news & releases
Circuit.Rocks Sponsors SparkFest 2026: GDG PUP Hackathon on July 9
Circuit.Rocks is an official hardware sponsor of SparkFest 2026 - the Google Developer Group PUP hackathon on July 9 at PUP Main Campus, Bulwagang…
diy projects
Open Book Touch: The ESP32-S3 E-Reader Built to Be Hacked
A $149 open-source e-reader runs on an ESP32-S3, sips under a milliamp while reading, and hands you the firmware, PCB, and CAD to hack…
diy projects
This Giant ATmega Chip Doubles as a Qi Wireless Charger
Nick Electronics supersized the ATmega chip every Arduino fan loves into a working Qi wireless charger, three prototypes and one 90C meltdown later.
diy projects
Build a Live Flight Tracker on the Feather RP2350 This Weekend
Turn a Feather RP2350 and a 3.5-inch TFT into a desktop flight tracker that spots planes on 1090 MHz and even flags lunar transits…
diy projects
Pi Zero Cyberdeck: A Pocket Linux Rig With a 3.5″ Screen
A Raspberry Pi Zero 2 W, a 3.5-inch GPIO screen, and a thumb keyboard fold into a pocket Linux rig. Here is how the…
diy projects
Weekend Build: A Moon-Transit Flight Tracker on Feather RP2350
A desktop flight tracker on the Feather RP2350 that flags the exact second an aircraft crosses the Moon. A two-board weekend electronics build.
diy projects
Weekend Build: A DIY SteamVR AR Headset on an ATmega32u4 PCB
Maker Manolo's Sideloader 3.3 packs SteamVR head tracking into a wearable AR headset built on a bare ATmega32u4 chip and a custom PCB, no…
diy projects
The PocketMage: An Open-Source ESP32-S3 E Ink PDA Goes Live
Meet the PocketMage: an open-source ESP32-S3 pocket PDA pairing a dual E Ink and OLED display for distraction-free writing, notes, and light coding.
diy projects
This DIY STM32L4 Smartwatch Puts Every Sensor in Your Control
A maker built an open-source STM32L4 smartwatch with a six-axis IMU, BLE, and USB-C mass storage, then released every line of firmware to fork.
diy projects
Bitluni’s 8,192-Core DIY GPU Is Built From 13-Cent RISC-V Chips
8,192 RISC-V microcontrollers, six-layer blades, 650 amps and a pogo-pin flashing rig. Inside the cheapest, strangest GPU ever soldered together.
diy projects
Raspberry Pi 4 Serves Offline Classrooms: Inside the LEAP Node
T4EQ built a Raspberry Pi 4 that caches school video lessons and serves 40 tablets over a local router, with zero internet needed after…
diy projects
Build a Keychain Game Console with a Raspberry Pi Pico 2 W
Ronald Nelson crammed a 13-game retro console, Wi-Fi, and a custom 52KB OS into a keychain-sized shell built on the Raspberry Pi Pico 2…
raspberry pi
Build Your Own Rocky: A Raspberry Pi 5 AI Robot That Talks
A maker rebuilt Rocky from Project Hail Mary using a Raspberry Pi 5, seven servos, and Claude AI so it can chat and scuttle.…