Ozeki Matrix Keyboard Control Code

MPR121 capacitive touch keypad controller is capable to sense 12 buttons. When you touch a button, the character is sent to this OZEKI software. The 12 characters are numbers (0-9) plus * and #. You can connect the MPR121 to your Ozeki Display Module. (LCD Display Code)

ozeki display module with diplay and touchpad — Figure 1 - Ozeki Display Module with display and touchpad

Required hardware

Ozeki Display Module
LCD Display
Touchpad MPR121

Source code to install on controller

Before you upload this code to your Arduino, please format the EEPROM...

#include <OzIDManager.h>
#include <OzKeyboardController.h>

OzIDManager* manager;
OzKeyboardController* keyboardController;

void setup() 
{
  Serial.begin(115200);

  manager = new OzIDManager;
  manager->_sendACK = true;
  manager->_checksum = true;

  OzCommunication::setIDManager(manager);

  keyboardController = new OzKeyboardController();

  //continues if keyboard has been detected
  int x = 1;
  manager->sendLinkSetup();
  manager->PrintWelcomeLine(keyboardController, x++, "MyKeyboard");
  Wire.begin();
}

void loop() {
  OzCommunication::communicate();
  keyboardController->ownLoop();
}

More information

Arduino Uno | Ozeki Display Module