tweak the ambient light level stuff

firmware/user/main.c

@@ -3,6 +3,8 @@
  * GAT Addon Firmware
  * by true
  *
+ * version 0.0.1
+ *
  * code was made for different random addons I designed for dc32,
  * then adapted to each one. so things might be a mess.
  *
@@ -17,7 +19,8 @@
  *
  * notes:
  *
- * - last 2K of flash memory is reserved for configuration storage.
+ * - last 2K of flash memory is reserved for configuration storage
+ * - accelerometer code isn't done by DC32
  */
 
 #include <ch32v20x.h>

firmware/user/src/adc.c

@@ -10,14 +10,33 @@
 #include "adc.h"
 
 
-
+/* original map when ADC was being more constrained
 static const uint8_t led_brightness_map[] = {
-    47, 40, 34, 32,      // 0 = maybe outside, or really bright inside. 1-3 = indoors
+    47, 40, 35, 32,      // 0 = maybe outside, or really bright inside. 1-3 = indoors
     30, 28, 27, 25,     // 4-7 = indoors
     23, 21, 19, 18,     // 8-11 = indoors normal
     17, 16, 15, 13,     // 12 = dimmest normal, 13 = darker, 14-15 darker still
     11,  9,  7,  5      // 16-19 = from night room light to computer light
 };
+*/
+
+// new map now that ADC is acting different
+// still don't know why
+// but there is a lot of self-illumination problem
+static const uint8_t led_brightness_map[] = {
+    47, 44, 42, 41,
+    40, 38, 36, 34,
+    32, 31, 30, 29,
+    27, 25, 21, 19,
+    17, 16, 15, 15,     // indoors normal brightness
+    14, 14, 13, 13,
+    12, 12, 12, 11,
+    11, 11, 10, 10,
+    10,  9,  9,  9,
+     8,  8,  8,  8,
+     7,  7,  7,  7,
+     7,  6,  6,  6
+};
 
 
 
@@ -150,7 +169,7 @@ void adc_process_lsens()
                 // calculate adjustments
                 if (lsens_val > LSENS_COARSE_UP) {
                     lsens_coarse++;
-                    if (lsens_coarse > 0x7f) lsens_coarse = 0x7f;
+                    if (lsens_coarse > 0x3f) lsens_coarse = 0x3f;
                 } else if (lsens_val < LSENS_COARSE_DOWN) {
                     if (lsens_coarse) lsens_coarse--;
                 }
@@ -183,7 +202,7 @@ uint8_t adc_get_lsens_coarse()
     return lsens_coarse;
 }
 
-uint8_t adc_get_brightness_map(uint8_t level)
+uint8_t adc_get_brightness(uint8_t level)
 {
     if (!level) {
         // are you outside? why? it's too fucking hot
@@ -194,7 +213,7 @@ uint8_t adc_get_brightness_map(uint8_t level)
         }
     }
 
-    if (level > sizeof(led_brightness_map)) {
+    if (level >= sizeof(led_brightness_map)) {
         return led_brightness_map[sizeof(led_brightness_map) - 1];
 
     }

firmware/user/src/adc.h

@@ -17,8 +17,8 @@
 #define LSENS_K_PIN         GPIO_Pin_3
 #define LSENS_ADC_CH        ADC_Channel_3
 
-#define LSENS_COARSE_UP     0x680       // counts higher than this increase lsens_coarse, maximum 64
+#define LSENS_COARSE_UP     0x690       // counts higher than this increase lsens_coarse, maximum 64
-#define LSENS_COARSE_DOWN   0x580       // counts lower than this decrease lsens_coarse, minimum 1
+#define LSENS_COARSE_DOWN   0x5a0       // counts lower than this decrease lsens_coarse, minimum 1
 
 enum lsens_mode {
     LSENS_READING_IDLE = 0,
@@ -43,7 +43,7 @@ void adc_process_lsens();
 uint16_t adc_get_lsens();
 uint8_t adc_get_lsens_coarse();
 
-uint8_t adc_get_brightness_map(uint8_t level);
+uint8_t adc_get_brightness(uint8_t level);
 
 
 

firmware/user/src/led.c

@@ -159,7 +159,7 @@ void led_rgb_update()
     uint16_t scale[3];
 
     uint8_t lsens = adc_get_lsens_coarse();
-    uint8_t max = adc_get_brightness_map(lsens);
+    uint8_t max = adc_get_brightness(lsens);
 
     // this isn't a matrix so we can just update whenever
     // but we need to scale to ambient light level

firmware/user/src/ui.c

@@ -141,5 +141,6 @@ void ui_render()
 
     // set LED current based on ambient light level
     w = adc_get_lsens_coarse();
-    is31fl3729_set_global_current(FL3729_ADDR, adc_get_brightness_map(w));
+    w = adc_get_brightness(w);
+    is31fl3729_set_global_current(FL3729_ADDR, w);
 }