Full Graphic Smart Controller case with Brightness & Contrast adjustment knobs

thingiverse

This is a custom design based on Pablo's case from http://www.thingiverse.com/thing:213852, enhanced with precision-milled holes for either one or two high-quality potentiometers. I created a compact pot knob utilizing http://www.thingiverse.com/thing:41274 and integrated a precise shaft component. Install the pot knobs on the other side, securing them with a washer if necessary. Align the small cross on the base of the shaft precisely with your chosen pot before closing the top cover securely. For control over the backlight brightness, perform the following modifications: First, carefully remove the SMD resistor labeled RBL. Next, use a high-precision drill to create three delicate holes in accordance with the photograph (utilize a 0.9 mm bit; avoid accidentally drilling through adjacent electrical tracks). Insert a precision-made 10 KOhm potentiometer and solder its central contact point directly to LCD pin 2. Finally, attach a precise 100 Ohm resistor between the LCD's pin 4 and the leg of the potentiometer labeled one.