00;
+    }
+    bytes1[0] = 0xff;
+    bytes1[1] = 0xff;
+    bytes1[2] = 0xff;
+    bytes1[3] = 0xff;
+    bytes1[4] = 0xff;
+    bytes1[5] = 0xff;
+    bytes1[6] = 0x6c;
+    bytes1[7] = 0x65;
+    bytes1[8] = 0x64;
+    bytes1[9] = 0x73;
+    bytes1[10] = 0x63;
+
+    int result = 0;
+    unsigned int timeout = 2000;
+    result = monocoque_serial_write_block(serialdevice->id, &bytes1, bufsize1, timeout);
+    result = monocoque_serial_read_block(serialdevice->id, &recv_buf1, recv_bufsize1, timeout);
+    //slogi("wrote %i bytes", result);
+    //sleep(2);
+    //monocoque_serial_device monocoque_serial_dev = monocoque_serial_devices[serialdevice->id];
+    //result = arduino_check(sp_blocking_read(monocoque_serial_dev.port, &recv_buf1, recv_bufsize1, 5000));
+    //slogi("read %i bytes", result);
+    //result = sp_blocking_read(serialdevice->port, &recv_buf1, recv_bufsize1, timeout);
+
+    char numstr[recv_bufsize1];
+    for(int j = 0; j < recv_bufsize1; j++)
+    {
+        numstr[j] = '\0';
+    }
+    for(int j = 0; j < recv_bufsize1; j++)
+    {
+        if(recv_buf1[j] != 0 && recv_buf1[j] != 0x0d && recv_buf1[j] != 0x0a)
+        {
+            numstr[j] = recv_buf1[j];
+        }
+    }
+    int numlights = atoi(numstr);
+    serialdevice->numleds = numlights;
+    slogi("numlights is %i\n", numlights);
+
+    if(luafile == NULL)
+    {
+        return serialdevice->id;
+    }
+
+    lua_State* L = luaL_newstate();
+    luaL_openlibs(L);
+
+    int top=lua_gettop(L);
+    int status = luaL_loadfile(L, luafile);
+
+    if (status) {
+        /* If something went wrong, error message is at the top of */
+        /* the stack */
+        fprintf(stderr, "Couldn't load file: %s\n", lua_tostring(L, -1));
+        exit(1);
+    }
+    lua_setglobal(L,"myFunc");
+
+    serialdevice->L = L;
+
+    return serialdevice->id;
+}
+
+
+int arduino_simled_update(SimDevice* this, SimData* simdata)
+{
+    SerialDevice* serialdevice = (void *) this->derived;
+    int result = 1;
+
+    int total_leds = serialdevice->numleds;
+    size_t bufsize = (total_leds * 3) + 14;
+    char bytes[bufsize];
+    int endled = serialdevice->endled;
+    int startled = serialdevice->startled;
+    if(endled == 0)
+    {
+        endled = total_leds;
+    }
+    int num_avail_leds = endled - startled + 1;
+    int rpm = simdata->rpms;
+    int maxrpm = simdata->maxrpm;
+    int litleds = 0;
+    if(rpm > 0 && maxrpm > 0)
+    {
+        int rpmmargin = ceil(.05*maxrpm);
+        int rpminterval = (maxrpm-rpmmargin) / (num_avail_leds);
+
+
+        for (int l = 1; l <= (num_avail_leds); l++)
+        {
+            if(rpm >= (rpminterval * l))
+            {
+                litleds = l;
+            }
+        }
+
+
+
+        for(int j = 0; j < bufsize; j++)
+        {
+            bytes[j] = 0x00;
+        }
+        bytes[0] = 0xff;
+        bytes[1] = 0xff;
+        bytes[2] = 0xff;
+        bytes[3] = 0xff;
+        bytes[4] = 0xff;
+        bytes[5] = 0xff;
+        bytes[6] = 0x73;
+        bytes[7] = 0x6c;
+        bytes[8] = 0x65;
+        bytes[9] = 0x64;
+        bytes[10] = 0x73;
+        bytes[bufsize-1] = 0xfd;
+        bytes[bufsize-2] = 0xfe;
+        bytes[bufsize-3] = 0xff;
+
+        for(int i = 0; i < litleds; i++)
+        {
+            if(i < ((num_avail_leds) / 2))
+            {
+                //green
+                bytes[11 + ((i + startled - 1) * 3) + 1] = 0xff;
+            }
+            else
+            {
+                if(i < num_avail_leds - 1)
+                {
+                    //yellow
+                    bytes[11 + ((i + startled - 1) * 3) + 0] = 0xff;
+                    bytes[11 + ((i + startled - 1) * 3) + 1] = 0xff;
+                }
+            }
