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A project log for DoMSnif - Dot Matrix LCD Sniffer Bluetooth Adapter

Output dot matrix LCD data from different devices to your phone or laptop via Bluetooth.

bleckyBlecky 06/30/2019 at 06:510 Comments

Whipping together a quick prototype adapter board for the NRF52 Feather was pretty simple. The main thing to note was level conversion between the 5V LCD signal lines and the 3.3V pins of the feather which in this case was achieved through some resistor dividers. The 5V line is connected to the VBUS (5V) input of the Feather to power the board from the LCD cable.

A smaller, more streamlined board will be created later. But now there's software to write!

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