You can find hardware design for this board in Soldered Nokia 5110 LCD Breakout hardware repository. Soldered invests vast amounts of time into hardware & software for these products, which are all ...

mxUnifiedIO device library for Arduino. Device specific driver for the PCD8544 Nokia 5110 LCD display, derived from the Adafruit GFX library. Use SPI shift registers or I2C I/O expanders via the ...

How long can you keep an Arduino circuit running on three AA batteries? With careful design, [educ8s] built a temperature sensor that lasts well over a year on a single charge of three 2250 mAH ...