+            if(i == num_avail_leds - 1)
+            {
+                //red
+                bytes[11 + ((i + startled - 1) * 3) + 0] = 0xff;
+            }
+        }
+    }
+
+    slogt("Updating arduino device lights to %i", litleds);
+    // we can add configs to set all the colors
+    size_t size = sizeof(bytes);
+
+    result = monocoque_serial_write(serialdevice->id, &bytes, size, arduino_timeout);
+
+    return result;
+}
+
+int arduino_customled_update(SimDevice* this, SimData* simdata)
+{
+    SerialDevice* serialdevice = (void *) this->derived;
+    int result = 1;
+
+    int total_leds = serialdevice->numleds;
+    size_t bufsize = (total_leds * 3) + 14;
+    char bytes[bufsize];
+
+    for(int j = 0; j < bufsize; j++)
+    {
+        bytes[j] = 0x00;
+    }
+    bytes[0] = 0xff;
+    bytes[1] = 0xff;
+    bytes[2] = 0xff;
+    bytes[3] = 0xff;
+    bytes[4] = 0xff;
+    bytes[5] = 0xff;
+    bytes[6] = 0x73;
+    bytes[7] = 0x6c;
+    bytes[8] = 0x65;
+    bytes[9] = 0x64;
+    bytes[10] = 0x73;
+    bytes[bufsize-1] = 0xfd;
+    bytes[bufsize-2] = 0xfe;
+    bytes[bufsize-3] = 0xff;
+
+
+    lua_State* L = serialdevice->L;
+
+    lua_pushstring(L, "buff");
+    lua_pushlightuserdata(L, &bytes);
+    lua_settable(L, LUA_REGISTRYINDEX);
+
+    simdata_to_lua(L, simdata);
+    lua_setglobal(L, "simdata");
+
+    lua_pushinteger(L, total_leds);
+    lua_setglobal(L, "TotalLeds");
+
+    lua_register(L, "set_led_to_color", set_led_to_color);
+    lua_register(L, "set_led_range_to_color", set_led_range_to_color);
+    lua_register(L, "set_led_to_rgb_color", set_led_to_rgb_color);
+    lua_register(L, "set_led_range_to_rgb_color", set_led_range_to_rgb_color);
+    lua_register(L, "led_clear_all", led_clear_all);
+
+    lua_pushinteger(L, LUALEDCOLOR_RED);
+    lua_setglobal(L, "RED");
+    lua_pushinteger(L, LUALEDCOLOR_GREEN);
+    lua_setglobal(L, "GREEN");
+    lua_pushinteger(L, LUALEDCOLOR_BLUE);
+    lua_setglobal(L, "BLUE");
+    lua_pushinteger(L, LUALEDCOLOR_YELLOW);
+    lua_setglobal(L, "YELLOW");
+    lua_pushinteger(L, LUALEDCOLOR_ORANGE);
+    lua_setglobal(L, "ORANGE");
+
+    lua_getglobal(L,"myFunc");
+    if (lua_pcall(L, 0, 0, 0) != LUA_OK)
+    {
+        fprintf(stderr, "Error calling Lua script: %s\n", lua_tostring(L, -1));
+    }
+
+    size_t size = sizeof(bytes);
+
+    arduino_update(serialdevice, &bytes, size);
+
+    // move to free
+
+
+
+    return result;
+}
+
+int arduino_customled_free(SerialDevice* serialdevice, bool lua)
+{
+    size_t bufsize = (serialdevice->numleds * 3) + 14;
+    char bytes[bufsize];
+    int endled = serialdevice->endled;
+    int startled = serialdevice->startled;
+    if(endled == 0)
+
+    for(int j = 0; j < bufsize; j++)
+    {
+        bytes[j] = 0x00;
+    }
+    bytes[0] = 0xff;
+    bytes[1] = 0xff;
+    bytes[2] = 0xff;
+    bytes[3] = 0xff;
+    bytes[4] = 0xff;
+    bytes[5] = 0xff;
+    bytes[6] = 0x73;
+    bytes[7] = 0x6c;
+    bytes[8] = 0x65;
+    bytes[9] = 0x64;
+    bytes[10] = 0x73;
+    bytes[bufsize-1] = 0xfd;
+    bytes[bufsize-2] = 0xfe;
+    bytes[bufsize-3] = 0xff;
+
+    for(int i = 0; i < serialdevice->numleds; i++)
+    {
+        bytes[11 + (i * 3) + 0] = 0x00;
+        bytes[11 + (i * 3) + 1] = 0x00;
+        bytes[11 + (i * 3) + 2] = 0x00;
+    }
+    size_t size = sizeof(bytes);
+
+    int result = monocoque_serial_write(serialdevice->id, &bytes, size, arduino_timeout);
+
+    if(lua == true)
+    {
+        lua_close(serialdevice->L);
+    }
+    return result;
+}
diff --git a/src/monocoque/devices/serial/arduino.h b/src/monocoque/devices/serial/arduino.h
index 8bf47c9..29c6484 100644
--- a/src/monocoque/devices/serial/arduino.h
+++ b/src/monocoque/devices/serial/arduino.h
@@ -5,8 +5,12 @@
 #include "../serialdevice.h"
 
