Joe Kamiya
hrm1017 with gy-801 temp
Dependencies: BLE_API TMP102 mbed nRF51822
Fork of
BLE_HTM_HRM1017
by 
Switch Science
main.cpp@13:96b5ba19637d, 2016-12-14 (annotated)
- Committer:
- s1211
- Date:
- Wed Dec 14 05:54:29 2016 +0000
- Revision:
- 13:96b5ba19637d
- Parent:
- 12:6d007a5c006b
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| todotani | 0:5e4210d108ac | 1 | #include "mbed.h" |
| todotani | 0:5e4210d108ac | 2 | #include "TMP102.h" |
| ytsuboi | 8:f753b4b022a8 | 3 | #include "BLE.h" |
| todotani | 0:5e4210d108ac | 4 | |
| todotani | 0:5e4210d108ac | 5 | #define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console; |
| todotani | 0:5e4210d108ac | 6 | * it will have an impact on code-size and power consumption. */ |
| todotani | 0:5e4210d108ac | 7 | |
| todotani | 0:5e4210d108ac | 8 | #if NEED_CONSOLE_OUTPUT |
| todotani | 0:5e4210d108ac | 9 | Serial pc(USBTX, USBRX); |
| todotani | 0:5e4210d108ac | 10 | #define DEBUG(...) { pc.printf(__VA_ARGS__); } |
| todotani | 0:5e4210d108ac | 11 | #else |
| todotani | 0:5e4210d108ac | 12 | #define DEBUG(...) /* nothing */ |
| todotani | 0:5e4210d108ac | 13 | #endif /* #if NEED_CONSOLE_OUTPUT */ |
| todotani | 0:5e4210d108ac | 14 | |
| todotani | 0:5e4210d108ac | 15 | const static char DEVICE_NAME[] = "HRM1017_HTM"; |
| todotani | 2:daf2344afc28 | 16 | static volatile bool triggerSensorPolling = false; |
| todotani | 0:5e4210d108ac | 17 | |
| todotani | 0:5e4210d108ac | 18 | BLEDevice ble; |
| s1211 | 12:6d007a5c006b | 19 | TMP102 healthThemometer(I2C_SDA0, I2C_SCL0, 0x77); /* The TMP102 connected to our board */ |
| ytsuboi | 6:c3d9dbadd654 | 20 | //TMP102 healthThemometer(I2C_SDA1, I2C_SCL1, 0x90); /* The TMP102 connected to our board */ |
| todotani | 0:5e4210d108ac | 21 | |
| todotani | 0:5e4210d108ac | 22 | /* LEDs for indication: */ |
| todotani | 0:5e4210d108ac | 23 | DigitalOut oneSecondLed(LED1); /* LED1 is toggled every second. */ |
| todotani | 0:5e4210d108ac | 24 | DigitalOut advertisingStateLed(LED2); /* LED2 is on when we are advertising, otherwise off. */ |
| todotani | 0:5e4210d108ac | 25 | |
| todotani | 0:5e4210d108ac | 26 | |
| todotani | 0:5e4210d108ac | 27 | /* Health Thermometer Service */ |
| todotani | 0:5e4210d108ac | 28 | uint8_t thermTempPayload[5] = { 0, 0, 0, 0, 0 }; |
| todotani | 0:5e4210d108ac | 29 | |
| todotani | 0:5e4210d108ac | 30 | GattCharacteristic tempChar (GattCharacteristic::UUID_TEMPERATURE_MEASUREMENT_CHAR, |
| todotani | 0:5e4210d108ac | 31 | thermTempPayload, 5, 5, |
| todotani | 0:5e4210d108ac | 32 | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE); |
| todotani | 0:5e4210d108ac | 33 | /* Battery Level Service */ |
| todotani | 0:5e4210d108ac | 34 | uint8_t batt = 100; /* Battery level */ |
| todotani | 0:5e4210d108ac | 35 | uint8_t read_batt = 0; /* Variable to hold battery level reads */ |
| todotani | 0:5e4210d108ac | 36 | GattCharacteristic battLevel ( GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, |
