Ian Kilburn / Mbed 2 deprecated BLE_KL25_nRF8001

Adafruit Bluefruit with KL25Z

Dependencies:   BLE_nRF8001 mbed

Simple implementation of UART on FRDM KL25Z board with nRF8001 Adafruit breakout. Uses RedBearLabs Library and could be made to work with their BLE Shield.

UART Characteristics can be changed to work with either RedBearLabs BLE Controller app or using the Nordic settings the nRF apps or the Adafruit Bluefruit LE apps.

main.cpp@4:fb6008860882, 2017-03-10 (annotated)

Committer:
highroads
Date:
Fri Mar 10 13:20:55 2017 +0000
Revision:
4:fb6008860882
Parent:
3:b5dc2454dfc3
Child:
5:83be623f6ad4
uuids were wrong! Copied values from RedBearLab Library example. This should work with the BLE Controller App.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
highroads 0:3e21be32c98b 1 /*
highroads 0:3e21be32c98b 2
highroads 0:3e21be32c98b 3 Copyright (c) 2012-2014 RedBearLab
highroads 0:3e21be32c98b 4
highroads 0:3e21be32c98b 5 Permission is hereby granted, free of charge, to any person obtaining a copy of this software
highroads 0:3e21be32c98b 6 and associated documentation files (the "Software"), to deal in the Software without restriction,
highroads 0:3e21be32c98b 7 including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
highroads 0:3e21be32c98b 8 and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
highroads 0:3e21be32c98b 9 subject to the following conditions:
highroads 0:3e21be32c98b 10 The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
highroads 0:3e21be32c98b 11
highroads 0:3e21be32c98b 12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
highroads 0:3e21be32c98b 13 INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
highroads 0:3e21be32c98b 14 PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
highroads 0:3e21be32c98b 15 FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
highroads 0:3e21be32c98b 16 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
highroads 0:3e21be32c98b 17
highroads 0:3e21be32c98b 18 */
highroads 0:3e21be32c98b 19
highroads 0:3e21be32c98b 20 /*
highroads 0:3e21be32c98b 21 * The application works with the BLEController iOS/Android App.
highroads 0:3e21be32c98b 22 * Type something from the Terminal to send
highroads 0:3e21be32c98b 23 * to the BLEController App or vice verse.
highroads 0:3e21be32c98b 24 * Characteristics received from App will print on Terminal.
highroads 0:3e21be32c98b 25 */
highroads 0:3e21be32c98b 26
highroads 0:3e21be32c98b 27 // Import libraries
highroads 0:3e21be32c98b 28 #include "Arduino.h"
highroads 0:3e21be32c98b 29 #include "BLEPeripheral.h"
highroads 0:3e21be32c98b 30
highroads 0:3e21be32c98b 31 Serial serial(USBTX, USBRX);
highroads 0:3e21be32c98b 32
highroads 0:3e21be32c98b 33 // The SPI construct, REQN and RDYN IO construct should be modified manually
highroads 0:3e21be32c98b 34 // It depend on the board you are using and the REQN&RDYN configuration on BLE Shield
highroads 0:3e21be32c98b 35 // config for KL25Z
highroads 3:b5dc2454dfc3 36 // VIN to 5V on KL25
highroads 3:b5dc2454dfc3 37 // GND to GND on KL25
highroads 0:3e21be32c98b 38 SPI spi(PTD2, PTD3, PTD1); // MOSI , MISO , SCLK
highroads 0:3e21be32c98b 39 DigitalInOut BLE_RDY(PTD5); //
highroads 0:3e21be32c98b 40 DigitalInOut BLE_REQ(PTD0); //
highroads 1:b394935d1db1 41 DigitalInOut BLE_RESET(PTA13);
highroads 0:3e21be32c98b 42
highroads 0:3e21be32c98b 43 unsigned char txbuf[16] = {0};
highroads 0:3e21be32c98b 44 unsigned char txlen = 0;
highroads 0:3e21be32c98b 45
highroads 4:fb6008860882 46 //*----- BLE Utility -------------------------------------------------------------------------*/
highroads 0:3e21be32c98b 47 // create peripheral instance, see pinouts above
highroads 4:fb6008860882 48 BLEPeripheral blePeripheral = BLEPeripheral(&BLE_REQ, &BLE_RDY, NULL);
highroads 4:fb6008860882 49
highroads 0:3e21be32c98b 50 // create service
highroads 3:b5dc2454dfc3 51 BLEService uartService = BLEService("713d0000503e4c75ba943148f18d941e");
highroads 4:fb6008860882 52
highroads 0:3e21be32c98b 53 // create characteristic
highroads 4:fb6008860882 54 BLECharacteristic txCharacteristic = BLECharacteristic("713d0002503e4c75ba943148f18d941e", BLENotify, 20);
highroads 4:fb6008860882 55 BLECharacteristic rxCharacteristic = BLECharacteristic("713d0003503e4c75ba943148f18d941e", BLEWriteWithoutResponse, 20);
