M5StickC Plus + GridEye
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#include <M5StickCPlus.h> | |
#include <Wire.h> | |
#include <SparkFun_GridEYE_Arduino_Library.h> | |
GridEYE grideye; | |
void setup() { | |
// put your setup code here, to run once: | |
M5.begin(); | |
Wire.begin(0,26); | |
M5.Lcd.println("Hello, world!"); | |
grideye.begin(); | |
} | |
const float TEMP_COLOR_S = 255; | |
const float TEMP_COLOR_V = 255; | |
const float TEMP_COLOR_MAX = 35; | |
const float TEMP_COLOR_MIN = 20; | |
uint16_t temp2color(float temp) { | |
float scaled = (temp - TEMP_COLOR_MIN) * (350 / (TEMP_COLOR_MAX - TEMP_COLOR_MIN)); | |
if (scaled < 0) { | |
scaled = 0; | |
} else if (scaled > 350) { | |
scaled = 350; | |
} | |
float color_s = TEMP_COLOR_S; | |
float color_v = TEMP_COLOR_V; | |
float color_h = 240 - scaled; | |
while (color_h < 0) { | |
color_h += 360; | |
} | |
while (color_h > 360) { | |
color_h -= 360; | |
} | |
float color_max = color_v; | |
float color_min = color_max - ((color_s / 255) * color_max); | |
float color_diff = color_max - color_min; | |
uint16_t color; | |
if (color_h < 60) { | |
color = M5.Lcd.color565( | |
color_max, | |
(color_h/60)*color_diff + color_min, | |
color_min | |
); | |
} else if (color_h < 120) { | |
color = M5.Lcd.color565( | |
((120 - color_h)/60)*color_diff + color_min, | |
color_max, | |
color_min | |
); | |
} else if (color_h < 180) { | |
color = M5.Lcd.color565( | |
color_min, | |
color_max, | |
((color_h - 120)/60)*color_diff + color_min | |
); | |
} else if (color_h < 240) { | |
color = M5.Lcd.color565( | |
color_min, | |
((240 - color_h)/60)*color_diff + color_min, | |
color_max | |
); | |
} else if (color_h < 300) { | |
color = M5.Lcd.color565( | |
((color_h - 240)/60)*color_diff + color_min, | |
color_min, | |
color_max | |
); | |
} else { | |
color = M5.Lcd.color565( | |
color_max, | |
color_min, | |
((360 - color_h)/60)*color_diff + color_min | |
); | |
} | |
//Serial.printf("temp: %.2f scaled: %.2f color_h: %.2f color: %04x\n", temp, scaled, color_h, color); | |
return color; | |
} | |
void loop() { | |
// put your main code here, to run repeatedly: | |
//M5.Lcd.fillScreen(BLACK); | |
M5.Lcd.setCursor(0,0); | |
//M5.Lcd.printf("Device temp: %f\n", grideye.getDeviceTemperature()); | |
float temp_data[64]; | |
float max_temp = -100; | |
float min_temp = 100; | |
for (unsigned short int i = 0; i < 64; i++) { | |
temp_data[i] = grideye.getPixelTemperature(i); | |
max_temp = temp_data[i] > max_temp ? temp_data[i] : max_temp; | |
min_temp = temp_data[i] < min_temp ? temp_data[i] : min_temp; | |
} | |
TFT_eSprite img = TFT_eSprite(&M5.Lcd); | |
img.createSprite(128, 128+30); | |
img.printf("Device temp: %.2f\n", grideye.getDeviceTemperature()); | |
img.printf("Maximum temp: %.2f\n", max_temp); | |
img.printf("Minimum temp: %.2f\n", min_temp); | |
for (unsigned short int i = 0; i < 8; i++) { | |
for (unsigned short int j = 0; j < 8; j++) { | |
uint16_t color = temp2color(temp_data[i*8 + j]); | |
img.fillRect(i*16, j*16 + 30, 16, 16, color); | |
} | |
//M5.Lcd.printf("Pixel %d: %f\n", i, temp_data[i]); | |
} | |
img.pushSprite(0, 20); | |
img.deleteSprite(); | |
delay(100); | |
} |
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