Raspberry Pi Compatiblity

Brainy Pi GPIO vs Raspberry Pi GPIO

All differences compiled into a table

Unmodified GPIO code works directly on Brainy Pi.

Working examples of Sample Raspberry Pi GPIO codes directly running on Brainy PI without any modifications.

Example 1: Blinking LED on pin 37

1. Connect LED and 220 Ohm resistor to pin 37 as per the image below. 

2. Program to Blink LED on pin 37, Save it as gpio-example1.py

   #import the GPIO and time package
   import RPi.GPIO as GPIO
   import time
   GPIO.setmode(GPIO.BOARD)
   GPIO.setup(37, GPIO.OUT)
   # loop through 50 times, on/off for 1 second
   for i in range(50):
   GPIO.output(37,True)
   time.sleep(1)
   GPIO.output(37,False)
   time.sleep(1)
   GPIO.cleanup()
   

3. Run the program by running command

   sudo python3 gpio-example1.py
   

Example 2: Blinking 2 LED’s on button press

Example does a little input little output and even does a little PWM.

1. Connect LED’s and buttons according to the diagram below. 

2. Program to Blink LED on pin 37, Save it as gpio-example2.py

   # External module imports
   import RPi.GPIO as GPIO
   import time
   # Pin Definitons:
   pwmPin = 18 # Broadcom pin 18 (P1 pin 12)
   ledPin = 23 # Broadcom pin 23 (P1 pin 16)
   butPin = 17 # Broadcom pin 17 (P1 pin 11)
   dc = 95 # duty cycle (0-100) for PWM pin
   # Pin Setup:
   GPIO.setmode(GPIO.BCM) # Broadcom pin-numbering scheme
   GPIO.setup(ledPin, GPIO.OUT) # LED pin set as output
   GPIO.setup(pwmPin, GPIO.OUT) # PWM pin set as output
   pwm = GPIO.PWM(pwmPin, 50)  # Initialize PWM on pwmPin 100Hz frequency
   GPIO.setup(butPin, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Button pin set as input w/ pull-up
   # Initial state for LEDs:
   GPIO.output(ledPin, GPIO.LOW)
   pwm.start(dc)
   print("Here we go! Press CTRL+C to exit")
   try:
      while 1:
          if GPIO.input(butPin): # button is released
              pwm.ChangeDutyCycle(dc)
              GPIO.output(ledPin, GPIO.LOW)
          else: # button is pressed:
          pwm.ChangeDutyCycle(100-dc)
          GPIO.output(ledPin, GPIO.HIGH)
          time.sleep(0.075)
          GPIO.output(ledPin, GPIO.LOW)
          time.sleep(0.075)
   except KeyboardInterrupt: # If CTRL+C is pressed, exit cleanly:
      pwm.stop() # stop PWM
      GPIO.cleanup() # cleanup all GPIO
   

3. Run the program by running command

   sudo python3 gpio-example2.py
   

See More Examples