This article introduces CPICOM -- an emulator for CP/M 2.2 on the Raspberry Pi microcontroller.
On websites, and in hobbyist kits for Raspberry Pi and Arduino, you'll often see I2C devices connected that have different supply voltages. This is (usually) safe and, in non-critical applications, tends to work. But why?
This article describes how to generate and use compressed, anti-aliased font data, for use in a microcontroller application.
The Maxim DS3231 I2C real-time clock is a reasonably accurate, inexpensive device, that is easy to interface to the Raspberry Pi Pico.
This article describes how to construct a desktop photo clock using a Raspberry Pi Pico and some solder-free peripherals.
I've been using the Raspberry Pi Pico for embedded projects for the last two years or so. What do I think of it now?
The MAX7219 IC is widely used to control an 8x8 matrix of LED, but they can be chained to create much larger displays. This article describes how the chaining works, and how to create a driver for the Raspberry Pi Pico.
A specific application of the Pico7219 library that I described in an earlier article.
This is the first of (at least) two articles on loading and running arbitrary executable code into RAM on the Pico, and running it.
This is the second of (at least) two articles on loading and running arbitrary executable code into RAM on the Pico, and running it.
The Pi Pico has USB host support, and can work with a USB keyboard. Although there are some programming examples, the general approach to programming USB host operations is not well documented.
This is a versatile touchscreen display module with a strikingly low cost. But is it any good?
The Pi Pico is an impressive microcontroller for its size and cost, but it lacks specific non-volatile memory. This article explains how to use the program flash ROM for that purpose.