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So I have this Raspberry Pi cluster that is connected to a SONOFF S20 WiFi plug that has custom firmare on it. I can ping that plug using Linux and curl to power on/off my cluster. But I want to be able to power it on from GPRS without having to open up a VPN in my router and use WiFi. That is how I came up with the idea of using an Arduino R3 WiFi board (because it can take 5V) and a SIM800L module (also 5V caable). I've fashioned a custom enclosure for this project and it all fits in nicely. ...
cypresstwist

Neotrellis Synth

Posted by cypresstwist Mar 14, 2020
Acoustics Enter Your Electronics & Design Project for a chance to win an $200 Shopping cart of product! Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll   This is an Adafruit Neotrellis M4 synth board. It can run Arduino and Circuit Python. I run some audio samples with the following code on it:   import time import board import busio import audioio import adafruit_fancyled.adafruit_fancyled as fancy import adafruit_trellism4 import adafruit_adxl ...