 
+int arduino_simled_update(SimDevice* this, SimData* simdata);
 int arduino_update(SerialDevice* serialdevice, void* data, size_t size);
+int arduino_customled_init(SerialDevice* serialdevice, const char* portdev, const char* luafile);
+int arduino_customled_update(SimDevice* this, SimData* simdata);
 int arduino_init(SerialDevice* serialdevice,  const char* portdev);
 int arduino_free(SerialDevice* serialdevice);
+int arduino_customled_free(SerialDevice* serialdevice, bool lua);
 
 #endif
diff --git a/src/monocoque/devices/serial/arduinoledlua.c b/src/monocoque/devices/serial/arduinoledlua.c
new file mode 100644
index 0000000..1b4210c
--- /dev/null
+++ b/src/monocoque/devices/serial/arduinoledlua.c
@@ -0,0 +1,302 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "arduinoledlua.h"
+#include "arduino.h"
+
+#include "../../slog/slog.h"
+
+
+int simdata_to_lua(lua_State *L, SimData* simdata) {
+    lua_newtable(L);
+
+    lua_pushinteger(L, simdata->playerflag);
+    lua_setfield(L, -2, "playerflag");
+
+    lua_pushinteger(L, simdata->rpms);
+    lua_setfield(L, -2, "rpm");
+    
+    lua_pushinteger(L, simdata->maxrpm);
+    lua_setfield(L, -2, "maxrpm");
+
+    return 1; // Return the table to Lua
+}
+
+uint8_t get_color_rgb_value(int color, int rgb)
+{
+    switch (color)
+    {
+        case LUALEDCOLOR_RED:
+            switch (rgb)
+            {
+                case 0:
+                    return 255;
+                case 1:
+                    return 0;
+                case 2:
+                    return 0;
+            }
+        case LUALEDCOLOR_GREEN:
+            switch (rgb)
+            {
+                case 0:
+                    return 0;
+                case 1:
+                    return 255;
+                case 2:
+                    return 0;
+            }
+        case LUALEDCOLOR_BLUE:
+            switch (rgb)
+            {
+                case 0:
+                    return 0;
+                case 1:
+                    return 0;
+                case 2:
+                    return 255;
+            }
+        case LUALEDCOLOR_YELLOW:
+            switch (rgb)
+            {
+                case 0:
+                    return 255;
+                case 1:
+                    return 255;
+                case 2:
+                    return 0;
+            }
+        case LUALEDCOLOR_ORANGE:
+            switch (rgb)
+            {
+                case 0:
+                    return 255;
+                case 1:
+                    return 165;
+                case 2:
+                    return 0;
+            }
+        default:
+            return 0;
+    }
+}
+
+int set_led_range_to_color(lua_State *L)
+{
+
+    slogt("lua called c function set_led_range_to_color");
+
+    int range_start = lua_tonumber(L, 1);
+    int range_end = lua_tonumber(L, 2);
+    int color = lua_tonumber(L, 3);
+
+    slogd("lua range start is %i", range_start);
+    slogd("lua range end is %i", range_end);
+    slogd("lua color is %i", color);
+
+    range_start = range_start - 1;
+
+    lua_getglobal(L, "TotalLeds");
+    int numlights = 0;
+    if (lua_isnumber(L, -1))
+    {
+        numlights = lua_tonumber(L, -1);
+    }
+    slogd("num leds is %i", numlights);
+    
+    if(range_end > numlights)
+    {
+        range_end = numlights;
+    }
+    
+    if(range_end == 0)
+    {
+        slogt("Invalid range, doing nothing");
+        return 1;
+    }
+
+    lua_pushstring(L, "buff");
+    lua_gettable(L, LUA_REGISTRYINDEX);
+    char* bytes = lua_touserdata(L, -1);
+
+    slogt("tenth byte of buff is x%02x", bytes[10]);
+    
+    uint8_t color0 = get_color_rgb_value(color, 0);
+    uint8_t color1 = get_color_rgb_value(color, 1);
+    uint8_t color2 = get_color_rgb_value(color, 2);
+
+    for( int i = range_start; i < range_end; i++)
+    {
+        bytes[(i * 3) + 11 + 0] = color0;
+        bytes[(i * 3) + 11 + 1] = color1;
+        bytes[(i * 3) + 11 + 2] = color2;
+    }
+
+}
+
+int set_led_range_to_rgb_color(lua_State *L)
+{
+
+    slogt("lua called c function set_led_range_to_rgb_color");
+
+    int range_start = lua_tonumber(L, 1);
+    int range_end = lua_tonumber(L, 2);
+    int color0 = lua_tonumber(L, 3);
+    int color1 = lua_tonumber(L, 4);
+    int color2 = lua_tonumber(L, 5);
+
+    slogd("lua range start is %i", range_start);
+    slogd("lua range end is %i", range_end);
+    slogd("lua color0 is %i", color0);
+    slogd("lua color1 is %i", color1);
+    slogd("lua color2 is %i", color2);
+
+    range_start = range_start - 1;
