circuitrocks - DEV Community

circuitrocks

Sep 22

This ESP32 Reaction Wheel Cube Lands and Balances on One Edge

#esp32 #reactionwheel #robotics #simplefoc

2 min read

circuitrocks

Sep 22

Overclocked RP2350 Pushes 1080p DVI Video With No Framebuffer

#rp2350 #raspberrypipico #microcontrollers #hdmi

2 min read

circuitrocks

Sep 21

Sudo-Pi Zer0: A Raspberry Pi Zero 2 W Handheld Linux Terminal

#raspberrypi #pizero2w #handheld #pcbdesign

2 min read

circuitrocks

Sep 21

Nordic nRF54LC10A: One Chip for BLE, Thread, Zigbee and Matter

#nordicsemiconductor #nrf54l #bluetoothle #matter

2 min read

circuitrocks

Sep 21

Prop-Maker FeatherWing: Add Lights, Sound and Motion to Props

#adafruit #featherwing #neopixel #circuitpython

2 min read

circuitrocks

Sep 20

Robot Poker Chips and Heated Dice: Engineering a Casino Cheat

#microcontroller #pcb #wearables #robotics

3 min read

circuitrocks

Sep 20

Arduino UNO Q Smart Doorbell Runs Its Vision Model On-Device

#arduino #unoq #computervision #smarthome

2 min read

circuitrocks

Sep 20

Build a Private Second Brain on Raspberry Pi With Logseq

#raspberrypi #logseq #syncthing #selfhosted

2 min read

circuitrocks

Sep 9

A Raspberry Pi 5 E Ink Frame That Paints the Birds It Hears

#raspberrypi #eink #birdnet #machinelearning

3 min read

circuitrocks

Sep 9

Tiny Contacts Fits Four Relays Onto a 42 x 38 mm ESP32 Board

#relay #esp32 #iot #homeautomation

2 min read

circuitrocks

Sep 8

Build a Pocket Signal Generator With the AVR16EB28 and an OLED

#avr #microcontrollers #signalgenerator #testequipment

2 min read

circuitrocks

Sep 8

Brass Tubing Is the Frame and the Ground in This ESP32 Handheld

#esp32 #esp32s3 #retrogaming #handheld

2 min read

circuitrocks

Sep 8

warecache Sensor Bins Count Your Parts Using an STM32H723

#stm32 #sensors #mqtt #iot

2 min read

circuitrocks

Sep 7

Seeed XIAO SAMD21 Plus and RP2040 Plus Double the GPIO Count

#xiao #seeedstudio #rp2040 #samd21

3 min read

circuitrocks

Sep 7

No CPU, No Software: This Neural Net Lives Inside an Artix-7 FPGA

#fpga #verilog #neuralnetwork #embeddedai

2 min read

circuitrocks

Sep 7

This NFC Business Card Lights Its LEDs With Borrowed Phone Power

#nfc #pcbdesign #energyharvesting #electronics

3 min read

circuitrocks

Sep 6

Olimex's Neo6502kbd Hides a Real MOS 6502 Inside a 50-Euro Keyboard

#retrocomputing #6502 #olimex #rp2040

3 min read

circuitrocks

Sep 6

Seeed's reComputer RK3576 Kit Runs YOLO11 at 80 FPS for $219

#edgeai #computervision #singleboardcomputer #rockchip

2 min read

circuitrocks

Sep 6

Arduino VENTUNO Q Runs a Vision Model on a Robot Arm

#arduino #robotics #robotarm #edgeai

3 min read

circuitrocks

Sep 5

Someone Squeezed a Generative AI Image Model Onto a $1 RP2350

#rp2350 #raspberrypipico #microcontrollers #edgeai

2 min read

circuitrocks

Sep 5

Arduino's Zephyr RTOS Core Hits 1.0.0: What Changes for Makers

#arduino #zephyr #rtos #microcontrollers

2 min read

circuitrocks

Sep 5

This Arduino Watches a Treadmill With a Webcam to Clock Speed

#arduino #edgeai #bluetooth #computervision

2 min read

circuitrocks

Sep 4

Add a CircuitPython Watchdog So Your Build Reboots Itself

#circuitpython #watchdogtimer #microcontrollers #embedded

3 min read

circuitrocks

Sep 4

Raspberry Pi Bootloader Now Draws Splash Screens on SPI Panels

#raspberrypi #spi #i2c #bootloader

2 min read

circuitrocks

Sep 4

Petoi's Quaddle Is a Foldable ESP32-S3 Quadruped Robot for $99

#robotics #esp32 #quadruped #servos

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2 min read

circuitrocks

Sep 3

Turn Two Knobs Into a Raspberry Pi Internet Radio With MCP3008

#raspberrypi #gpiozero #mcp3008 #adc

2 min read

circuitrocks

Sep 3

Build a $10 ESP32-C3 Fridge Monitor That Logs Its Own Data

#esp32 #esp32c3 #iot #micropython

2 min read

circuitrocks

Sep 3

Bird-Inspired Drone Perches Using 9 Touch Sensors, No Camera

#robotics #drones #tactilesensors #autonomousflight

2 min read

circuitrocks

Sep 2

This Desktop WALL-E Robot Runs on an ESP32-S3 and Talks Back

#esp32 #robotics #servos #aivision

2 min read

circuitrocks

Sep 2

Tiwaz: An STM32 Split Keyboard That Is Also Two Macro Pads

#stm32 #mechanicalkeyboard #qmk #openhardware

2 min read

circuitrocks

Sep 2

