 //=======================================
 
 // 'digitalWrite' command
-// ex: W031 - set pin 3 HIGH, W100 - set pin 10 LOW
+// W031 - set pin 3 HIGH
+// W100 - set pin 10 LOW
 void _write()
 {
   byte pin = bctoi(1, 2);

}

// 'analogRead' command
// ex: RA0
// result in mV
void aread()
{

}

void pp() {
  pulsePin(POWER_PIN, 20);
}

//=======================================

// 'battery voltage' command
// result in mV and mA
void battery()
{
  float shuntvoltage = ina219.getShuntVoltage_mV();
  float busvoltage = ina219.getBusVoltage_V();
  int current_mA = int(ina219.getCurrent_mA());
  unsigned long voltage = (unsigned long)(busvoltage * 1000 + shuntvoltage);
  Serial.write('b');
  Serial.println(voltage);