+
+    lua_getglobal(L, "TotalLeds");
+    int numlights = 0;
+    if (lua_isnumber(L, -1))
+    {
+        numlights = lua_tonumber(L, -1);
+    }
+    slogd("num leds is %i", numlights);
+    
+    if(range_end > numlights)
+    {
+        range_end = numlights;
+    }
+
+    if(range_end == 0)
+    {
+        return 1;
+    }
+
+    lua_pushstring(L, "buff");
+    lua_gettable(L, LUA_REGISTRYINDEX);
+    char* bytes = lua_touserdata(L, -1);
+
+    slogt("tenth byte of buff is x%02x", bytes[10]);
+    
+    for( int i = range_start; i < range_end; i++)
+    {
+        bytes[(i * 3) + 11 + 0] = color0;
+        bytes[(i * 3) + 11 + 1] = color1;
+        bytes[(i * 3) + 11 + 2] = color2;
+    }
+
+}
+
+int set_led_to_color(lua_State *L)
+{
+    slogt("lua called c function set_led_to_rgb_color");
+
+    int led = lua_tonumber(L, 1);
+    int color = lua_tonumber(L, 2);
+
+    slogd("lua led is %i", led);
+    slogd("lua color is %i", color);
+    
+    led = led - 1;
+
+    lua_getglobal(L, "TotalLeds");
+    int numlights = 0;
+    if (lua_isnumber(L, -1))
+    {
+        numlights = lua_tonumber(L, -1);
+    }
+    slogd("num leds is %i", numlights);
+
+    if(led > numlights)
+    {
+        return 1;
+    }
+
+    lua_pushstring(L, "buff");
+    lua_gettable(L, LUA_REGISTRYINDEX);
+    char* bytes = lua_touserdata(L, -1);
+
+    slogt("tenth byte of buff is x%02x", bytes[10]);
+    
+    uint8_t color0 = get_color_rgb_value(color, 0);
+    uint8_t color1 = get_color_rgb_value(color, 1);
+    uint8_t color2 = get_color_rgb_value(color, 2);
+    
+    bytes[(led * 3) + 11 + 0] = color0;
+    bytes[(led * 3) + 11 + 1] = color1;
+    bytes[(led * 3) + 11 + 2] = color2;
+
+}
+
+
+int set_led_to_rgb_color(lua_State *L)
+{
+    slogt("lua called c function set_led_to_rgb_color");
+
+    int led = lua_tonumber(L, 1);
+    int color0 = lua_tonumber(L, 2);
+    int color1 = lua_tonumber(L, 3);
+    int color2 = lua_tonumber(L, 4);
+
+    slogd("lua led is %i", led);
+    slogd("lua color0 is %i", color0);
+    slogd("lua color1 is %i", color1);
+    slogd("lua color2 is %i", color2);
+    
+    led = led - 1;
+
+    lua_getglobal(L, "TotalLeds");
+    int numlights = 0;
+    if (lua_isnumber(L, -1))
+    {
+        numlights = lua_tonumber(L, -1);
+    }
+    slogd("num leds is %i", numlights);
+
+    if(led > numlights)
+    {
+        return 1;
+    }
+
+    lua_pushstring(L, "buff");
+    lua_gettable(L, LUA_REGISTRYINDEX);
+    char* bytes = lua_touserdata(L, -1);
+
+    slogt("tenth byte of buff is x%02x", bytes[10]);
+    
+    bytes[(led * 3) + 11 + 0] = color0;
+    bytes[(led * 3) + 11 + 1] = color1;
+    bytes[(led * 3) + 11 + 2] = color2;
+
+}
+
+
+int led_clear_all(lua_State *L)
+{
+
+    slogt("lua called c function led_clear_all");
+
+    lua_getglobal(L, "TotalLeds");
+    int numlights = 0;
+    if (lua_isnumber(L, -1))
+    {
+        numlights = lua_tonumber(L, -1);
+    }
+    slogd("num leds is %i", numlights);
+    
+    lua_pushstring(L, "buff");
+    lua_gettable(L, LUA_REGISTRYINDEX);
+    char* bytes = lua_touserdata(L, -1);
+
+    slogt("tenth byte of buff is x%02x", bytes[10]);
+    
+    for( int i = 0; i < numlights; i++)
+    {
+        bytes[(i * 3) + 11 + 0] = 0x00;
+        bytes[(i * 3) + 11 + 1] = 0x00;
+        bytes[(i * 3) + 11 + 2] = 0x00;
+    }
+
+}
diff --git a/src/monocoque/devices/serial/arduinoledlua.h b/src/monocoque/devices/serial/arduinoledlua.h
new file mode 100644
index 0000000..1e8061f
--- /dev/null
+++ b/src/monocoque/devices/serial/arduinoledlua.h
@@ -0,0 +1,25 @@
+#ifndef _ARDUINOLEDLUA_H
+#define _ARDUINOLEDLUA_H
+
+#include "lua5.4/lua.h"
+#include "lua5.4/lauxlib.h"
+#include "lua5.4/lualib.h"
+
+#include "../../simulatorapi/simapi/simapi/simdata.h"
+
+typedef enum {
+    LUALEDCOLOR_RED = 1,
+    LUALEDCOLOR_GREEN,
+    LUALEDCOLOR_BLUE,
+    LUALEDCOLOR_YELLOW,
+    LUALEDCOLOR_ORANGE,
+} LUALEDColor;
+
+int simdata_to_lua(lua_State *L, SimData* simdata);
+int set_led_range_to_color(lua_State *L);
+int set_led_to_color(lua_State *L);
+int set_led_range_to_rgb_color(lua_State *L);
+int set_led_to_rgb_color(lua_State *L);
+int led_clear_all(lua_State *L);
+
+#endif
diff --git a/src/monocoque/devices/serialadapter.c b/src/monocoque/devices/serialadapter.c
index e0a421f..c2f5fbe 100644
--- a/src/monocoque/devices/serialadapter.c
+++ b/src/monocoque/devices/serialadapter.c
@@ -128,6 +128,36 @@ int monocoque_serial_write_block(uint8_t serialdevicenum, void* data, size_t siz
     return result;
 }
 
