Blog

ESP32 Cheap Yellow Display (CYD) Guide with a Jellyfish example

shabaz — Sun, 29 Mar 2026 18:15:16 GMT

Table of Contents Introduction CYD Features Is It Any Good? CYD Connections Reference RGB LED Micro SD Socket UART and BOOT pin Audio Output Spare Input/Output Connections Touch Interface TFT Screen, Backlight and Light Sensor (Light Dependent Res...(read more)

Wide 3D-Printed Breadboard Can Fit MCUs with No Wasted Pins

Catwell — Thu, 19 Mar 2026 20:36:55 GMT

Ludwin created four versions of the 3D-printed wide breadboard for different microcontrollers. (Image Credit: Ludwin) I love this. A brilliant idea. And, I so want these. Breadboards are useful for testing electronic projects. But they can’t s...(read more)

Arduino Launches New Board Integrated With AI - VENTUNO Q

Catwell — Tue, 10 Mar 2026 05:47:32 GMT

The Arduino VENTUNO Q SBC is perfect for robotics development. (Image Credit: Arduino) Arduino recently announced the launch of a new single-board computer, the Arduino VENTUNO Q, which combines AI with real-time control. It features the Qualcomm Dr...(read more)

I wrote a hands-on Raspberry Pi Pico 2 project book — free review copies for embedded developers

micheal.embedded — Tue, 03 Mar 2026 20:10:00 GMT

Hi everyone,I’m Michael I write embedded systems books for beginners and professionals. I recently released: Embedded Systems with Raspberry Pi Pico 2 and RP2350: Projects and Deep Dives The book is built around the Raspberry Pi Pico 2 powered ...(read more)

Infosec Developer Emulates X86 Processer Using CSS

Catwell — Fri, 27 Feb 2026 20:54:13 GMT

(Image Credit: Growtike/Unsplash) You might think it is impossible to emulate an x86 processor using a web-based stylesheet language. Estonia-based infosec coder Lyra Rebane managed to pull that off in CSS without using JavaScript, WASM, or any othe...(read more)

Availability of Bare-Die (KGD) MCU and Sub-GHz Transceiver (Standalone or Integrated)

cylee_acc — Sat, 21 Feb 2026 06:21:47 GMT

Hello, I am looking for a bare-die (KGD) version of an MCU (preferably Cortex-M3, M4, M33, or M7) and also a Sub-GHz RF transceiver, either standalone (TX/RX only) or with an integrated MCU. Could you please advise whether bare-di...(read more)

Researchers Build Computer That Runs on Light

Catwell — Fri, 13 Feb 2026 20:28:47 GMT

Illustration of the team’s light-based computer. (Image Credit: Nature (2025). DOI: 10.1038/s41586-025-09838-7) Researchers at Queen’s University have developed a light-based computer capable of performing a wide range of complex tasks, ...(read more)

Polpotronics Launches PicoIDE, An Emulator for Retro Hardware

Catwell — Wed, 11 Feb 2026 21:00:57 GMT

xPicoIDE emulates hard drives and CD-ROM drives,replacing physical components in a vintage PC. (Image Credit: Polpotronics/Crowd Supply) While we love our old PC parts for the nostalgia, they can stop working at any time. Computer enthusiasts would ...(read more)

The Future of RISC-V in Mainstream Embedded Design

Catwell — Wed, 07 Jan 2026 20:59:36 GMT

(Image credit: RISC-V) For the past 15 years, the RISC-V instruction set architecture (ISA) has remained on the fringes of mainstream embedded design, offering numerous interesting benefits but deemed too immature to replace established alternatives...(read more)

Top 10 Dev Boards in 2025: What’s Hot and Why?

Catwell — Fri, 12 Dec 2025 06:33:47 GMT

(Image credit: PXHere) Development boards continue to evolve as designers push for more computing power, lower power consumption, better connectivity, and integrated AI acceleration. The boards released over the last year reflect those notions, with...(read more)

MSPM0 Open Drain IO duty cycle controlled by a timer

Jan Cumps — Wed, 19 Nov 2025 19:08:50 GMT

The Texas Instruments MSPM0 microcontroller has a few open drain IOs. TI calls them ODIO. In this post, I show that they can be controlled by a timer. More specific: one of the MSPM0 PWM peripherals will control the duty cycle of an open dr...(read more)

switch up to 5V and 8 mA with MSPM0 Open Drain IO

Jan Cumps — Tue, 18 Nov 2025 19:46:33 GMT

The Texas Instruments MSPM0 microcontroller has a few open drain GPIOs. TI calls them ODIO. These are 5V tolerant, and can switch up to ( see jc2048 comment below) +-8 mA. The main purpose is to support multi-level IO. They&...(read more)

pdsink: USB-PD 3.2 sink stack for embedded devices

pvit — Sun, 16 Nov 2025 02:33:26 GMT

USB-C PD is everywhere now, and a lot of embedded designs only need one thing: be a sink and behave correctly. In practice, available PD stacks usually come with at least one hard constraint: vendor lock-in / NDA / no public sources, tied to a speci...(read more)

Smallest GPU in The World is All Set for Production

Catwell — Fri, 14 Nov 2025 20:45:34 GMT

The TinyGPU v2.0 converts 3D vector graphics into raster images. (Image credit: Pongsagon Vichit/X) Pongsagon Vichit, an FPGA designer and retro PC fanatic, recently announced TinyGPU v2.0. This GPU works like an independent processor, performing 3D...(read more)

EasyL1105 GUI Composer Demo: JSON interface between MSPM0 and PC GUI

Jan Cumps — Thu, 16 Oct 2025 19:40:58 GMT

Texas Instrument's GUI Composer can be used to design with LCD displays. But it also has a useful API for the MSPM0: JSON communication over UART. This is a low footprint mechanism where you can exchange data with a PC GUI, or with another ...(read more)