Bread-board circuit for testing LCD and keyboard

A project log for Data Logger Shield

Shield for NUCLEO-F103RB, it's a logger of pulses received from four external devices. Has WiFi, sdCard, keyboard and LCD.

RobertRobert 08/25/2021 at 14:510 Comments

I've created a draft of the device using bread-board to check if I correctly connected LCD to stm32 nucleo and to have something to do driver development before ordering PCB. In addition I've added to the board up/down/left/right keys.

Connections changes to original schematic:

LCD connection:


I've also tried to solder the part responsible for dimming the LCD but having only MOSFETs in SOT-23 package, it seems to much to work.