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ATmega4809 Curiosity Nano

ATmega4809 Curiosity Nano

The ATmega4809 Curiosity Nano board is an evaluation board from Microchip featuring one of the larger AVR microcontrollers from the 0-series. The board is designed to be maker-friendly with a familiar form factor supporting headers for breadboard use, plus castellated edges in case you choose to surface mount it. The board has an on-board programmer/debugger […]

ATtiny3217 Curiosity Nano

ATtiny3217 Curiosity Nano

The ATtiny3217 Curiosity Nano is an evaluation board from Microchip featuring one of their newer 1-series AVR microcontrollers. Microchip has made an effort to produce maker-friendly evaluation boards, so there isn’t much difference between this board and any other small microcontroller prototyping board. There is an on-board debugger that programs the chip and connects to […]

Perpetual Battery-Free Weather Station

Perpetual Battery-Free Weather Station

It’s now possible to build remote, low-power microcontroller projects that can operate indefinitely without batteries and still not crash, even if power is interrupted. Let that sink in. As an example, we’ll show you how to build a LoRa-based weather station that’s powered solely by solar panels. Its code is written in CircuitPython, running on a […]

Make a Kaleidoscope With Wireless LEDs

Make a Kaleidoscope With Wireless LEDs

Working with “wireless” LEDs feels a bit like magic. These tiny LED assemblies can emit light without directly connecting to a power supply. The secret to their energy source is a nearby wire coil in which a high-frequency oscillating current generates a fluctuating magnetic field. Each induction-powered LED is attached to its own tiny wire coil, […]