Raspberry Pi's CM5 Programming Jig Flashes Modules in One Press

#raspberrypi #computemodule #provisioning #secureboot

2 min read

circuitrocks

Sep 1

Build a Raspberry Pi Flight Tracker That Replays Your Whole Sky

#raspberrypi #adsb #sdr #python

2 min read

circuitrocks

Sep 1

Arduboy's $39 CHGame Rev0: A RISC-V Handheld Built for Hacking

#riscv #handheldconsole #microcontrollers #retrogaming

2 min read

circuitrocks

Sep 1

Build a Palm-Vein Biometric Door Lock with an ESP32 and IR Camera

#esp32 #biometrics #doorlock #sensors

2 min read

circuitrocks

Aug 31

ATtiny816 PCB Business Card Runs 21 LEDs on Harvested NFC Power

#nfc #attiny #pcbdesign #kicad

2 min read

circuitrocks

Aug 31

An ATmega Robot Arm That Serves Badminton Shuttlecocks

#robotics #atmega #arduino #motorcontrol

2 min read

circuitrocks

Aug 31

This ESP32 CHIP-8 Computer Runs on a Flame and a Stirling Engine

#esp32 #chip8 #retrocomputing #powersupply

2 min read

circuitrocks

Aug 30

Wireless ESP32 Bike Brakes: ABS From Car Door Lock Actuators

#esp32 #espnow #actuators #diyelectronics

2 min read

circuitrocks

Aug 30

Banana Pi's BPI-AI2N Packs 15 TOPS of Vision AI Into a Module

#bananapi #edgeai #computervision #singleboardcomputer

2 min read

circuitrocks

Aug 30

WeatherXM D2 Mesh: A Solar LoRa Weather Station With No Wi-Fi

#lora #esp32 #weatherstation #iot

2 min read

circuitrocks

Aug 29

An Arduino Nano ESP32 Robot Flips All 666 Pixels of This Display

#arduino #esp32 #servo #sensors

3 min read

circuitrocks

Aug 29

Never Buy the Same L298N Twice: An Arduino UNO Q Parts Tracker

#arduino #unoq #inventory #i2c

3 min read

circuitrocks

Aug 29

A Parody Apple Laptop Reborn: The RP2350 Mactini Actually Works

#rp2350 #raspberrypipico #freertos #spidisplay

2 min read

circuitrocks

Aug 28

Build a Digital Nose: an SGP30 Sensor That Sniffs Out Spoiled Milk

#sensors #sgp30 #circuitpython #i2c

2 min read

circuitrocks

Aug 28

A XIAO ESP32-S3 Clock Hiding Inside a Fake Linksys WRT Router

#esp32 #xiaoesp32s3 #ntpclock #wifi

2 min read

circuitrocks

Aug 28

Microduck: A $399 Open-Source Biped Robot for Physical AI Labs

#robotics #physicalai #reinforcementlearning #huggingface

2 min read

circuitrocks

Aug 27

TinyML on a Raspberry Pi 3: LesionIQ Scans Skin Lesions Offline

#raspberrypi #tinyml #machinelearning #edgeai

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2 min read

circuitrocks

Aug 27

How ExpressLRS Squeezes Kilometers Out of a 1-Watt ESP32 Link

#esp32 #lora #rfdesign #expresslrs

2 min read

circuitrocks

Aug 27

An ESP32-P4 Runs Doom While Claude Sonnet Fumbles the Controls

#esp32 #esp32p4 #doom #embeddedai

2 min read

circuitrocks

Aug 26

LiteRT on Raspberry Pi 5: Run Gemma and Vision Models Locally

#raspberrypi #edgeai #machinelearning #litert

2 min read

circuitrocks

Aug 26

NVIDIA Jetson Orin Nano 2 Packs 78 TOPS Into a 15-Watt Board

#nvidiajetson #edgeai #robotics #singleboardcomputer

2 min read

circuitrocks

Aug 26

DIY PLC on a PocketBeagle 2: Is a $1,000 Allen-Bradley Fair?

#plc #industrialautomation #pocketbeagle #embedded

2 min read

circuitrocks

Aug 25

Arduino VENTUNO Q: 8-Core Dragonwing SBC With an STM32 Sidekick

#arduino #singleboardcomputer #qualcomm #stm32

2 min read

circuitrocks

Aug 25

How a DIY 1S FPV Quadcopter Reached 5 km and 34 Minutes Aloft

#fpvdrone #quadcopter #expresslrs #batteries

2 min read

circuitrocks

Aug 25

ESPHome Firmware Cuts the Litter-Robot 4 Free From the Cloud

#esp32 #esphome #homeassistant #iot

2 min read

circuitrocks

Aug 24

Build Your Own Cyberdeck: A Raspberry Pi 5 Power Budget Guide

#raspberrypi #cyberdeck #singleboardcomputer #powersupply

2 min read

circuitrocks

Aug 24

RFGEN44: An Open 4.4GHz RF Signal Generator on a PIC16

#rf #signalgenerator #adf4351 #pic16

2 min read

circuitrocks

Aug 24

A Homebrew Motorola 68000 Gets Two Working PCI Slots at 10 MHz

#retrocomputing #fpga #cpld #motorola68000

2 min read

circuitrocks

Aug 23

Ice Dart: The Drone That Spikes Itself Onto a Drifting Iceberg

#robotics #drones #sensors #embedded

3 min read

circuitrocks

Aug 23

Three Corroded WiiMotes, One Working Controller and an ESP32-S3

#repair #retrogaming #esp32 #i2c

2 min read

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