+int monocoque_serial_read_block(uint8_t serialdevicenum, void* data, size_t size, int timeout)
+{
+    slogt("serial device id %i", serialdevicenum);
+    monocoque_serial_device monocoque_serial_dev = monocoque_serial_devices[serialdevicenum];
+
+    slogt("port name: %s, busy %i, open %i, openfail %i", monocoque_serial_dev.portname, monocoque_serial_dev.busy, monocoque_serial_dev.open, monocoque_serial_dev.busy);
+
+    if(monocoque_serial_dev.port == NULL)
+    {
+        sloge("port is null");
+    }
+
+    int result = -1;
+    if(monocoque_serial_dev.open == true)
+    {
+        while(monocoque_serial_dev.busy == true)
+        {
+            slogt("hopefully this doesn't happen long");
+            continue;
+        }
+
+        monocoque_serial_dev.busy = true;
+        result = sp_blocking_read(monocoque_serial_dev.port, data, size, timeout);
+        slogi("actually performed read");
+    }
+
+    monocoque_serial_dev.busy = false;
+    return result;
+}
+
 int monocoque_serial_open(SerialDevice* serialdevice, const char* portdev)
 {
     int serial_device_num = -1;
@@ -173,6 +203,7 @@ int monocoque_serial_open(SerialDevice* serialdevice, const char* portdev)
         error = check(sp_get_port_by_name(port_name, &sp));
         if (error != 0)
         {
+            sloge("Error opening serial port");
             monocoque_serial_devices[i].open = false;
             monocoque_serial_devices[i].openfail = true;
             return -1;
diff --git a/src/monocoque/devices/serialadapter.h b/src/monocoque/devices/serialadapter.h
index bc023aa..fb021a1 100644
--- a/src/monocoque/devices/serialadapter.h
+++ b/src/monocoque/devices/serialadapter.h
@@ -22,6 +22,7 @@ static monocoque_serial_device monocoque_serial_devices[10];
 
