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Fix rawled: GRB RED={0x00,0xFF,0x00}, differentiate 0/1 bit timing

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Ashley Strahle
2026-06-23 14:47:48 +00:00
parent bec8025f0a
commit 715aca3365
1 changed files with 14 additions and 17 deletions
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src/main.cpp
+13 -16
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@@ -125,29 +125,26 @@ void handle_serial_command(const String& cmd) {
} else if (cmd == "rawled") {
uint8_t pin = 9;
Serial.println("[CMD] Bit-bang WS2812: pixel 0 = RED on GPIO 9");
uint32_t colour = 0x00FF00;
uint8_t colour[] = {0x00, 0xFF, 0x00};
noInterrupts();
for (int i = 0; i < 24; i++) {
if (colour & (1 << (23 - i))) {
digitalWrite(pin, HIGH);
esp_rom_delay_us(800);
digitalWrite(pin, LOW);
esp_rom_delay_us(450);
} else {
digitalWrite(pin, HIGH);
esp_rom_delay_us(400);
digitalWrite(pin, LOW);
esp_rom_delay_us(850);
for (int byte_idx = 0; byte_idx < 3; byte_idx++) {
uint8_t val = colour[byte_idx];
for (int bit = 7; bit >= 0; bit--) {
gpio_set_level((gpio_num_t)pin, 1);
if (val & (1 << bit)) {
esp_rom_delay_us(1);
}
gpio_set_level((gpio_num_t)pin, 0);
if (!(val & (1 << bit))) {
esp_rom_delay_us(1);
}
}
for (int i = 0; i < 7; i++) {
digitalWrite(pin, LOW);
}
gpio_set_level((gpio_num_t)pin, 0);
esp_rom_delay_us(50);
}
interrupts();
Serial.println("[CMD] Sent. Wait 2 sec...");
delay(2000);
digitalWrite(pin, LOW);
Serial.println("[CMD] Done");
} else {
Serial.println("[CMD] Unknown command. Type 'help'");