People are normally using MCU boards for their low cost, low-power consumption, low price and/or real-time ability. The Raspberry Pi Pico is no exception, but if you don’t care about using a large board, Waveshare created a 177 x 62 mm “expander” board for the Raspberry Pi Pico that can take four modules.
The company’s Quad GPIO Expander board includes a set of female headers for RPi Pico, and four sets of 2×20 male headers for extra modules that bring support for 14500 batteries, OLED displays, RTC, relays, and other compatible modules.
- A UPS Module for Raspberry Pi Pico that can take a 18650 battery and featuring an I2C interface for battery level monitoring ($14.99 without battery)
- An unknown relay module
- An RTC Module For Raspberry Pi Pico based on DS3231 chip. Takes a CR2012 coin-cell battery. ($8.99 without battery)
- An unknown e-paper display module
Further research shows some Raspberry Pi Pico modules in the accessories part of the Wiki.
The Quad GPIO Expander for Raspberry Pi Pico can be purchased on Waveshare store, or Seeed Studio with the latter also selling some of the compatible modules on the page, including the UPS module, LCD & OLED display modules, and the RTC module.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.