 int monocoque_serial_write(uint8_t serialdevicenum, void* data, size_t size, int timeout);
 int monocoque_serial_write_block(uint8_t serialdevicenum, void* data, size_t size, int timeout);
+int monocoque_serial_read_block(uint8_t serialdevicenum, void* data, size_t size, int timeout);
 int monocoque_serial_open(SerialDevice* serialdevice, const char* port);
 int monocoque_serial_free(SerialDevice* serialdevice);
 
diff --git a/src/monocoque/devices/serialdevice.c b/src/monocoque/devices/serialdevice.c
index d607396..1577c47 100644
--- a/src/monocoque/devices/serialdevice.c
+++ b/src/monocoque/devices/serialdevice.c
@@ -70,6 +70,8 @@ int arduino_shiftlights_update(SimDevice* this, SimData* simdata)
     return result;
 }
 
+
+
 int arduino_simwind_update(SimDevice* this, SimData* simdata)
 {
     SerialDevice* serialdevice = (void *) this->derived;
@@ -151,6 +153,13 @@ int serialdev_free(SimDevice* this)
             size_t size = sizeof(SimHapticData);
             monocoque_serial_write_block(serialdevice->id, &serialdevice->u.simhapticdata, size, 9000);
             slogi("set zero to arduino device");
+            break;
+        case ARDUINODEV__SIMLED__CUSTOM:
+            arduino_customled_free(serialdevice, true);
+            break;
+        case ARDUINODEV__SIMLED:
+            arduino_customled_free(serialdevice, false);
+            break;
     }
 
 
@@ -181,17 +190,22 @@ int serialdev_init(SerialDevice* serialdevice, DeviceSettings* ds)
     serialdevice->motorsposition = ds->serialdevsettings.motorsposition;
     serialdevice->baudrate = ds->serialdevsettings.baud;
 
-    switch (serialdevice->type)
+    switch (serialdevice->devicetype)
     {
-        case SERIALDEV_WHEEL:
-
+        case SERIALDEV__MOZAR5:
             // the wheel stuff assumed it was a usb
             //error = wheeldev_init(&serialdevice->u.wheeldevice, ds);
+            // maybe this call a more generic serial wheel init first
             error = moza_init(serialdevice, ds->serialdevsettings.portdev);
             break;
-
+        case ARDUINODEV__SIMLED__CUSTOM:
+            error = arduino_customled_init(serialdevice, ds->serialdevsettings.portdev, ds->serialdevsettings.config_file);
+            break;
+        case ARDUINODEV__SIMLED:
+            error = arduino_customled_init(serialdevice, ds->serialdevsettings.portdev, NULL);
+            break;
         default:
-            error = arduino_init(serialdevice, ds->serialdevsettings.portdev );
+            error = arduino_init(serialdevice, ds->serialdevsettings.portdev);
             break;
     }
 
@@ -201,6 +215,8 @@ int serialdev_init(SerialDevice* serialdevice, DeviceSettings* ds)
 
 static const vtable serial_simdevice_vtable = { &serialdev_update, &serialdev_free };
 static const vtable arduino_shiftlights_vtable = { &arduino_shiftlights_update, &serialdev_free };
+static const vtable arduino_simled_vtable = { &arduino_simled_update, &serialdev_free };
+static const vtable arduino_simled_custom_vtable = { &arduino_customled_update, &serialdev_free };
 static const vtable arduino_simwind_vtable = { &arduino_simwind_update, &serialdev_free };
 static const vtable arduino_simhaptic_vtable = { &arduino_simhaptic_update, &serialdev_free };
 static const vtable serialwheel_vtable = { &serial_wheel_update, &serial_wheel_free };
@@ -223,6 +239,26 @@ SerialDevice* new_serial_device(DeviceSettings* ds, MonocoqueSettings* ms) {
             this->m.vtable = &arduino_shiftlights_vtable;
             slogi("Initializing arduino device for shiftlights.");
             break;
+        case (SIMDEVTYPE_SIMLED):
+
+            if(ds->has_config == true)
+            {
+                this->devicetype = ARDUINODEV__SIMLED__CUSTOM;
+                this->startled = ds->serialdevsettings.startled;
+                this->endled = ds->serialdevsettings.endled;
+                this->m.vtable = &arduino_simled_custom_vtable;
+                slogi("Initializing arduino device for custom simled.");
+            }
+            else
+            {
+                this->devicetype = ARDUINODEV__SIMLED;
+                this->numleds = ds->serialdevsettings.numleds;
+                this->startled = ds->serialdevsettings.startled;
+                this->endled = ds->serialdevsettings.endled;
+                this->m.vtable = &arduino_simled_vtable;
+                slogi("Initializing arduino device for simled.");
+            }
+            break;
         case (SIMDEVTYPE_SIMWIND):
             this->devicetype = ARDUINODEV__SIMWIND;
             this->m.vtable = &arduino_simwind_vtable;
diff --git a/src/monocoque/devices/serialdevice.h b/src/monocoque/devices/serialdevice.h
index af7cbe1..e77ac27 100644
--- a/src/monocoque/devices/serialdevice.h
+++ b/src/monocoque/devices/serialdevice.h
@@ -10,6 +10,8 @@ typedef enum
     ARDUINODEV__SIMWIND       = 1,
     ARDUINODEV__HAPTIC        = 2,
     SERIALDEV__MOZAR5         = 3,
+    ARDUINODEV__SIMLED        = 4,
+    ARDUINODEV__SIMLED__CUSTOM        = 5
 }
 SerialDeviceType;
 
diff --git a/src/monocoque/devices/simdevice.h b/src/monocoque/devices/simdevice.h
index 017a60b..339da3d 100644
--- a/src/monocoque/devices/simdevice.h
+++ b/src/monocoque/devices/simdevice.h
@@ -3,6 +3,8 @@
 
