Display BTC price on dot matrix using Maker Pi Pico

Introduction

In this tutorial, I will share how to display text on dot matrix MAX7219 using Maker Pi Pico, and I program it using CircuitPython. Before that, what text we want to display? It's ok, I will grab the BTC (Bitcoin) price from internet and display it.

Video

Hardware Preparation

This is the list of items used in the video.

• Maker Pi Pico
• ESP8266 ESP-01S WiFi Module
• 4 In 1 MAX7219 Dot Matrix Module
• USB Micro B Cable

Sample Program

This is CircuitPython sample program. You need to include these 4 libraries in you CIRCUITPY/lib folder. You can download it from CircuitPython Library Bundle.

• adafruit_espatcontrol
• adafruit_max7219
• adafruit_framebuf.mpy
• adafruit_requests.mpy

Thank You

References:

• GitHub - circuitpython-ledmatrix from robertgallup
• Adafruit Learn - Raspberry Pi Pico RP2040 with WiFi
• GitHub - Maker Pi Pico CircuitPython IoT examples

Thanks for reading this tutorial. If you have any technical inquiries, please post at Cytron Technical Forum.

"Please be reminded, this tutorial is prepared for you to try and learn.
You are encouraged to improve the code for a better application."