| todotani | 0:5e4210d108ac | 37 | (uint8_t *)batt, 1, 1, |
| todotani | 0:5e4210d108ac | 38 | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); |
| todotani | 0:5e4210d108ac | 39 | GattCharacteristic *htmChars[] = {&tempChar, }; |
| todotani | 0:5e4210d108ac | 40 | GattCharacteristic *battChars[] = {&battLevel, }; |
| todotani | 0:5e4210d108ac | 41 | GattService htmService(GattService::UUID_HEALTH_THERMOMETER_SERVICE, htmChars, |
| todotani | 0:5e4210d108ac | 42 | sizeof(htmChars) / sizeof(GattCharacteristic *)); |
| todotani | 0:5e4210d108ac | 43 | GattService battService(GattService::UUID_BATTERY_SERVICE, battChars, |
| todotani | 0:5e4210d108ac | 44 | sizeof(battChars) / sizeof(GattCharacteristic *)); |
| todotani | 0:5e4210d108ac | 45 | |
| todotani | 0:5e4210d108ac | 46 | uint16_t uuid16_list[] = {GattService::UUID_HEALTH_THERMOMETER_SERVICE, |
| todotani | 0:5e4210d108ac | 47 | GattService::UUID_BATTERY_SERVICE}; |
| todotani | 0:5e4210d108ac | 48 | |
| todotani | 0:5e4210d108ac | 49 | uint32_t quick_ieee11073_from_float(float temperature); |
| todotani | 0:5e4210d108ac | 50 | void updateServiceValues(void); |
| todotani | 0:5e4210d108ac | 51 | |
| todotani | 0:5e4210d108ac | 52 | static Gap::ConnectionParams_t connectionParams; |
| todotani | 0:5e4210d108ac | 53 | |
| mbed_tw_hoehoe | 9:554af3c63d0c | 54 | void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) // Mod |
| todotani | 0:5e4210d108ac | 55 | { |
| todotani | 0:5e4210d108ac | 56 | advertisingStateLed = 1; |
| todotani | 0:5e4210d108ac | 57 | |
| mbed_tw_hoehoe | 9:554af3c63d0c | 58 | DEBUG("Disconnected handle %u, reason %u\r\n", params->handle, params->reason); |
| ytsuboi | 8:f753b4b022a8 | 59 | DEBUG("Restarting the advertising process\r\n"); |
| ytsuboi | 8:f753b4b022a8 | 60 | ble.gap().startAdvertising(); |
| todotani | 0:5e4210d108ac | 61 | } |
| todotani | 0:5e4210d108ac | 62 | |
| ytsuboi | 8:f753b4b022a8 | 63 | void onConnectionCallback(const Gap::ConnectionCallbackParams_t *params) //Mod |
| todotani | 0:5e4210d108ac | 64 | { |
| todotani | 0:5e4210d108ac | 65 | advertisingStateLed = 0; |
| todotani | 0:5e4210d108ac | 66 | |
| ytsuboi | 8:f753b4b022a8 | 67 | DEBUG("connected. Got handle %u\r\n", params->handle); |
| todotani | 0:5e4210d108ac | 68 | |
| todotani | 0:5e4210d108ac | 69 | connectionParams.slaveLatency = 1; |
| ytsuboi | 8:f753b4b022a8 | 70 | if (ble.gap().updateConnectionParams(params->handle, &connectionParams) != BLE_ERROR_NONE) { |
| todotani | 0:5e4210d108ac | 71 | DEBUG("failed to update connection paramter\r\n"); |
| todotani | 0:5e4210d108ac | 72 | } |
| todotani | 0:5e4210d108ac | 73 | } |
| todotani | 0:5e4210d108ac | 74 | |
| todotani | 2:daf2344afc28 | 75 | void periodicCallback(void) |
| todotani | 2:daf2344afc28 | 76 | { |
| todotani | 2:daf2344afc28 | 77 | oneSecondLed = !oneSecondLed; /* Do blinky on LED1 while we're waiting for BLE events */ |