 #include <stdbool.h>
 
+#include "lua5.4/lua.h"
+
 #include "usbdevice.h"
 #include "sounddevice.h"
 #include "serialdevice.h"
@@ -49,10 +51,14 @@ typedef struct
     int id;
     SerialType type;
     struct sp_port* port;
+    lua_State* L;
     SerialDeviceType devicetype;
     // move these two they only apply to the haptic device
     int motorsposition;
     int numlights;
+    int numleds;
+    int startled;
+    int endled;
     int baudrate;
     double ampfactor;
     double state;
diff --git a/src/monocoque/helper/confighelper.c b/src/monocoque/helper/confighelper.c
index d0424cb..0b92409 100644
--- a/src/monocoque/helper/confighelper.c
+++ b/src/monocoque/helper/confighelper.c
@@ -145,6 +145,11 @@ int strtodevsubtype(const char* device_subtype, DeviceSettings* ds, int simdev)
                 ds->dev_subtype = SIMDEVTYPE_SHIFTLIGHTS;
                 break;
             }
+            if (strcicmp(device_subtype, "Simleds") == 0)
+            {
+                ds->dev_subtype = SIMDEVTYPE_SIMLED;
+                break;
+            }
             if (strcicmp(device_subtype, "SimWind") == 0)
             {
                 ds->dev_subtype = SIMDEVTYPE_SIMWIND;
@@ -748,6 +753,18 @@ int devsetup(const char* device_type, const char* device_subtype, const char* co
             config_setting_lookup_int(device_settings, "numlights", &numlights);
             ds->serialdevsettings.numlights = numlights;
 
+            int numleds = 6;
+            config_setting_lookup_int(device_settings, "numleds", &numleds);
+            ds->serialdevsettings.numleds = numleds;
+
+            int startled = 1;
+            config_setting_lookup_int(device_settings, "startled", &startled);
+            ds->serialdevsettings.startled = startled;
+
+            int endled = 1;
+            config_setting_lookup_int(device_settings, "endled", &endled);
+            ds->serialdevsettings.endled = endled;
+
             int baud = 9600;
             config_setting_lookup_int(device_settings, "baud", &baud);
             ds->serialdevsettings.baud = baud;
@@ -758,6 +775,21 @@ int devsetup(const char* device_type, const char* device_subtype, const char* co
             ds->serialdevsettings.ampfactor = ampfactor;
 
             slogt("set port baud rate to %i, ampfactor %f", baud, ampfactor);
+
+            ds->has_config = false;
+            const char* temp2;
+            found = config_setting_lookup_string(device_settings, "config", &temp2);
+            slogt("config is %s found is %i", temp2, found);
+            if(strcicmp(temp2, "none") == 0)
+            {
+                slogt("config set to none");
+            }
+            else
+            {
+                ds->has_config = true;
+                ds->serialdevsettings.config_file = strdup(temp2);
+                slogt("will try to load config file at %s", ds->serialdevsettings.config_file);
+            }
         }
 
     }
@@ -827,7 +859,7 @@ int uiloadconfig(const char* config_file_str, int confignum, int configureddevic
 int settingsfree(DeviceSettings ds)
 {
 
-    if (ds.dev_subtype == SIMDEVTYPE_SIMWIND || ds.dev_subtype == SIMDEVTYPE_SHIFTLIGHTS)
+    if (ds.dev_subtype == SIMDEVTYPE_SIMWIND || ds.dev_subtype == SIMDEVTYPE_SHIFTLIGHTS || ds.dev_subtype == SIMDEVTYPE_SIMLED)
     {
         if (ds.serialdevsettings.portdev != NULL)
         {
diff --git a/src/monocoque/helper/confighelper.h b/src/monocoque/helper/confighelper.h
index 22cf3f2..2ef93bb 100644
--- a/src/monocoque/helper/confighelper.h
+++ b/src/monocoque/helper/confighelper.h
@@ -29,7 +29,8 @@ typedef enum
     SIMDEVTYPE_SIMWIND           = 4,
     SIMDEVTYPE_SERIALHAPTIC      = 5,
     SIMDEVTYPE_USBWHEEL          = 6,
-    SIMDEVTYPE_SERIALWHEEL       = 7
+    SIMDEVTYPE_SERIALWHEEL       = 7,
+    SIMDEVTYPE_SIMLED            = 8
 }
 DeviceSubType;
 
@@ -153,8 +154,12 @@ TachometerSettings;
 typedef struct
 {
     char* portdev;
+    char* config_file;
     MotorPosition motorsposition;
     int numlights;
+    int numleds;
+    int startled;
+    int endled;
     float ampfactor;
     int baud;
 }
@@ -195,6 +200,7 @@ typedef struct
     VibrationEffectType effect_type;
     MonocoqueTyreIdentifier tyre;
     double threshold;
+    bool has_config;
     // union?
     TachometerSettings tachsettings;
     SerialDeviceSettings serialdevsettings;
diff --git a/tests/simlighttest.c b/tests/simlighttest.c
index b228401..727b009 100644
--- a/tests/simlighttest.c
+++ b/tests/simlighttest.c
@@ -10,7 +10,7 @@ int check(enum sp_return result);
 int main()
 {
 
