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2 support in firmware 19
Pi 3 or Zero and with a little software configuration
Class 10 UHS-I up to 30MB/s Read and 12MB/s Write
They tend to draw ~15mA or so in practice but for precise numbers you must measure the current in your usage circuit
Alternate channel functions allow the channels to be used as: General-purpose digital outputs (0 or 5 V)
Useless Machine Counter Upgrade - Kit AVR 2 support in firmware 19If you already have one of our Useless Machines, and you would like to upgrade it to be a Useless Machine with counter, this is what you need. Features Easy soldering kit Fun upgrade for your Useless Machine Powered by the Useless Machine's batteries Bright display, counts up to 9999 Auto sleep to save power Hackable extra functions Included in the kit Useless Machine Counter PCB Switch, bezel, mounting hardware, power cable and electronic components