| todotani | 2:daf2344afc28 | 78 | |
| todotani | 2:daf2344afc28 | 79 | /* Note that the periodicCallback() executes in interrupt context, so it is safer to do |
| todotani | 2:daf2344afc28 | 80 | * heavy-weight sensor polling from the main thread. */ |
| todotani | 2:daf2344afc28 | 81 | triggerSensorPolling = true; |
| todotani | 2:daf2344afc28 | 82 | } |
| todotani | 2:daf2344afc28 | 83 | |
| todotani | 0:5e4210d108ac | 84 | /**************************************************************************/ |
| todotani | 0:5e4210d108ac | 85 | /*! |
| todotani | 0:5e4210d108ac | 86 | @brief Program entry point |
| todotani | 0:5e4210d108ac | 87 | */ |
| todotani | 0:5e4210d108ac | 88 | /**************************************************************************/ |
| todotani | 0:5e4210d108ac | 89 | int main(void) |
| todotani | 0:5e4210d108ac | 90 | { |
| todotani | 0:5e4210d108ac | 91 | |
| todotani | 0:5e4210d108ac | 92 | /* Setup blinky led */ |
| todotani | 0:5e4210d108ac | 93 | oneSecondLed = 1; |
| todotani | 2:daf2344afc28 | 94 | Ticker ticker; |
| todotani | 2:daf2344afc28 | 95 | ticker.attach(periodicCallback, 1); |
| todotani | 2:daf2344afc28 | 96 | |
| ytsuboi | 8:f753b4b022a8 | 97 | DEBUG("Initialising the nRF51822\r\n"); |
| todotani | 0:5e4210d108ac | 98 | ble.init(); |
| ytsuboi | 8:f753b4b022a8 | 99 | DEBUG("Init done\r\n"); |
| ytsuboi | 8:f753b4b022a8 | 100 | ble.gap().onDisconnection(disconnectionCallback); |
| ytsuboi | 8:f753b4b022a8 | 101 | ble.gap().onConnection(onConnectionCallback); |
| todotani | 0:5e4210d108ac | 102 | |
| ytsuboi | 8:f753b4b022a8 | 103 | ble.gap().getPreferredConnectionParams(&connectionParams); |
| todotani | 0:5e4210d108ac | 104 | |
| todotani | 0:5e4210d108ac | 105 | /* setup advertising */ |
| ytsuboi | 8:f753b4b022a8 | 106 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); |
| ytsuboi | 8:f753b4b022a8 | 107 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t*)uuid16_list, sizeof(uuid16_list)); |
| ytsuboi | 8:f753b4b022a8 | 108 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_THERMOMETER); |
| ytsuboi | 8:f753b4b022a8 | 109 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); |
| ytsuboi | 8:f753b4b022a8 | 110 | ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); |
| ytsuboi | 8:f753b4b022a8 | 111 | ble.gap().setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */ |
| ytsuboi | 8:f753b4b022a8 | 112 | ble.gap().startAdvertising(); |
| todotani | 0:5e4210d108ac | 113 | advertisingStateLed = 1; |
| ytsuboi | 8:f753b4b022a8 | 114 | DEBUG("Start Advertising\r\n"); |
| todotani | 0:5e4210d108ac | 115 | |
| ytsuboi | 8:f753b4b022a8 | 116 | ble.gattServer().addService(htmService); |
| ytsuboi | 8:f753b4b022a8 | 117 | ble.gattServer().addService(battService); |
| ytsuboi | 8:f753b4b022a8 | 118 | DEBUG("Add Service\r\n"); |
| todotani | 0:5e4210d108ac | 119 | |
