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Eager to explore the interface between music and electronics, and the digital representation of music, we created RPiano: a portable, playable MIDI synthesizer on a Raspberry Pi Pico (RP2040). We developed RPiano over the course of four weeks as our final project for Cornell University’s course Digital Systems Design Using Microcontrollers. This article details our experience building RPiano.
How and why the size of tiny embedded boards matter.
Embedded Linux continues to grow in popularity, with uses in every kind of application. Given its ubiquity, the operating system (OS) must be as robust as possible, able to reestablish itself following critical failures and malfunctions. This article discusses how to use watchdog timers to increase the robustness of embedded-Linux-based solutions.
Noticing a lack of available materials on the Arduino Debugger, I took it upon myself recently to draft something of an introductory "user manual" for this software. Hence, this article!
In Part 1 of this article series, I tested and reviewed Seeed Studio’s SenseCAP K1100 Kit for prototyping IoT apps. This month in Part 2, I discuss the prototype I built using a Wio Terminal and a Vision AI Module from the kit, and an ESP32-based audio player/web server. The system detects when my dog tries to “mark territory” in my yard, then plays an audio warning file of my recorded voice to try to distract the dog and stop the behavior.