Shahariar Hossain / Mbed 2 deprecated uBit_BLE_UART_Voltmeter

BLE VMM Console

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_UARTConsole by Bluetooth Low Energy

main.cpp@10:053397a8dc40, 2018-09-06 (annotated)

Committer:
suntopbd
Date:
Thu Sep 06 22:56:26 2018 +0000
Revision:
10:053397a8dc40
Parent:
9:5f0732aa3008 
Bluetooth Vmm for Car

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 0:2130d7f559dc 1 /* mbed Microcontroller Library
rgrover1 0:2130d7f559dc 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 0:2130d7f559dc 3 *
rgrover1 0:2130d7f559dc 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 0:2130d7f559dc 5 * you may not use this file except in compliance with the License.
rgrover1 0:2130d7f559dc 6 * You may obtain a copy of the License at
rgrover1 0:2130d7f559dc 7 *
rgrover1 0:2130d7f559dc 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 0:2130d7f559dc 9 *
rgrover1 0:2130d7f559dc 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 0:2130d7f559dc 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 0:2130d7f559dc 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 0:2130d7f559dc 13 * See the License for the specific language governing permissions and
rgrover1 0:2130d7f559dc 14 * limitations under the License.
rgrover1 0:2130d7f559dc 15 */
suntopbd 10:053397a8dc40 16 //////////////////////////////////////////////////////////
suntopbd 10:053397a8dc40 17 ///////////////////////NOTE ///////////////////////////////
suntopbd 10:053397a8dc40 18 // This program uses BBC microbit as a NRF51822 board //
suntopbd 10:053397a8dc40 19 // with limited onboard functionality, mainly focused //
suntopbd 10:053397a8dc40 20 // BLE-uart/ADC/DIO/PWM capability, see pin maping below //
suntopbd 10:053397a8dc40 21 ///////////////////////////////////////////////////////////
suntopbd 10:053397a8dc40 22 ///////////////////////////////////////////////////////////
suntopbd 10:053397a8dc40 23
rgrover1 5:2607923acfa1 24 #include <string.h>
rgrover1 0:2130d7f559dc 25 #include "mbed.h"
rgrover1 8:f9bf6d403cde 26 #include "BLE.h"
suntopbd 10:053397a8dc40 27 #include "stdio.h"
rgrover1 0:2130d7f559dc 28 #include "UARTService.h"
rgrover1 0:2130d7f559dc 29
rgrover1 0:2130d7f559dc 30
suntopbd 10:053397a8dc40 31 #define NEED_CONSOLE_OUTPUT 1 // if BLE printf messages needed on the remote console (PC/phone/host);
rgrover1 0:2130d7f559dc 32 #if NEED_CONSOLE_OUTPUT
suntopbd 10:053397a8dc40 33 #define BLEprintf(STR) { if (uart) uart->write(STR, strlen(STR)); }
rgrover1 0:2130d7f559dc 34 #else
suntopbd 10:053397a8dc40 35 #define BLEprintf(...)
suntopbd 10:053397a8dc40 36 #endif
suntopbd 10:053397a8dc40 37
suntopbd 10:053397a8dc40 38 ///////////////// pin table /////////////////////////
suntopbd 10:053397a8dc40 39 /////////////////////////////////////////////////////
suntopbd 10:053397a8dc40 40 // ubit.pin nrf51822pin functions note //
suntopbd 10:053397a8dc40 41 /////////////////////////////////////////////////////
suntopbd 10:053397a8dc40 42 // P2 P0_1 ADC/PWM/DIO 2 //
suntopbd 10:053397a8dc40 43 // P1 P0_2 ADC/PWM/DIO 1 //
suntopbd 10:053397a8dc40 44 // P0 P0_3 ADC/PWM/DIO 0 //
suntopbd 10:053397a8dc40 45 // P16 P_16 DIO //
suntopbd 10:053397a8dc40 46 // P14 P0_25 SPI MIS/DIO //
suntopbd 10:053397a8dc40 47 // P5 P_17 Button A/DI pullup //
suntopbd 10:053397a8dc40 48 // P11 P_26 Button B/DI pullup //
suntopbd 10:053397a8dc40 49
suntopbd 10:053397a8dc40 50 /////////////////////////////////////////////////////
suntopbd 10:053397a8dc40 51 ///////////////// not mapped yet ////////////////////
suntopbd 10:053397a8dc40 52 // P20 I2C SDA/DIO pullup //
suntopbd 10:053397a8dc40 53 // P19 I2C SCL/DIO pullup //
suntopbd 10:053397a8dc40 54 // P15 SPI MOS/DIO //
suntopbd 10:053397a8dc40 55 // P13 SPI SCK/DIO //
suntopbd 10:053397a8dc40 56 // P16 //
suntopbd 10:053397a8dc40 57 // P8 //
suntopbd 10:053397a8dc40 58
suntopbd 10:053397a8dc40 59 /////////////////////////////////////////////////////
suntopbd 10:053397a8dc40 60 // LED Matrix pins are not mapped //
suntopbd 10:053397a8dc40 61 /////////////////////////////////////////////////////
suntopbd 10:053397a8dc40 62
