Involvement:Expert (understands the inner workings) - Ownership:less than 1 day
Very cheap and functional LCD shield. Worked perfectly out of the box. Example code ran fine as long as the correct pin configuration is used just as several others have documented in their reviews.
It took some digging through earlier reviews to figure out the pin configuration. The biggest drawback is the blue pot for adjusting the contrast. It's taller than the display itself, making mounting inside a case very hard. Either desolder it and insert a smaller pot, or just find a contrast setting you like, measure the resistance and swap out the pot for a normal resistor of the correct value.
If you can see the display light up, but can't see any letters, try adjusting the pot clockwise with a small screwdriver until the letters appear (on my unit this took maybe ten turns before the letters appeared).
Very good display for the price with the exception of the blue pot if you're thinking of mounting this in a case.
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