Embedded Electronics

By textbook definition, Embedded Electronics can be defined as a system that “Integrates Hardware circuitry with software programming techniques to provide real-time solutions”. From age old pocket calculators to advanced automobile and security devices the applications of Embedded System continue to show a strong progress.

In this section we will discuss about the various embedded controllers and embedded development platforms including, but not limited to Arduino, Raspberry Pi, NodeMCU, ESP32, Microchip, AVR, ARM, MSP430, STM32, STM8S, Nuvoton etc. It also updates the readers with latest Embedded News and technology trends to help them plan and design their Embedded Projects with ease.

Being away at sea for months makes even simple things like "where is he now?" hard to answer. Reddit user mrnks13, who is about to spend nearly four months on a ship from France to Singapore, built his girlfriend a small answer to that question. It is a wooden birdhouse with an ESP32 inside, a three-colour e-paper map that shows where his ship is, and a thermal printer on the roof that prints…

Reddit maker MrShatanas found four large old circuit boards in a garage and decided they were too good-looking to throw away. One of them is now a piece of sci-fi wall art: a 3D-printed frame packed with lights, a slow-motion fan and a pointer that answers YES or NO to your questions. A single Waveshare ESP32-C6 board with a built-in 1.47 inch LCD runs the whole thing.

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Engineer adouglass52 designed a custom compute module in the Raspberry Pi CM4 format, built around the Rockchip RV1126B, a vision processor with a 3 TOPS NPU. With the first boards just back from JLC, the maker ran it against a CM4 (CM4101000) on the same carrier board with the same two IMX415 cameras, using stock tools on both and the median of three runs.

What is on the board

The…

Most bedside clocks are either too bright to sleep next to or too dim to read. Reddit maker udota wanted a soft white clock that does not light up the whole nightstand, so he skipped the LEDs entirely. His build throws the time onto the ceiling using nothing more than a 1.3 inch OLED, an ESP32-C3 and a single glass lens.

The OLED is the light source

Commercial projector clocks usually…

Most engineers who work with microcontrollers eventually run into the same challenge. A project needs to respond faster than firmware can, or it requires several digital signals to be combined in hardware. While these tasks can often be handled with interrupt service routines or external logic ICs, the solution quickly becomes complex as the design grows. This is…

An oscilloscope is the one instrument every electronics engineer reaches for when a circuit misbehaves. A multimeter tells you a single number, but an oscilloscope shows how a voltage changes over time: the shape of a PWM signal, the bounce of a switch, or the ripple on a sensor output. Bench oscilloscopes are expensive, though, and the best way to understand how one…

Speech recognition models like OpenAI’s Whisper offer high levels of accuracy, but their base model itself consumes up to 140MB and running them on a low-end device like an ESP32 is difficult. In this tutorial, we are going to run Cactus Compute’s Whistle Speech-to-Text Model launched on 2nd of October 2026. The actual size of the model is 16.9MB, which won't fit…

Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today announced the RL78/G21, a new member of its RL78 family. Renesas holds the No. 1 global market share in 16-bit MCUs (Note 1). The RL78/G21 MCU extends that leadership into the next generation of smart appliances. Optimized for smart system control, the new MCU product series RL78/G21…

Speech recognition on a microcontroller usually means a short list of fixed commands. Boumedine Billal has gone much further: his open-source project runs a full speech-to-text model live on an ESP32-P4, a chip that costs about $5. You talk into the board's microphone and any English sentence appears on its screen as you speak, with no Wi-Fi, no cloud and no neural accelerator. On the standard…

These days, we are heavily dependent on cloud computing, high-speed internet and all. We rarely think about what happens if the internet goes down or what happens in areas where the network is not reachable or information access is very difficult. The main solution is having the data and its processing locally so that they are reachable anytime, even without internet…

Running DOOM on odd hardware is an old tradition, but Artur Bieniek has picked one of the tightest targets yet: the FNIRSI DMC-100, a budget clamp meter built around an Artery AT32F415 microcontroller with just 32 KB of RAM. His open-source port of doomgeneric plays the whole first episode of Freedoom on the meter's 320x240 colour screen, with sound effects on the buzzer, and it averages 29…

The Nokia E6, the 2011 Symbian business phone with a QWERTY keypad and a 640x480 touchscreen, is getting a second life as a Linux machine. Developer fluffleswaffles has brought up Linux 6.12 on it. The project's milestone log starts with a first boot to a BusyBox shell on 13 October, and the kernel now drives the phone's own display, runs the Wayland compositor weston with the foot terminal,…

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