The repo holds simple examples where the Raspberry Pi Pico receives serial signals via USB, and acts upon the received signals to generate outputs.
Please remember to enable Micropython on the Pico (please see the official Pico documentation for instructions).
The input signal is a number between 1 to 4. The Pico's onboard LED blinks this number of times as output.
On the Pico: save pico1.py as main.py on the Pico itself to have the Pico run the code automatically once it is connected via USB to the Raspberry Pi.
On the Raspberry Pi: run pi1.py. Mac users: remember to update the USB's path in pi1.py. You may also need to install additional modules: see requirements.txt.
The input signal is a numeral representing percentage change of a chosen equity: this is sourced from Yahoo Finance. The Pico uses this signal to drive a servo motor pointer to show the percentage change mechanically.
This example also includes codes for displaying a 'scroll text' on the Raspberry Pi SenseHat's LED display. Mac users can comment out the relevant SenseHat codes appropriately.
On the Pico: connect the servo motor to Pico with power via 3v3 pin, ground to ground, and data signal from GPIO 28. Note the calibration notes on pico2.py prior to running the codes.
On the Raspberry Pi: run pi2.py. You can define the equity shown and the time between updates here.
UNLICENSE