Adafruit TPS65131 Split Power Supply Boost Converter touch screen with speaker You can use it for

You can use it for all sorts of things

It manages the pull-ups and scanning automatically and stores keypress/release events in a 10-element FIFO queue

Compact and Slim Design: With an outer diameter of 2

The shield measures approximately 48

USB native support with bootloader and serial port debugging

Adafruit TPS65131 Split Power Supply Boost Converter touch screen with speaker You can use it forNeed those tricky split rail voltages for your vintage electronics? The Adafruit TPS65131 Split Rail Boost Converter generates both positive and negative voltage rails from a single 3 5V input. This makes it great for mimicking or replacing a transformer based power supply or something that needs negative bias. We kept the design compact, and it even has adjustable output pots, so you can tune the voltages from about +6~+15VDC and 6~ 15VDC. Perfect