From 223cf26e288ab75bfd6ee9912e3f2b36d7cef57e Mon Sep 17 00:00:00 2001
From: Morgan Garcia <morgan.garcia@skizzles.org>
Date: Wed, 18 Jun 2025 00:32:29 -0700
Subject: [PATCH] Update moza.c

moza_update function

Updated variable name to perctflt and changed the value to multiply the quotient of rpm/maxrpm by 100.

Made int perct variable to round perctflt to nearest whole number.

Updated LED activation ranges so that all 10 LEDs get activated when given rpm percentage is reached.
---
 src/monocoque/devices/serial/moza.c | 36 ++++++++++++++++-------------
 1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/src/monocoque/devices/serial/moza.c b/src/monocoque/devices/serial/moza.c
index 0c66f7e..8c0bae1 100644
--- a/src/monocoque/devices/serial/moza.c
+++ b/src/monocoque/devices/serial/moza.c
@@ -9,17 +9,17 @@
 #include "../serialadapter.h"
 #include "../../slog/slog.h"
 
-#define MOZA_TIMEOUT 1000
+#define MOZA_TIMEOUT 2000
 #define MOZA_SERIAL_TEMPLATE {0x7e, 0x06, 0x41, 0x13, 0xfd, 0xde, 0x0, 0x0, 0x0, 0x0, 0x0}
 #define MOZA_NUM_AVAILABLE_LEDS 10
 #define MOZA_BLINKING_BIT 7
 #define MOZA_PAYLOAD_SIZE 11
-#define MOZA_MAGIC_VALUE 0x0d
+#define MOZA_MAGIC_VALUE 13
 #define BIT(nr) (1UL << (nr))
 
 unsigned char moza_checksum(unsigned char *data)
 {
-    unsigned char ret = MOZA_MAGIC_VALUE;
+    unsigned int ret = MOZA_MAGIC_VALUE;
     for (short i = 0; i < MOZA_PAYLOAD_SIZE; i++)
     {
         ret += data[i];
@@ -32,37 +32,41 @@ int moza_update(SerialDevice* serialdevice, unsigned short maxrpm, unsigned shor
 {
     unsigned char bytes[] = MOZA_SERIAL_TEMPLATE;
     int size = MOZA_PAYLOAD_SIZE;
-    float perct = (float)rpm/(float)maxrpm;
+    float perctflt = ((float)rpm/(float)maxrpm)*100;
+    int perct = round(perctflt);
 
-    if (perct >= .1)
+    if (perct >= 10)
         bytes[9] |= BIT(0);
 
-    if (perct >= .2)
+    if (perct >= 20)
         bytes[9] |= BIT(1);
 
-    if (perct >= .3)
+    if (perct >= 30)
         bytes[9] |= BIT(2);
 
-    if (perct >= .4)
+    if (perct >= 40)
         bytes[9] |= BIT(3);
 
-    if (perct >= .5)
+    if (perct >= 50)
         bytes[9] |= BIT(4);
 
-    if (perct >= .6)
+    if (perct >= 60)
         bytes[9] |= BIT(5);
 
-    if (perct >= .7)
+    if (perct >= 70)
         bytes[9] |= BIT(6);
 
-    if (perct >= .8)
-        bytes[8] |= BIT(7);
+    if (perct >= 80)
+        bytes[9] |= BIT(7);
 
-    if (perct >= .9)
-        bytes[8] |= BIT(8);
+    if (perct >= 90)
+        bytes[8] |= BIT(0);
+
+    if (perct >= 92)
+        bytes[8] |= BIT(1);
 
     // blinking
-    if (perct >= .95)
+    if (perct >= 94)
         bytes[8] |= BIT(MOZA_BLINKING_BIT);
 
     bytes[10] = moza_checksum(bytes);