Janek Mann / openwear-lifelogger-example

Openwear Life logger example

Dependencies:   BLE_API MPL6_1 TCS3472_I2C mbed-src-openwear nRF51822_openwear

Fork of BLE_LoopbackUART by Bluetooth Low Energy

main.cpp@6:68a02e91836e, 2014-09-04 (annotated)

Committer:
janekm
Date:
Thu Sep 04 21:19:18 2014 +0000
Revision:
6:68a02e91836e
Parent:
5:4bc41267a03a
Child:
7:9a474d182e4b
about to start implementing AHRS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 0:e910d9bb040f 1 /* mbed Microcontroller Library
yihui 0:e910d9bb040f 2 * Copyright (c) 2006-2013 ARM Limited
yihui 0:e910d9bb040f 3 *
yihui 0:e910d9bb040f 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 0:e910d9bb040f 5 * you may not use this file except in compliance with the License.
yihui 0:e910d9bb040f 6 * You may obtain a copy of the License at
yihui 0:e910d9bb040f 7 *
yihui 0:e910d9bb040f 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 0:e910d9bb040f 9 *
yihui 0:e910d9bb040f 10 * Unless required by applicable law or agreed to in writing, software
yihui 0:e910d9bb040f 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 0:e910d9bb040f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 0:e910d9bb040f 13 * See the License for the specific language governing permissions and
yihui 0:e910d9bb040f 14 * limitations under the License.
yihui 0:e910d9bb040f 15 */
yihui 0:e910d9bb040f 16
yihui 0:e910d9bb040f 17 #include "mbed.h"
Rohit Grover 2:e060367b9024 18 #include "BLEDevice.h"
janekm 6:68a02e91836e 19 #include "TCS3472_I2C.h"
yihui 0:e910d9bb040f 20
janekm 6:68a02e91836e 21 I2C i2c(p7, p6);
janekm 6:68a02e91836e 22 TCS3472_I2C rgb_sensor( &i2c );
yihui 0:e910d9bb040f 23
Rohit Grover 2:e060367b9024 24 BLEDevice ble;
janekm 6:68a02e91836e 25 DigitalOut led1(p27);
janekm 6:68a02e91836e 26 PwmOut led2(p28);
janekm 6:68a02e91836e 27 DigitalOut LDOOn(p5);
janekm 6:68a02e91836e 28 DigitalOut SoundOn(p2);
janekm 6:68a02e91836e 29 AnalogIn SoundIn(p1);
janekm 6:68a02e91836e 30
janekm 6:68a02e91836e 31 static volatile bool triggerSensorPolling = false;
yihui 0:e910d9bb040f 32
yihui 0:e910d9bb040f 33 // The Nordic UART Service
janekm 6:68a02e91836e 34 static const uint8_t uart_service_uuid[] = {0x6e, 0x40, 0x00, 0x01, 0xb5, 0xa3, 0xf3, 0x93, 0xe0, 0xa9, 0xe5,0x0e, 0x24, 0xdc, 0xca, 0x9e};
Rohit Grover 2:e060367b9024 35 static const uint8_t uart_tx_uuid[] = {0x6e, 0x40, 0x00, 0x02, 0xb5, 0xa3, 0xf3, 0x93, 0xe0, 0xa9, 0xe5,0x0e, 0x24, 0xdc, 0xca, 0x9e};
Rohit Grover 2:e060367b9024 36 static const uint8_t uart_rx_uuid[] = {0x6e, 0x40, 0x00, 0x03, 0xb5, 0xa3, 0xf3, 0x93, 0xe0, 0xa9, 0xe5,0x0e, 0x24, 0xdc, 0xca, 0x9e};
janekm 6:68a02e91836e 37 static const uint8_t uart_service_uuid_rev[] = {0x9e, 0xca, 0xdc, 0x24, 0x0e, 0xe5, 0xa9, 0xe0, 0x93, 0xf3, 0xa3, 0xb5, 0x01, 0x00, 0x40, 0x6e};
janekm 6:68a02e91836e 38 static const uint16_t uuid16_list[] = {GattService::UUID_DEVICE_INFORMATION_SERVICE};
rgrover1 5:4bc41267a03a 39
rgrover1 5:4bc41267a03a 40 static const uint8_t SIZEOF_TX_RX_BUFFER = 128;
rgrover1 5:4bc41267a03a 41 uint8_t rxPayload[SIZEOF_TX_RX_BUFFER] = {0,};
rgrover1 5:4bc41267a03a 42 uint8_t txPayload[SIZEOF_TX_RX_BUFFER] = {0,};
janekm 6:68a02e91836e 43
janekm 6:68a02e91836e 44 uint8_t hardwareRevision[] = "0.1";
rgrover1 5:4bc41267a03a 45 GattCharacteristic rxCharacteristic (uart_tx_uuid, rxPayload, 1, SIZEOF_TX_RX_BUFFER,