rgrover1 0:2130d7f559dc 63
rgrover1 0:2130d7f559dc 64 BLEDevice ble;
rgrover1 5:2607923acfa1 65 UARTService *uart;
suntopbd 10:053397a8dc40 66 AnalogIn ain(P0_3);
suntopbd 10:053397a8dc40 67 DigitalOut dout(P0_16);
suntopbd 10:053397a8dc40 68 DigitalIn din(P0_17);
suntopbd 10:053397a8dc40 69
suntopbd 10:053397a8dc40 70 int dVal, dec, i,j;
suntopbd 10:053397a8dc40 71 float val,exBatt,f;
suntopbd 10:053397a8dc40 72 char buffer[10];
suntopbd 10:053397a8dc40 73 /////////////////// functions ///////////////////////
suntopbd 10:053397a8dc40 74
suntopbd 10:053397a8dc40 75
rgrover1 0:2130d7f559dc 76
rgrover1 9:5f0732aa3008 77 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
rgrover1 0:2130d7f559dc 78 {
rgrover1 0:2130d7f559dc 79 ble.startAdvertising();
rgrover1 0:2130d7f559dc 80 }
rgrover1 0:2130d7f559dc 81
rgrover1 0:2130d7f559dc 82 void periodicCallback(void)
rgrover1 0:2130d7f559dc 83 {
suntopbd 10:053397a8dc40 84 BLEprintf("\n");
suntopbd 10:053397a8dc40 85 BLEprintf("Battery Volt: ");
suntopbd 10:053397a8dc40 86 BLEprintf(buffer);
suntopbd 10:053397a8dc40 87 // BLEprintf("\r\n");
suntopbd 10:053397a8dc40 88
rgrover1 0:2130d7f559dc 89 }
suntopbd 10:053397a8dc40 90 ///////////////////////////////////////////////
suntopbd 10:053397a8dc40 91 ///////////////// MAIN FUNC ///////////////////
suntopbd 10:053397a8dc40 92 ///////////////////////////////////////////////
suntopbd 10:053397a8dc40 93
rgrover1 0:2130d7f559dc 94 int main(void)
rgrover1 0:2130d7f559dc 95 {
rgrover1 0:2130d7f559dc 96 Ticker ticker;
suntopbd 10:053397a8dc40 97 ticker.attach(periodicCallback, 2);
rgrover1 0:2130d7f559dc 98 ble.init();
suntopbd 10:053397a8dc40 99 ble.onDisconnection(disconnectionCallback);
rgrover1 5:2607923acfa1 100 uart = new UARTService(ble);
rgrover1 0:2130d7f559dc 101
rgrover1 0:2130d7f559dc 102 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
rgrover1 0:2130d7f559dc 103 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1 0:2130d7f559dc 104 ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
suntopbd 10:053397a8dc40 105 (const uint8_t *)"uBit BLE", sizeof("uBit BLE") - 1);
rgrover1 0:2130d7f559dc 106 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
rgrover1 0:2130d7f559dc 107 (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed));
rgrover1 0:2130d7f559dc 108
suntopbd 10:053397a8dc40 109 ble.setAdvertisingInterval(160); // 100ms; in multiples of 0.625ms. //
rgrover1 0:2130d7f559dc 110 ble.startAdvertising();
rgrover1 0:2130d7f559dc 111
suntopbd 10:053397a8dc40 112 while (true)
suntopbd 10:053397a8dc40 113 {
rgrover1 0:2130d7f559dc 114 ble.waitForEvent();
suntopbd 10:053397a8dc40 115 dout = din.read();
suntopbd 10:053397a8dc40 116 val = ain.read_u16();
suntopbd 10:053397a8dc40 117
suntopbd 10:053397a8dc40 118
suntopbd 10:053397a8dc40 119 // 100k+22k voltage divider
suntopbd 10:053397a8dc40 120 // 3.3 Vcc board voltage
suntopbd 10:053397a8dc40 121
suntopbd 10:053397a8dc40 122 exBatt = (122/22)*3.6*val/1023.0; // ext batt volt
suntopbd 10:053397a8dc40 123 //exBatt =12.37;
suntopbd 10:053397a8dc40 124
suntopbd 10:053397a8dc40 125 dVal = exBatt;
suntopbd 10:053397a8dc40 126
suntopbd 10:053397a8dc40 127
suntopbd 10:053397a8dc40 128 dec = (int)(exBatt * 100) % 100;
suntopbd 10:053397a8dc40 129 if(exBatt>1 && exBatt<10){i=0;}
suntopbd 10:053397a8dc40 130 if(exBatt>=10 && exBatt<100){i=1;}
suntopbd 10:053397a8dc40 131 j=i;
suntopbd 10:053397a8dc40 132 memset(buffer, 0, 10);
suntopbd 10:053397a8dc40 133
suntopbd 10:053397a8dc40 134 while (dVal > 0)
suntopbd 10:053397a8dc40 135 {
suntopbd 10:053397a8dc40 136 buffer[i] = (dVal % 10) + '0';
suntopbd 10:053397a8dc40 137 dVal /= 10;
suntopbd 10:053397a8dc40 138 i--;
suntopbd 10:053397a8dc40 139 }
suntopbd 10:053397a8dc40 140 buffer[j+1] = '.';
suntopbd 10:053397a8dc40 141 buffer[j+2] = (dec / 10) + '0';
suntopbd 10:053397a8dc40 142 buffer[j+3] = (dec % 10) + '0';
suntopbd 10:053397a8dc40 143
suntopbd 10:053397a8dc40 144 }
suntopbd 10:053397a8dc40 145 ///////////// end of while(1) //////////////
rgrover1 0:2130d7f559dc 146 }
suntopbd 10:053397a8dc40 147 ///////////// end of main /////////////////