Analog Navigation KeyPad Library

Simple analog keypad designed to recognize simultaneous button presses. Has a central 5-way joystick and two (left and right) buttons.

Can be used with a micro-controller, e.g. Arduino, or with a full blown machine connected to it via USB->GPIO, e.g. MCP2221A Breakout

Hardware

Schematics and PCB.

Schematics and PCB for SMD Version

PinOut

Pin	Name	Description
1	VCC	Voltage supply. Connect to VCC of your controller.
2	A1	Connect to analog input of your controller.
3	A2	Connect to another analog input of your controller.
4	NC	Not connected.
5	AGND	Analog Ground or just Ground

Software Samples

Arduino C/C++:

AnalogNavigationKeyPad.ino - top level example
AnalogNavigationKeyPad.cpp - interface implementation
AnalogNavigationKeyPad.h - interface header

Python:

example.py - top level example
analog_navigation_keypad.py - interface implementation

Sequence of CallBacks

Single Button presses

MyNavKeyPad::onKeyDown vks=VK_SOFTA
MyNavKeyPad::onKeyUp vks=VK_SOFTA

First one then another button being pressed

MyNavKeyPad::onKeyDown vks=VK_SOFTA
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA
MyNavKeyPad::onKeyDown vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onLongKeyDown vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyAutoRepeat vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyUp vks=VK_SOFTA VK_SOFTB
MyNavKeyPad::onKeyUp vks=VK_SOFTB