diy projects
Build a 2 Hz to 33.5 MHz Signal Generator on One AVR EB Chip
One AVR chip, a keypad, and an OLED become a bench signal generator that covers 2 Hz to 33.5 MHz in 2 Hz steps…
diy projects
KENSAT: A Home-Built CubeSat Running a TinyLlama LLM in Orbit
A home-built 2U CubeSat runs a TinyLlama model on a Jetson Orin Nano and does its AI thinking in orbit before radioing results back…
diy projects
Raspberry Pi Cyberdeck Turns a Teensy Into a Pocket Music Studio
A Raspberry Pi 4 and Teensy 4.1 team up as a pocket M8-tracker music workstation you can build in a single weekend, screen and…
diy projects
WeAct N006: A Credit-Card-Sized Jetson Orin NX Carrier Board
The credit-card-sized WeAct N006 crams a Jetson Orin NX and 40W of edge-AI power into a drone-ready board for about $130. Here is what…
diy projects
The Tanmatsu Handheld: An ESP32-P4 Palmtop Built for Hackers
Born a conference badge, the Tanmatsu is now a real open-source ESP32-P4 palmtop. Here is how the RISC-V handheld actually holds up a year…
3d printing
Build a 3D-Printed Fallout Laser Tag Blaster With a Pico 2 W
A maker spent a year turning a 3D printer and a Raspberry Pi Pico 2 W into an arcade-grade, Fallout-themed laser tag system. Here's…
diy projects
Acid Drip: Build a Portable RP2040 TB-303 Acid Synth Clone
Maker Marcus Dunn cloned the legendary Roland TB-303 around an RP2040 and Mozzi - a portable acid synth with a drum machine you can…
diy projects
A $200 DIY Pick-and-Place Machine That Handles 0201 Parts
Industrial pick-and-place machines cost a fortune. One maker built a four-axis version for $200 that still nails 0201 parts. Here's how it works.
diy projects
How to Build a Piso WiFi Vendo in the Philippines (Full Guide)
Build your own piso wifi vendo with an Orange Pi and a coin acceptor. Full parts list, wiring, and LPB Piso WiFi setup -…
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…