highroads 0:3e21be32c98b 56 /*--------------------------------------------------------------------------------------------*/
highroads 0:3e21be32c98b 57
highroads 0:3e21be32c98b 58 unsigned int interval = 0;
highroads 0:3e21be32c98b 59 unsigned char count_on = 0;
highroads 0:3e21be32c98b 60
highroads 0:3e21be32c98b 61 int main()
highroads 0:3e21be32c98b 62 {
highroads 0:3e21be32c98b 63 serial.baud(115200);
highroads 0:3e21be32c98b 64 serial.printf("Serial begin!\r\n");
highroads 0:3e21be32c98b 65
highroads 0:3e21be32c98b 66 /*----- BLE Utility ---------------------------------------------*/
highroads 0:3e21be32c98b 67 // set advertised local name and service UUID
highroads 0:3e21be32c98b 68 blePeripheral.setLocalName("BLE Shield");
highroads 0:3e21be32c98b 69
highroads 0:3e21be32c98b 70 blePeripheral.setAdvertisedServiceUuid(uartService.uuid());
highroads 0:3e21be32c98b 71
highroads 0:3e21be32c98b 72 // add service and characteristic
highroads 0:3e21be32c98b 73 blePeripheral.addAttribute(uartService);
highroads 0:3e21be32c98b 74 blePeripheral.addAttribute(rxCharacteristic);
highroads 0:3e21be32c98b 75 blePeripheral.addAttribute(txCharacteristic);
highroads 0:3e21be32c98b 76
highroads 0:3e21be32c98b 77 // begin initialization
highroads 0:3e21be32c98b 78 blePeripheral.begin();
highroads 0:3e21be32c98b 79 /*---------------------------------------------------------------*/
highroads 0:3e21be32c98b 80
highroads 0:3e21be32c98b 81 serial.printf("BLE UART Peripheral begin!\r\n");
highroads 0:3e21be32c98b 82
highroads 0:3e21be32c98b 83 while(1)
highroads 0:3e21be32c98b 84 {
highroads 0:3e21be32c98b 85 BLECentral central = blePeripheral.central();
highroads 0:3e21be32c98b 86
highroads 0:3e21be32c98b 87 if (central)
highroads 0:3e21be32c98b 88 {
highroads 0:3e21be32c98b 89 // central connected to peripheral
highroads 0:3e21be32c98b 90 serial.printf("Connected to central\r\n");
highroads 0:3e21be32c98b 91
highroads 0:3e21be32c98b 92 while (central.connected())
highroads 0:3e21be32c98b 93 {
highroads 0:3e21be32c98b 94 // central still connected to peripheral
highroads 0:3e21be32c98b 95 if (rxCharacteristic.written())
highroads 0:3e21be32c98b 96 {
highroads 0:3e21be32c98b 97 unsigned char rxlen = rxCharacteristic.valueLength();
highroads 0:3e21be32c98b 98 const unsigned char *val = rxCharacteristic.value();
highroads 0:3e21be32c98b 99 serial.printf("didCharacteristicWritten, Length: %d\r\n", rxlen);
highroads 0:3e21be32c98b 100 unsigned char i = 0;
highroads 0:3e21be32c98b 101 while(i<rxlen)
highroads 0:3e21be32c98b 102 {
highroads 0:3e21be32c98b 103 serial.printf("%d, ",val[i++]);
highroads 0:3e21be32c98b 104 }
highroads 0:3e21be32c98b 105 serial.printf("\r\n");
highroads 0:3e21be32c98b 106 }
highroads 0:3e21be32c98b 107
highroads 0:3e21be32c98b 108 if(serial.readable()) // Do not spend much time on doing other things when serial available! Otherwisee, data will lose.
highroads 0:3e21be32c98b 109 {
highroads 0:3e21be32c98b 110 if(!count_on)
highroads 0:3e21be32c98b 111 {
highroads 0:3e21be32c98b 112 count_on = 1;
highroads 0:3e21be32c98b 113 }
highroads 0:3e21be32c98b 114 interval = 0;
highroads 0:3e21be32c98b 115 txbuf[txlen] = serial.getc();
highroads 0:3e21be32c98b 116 txlen++;
highroads 0:3e21be32c98b 117 }
highroads 0:3e21be32c98b 118
highroads 0:3e21be32c98b 119 if(count_on) // Count the interval after receiving a new char from terminate
highroads 0:3e21be32c98b 120 {
highroads 0:3e21be32c98b 121 interval++;
highroads 0:3e21be32c98b 122 }
highroads 0:3e21be32c98b 123
highroads 0:3e21be32c98b 124 if(interval == 10) // If there is no char available last the interval, send the received chars to central.
highroads 0:3e21be32c98b 125 {
highroads 0:3e21be32c98b 126 interval = 0;
highroads 0:3e21be32c98b 127 count_on = 0;
highroads 0:3e21be32c98b 128
highroads 0:3e21be32c98b 129 serial.printf("Received from terminal: %d bytes\r\n", txlen);
highroads 0:3e21be32c98b 130 txCharacteristic.setValue((const unsigned char *)txbuf, txlen);
highroads 0:3e21be32c98b 131 txlen = 0;
highroads 0:3e21be32c98b 132 }
highroads 0:3e21be32c98b 133 }
highroads 0:3e21be32c98b 134
highroads 0:3e21be32c98b 135 // central disconnected
highroads 0:3e21be32c98b 136 serial.printf("Disconnected from central\r\n");
highroads 0:3e21be32c98b 137 }
highroads 0:3e21be32c98b 138 }
highroads 0:3e21be32c98b 139 }