Jurica Resetar / Mbed OS acd52832_Car_battery_ch_2

A simple example for analog input and EPD usage.

Dependencies:   GDEP015OC1 acn_nrf52_saadc aconno_bsp

Fork of acd52832_Car_battery_ch by Jurica Resetar

main.cpp@4:f6f94ef38e6a, 2017-06-29 (annotated)

Committer:
jurica238814
Date:
Thu Jun 29 16:21:53 2017 +0000
Revision:
4:f6f94ef38e6a
Parent:
3:4fb622e929d0
Child:
5:6566725c8835
Mean calculation and voltage/current added. Should work.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jurica238814 0:dc96b5c8e3f6 1 /* Copyright (c) 2017 Aconno. All Rights Reserved.
jurica238814 0:dc96b5c8e3f6 2 *
jurica238814 0:dc96b5c8e3f6 3 * Licensees are granted free, non-transferable use of the information. NO
jurica238814 0:dc96b5c8e3f6 4 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
jurica238814 0:dc96b5c8e3f6 5 * the file.
jurica238814 0:dc96b5c8e3f6 6 */
jurica238814 0:dc96b5c8e3f6 7
jurica238814 0:dc96b5c8e3f6 8 #include "mbed.h"
jurica238814 0:dc96b5c8e3f6 9 #include "acd52832_bsp.h"
jurica238814 0:dc96b5c8e3f6 10 #include "GDEP015OC1.h"
jurica238814 0:dc96b5c8e3f6 11
jurica238814 4:f6f94ef38e6a 12 #define delay_time (1000)
jurica238814 4:f6f94ef38e6a 13 #define ADC_MAX_VALUE (4092)
jurica238814 4:f6f94ef38e6a 14 #define ADC_REF_VOLTAGE (3.6)
jurica238814 4:f6f94ef38e6a 15 #define VOLTAGE_DIVIDER_RATION (130.0/30)
jurica238814 4:f6f94ef38e6a 16 #define CURRENT_FACTOR (36.0)
jurica238814 0:dc96b5c8e3f6 17
jurica238814 0:dc96b5c8e3f6 18 SPI spi(PIN_EPD_MOSI, NC, PIN_EPD_SCK, NC);
jurica238814 0:dc96b5c8e3f6 19 GDEP015OC1 epd = GDEP015OC1(spi, PIN_EPD_CS, PIN_EPD_DC, PIN_EPD_RST, PIN_EPD_BUSY);
jurica238814 0:dc96b5c8e3f6 20
jurica238814 0:dc96b5c8e3f6 21 AnalogIn battery (p28);
jurica238814 0:dc96b5c8e3f6 22 AnalogIn usb1 (p29);
jurica238814 0:dc96b5c8e3f6 23 AnalogIn usb2 (p30);
jurica238814 0:dc96b5c8e3f6 24
jurica238814 0:dc96b5c8e3f6 25 int main(){
jurica238814 0:dc96b5c8e3f6 26 char buffer[25] = {0};
jurica238814 4:f6f94ef38e6a 27 float adc1_mean=0, adc2_mean=0, adc3_mean=0;
jurica238814 4:f6f94ef38e6a 28 int count = 0;
jurica238814 4:f6f94ef38e6a 29
jurica238814 0:dc96b5c8e3f6 30 wait_ms(100);
jurica238814 4:f6f94ef38e6a 31 NRF_SAADC->RESOLUTION = 0x00000002; // Set 12b resolution
jurica238814 0:dc96b5c8e3f6 32 while(true){
jurica238814 0:dc96b5c8e3f6 33
jurica238814 4:f6f94ef38e6a 34 adc1_mean += battery.read_u16();
jurica238814 4:f6f94ef38e6a 35 adc2_mean += usb1.read_u16();
jurica238814 4:f6f94ef38e6a 36 adc3_mean += usb2.read_u16();
jurica238814 4:f6f94ef38e6a 37 count ++;
jurica238814 0:dc96b5c8e3f6 38
jurica238814 4:f6f94ef38e6a 39 if (count == 10){
jurica238814 4:f6f94ef38e6a 40
jurica238814 4:f6f94ef38e6a 41 adc1_mean /= 10;
jurica238814 4:f6f94ef38e6a 42 adc2_mean /= 10;
jurica238814 4:f6f94ef38e6a 43 adc3_mean /= 10;
jurica238814 4:f6f94ef38e6a 44
jurica238814 4:f6f94ef38e6a 45 count = 0;
jurica238814 4:f6f94ef38e6a 46 epd.empty();
jurica238814 4:f6f94ef38e6a 47 epd.writeFull();
jurica238814 4:f6f94ef38e6a 48
jurica238814 4:f6f94ef38e6a 49 sprintf(buffer, "Battery: %5.5fV", adc1_mean*(ADC_REF_VOLTAGE/ADC_MAX_VALUE)*VOLTAGE_DIVIDER_RATION); // Create a string
jurica238814 4:f6f94ef38e6a 50 epd.writeString(buffer,25,70,0); // Write new data to the buffer
jurica238814 4:f6f94ef38e6a 51 epd.write(); // Write string to the EPD
jurica238814 4:f6f94ef38e6a 52
jurica238814 4:f6f94ef38e6a 53
jurica238814 4:f6f94ef38e6a 54 sprintf(buffer, "USB1: %5.5fA", (CURRENT_FACTOR/ADC_MAX_VALUE)*adc2_mean); // Create a string
jurica238814 4:f6f94ef38e6a 55 epd.writeString(buffer,25,90,0); // Write new data to the buffer
jurica238814 4:f6f94ef38e6a 56 epd.write(); // Write string to the EPD
jurica238814 4:f6f94ef38e6a 57
jurica238814 4:f6f94ef38e6a 58 sprintf(buffer, "USB1: %5.5fA", (CURRENT_FACTOR/ADC_MAX_VALUE)*adc3_mean); // Create a string
jurica238814 4:f6f94ef38e6a 59 epd.writeString(buffer,25,110,0); // Write new data to the buffer
jurica238814 4:f6f94ef38e6a 60 epd.write(); // Write string to the EPD
jurica238814 4:f6f94ef38e6a 61
jurica238814 4:f6f94ef38e6a 62 adc1_mean = 0;
jurica238814 4:f6f94ef38e6a 63 adc2_mean = 0;
jurica238814 4:f6f94ef38e6a 64 adc3_mean = 0;
jurica238814 4:f6f94ef38e6a 65 }
jurica238814 0:dc96b5c8e3f6 66 }
jurica238814 0:dc96b5c8e3f6 67 }