minor UI and adaptive lighting tweaks

aw410k.c

@@ -1,4 +1,5 @@
 #include <stdlib.h>
+#include <math.h>
 
 #include "pico/stdlib.h"
 #include "pico/multicore.h"
@@ -13,7 +14,7 @@
 
 static absolute_time_t lastSend;
 static absolute_time_t lastRead;
-static uint16_t adc_value = 0;
+static uint8_t adc_value = 0;
 static bool mute = false;
 
 static unsigned char buf[BUF_SIZE];
@@ -144,7 +145,7 @@ static struct key key_list[NUM_KEYS] =
 void get_light() {
 	// get ADC reading from LDR every 500ms
 	if ( absolute_time_diff_us(lastRead, get_absolute_time()) >= 500000) {
-		adc_value = adc_read();
+		adc_value = log2(adc_read());
 	}
 }
 
@@ -186,9 +187,9 @@ static void send_color(uint8_t dev_addr) {
 		buf[buf_idx+5] = 0x0A;
 		switch (key_list[key_idx].mode) {
 			case RGB_MODE_ADAPTIVE: // adjust brightness based on LDR ADC reading
-				buf[buf_idx+6] = (ADC_MAX-adc_value)*key_list[key_idx].red/ADC_MAX;
+				buf[buf_idx+6] = (ADC_MAX_LOG2-adc_value)*key_list[key_idx].red/ADC_MAX_LOG2;
-				buf[buf_idx+7] = (ADC_MAX-adc_value)*key_list[key_idx].green/ADC_MAX;
+				buf[buf_idx+7] = (ADC_MAX_LOG2-adc_value)*key_list[key_idx].green/ADC_MAX_LOG2;
-				buf[buf_idx+8] = (ADC_MAX-adc_value)*key_list[key_idx].blue/ADC_MAX;
+				buf[buf_idx+8] = (ADC_MAX_LOG2-adc_value)*key_list[key_idx].blue/ADC_MAX_LOG2;
 				break;
 			case RGB_MODE_MUTE:
 				if (mute) {

aw410k.h

@@ -11,6 +11,7 @@
 #define NUM_KEYS		107
 #define BUF_SIZE		64
 #define ADC_MAX			4096
+#define ADC_MAX_LOG2	log2(ADC_MAX)
 
 enum {
 	RGG_MODE_INVALID=0,

html/index.html

@@ -142,7 +142,7 @@ const keyboard_list = [
 		{id: "Numpad7", label: "Home<br>7"},
 		{id: "Numpad8", label: "Up<br>8"},
 		{id: "Numpad9", label: "PgUp<br>9"},
-		{id: "NumpadAdd", label: "+", height: 2}
+		{id: "NumpadAdd", label: "+", height: 2.2}
 	],
 	[
 		{id: "CapsLock", label: "Caps<br>Lock", width: 2},
@@ -157,8 +157,8 @@ const keyboard_list = [
 		{id: "KeyL", label: "L"},
 		{id: "Semicolon", label: ":<br>;"},
 		{id: "Quote", label: "\"<br>\'"},
-		{id: "Enter", label: "Enter", width: 2.3},
+		{id: "Enter", label: "Enter", width: 2.2},
-		{id: "", label: "", width: 3.4},
+		{id: "", label: "", width: 3.55},
 		{id: "Numpad4", label: "Left<br>4"},
 		{id: "Numpad5", label: "5"},
 		{id: "Numpad6", label: "Right<br>6"}
@@ -182,7 +182,7 @@ const keyboard_list = [
 		{id: "Numpad1", label: "End<br>1"},
 		{id: "Numpad2", label: "Down<br>2"},
 		{id: "Numpad3", label: "PgDn<br>3"},
-		{id: "NumpadEnter", label: "Enter", height: 2}
+		{id: "NumpadEnter", label: "Enter", height: 2.2}
 	],
 	[
 		{id: "ControlLeft", label: "Control", width: 2},
@@ -192,11 +192,11 @@ const keyboard_list = [
 		{id: "AltRight", label: "Alt", width: 2},
 		{id: "MetaRight", label: "FN"},
 		{id: "ContextMenu", label:"Menu"},
-		{id: "ControlRight", label: "Control", width: 1.7},
+		{id: "ControlRight", label: "Control", width: 1.6},
 		{id: "ArrowLeft", label: "Left"},
 		{id: "ArrowDown", label: "Down"},
 		{id: "ArrowRight", label: "Right"},
-		{id: "Numpad0", label: "Ins<br>0", width: 2},
+		{id: "Numpad0", label: "Ins<br>0", width: 2.2},
 		{id: "NumpadDecimal", label: "Del<br>."}
 	],
 ];
@@ -339,6 +339,12 @@ function updateColor() {
 			channel.value = 255;
 		} else if (parseInt(channel.value) < 0) {
 			channel.value = 0;
+		} else if ( isNan(parseInt(channel.value)) ) {
+			// non-numerical value entered, set to default
+			channel.value = 128;
+		} else {
+			// make sure that value in box reflects what parser thinks
+			channel.value = parseInt(channel.value);
 		}
 	}