File content as of revision 2:49dab8d9637a:

/*
 * Example to demonstrate usage of the nrf52's SAADC in differential working\
 * mode.
 *
 * Made by Jurica Resetar @ aconno
 * jurica_resetar@yahoo.com
 * More info @ aconno.de
 *
 * All rights reserved
 *
 */
 
 
 
#include "mbed.h"
#include "acd_nrf52_saadc.h"
#include "GDEP015OC1.h"

#define ANALOG_PIN_P    (5)
#define ANALOG_PIN_N    (6)
#define PRINT           (1)

#if PRINT
    #include "nrf52_uart.h"
    NRF52_UART uart(p25, p26, Baud9600);
    char buffer[255];
    #define SEND(...) {uint8_t len = sprintf(buffer, __VA_ARGS__); uart.send(buffer, len);}
#else
    #define SEND(...)
#endif

SPI spi(p3, NC, p4);
GDEP015OC1 epd = GDEP015OC1(spi, p5, p6, p7, p8);

int main(void){
    NRF52_SAADC pot(ANALOG_PIN_P, ANALOG_PIN_N);
    
    int16_t rawData;
    float voltage;
    char buffer[256];
    
    sprintf(buffer, "Differential ADC inputs:");
    epd.writeString(buffer, 30, 30, 0);
    sprintf(buffer, "AIN%d and AIN%d.", ANALOG_PIN_P, ANALOG_PIN_N);
    epd.writeString(buffer, 30, 50, 0);
    epd.writeFull();
    
    
    while(1){
        rawData = pot.read();
        voltage = rawData*(3.6/512);
        sprintf(buffer, "ADC voltage is: %f", voltage);
        epd.writeString(buffer, 30, 70, 0);
        epd.write();
        sprintf(buffer, "ADC voltage is: %f", voltage);
        epd.writeString(buffer, 30, 70, 1);
        epd.write();
    }
}