These pages are devoted to my research, resources and projects using the Arduino and Raspberry Pi microcontroller and microcomputer.

Sometimes the Rii 518 Keyboard connected to the Raspberry Pi will need to be reset in order to connect. Use the detail below to attempt a Master Reset.

The Rii RT518 Mini Keyboard

Hold the FN + F1 key for 10 seconds.

1. Make sure the keyboard is OFF
2. Press and hold F1 on the keyboard
3. Whilst F1 is still being pressed, turn the keyboard ON
4. Release F1 (as soon as you switch the keyboard on)

also the touch-pad can be accidentally switched off:

with keyboard disconnected hold down FN + F5 while pressing down  “Mouse” button. Top row top left.


Useful Links

Explorer Pro Hat

Servo HAT

Pi Zero 4-port USB Hub Hat

10A Arduino motor driver MD Shield

Gertboard Manual

Gordon Henderson’s Projects

SG90 Tower Servo

LED Battery Level Monitor