Low power Arduino menu using tcmenu library
In this article we’ll discuss building a low power Arduino menu using tcMenu library. We will use a TFT screen and a rotary encoder connected to a PCF8574 device. The device will be SAMD MKR board. I’ve picked this choice purposely, because it’s non-trivial, and requires a lot of digging to make sure power usage is a low as possible. Running an Arduino menu on battery If the device can be powered from the mains, then power usage is probably not the biggest issue.
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