process the message once received
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// Example = 001#aa00ff | |
// Split message at '#' into pixel_number and hex_colour | |
const auto pixel_end = framedata.indexOf('#', 0); | |
const auto pixel_number_str = framedata.substring(0, pixel_end); | |
const auto hex_colour_str = framedata.substring(pixel_end + 1); | |
auto pixel_number = pixel_number_str.toInt(); | |
char hex_code[7]; | |
int r, g, b = 0; | |
// Convert hex value to RGB | |
hex_colour_str.toCharArray(hex_code, 7); | |
sscanf(hex_code, "%02x%02x%02x", &r, &g, &b); | |
// Update the lights on the display with the pixel number and rgb values | |
lights::update_pixel(pixel_number, r, g, b); |
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