BMP180 and BLE
Dependencies: BLE_API mbed nRF51822
Fork of WeatherStation by
main.cpp@6:25ed8e2df02e, 2018-01-10 (annotated)
- