user40546: Does anyone know what the I/O line voltage level is on the Tinyduino?
Tinyduino
I want to run a MAX7219 LED array with it, like this one:
LED Array

user4143: Whatever your power supply voltage is. If you run it from 5V you get 5V IO. If you run it from a 3V coin cell you get 3V IO.

40546: <p>Does anyone know what the I/O line voltage level is on the Tinyduino?</p>

<p><a href="https://tinycircuits.com/collections/processors/products/tinyduino-processor-board?variant=14479557959" rel="nofollow noreferrer">Tinyduino</a></p>

<p>I want to run a MAX7219 LED array with it, like this one:</p>

<p><a href="https://www.ebay.com/itm/MAX7219-Dot-led-matrix-MCU-control-LED-Display-module-for-Arduino-Raspberry-Pi/272583013958" rel="nofollow noreferrer">LED Array</a></p>
 4143: <p>Whatever your power supply voltage is. If you run it from 5V you get 5V IO. If you run it from a 3V coin cell you get 3V IO.</p>