Rohit Grover 2:e060367b9024 46 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE);
rgrover1 5:4bc41267a03a 47 GattCharacteristic txCharacteristic (uart_rx_uuid, txPayload, 1, SIZEOF_TX_RX_BUFFER, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
rgrover1 5:4bc41267a03a 48 GattCharacteristic *uartChars[] = {&rxCharacteristic, &txCharacteristic};
janekm 6:68a02e91836e 49 GattService uartService(uart_service_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic *));
janekm 6:68a02e91836e 50
janekm 6:68a02e91836e 51 GattCharacteristic hardwareRevCharacteristic(GattCharacteristic::UUID_HARDWARE_REVISION_STRING_CHAR, hardwareRevision, sizeof(hardwareRevision), sizeof(hardwareRevision), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
janekm 6:68a02e91836e 52 GattCharacteristic *deviceInfoChars[] = {&hardwareRevCharacteristic};
janekm 6:68a02e91836e 53 GattService deviceInfoService(GattService::UUID_DEVICE_INFORMATION_SERVICE, deviceInfoChars, sizeof(deviceInfoChars) / sizeof(GattCharacteristic *));
yihui 0:e910d9bb040f 54
rgrover1 5:4bc41267a03a 55 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
yihui 0:e910d9bb040f 56 {
Rohit Grover 2:e060367b9024 57 ble.startAdvertising();
Rohit Grover 2:e060367b9024 58 }
yihui 0:e910d9bb040f 59
rgrover1 5:4bc41267a03a 60 void onDataWritten(uint16_t charHandle, const GattCharacteristicWriteCBParams *params)
yihui 0:e910d9bb040f 61 {
rgrover1 5:4bc41267a03a 62 if (charHandle == rxCharacteristic.getValueAttribute().getHandle()) {
rgrover1 5:4bc41267a03a 63 uint16_t bytesRead = params->len;
rgrover1 5:4bc41267a03a 64 if (bytesRead < sizeof(rxPayload)) {
rgrover1 5:4bc41267a03a 65 memcpy(rxPayload, params->data, bytesRead);
rgrover1 5:4bc41267a03a 66 rxPayload[bytesRead] = 0;
rgrover1 5:4bc41267a03a 67 }
rgrover1 5:4bc41267a03a 68 ble.updateCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), rxPayload, bytesRead);
yihui 0:e910d9bb040f 69 }
Rohit Grover 2:e060367b9024 70 }
yihui 0:e910d9bb040f 71
Rohit Grover 2:e060367b9024 72 void periodicCallback(void)
Rohit Grover 2:e060367b9024 73 {
janekm 6:68a02e91836e 74 triggerSensorPolling = true;
Rohit Grover 2:e060367b9024 75 }
yihui 0:e910d9bb040f 76
yihui 0:e910d9bb040f 77 int main(void)
yihui 0:e910d9bb040f 78 {
Rohit Grover 2:e060367b9024 79 led1 = 1;
janekm 6:68a02e91836e 80 led2 = 1.0;
janekm 6:68a02e91836e 81 LDOOn = 1;
janekm 6:68a02e91836e 82 SoundOn = 1;
Rohit Grover 2:e060367b9024 83 Ticker ticker;
janekm 6:68a02e91836e 84 i2c.frequency(400000);
janekm 6:68a02e91836e 85 ticker.attach(periodicCallback, 4);
yihui 0:e910d9bb040f 86
Rohit Grover 2:e060367b9024 87 ble.init();
janekm 6:68a02e91836e 88 rgb_sensor.enablePowerAndRGBC();
janekm 6:68a02e91836e 89 rgb_sensor.setIntegrationTime( 100 );
janekm 6:68a02e91836e 90 rgb_sensor.setWaitTime(900);
janekm 6:68a02e91836e 91 //rgb_sensor.enableWait();
Rohit Grover 2:e060367b9024 92 ble.onDisconnection(disconnectionCallback);
Rohit Grover 2:e060367b9024 93 ble.onDataWritten(onDataWritten);
yihui 0:e910d9bb040f 94
Rohit Grover 2:e060367b9024 95 /* setup advertising */
Rohit Grover 2:e060367b9024 96 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
Rohit Grover 2:e060367b9024 97 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
Rohit Grover 2:e060367b9024 98 ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
Rohit Grover 2:e060367b9024 99 (const uint8_t *)"BLE UART", sizeof("BLE UART") - 1);
