A simple example for analog input and EPD usage.
Dependencies: GDEP015OC1 acn_nrf52_saadc aconno_bsp
Fork of acd52832_Car_battery_ch by
main.cpp
- Committer:
- jurica238814
- Date:
- 2017-06-29
- Revision:
- 4:f6f94ef38e6a
- Parent:
- 3:4fb622e929d0
- Child:
- 5:6566725c8835
File content as of revision 4:f6f94ef38e6a:
/* Copyright (c) 2017 Aconno. All Rights Reserved. * * Licensees are granted free, non-transferable use of the information. NO * WARRANTY of ANY KIND is provided. This heading must NOT be removed from * the file. */ #include "mbed.h" #include "acd52832_bsp.h" #include "GDEP015OC1.h" #define delay_time (1000) #define ADC_MAX_VALUE (4092) #define ADC_REF_VOLTAGE (3.6) #define VOLTAGE_DIVIDER_RATION (130.0/30) #define CURRENT_FACTOR (36.0) SPI spi(PIN_EPD_MOSI, NC, PIN_EPD_SCK, NC); GDEP015OC1 epd = GDEP015OC1(spi, PIN_EPD_CS, PIN_EPD_DC, PIN_EPD_RST, PIN_EPD_BUSY); AnalogIn battery (p28); AnalogIn usb1 (p29); AnalogIn usb2 (p30); int main(){ char buffer[25] = {0}; float adc1_mean=0, adc2_mean=0, adc3_mean=0; int count = 0; wait_ms(100); NRF_SAADC->RESOLUTION = 0x00000002; // Set 12b resolution while(true){ adc1_mean += battery.read_u16(); adc2_mean += usb1.read_u16(); adc3_mean += usb2.read_u16(); count ++; if (count == 10){ adc1_mean /= 10; adc2_mean /= 10; adc3_mean /= 10; count = 0; epd.empty(); epd.writeFull(); sprintf(buffer, "Battery: %5.5fV", adc1_mean*(ADC_REF_VOLTAGE/ADC_MAX_VALUE)*VOLTAGE_DIVIDER_RATION); // Create a string epd.writeString(buffer,25,70,0); // Write new data to the buffer epd.write(); // Write string to the EPD sprintf(buffer, "USB1: %5.5fA", (CURRENT_FACTOR/ADC_MAX_VALUE)*adc2_mean); // Create a string epd.writeString(buffer,25,90,0); // Write new data to the buffer epd.write(); // Write string to the EPD sprintf(buffer, "USB1: %5.5fA", (CURRENT_FACTOR/ADC_MAX_VALUE)*adc3_mean); // Create a string epd.writeString(buffer,25,110,0); // Write new data to the buffer epd.write(); // Write string to the EPD adc1_mean = 0; adc2_mean = 0; adc3_mean = 0; } } }