-    char* port_name = "/dev/ttyACM0";
+    char* port_name = "/dev/simdev0";
 
     /* The ports we will use. */
     struct sp_port* port;
@@ -32,39 +32,101 @@ int main()
     ShiftLightsData sd;
 
 
-    int result;
-    unsigned int timeout = 2000;
-    size_t size = sizeof(ShiftLightsData);
-    for( sd.litleds = 0; sd.litleds < 7; sd.litleds++)
+
+    size_t bufsize1 = 11;
+    size_t recv_bufsize1 = 5;
+    char recv_buf1[recv_bufsize1];
+    char bytes1[bufsize1];
+
+    for(int j = 0; j < bufsize1; j++)
     {
+        bytes1[j] = 0x00;
+    }
+    bytes1[0] = 0xff;
+    bytes1[1] = 0xff;
+    bytes1[2] = 0xff;
+    bytes1[3] = 0xff;
+    bytes1[4] = 0xff;
+    bytes1[5] = 0xff;
+    bytes1[6] = 0x6c;
+    bytes1[7] = 0x65;
+    bytes1[8] = 0x64;
+    bytes1[9] = 0x73;
+    bytes1[10] = 0x63;
+
+    int result = 0;
+    unsigned int timeout = 2000;
+    result = check(sp_blocking_write(port, &bytes1, bufsize1, timeout));
+    result = check(sp_blocking_read(port, &recv_buf1, recv_bufsize1, timeout));
+
+    char numstr[recv_bufsize1];
+    for(int j = 0; j < recv_bufsize1; j++)
+    {
+        numstr[j] = '\0';
+    }
+    for(int j = 0; j < recv_bufsize1; j++)
+    {
+        printf("%02x\n", recv_buf1[j]);
+        if(recv_buf1[j] != 0 && recv_buf1[j] != 0x0d && recv_buf1[j] != 0x0a)
+        {
+            numstr[j] = recv_buf1[j];
+        }
+    }
+    int numlights = atoi(numstr);
+    printf("numlights is %s %i\n", numstr, numlights);
+    //printf("%x\n", recv_buf[0]);
+    //printf("%x\n", recv_buf[1]);
+    //printf("%x\n", recv_buf[2]);
+    //printf("%x\n", recv_buf[3]);
+    //printf("%x\n", recv_buf[4]);
+
+    size_t bufsize = (numlights * 3) + 14;
+    char bytes[bufsize];
+    for(int j = 0; j < bufsize; j++)
+    {
+        bytes[j] = 0x00;
+    }
+    bytes[0] = 0xff;
+    bytes[1] = 0xff;
+    bytes[2] = 0xff;
+    bytes[3] = 0xff;
+    bytes[4] = 0xff;
+    bytes[5] = 0xff;
+    bytes[6] = 0x73;
+    bytes[7] = 0x6c;
+    bytes[8] = 0x65;
+    bytes[9] = 0x64;
+    bytes[10] = 0x73;
+    bytes[bufsize-1] = 0xfd;
+    bytes[bufsize-2] = 0xfe;
+    bytes[bufsize-3] = 0xff;
 
 
-
-
-        /* On success, sp_blocking_write() and sp_blocking_read()
-         * return the number of bytes sent/received before the
-        * timeout expired. We'll store that result here. */
-
-
+    for( int i = 0; i < numlights; i++)
+    {
+        bytes[(i * 3) + 11 + 1] = 0xff;
 
         /* Send data. */
-        result = check(sp_blocking_write(port, &sd, size, timeout));
+        result = check(sp_blocking_write(port, &bytes, bufsize, timeout));
 
         /* Check whether we sent all of the data. */
-        if (result == size)
+        if (result == bufsize)
         {
-            printf("Sent %d bytes successfully, %i lit leds.\n", size, sd.litleds);
+            printf("Sent %d bytes successfully, %i lit leds.\n", bufsize, numlights);
         }
         else
         {
-            printf("Timed out, %d/%d bytes sent.\n", result, size);
+            printf("Timed out, %d/%d bytes sent.\n", result, bufsize);
         }
 
 
         sleep(2);
     }
-    sd.litleds = 0;
-    result = check(sp_blocking_write(port, &sd, size, timeout));
+    for( int i = 0; i < numlights; i++)
+    {
+        bytes[(i * 3) + 11 + 1] = 0x00;
+    }
+    result = check(sp_blocking_write(port, &bytes, bufsize, timeout));
 
     check(sp_close(port));
     sp_free_port(port);