Paul McCabe] wrote in to let us know about his $25 robot. This small wheeled robot is based on an ESP32 and made using cardboard and hot glue. You drive the contraption using a Bluetooth game ...

We created a comprehensive ESP32 CAM Telegram bot tutorial that can capture images and record custom-duration AVI videos, ...

An RGB LED module is a versatile lighting component that can produce millions of colours by mixing red, green, and blue light. The RGB LED module used in this ESP32-S3 Box-3 Arduino programming ...

I wanted to build a high-quality internet radio that could connect to both my local Ethernet network and a WiFi access point. This setup allows me to record radio broadcasts—especially France ...

In a rare slip-up, the US Federal Communications Commission (FCC) accidentally published confidential iPhone 16e schematics, ignoring Apple’s explicit request for secrecy. The 163-page PDF briefly ...

A Planet Analog article, “2N3904: Why use a 60-year-old transistor?” by Bill Schweber, inspired some interest in this old transistor and how it’s commonly used, and if any uncommon uses might exist.

When it is needed to weight larges objects, a simple scale is often not convenient. I found this issue when weighting my bike. So, I created small scales which send measurement to a module which show ...

Abstract: Contribution: This study uses a qualitative research method to analyze interviews where participants simplified an electric circuit while explaining their thought process.Background: ...

There’s no shortage of Geiger counter projects based on the old Soviet SBM-20 tube, it’s a classic circuit that’s easy enough even for a beginner to implement — so long as they don’t get bitten by the ...

We previously noted the ESP32 Arduino Core 3.0.0 Alpha release added support for ESP32-C6 and ESP32-H2 among other changes. The good news is that Arduino ESP32 Core 3.0.0 is now considered stable, and ...