Step 5: Artsy Fartsy Floating LCD
Well, it kinda turned out OK. It does look cool at night - the super bright white LEDs really light up the wall - not bad for 20mA each. I guess it looks OK during the day too. Still, I think it's going to take a while for the wife to accept it mixed in with her fancy pants art objects.
To supply power I simply used a five volt phone charger that had a USB charging plug. That plugs right into the board's USB port and provides power. The coin cell keeps the 32 kHz crystal and timer running even in a power loss. I measured the current drain from the coin cell at under 15 micro amps.
To supply power I simply used a five volt phone charger that had a USB charging plug. That plugs right into the board's USB port and provides power. The coin cell keeps the 32 kHz crystal and timer running even in a power loss. I measured the current drain from the coin cell at under 15 micro amps.
LCD_Layout.svg269 KB
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