LAB 2B Expansion Board Proposal
This program aims to light 2 different LEDs based on the character input by the user. On pressing the key " C " , the green LED starts blinking , and the blue LED blinks upon pressing the key " D". The SCL1 pin of the QTPy RP2040 is connected to the GPIO23 pin and the SDA1 pin is connected to the GPIO22 pin. We set the GPIO direction to out using gpio_set_dir and initialise the GPIO pins 22 and 23. The user input is read by using getchar_timeout_us which accepts a single character.
This image is a representation of the pins present on the QTPy RP2040.
- Breadboard
- LEDs( Blue and green)
- Resistors( 1K Ohm and 100 Ohm)
- RP2040 Microcontroller
- STEMMA QT Cable