Exemplo de código: Controle de energia para sensores e LED

The Mercury altimeter has sensors and the Neopixel LED's turned off by default. This feature exists so that items can be turned off in deep or light sleep as needed to save power and operate at maximum efficiency. It does mean though that you need to turn the power on before you use items.

/*
 * Mercury V1 (ESP32-C6) Power control example
 * Turns on the Status LED power as well as the IMU power (Gyroscope and Accelerometer)
 */
#include "Mercury_Pins.h"

void setup() {
    pinMode(VACC, OUTPUT);
    pinMode(LEDPOWER, OUTPUT);
    digitalWrite(VACC, HIGH);
    digitalWrite(LEDPOWER, HIGH);
}

#pragma once
/*
 * Mercury (ESP32-C6) Pin Definitions
 * Board-specific GPIO assignments
 */

// ── Status LED (NeoPixel) ──
#define LEDPOWER      3    // NeoPixel power (drive HIGH to enable)
#define LED           2    // NeoPixel data signal

// ── I2C Bus ──
#define SDA           21   // I2C data
#define SCL           22   // I2C clock

// ── Sensor Power ──
#define VACC          20   // Sensor power rail (drive HIGH to enable)

// ── General Purpose Ports ──
#define GP06          6    // GP06 port
#define GP07          7    // GP07 port

// ── High Current Output ──
#define OUT1          5    // High current output (e.g. pyro / relay)

// ── Battery Bar LEDs ──
#define BL1           4    // Battery LED 1 (lowest)
#define BL2           14   // Battery LED 2
#define BL3           15   // Battery LED 3
#define BL4           18   // Battery LED 4
#define BL5           19   // Battery LED 5 (highest)

// ── Indicators ──
#define DISK          8    // Disk activity LED

// ── Analogue / Detection ──
#define BATIN         0    // Battery voltage (1:1 divider)
#define USBDETECT     1    // USB power detect (HIGH = USB present)