Unit HBridge Arduino 使用教程

#include "M5Unified.h"
#include "Wire.h"
#include "M5UnitHbridge.h"
 
M5UnitHbridge driver;
uint8_t fw_version = 0;
bool motor_run     = false;
 
void get_current_voltage()
{
    // getMotorCurrent() function only support in Hbridge V1.1 version
    if (fw_version >= 2) {
        Serial.printf("%.2fA\r\n", driver.getMotorCurrent());
    }
    Serial.printf("%.2fV\r\n", driver.getAnalogInput(_12bit) / 4095.0f * 3.3f / 0.09f);
}
 
void setup()
{
    M5.begin();
    Serial.begin(115200);
    M5.Display.setTextDatum(middle_center);
    M5.Display.setFont(&fonts::lgfxJapanMinchoP_24);
 
    while (!driver.begin(&Wire, HBRIDGE_I2C_ADDR, 2, 1, 100000L)) {
        M5.Display.drawString("Unit HBridge init Fail!", M5.Display.width() / 2, M5.Display.height() / 2);
        delay(1000);
    }
 
    fw_version = driver.getFirmwareVersion();
    Serial.printf("Hbridge Firmware Version: %d\r\n", fw_version);
 
    M5.Display.clear();
    M5.Display.drawString("Unit HBridge init OK", M5.Display.width() / 2, M5.Display.height() / 2 - 20);
    M5.Display.drawString("Touch to Start/Stop Motor", M5.Display.width() / 2, M5.Display.height() / 2 + 20);
}
 
void loop()
{
    M5.update();
    auto t = M5.Touch.getDetail();
    if (t.wasClicked() || M5.BtnA.wasClicked()) {
        motor_run = !motor_run;
        M5.Display.clear();
        if (motor_run) {
            driver.setDriverDirection(HBRIDGE_FORWARD);
            // driver.setDriverDirection(HBRIDGE_BACKWARD);
            driver.setDriverSpeed8Bits(127);
            M5.Display.drawString("Motor Running", M5.Display.width() / 2, M5.Display.height() / 2);
        } else {
            driver.setDriverDirection(HBRIDGE_STOP);
            driver.setDriverSpeed8Bits(127);
            M5.Display.drawString("Motor Stop", M5.Display.width() / 2, M5.Display.height() / 2);
        }
    }
    get_current_voltage();
    delay(10);
}