diy projects
Build a Pocket Signal Generator With the AVR16EB28 and an OLED
An AVR16EB28, a 4.194304 MHz crystal and a spare pair of I/O lines make a 2 Hz to 33 MHz square-wave signal generator that…
microcontrollers
Seeed XIAO SAMD21 Plus and RP2040 Plus Double the GPIO Count
Seeed kept the postage-stamp footprint but pushed the XIAO SAMD21 to 30 GPIO and the RP2040 to 29, with onboard battery charging from $4.90.
microcontrollers
Olimex’s Neo6502kbd Hides a Real MOS 6502 Inside a 50-Euro Keyboard
Olimex put a genuine WDC W65C02 under a wedge-shaped keyboard, paired it with an RP2040 for video and USB, and priced the Apple II…
arduino
Arduino VENTUNO Q Runs a Vision Model on a Robot Arm
A $299 Arduino VENTUNO Q runs a vision-language-action model on-board, teaching an SO-101 robot arm to pick and place from just 50 demonstrations.
microcontrollers
Someone Squeezed a Generative AI Image Model Onto a $1 RP2350
Five seconds, 520 KB of RAM and about a dollar of silicon: the RP2350 inside the Raspberry Pi Pico 2 is now generating 128x128…
arduino
Arduino’s Zephyr RTOS Core Hits 1.0.0: What Changes for Makers
Arm killed MbedOS, so Arduino rebuilt on Zephyr. The 1.0.0 core adds Nicla Vision camera support, Zephyr 4.4.1, and VENTUNO Q silicon.
microcontrollers
Add a CircuitPython Watchdog So Your Build Reboots Itself
A frozen microcontroller mid-demo is fixable in ten lines. The CircuitPython watchdog module lets your board detect its own hang and reset itself.
diy projects
Tiwaz: An STM32 Split Keyboard That Is Also Two Macro Pads
Timo Strube's Tiwaz splits into two standalone macro pads with joysticks, runs QMK on an STM32F401, and ships every hardware file open source.
diy projects
Arduboy’s $39 CHGame Rev0: A RISC-V Handheld Built for Hacking
Arduboy's CHGame Rev0 is a $39 bare-board handheld: 48 MHz RISC-V, a 128x128 color LCD, and every GPIO pin broken out for hacking.
microcontrollers
PwrBlock 323: An STM32 Programmable PSU Built Into Your Test Rig
Everypin built a 1-32V programmable supply that bolts inside your test jig and takes SCPI commands over USB. No more hand power-cycling boards at…
iot & smart home
Upline Puts an ATtiny85 Online Using 4,060 Bytes of Flash
Upline is an open source serial protocol that gets an ATtiny85 or Arduino UNO on the web through a USB cable, using 4,060 bytes…
microcontrollers
BrainBoard1500 Puts Neuromorphic AI on an Arduino Nicla Board
BrainChip's AKD1500 accelerator lands on an Arduino Nicla footprint with 32 neural cores, 4 MB flash, and a current monitor for measuring the power…