news & releases
Eight Free Maker Tools Just Launched at Circuit.Rocks
Eight free maker calculators just landed at Circuit.Rocks: LED resistor, voltage divider, PCB trace width, logic-level checker, BOM-to-Cart, and more. No login, instant math,…
3d printing
SHINING 3D FreeScan Trak Nova Halves Ball Mill Inspection Time
A Chilean engineering firm folded a handheld laser scanner into its mining-equipment checks and cut ball mill inspection time in half. Here's how it…
3d printing
SHINING 3D FreeScan Trak Nova Cuts Ball Mill Inspection in Half
A Chilean engineering shop swapped calipers for a handheld laser scanner and halved ball mill inspection time. Here is how 3D scanning scales to…
diy projects
Build a Handheld GPS Compass on the Adafruit Feather RP2350
Turn a Feather RP2350, a 9-DoF IMU, and a GPS module into a pocket navigator that draws a live compass rose and never needs…
diy projects
AR4 Mark 5: This Open-Source 6-Axis Robot Arm Is Finally Done
Chris Annin's open-source AR4 6-axis robot arm just got its final Mark 5 revision, swapping in Hall effect sensors and shipping a fresh build…
diy projects
Build Your Own ESP32 Walkie-Talkies With ESP-NOW
A pair of XIAO ESP32S3 boards plus ESP-NOW make 3D-printed walkie-talkies that hold a voice link past 200 meters, no Wi-Fi or cell signal…
diy projects
Weekend Build: A Pocket GPS Compass on the Feather RP2350
Spend a weekend building a pocket GPS compass: a Feather RP2350, PA1010D GPS, and a 9-DoF IMU draw a live, tilt-aware heading on a…
diy projects
Adafruit Feather Builds: A GPS Compass and a Pocket Game Console
A GPS compass that always points you home and a Feather-powered handheld game console — broken down into stackable, weekend-friendly maker builds.
news & releases
Python Projects for Raspberry Pi: PIO, Sensors, and ML on Pico
Ben Everard's new book Python Projects for Raspberry Pi takes you past blinking LEDs into PIO, I2C sensors, and on-device machine learning on Pico.
3d printing
Build This Coin-Sized RP2040 Media Controller for Your Desk
A maker shrank a full media controller down to coin size with an RP2040-Zero and CircuitPython. Here's how the tiny plug-and-play knob works.
esp32 & esp8266
Q8botOne: A Palm-Sized Open Source Quadruped Robot Ships Soon
Q8botOne is a palm-sized open source quadruped robot that walks, trots, and jumps right out of the box — no parts-sourcing marathon needed to…
esp32 & esp8266
Carl Bugeja’s ProtoBot Puts an ESP32-C6 Robot in Your Pocket
Carl Bugeja's ProtoBot is a 92-gram, ESP32-C6 powered RC robot that's open source, app-controlled, and built for hands-on robotics tinkering.