Arduino tips #arduino #debug #cheatsheet #tips

ARDUINO.md

Show all devices

ls /dev

Dump

sudo cu -s 115200 -l /dev/tty.usbserial-1420 > ~/usbserial-1420.txt

Handle wireless button press

Hardware

• 433Mhz RF Receiver Module
• Wall Lamp Remote Control Switch
• Arduino UNO R3

Manual

• 433Mhz Receiver
• How 433MHz RF Tx-Rx Modules Work & Interface with Arduino

Code

/*
  Simple example for receiving
  
  https://github.com/sui77/rc-switch/
*/

#include <RCSwitch.h>

RCSwitch mySwitch = RCSwitch();

void setup()
{
  Serial.begin(9600);
  mySwitch.enableReceive(0); // Receiver on interrupt 0 => that is pin #2
}

void loop()
{
  if (mySwitch.available())
  {

    Serial.print("Received ");
    Serial.print(mySwitch.getReceivedValue());

    Serial.print(" / ");

    Serial.print(mySwitch.getReceivedBitlength());
    Serial.print("bit ");

    Serial.print("Protocol: ");
    Serial.print(mySwitch.getReceivedProtocol());

    Serial.print(" Delay: ");
    Serial.print(mySwitch.getReceivedDelay());

    Serial.println();

    mySwitch.resetAvailable();
  }
}

Output

$ sudo cu -s 9600 -l /dev/tty.usbserial-1420
Password:
Connected.
Received 499570 / 24bit Protocol: 1 Delay: 320
Received 499570 / 24bit Protocol: 1 Delay: 320
Received 499570 / 24bit Protocol: 1 Delay: 325
Received 499570 / 24bit Protocol: 1 Delay: 320
Received 499570 / 24bit Protocol: 1 Delay: 320
Received 499570 / 24bit Protocol: 1 Delay: 320
Received 499570 / 24bit Protocol: 1 Delay: 321
Received 499570 / 24bit Protocol: 1 Delay: 325
Received 499570 / 24bit Protocol: 1 Delay: 321