| todotani | 2:daf2344afc28 | 120 | while (true) { |
| todotani | 2:daf2344afc28 | 121 | if (triggerSensorPolling) { |
| todotani | 2:daf2344afc28 | 122 | triggerSensorPolling = false; |
| todotani | 2:daf2344afc28 | 123 | updateServiceValues(); |
| todotani | 2:daf2344afc28 | 124 | } else { |
| todotani | 2:daf2344afc28 | 125 | ble.waitForEvent(); |
| todotani | 2:daf2344afc28 | 126 | } |
| todotani | 0:5e4210d108ac | 127 | } |
| todotani | 0:5e4210d108ac | 128 | } |
| todotani | 0:5e4210d108ac | 129 | |
| todotani | 0:5e4210d108ac | 130 | /**************************************************************************/ |
| todotani | 0:5e4210d108ac | 131 | /*! |
| todotani | 0:5e4210d108ac | 132 | @brief Ticker callback to switch advertisingStateLed state |
| todotani | 0:5e4210d108ac | 133 | */ |
| todotani | 0:5e4210d108ac | 134 | /**************************************************************************/ |
| todotani | 0:5e4210d108ac | 135 | void updateServiceValues(void) |
| todotani | 0:5e4210d108ac | 136 | { |
| todotani | 0:5e4210d108ac | 137 | /* Decrement the battery level. */ |
| todotani | 0:5e4210d108ac | 138 | batt <=50 ? batt=100 : batt--; |
| todotani | 0:5e4210d108ac | 139 | |
| todotani | 0:5e4210d108ac | 140 | /* Update the temperature. Note that we need to convert to an ieee11073 format float. */ |
| todotani | 0:5e4210d108ac | 141 | float temperature = healthThemometer.read(); |
| ytsuboi | 8:f753b4b022a8 | 142 | DEBUG("temp:%f\r\n", temperature); |
| todotani | 0:5e4210d108ac | 143 | uint32_t temp_ieee11073 = quick_ieee11073_from_float(temperature); |
| todotani | 0:5e4210d108ac | 144 | memcpy(thermTempPayload+1, &temp_ieee11073, 4); |
| ytsuboi | 8:f753b4b022a8 | 145 | ble.gattServer().write(tempChar.getValueAttribute().getHandle(), thermTempPayload, sizeof(thermTempPayload)); //Mod |
| ytsuboi | 8:f753b4b022a8 | 146 | ble.gattServer().write(battLevel.getValueAttribute().getHandle(), (uint8_t *)&batt, sizeof(batt)); //Mod |
| todotani | 0:5e4210d108ac | 147 | } |
| todotani | 0:5e4210d108ac | 148 | |
| todotani | 0:5e4210d108ac | 149 | /** |
| todotani | 0:5e4210d108ac | 150 | * @brief A very quick conversion between a float temperature and 11073-20601 FLOAT-Type. |
| todotani | 0:5e4210d108ac | 151 | * @param temperature The temperature as a float. |
| todotani | 0:5e4210d108ac | 152 | * @return The temperature in 11073-20601 FLOAT-Type format. |
| todotani | 0:5e4210d108ac | 153 | */ |
| todotani | 0:5e4210d108ac | 154 | uint32_t quick_ieee11073_from_float(float temperature) |
| todotani | 0:5e4210d108ac | 155 | { |
| todotani | 0:5e4210d108ac | 156 | uint8_t exponent = 0xFF; //exponent is -1 |
| todotani | 0:5e4210d108ac | 157 | uint32_t mantissa = (uint32_t)(temperature*10); |
| todotani | 0:5e4210d108ac | 158 | |
| todotani | 0:5e4210d108ac | 159 | return ( ((uint32_t)exponent) << 24) | mantissa; |
| todotani | 0:5e4210d108ac | 160 | } |