This program is given as a sample exercise. It has all the functionality to be used on a BLE Nano device and to connect to SimpleChat application for Android/ iOS from RebBearLab. The aim of the exercise is to read a voltage and then to convert as good as possible the appropriate temperature in Celsius degrees. AI5 pin is considered for reading the voltage for the termistor. The ADC of AI5 is called every second. The function to be updated : update_measurements() from main.cpp file.

Dependencies:   BLE_API mbed nRF51822

Fork of nRF51822_DataLogger_with_Chat by Valentin Tanasa

Committer:
tanasaro10
Date:
Sat Oct 08 10:30:15 2016 +0000
Revision:
12:7772974713ac
Parent:
11:baafa4f7a15e
Version ready for use to exercise.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tanasaro10 9:303d3628986a 1 #include "ble_flash.h"
tanasaro10 9:303d3628986a 2 #include "mbed.h"
tanasaro10 9:303d3628986a 3
tanasaro10 9:303d3628986a 4 #define MAXBUFFER 99u //(((BLE_FLASH_PAGE_SIZE - 4 - sizeof(myData_t))/sizeof(myDataL_t))
tanasaro10 9:303d3628986a 5 #define MAX_WORD_PAGE_DATA 254u // to be computed as round_next_int(MAXBUFFER*sizeof(myDataL_t)+sizeof(myData_t))
tanasaro10 9:303d3628986a 6
tanasaro10 9:303d3628986a 7 #define MAX_PAGE_NUM (NRF_FICR->CODESIZE - 1) // 255
tanasaro10 12:7772974713ac 8 #define MIN_PAGE_NUM 180u
tanasaro10 8:f28ad4600b0f 9
tanasaro10 8:f28ad4600b0f 10
tanasaro10 8:f28ad4600b0f 11 typedef struct{
tanasaro10 9:303d3628986a 12 uint8_t year; // 20_XX, 2016 => 16;
tanasaro10 8:f28ad4600b0f 13 uint8_t month; // 1..12
tanasaro10 9:303d3628986a 14 uint8_t day; // 1..31
tanasaro10 11:baafa4f7a15e 15 uint8_t hours;
tanasaro10 11:baafa4f7a15e 16 uint8_t minutes;
tanasaro10 11:baafa4f7a15e 17 uint8_t seconds;
tanasaro10 11:baafa4f7a15e 18 } mdate_time_t;
tanasaro10 8:f28ad4600b0f 19
tanasaro10 8:f28ad4600b0f 20
tanasaro10 8:f28ad4600b0f 21 typedef struct{
tanasaro10 11:baafa4f7a15e 22 mdate_time_t currentDateTime;
tanasaro10 11:baafa4f7a15e 23 mdate_time_t newDateTime;
tanasaro10 11:baafa4f7a15e 24 bool updateDateTime; // true if currentTime needs to be updated with newTime;
tanasaro10 11:baafa4f7a15e 25 } mdatetime_manager_t;
tanasaro10 11:baafa4f7a15e 26
tanasaro10 8:f28ad4600b0f 27
tanasaro10 9:303d3628986a 28 typedef enum {
tanasaro10 9:303d3628986a 29 eStartAdvertising =0,
tanasaro10 9:303d3628986a 30 eStopAdvertising =1,
tanasaro10 9:303d3628986a 31 eDisconnect =2
tanasaro10 9:303d3628986a 32 } connection_update_t;
tanasaro10 8:f28ad4600b0f 33
tanasaro10 8:f28ad4600b0f 34 typedef struct {
tanasaro10 12:7772974713ac 35 int16_t x;
tanasaro10 12:7772974713ac 36 int16_t y;
tanasaro10 12:7772974713ac 37 int16_t z;
tanasaro10 9:303d3628986a 38 uint16_t temp;
tanasaro10 9:303d3628986a 39 } myPayload_t;
tanasaro10 9:303d3628986a 40
tanasaro10 9:303d3628986a 41
tanasaro10 9:303d3628986a 42 typedef struct {
tanasaro10 9:303d3628986a 43 myPayload_t data;
tanasaro10 11:baafa4f7a15e 44 uint8_t seconds;
tanasaro10 11:baafa4f7a15e 45 uint8_t minutes;
tanasaro10 9:303d3628986a 46 } myDataL_t;
tanasaro10 9:303d3628986a 47
tanasaro10 9:303d3628986a 48 typedef struct {
tanasaro10 11:baafa4f7a15e 49 mdate_time_t datetime; // 6 bytes length
tanasaro10 11:baafa4f7a15e 50 myPayload_t data; // 8 bytes lenth
tanasaro10 8:f28ad4600b0f 51 } myData_t;
tanasaro10 8:f28ad4600b0f 52
tanasaro10 9:303d3628986a 53 typedef struct {
tanasaro10 9:303d3628986a 54 myData_t startData;
tanasaro10 9:303d3628986a 55 myDataL_t myData[MAXBUFFER];
tanasaro10 9:303d3628986a 56 } myDataLog_t;
tanasaro10 9:303d3628986a 57
tanasaro10 9:303d3628986a 58 typedef struct {
tanasaro10 9:303d3628986a 59 myData_t startData;
tanasaro10 9:303d3628986a 60 myDataL_t myData;
tanasaro10 9:303d3628986a 61 } myDataLogShort_t;
tanasaro10 9:303d3628986a 62
tanasaro10 9:303d3628986a 63 /* Return current page to be written in Flash */
tanasaro10 9:303d3628986a 64 uint8_t flash_currPage();
tanasaro10 9:303d3628986a 65
tanasaro10 9:303d3628986a 66 /* Return next page to be written in Flash */
tanasaro10 9:303d3628986a 67 uint8_t flash_go_nextPage();
tanasaro10 9:303d3628986a 68
tanasaro10 9:303d3628986a 69 /* Return page-N (thas has been written in Flash) */
tanasaro10 9:303d3628986a 70 uint8_t flash_prev_N_Page(uint8_t nr_of_pages);
tanasaro10 8:f28ad4600b0f 71
tanasaro10 9:303d3628986a 72 /*search the latest page written and extract the page_nr, date, and time*/
tanasaro10 11:baafa4f7a15e 73 void search_latest_in_flash(mdate_time_t * outDateTime);
tanasaro10 9:303d3628986a 74
tanasaro10 9:303d3628986a 75 /* Update current date and time with tseconds and also if there is a new date/time given */
tanasaro10 11:baafa4f7a15e 76 void update_time(mdatetime_manager_t* myDateTimeVar, uint16_t tseconds);
tanasaro10 9:303d3628986a 77
tanasaro10 9:303d3628986a 78 /* Update buzzer with period in ms =0..9 and duty cycle = 0..9*/
tanasaro10 9:303d3628986a 79 int buzz_int(PwmOut* buzzer, uint8_t period, uint8_t duty_cycle);
tanasaro10 9:303d3628986a 80
tanasaro10 9:303d3628986a 81 /* Print on serial some error from main app*/
tanasaro10 9:303d3628986a 82 void assert_error_app(bool condition, Serial *pc, uint16_t error, uint16_t line, const char* file);