Rohit Grover 2:e060367b9024 100 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
janekm 6:68a02e91836e 101 (const uint8_t *)uart_service_uuid_rev, sizeof(uart_service_uuid_rev));
janekm 6:68a02e91836e 102 ble.accumulateScanResponse(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
janekm 6:68a02e91836e 103 //ble.accumulateAdvertisingPayload(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
yihui 0:e910d9bb040f 104
Rohit Grover 2:e060367b9024 105 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
janekm 6:68a02e91836e 106 ble.addService(uartService);
janekm 6:68a02e91836e 107 ble.addService(deviceInfoService);
Rohit Grover 2:e060367b9024 108 ble.startAdvertising();
yihui 0:e910d9bb040f 109
yihui 0:e910d9bb040f 110
Rohit Grover 2:e060367b9024 111 while (true) {
janekm 6:68a02e91836e 112 if (triggerSensorPolling) {
janekm 6:68a02e91836e 113 triggerSensorPolling = false;
janekm 6:68a02e91836e 114 //led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
janekm 6:68a02e91836e 115 char reading[20];
janekm 6:68a02e91836e 116 int rgb_readings[4];
janekm 6:68a02e91836e 117 int len;
janekm 6:68a02e91836e 118 rgb_sensor.getAllColors( rgb_readings );
janekm 6:68a02e91836e 119 rgb_sensor.clearInterrupt();
janekm 6:68a02e91836e 120 char whoami;
janekm 6:68a02e91836e 121 float max = 0.0;
janekm 6:68a02e91836e 122 float min = 1.0;
janekm 6:68a02e91836e 123 float current = 0.0;
janekm 6:68a02e91836e 124 for (int i = 0; i < 20; i++) {
janekm 6:68a02e91836e 125 current = SoundIn;
janekm 6:68a02e91836e 126 if (current > max) max = current;
janekm 6:68a02e91836e 127 if (current < min) min = current;
janekm 6:68a02e91836e 128 }
janekm 6:68a02e91836e 129 len = sprintf((char *)reading, "%d,%d,%d,%d", rgb_readings[0], rgb_readings[1], rgb_readings[2], rgb_readings[3]);
janekm 6:68a02e91836e 130 ble.updateCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(),(uint8_t *) reading, len);
janekm 6:68a02e91836e 131 len = sprintf((char *)reading, "%1.4f", (max - min) * 10.0);
janekm 6:68a02e91836e 132 ble.updateCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(),(uint8_t *) reading, len);
janekm 6:68a02e91836e 133 whoami = readByte(MPU9250_ADDRESS, WHO_AM_I_MPU9250);
janekm 6:68a02e91836e 134 len = sprintf((char *)reading, "%d", whoami);
janekm 6:68a02e91836e 135 ble.updateCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(),(uint8_t *) reading, len);
janekm 6:68a02e91836e 136
janekm 6:68a02e91836e 137 } else {
janekm 6:68a02e91836e 138 //ble.waitForEvent();
janekm 6:68a02e91836e 139 float max = 0.0;
janekm 6:68a02e91836e 140 float min = 1.0;
janekm 6:68a02e91836e 141 float current = 0.0;
janekm 6:68a02e91836e 142 for (int i = 0; i < 100; i++) {
janekm 6:68a02e91836e 143 current = SoundIn;
janekm 6:68a02e91836e 144 if (current > max) max = current;
janekm 6:68a02e91836e 145 if (current < min) min = current;
janekm 6:68a02e91836e 146 }
janekm 6:68a02e91836e 147 if ((max - min) > 0.005) {
janekm 6:68a02e91836e 148 led2 = 1.0 - (max - min)*5.0;
janekm 6:68a02e91836e 149 if ((max - min) > 0.06) {
janekm 6:68a02e91836e 150 led1 = 0;
janekm 6:68a02e91836e 151 } else {
janekm 6:68a02e91836e 152 led1 = 1;
janekm 6:68a02e91836e 153 }
janekm 6:68a02e91836e 154 } else {
janekm 6:68a02e91836e 155 led2 = 1.0;
janekm 6:68a02e91836e 156 led1 = 1;
janekm 6:68a02e91836e 157 }
janekm 6:68a02e91836e 158 }
yihui 0:e910d9bb040f 159 }
yihui 0:e910d9bb040f 160 }