Friday, December 27, 2013

LCDuino in action

Here are some pictures of LCDuino. First, the board itself, just after being reflowed - no LCD attached:


This is the LCDuino ribbon cable plugged into my breadboard. The two jumpers at the bottom are supplying LCDuino with power and ground. The jumper at the top is running up to a simple current transformer interface circuit (a 2.5 volt divider and a 0.1 uF cap to ground on one lead, an analog input pin on the other leg, and a 56 ohm burden resistor between the two):

And here's the display... a simple ammeter / amp-hour meter sketch reading the current transformer:



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