Atomic Clock Trades Receiver for an ESP8266 - The advantage of a radio-controlled clock that receives the time signal from WWVB ... - https://hackaday.com/2025/04/07/atomic-clock-trades-receiver-for-an-esp8266/ #microcontrollers #atomicclock #clockhacks #radioclock #simulator #esp8266 #wwvb

First PCB with the Smallest MCU? - [Morten] works very fast. He has already designed, fabbed, populated, and tested a... - https://hackaday.com/2025/04/04/first-pcb-with-the-smallest-mcu/ #microcontrollers #microcontroller #tiny

How a Tiny Relay Became a USB Swiss Army Knife - Meet the little board that could: [alcor6502]’s tiny USB relay controller, now evo... - https://hackaday.com/2025/04/05/how-a-tiny-relay-became-a-usb-swiss-army-knife/ #microcontrollers #swissarmyknife #computerhacks #linuxhacks #swissknife #pcbhacks #boot0 #relay #servo #stm32 #news #uart #usb

If you've ever wrestled with fixed-point math, scaling, and rounding, this blog post is for you!

I go deeper into binary arithmetic, division tricks, rounding, and what it really takes to build fixed-point systems that work.

As always, I appreciate all of your feedback and corrections.

https://shafq.at/fixed-point-tutorial-2.html

Pi Pico Turns Atari 2600 into a Lo-fi Photo Frame - The cartridge based game consoles of decades ago had a relatively simple modus ope... - https://hackaday.com/2025/03/27/pi-pico-turns-atari-2600-into-a-lo-fi-photo-frame/ #microcontrollers #retrocomputing #photoframe #pipico #atari

Metal Detector Built With Smartphone Interface - If you think of a metal detector, you’re probably thinking of a fairly simple devi... - https://hackaday.com/2025/03/25/metal-detector-built-with-smartphone-interface/ #microcontrollers #microcontroller #metaldetector #smartphone #toolhacks #esp32

Three SPI Busses Are One Too Many on This Cheap Yellow Display - The Cheap Yellow Display may not be the fastest of ESP32 boards with its older mod... - https://hackaday.com/2025/03/20/three-spi-busses-are-one-too-many-on-this-cheap-yellow-display/ #cheapyellowdisplay #microcontrollers #esp32 #spi

World’s Smallest Blinky, Now Even Smaller - Here at Hackaday, it’s a pretty safe bet that putting “World’s smallest” in the ti... - https://hackaday.com/2025/03/19/worlds-smallest-blinky-now-even-smaller/ #microcontrollers #microcontroller #microsoldering #attiny20 #tantalum #blinky #led

Speeding Up Your Projects With Direct Memory Access - Here’s the thing about coding. When you’re working on embedded projects, it’s quit... - https://hackaday.com/2025/03/18/speeding-up-your-projects-with-direct-memory-access/ #directmemoryaccess #microcontrollers #embedded #code #dma

Checking In On the ISA Wars and Its Impact on CPU Architectures - An Instruction Set Architecture (ISA) defines the software interface through which... - https://hackaday.com/2025/03/18/checking-in-on-the-isa-wars-and-its-impact-on-cpu-architectures/ #instructionsetarchitecture #microcontrollers #currentevents #hardware #interest #cpuisa #risc-v #x86_64 #mips #arm

Ask Hackaday: What Would You Do With the World’s Smallest Microcontroller? - It’s generally pretty easy to spot a microcontroller on a PCB. There are clues apl... - https://hackaday.com/2025/03/17/ask-hackaday-what-would-you-do-with-the-worlds-smallest-microcontroller/ #microcontrollers #texasinstruments #hackadaycolumns #microcontroller #askhackaday #cortex #arm #bga #mcu

A 6502, In The Shell - Shell scripting is an often forgotten programming environment, relegated to simple... - https://hackaday.com/2025/03/17/a-6502-in-the-shell/ #microcontrollers #softwarehacks #shellscript #linuxhacks #shell

Pi Hand is a Digital Display of a Different Sort - Hackers enjoy a good theme, and so it comes as no surprise that every time March 1... - https://hackaday.com/2025/03/14/pi-hand-is-a-digital-display-of-a-different-sort/ #microcontrollers #robotshacks #robotichand #piday #pi

ClockworkPi Unveils New PicoCalc Handheld - Do you like scientific calculators? Don’t bother answering that question, you’re r... - https://hackaday.com/2025/03/14/clockworkpi-unveils-new-picocalc-handheld/ #scientificcalculator #microcontrollers #raspberrypipico #handheldshacks #raspberrypi #clockworkpi

Writing an OLED Display Driver in MicroZig - Although most people would use C, C++ or MicroPython for programming microcontroll... - https://hackaday.com/2025/03/08/writing-an-oled-display-driver-in-microzig/ #softwaredevelopment #microcontrollers #microzig #ziglang #rp2040 #zig

the aftermath of prototyping

Low-Resolution Fluid Simulation On An ESP32 - Fluid simulations are a key tool in fields from aerospace to motorsports and even ... - https://hackaday.com/2025/02/28/low-resolution-fluid-simulation-on-an-esp32/ #microcontrollers #fluidmechanics #simulation #liquid #esp32 #gas

esp-hal, a Stable-API ESP32 HAL Gift For Your Rust Code - Looking to write Rust on the ESP32? You’re in luck, a new challenger has entered t... - https://hackaday.com/2025/02/27/esp-hal-a-stable-api-esp32-hal-gift-for-your-rust-code/ #microcontrollers #softwarehacks #esp-idf #esp32 #rust

A Tiny Computer With a 3D Printed QWERTY Keyboard - The ESP32 family are the microcontrollers which just keep on giving, as new versio... - https://hackaday.com/2025/02/11/a-tiny-computer-with-a-3d-printed-qwerty-keyboard/ #microcontrollers #palmtopcomputer #handheldshacks #qwerty #esp32

I've moved to a new server, so it's #introduction time :D

Hello, world! I'm John and I'm always trying to be a better dad, husband, and ally

Here's a list of interests that you'll see me post about:
#programming (C, Go, Python, Lisp)
#emacs
#linux (Debian, Fedora, Rocky)
#RetroComputing (Tandy, Commodore)
#VintageComputing
#RetroGaming (Genesis, SNES, Dreamcast)
#art (Pottery, Watercolor)
#Microcontrollers (Arduino, Teensy, FastLED)
#electronics
#nature (Hiking)
#HomeAutomation (openHAB)