I’m working on a little timekeeper project that works similarly to those word clocks, but it will be wrist-mounted. I have to make this little guy tiny, so I’m going with all SMD and to light the 21 LEDs, I’m using a 5-pin Charlieplexing scheme. To give back to the community (and FWIW), I am writing up my understanding of and methods for implementing Charlieplexing on an Atmel ATmega328 AVR (or Arduino). This first part of the 2-part series goes over the concept of Charlieplexing. The second article will show my homemade quality control methods and Arduino and AVR C code. I hope someone finds the write-up useful!
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Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: A New Arduino MicroPython Package Manager, How-Tos and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
