button_toggle_led

Button Toggle LED

In this code we set the pin 7 to be a pullup input and we monitor it until it changes state to toggle the led on pin 3.

Hardware Required:

• Raspberry pi
• Arduino Uno
• USB 2.0 cable type A/B
• Button
• LED
• 220 or 330 ohm resistor
• Breadboard and jumpers.

Diagram:

You can download the fritzing diagram to take a closer look to the schematic here

Compiling the projects and flashing to Arduino

cargo build
sudo avrdude -p m328p -c arduino -P /dev/ttyACM0 -b 115200 -U flash:w:target/avr-atmega328p/debug/button_toggle_led.elf

Result: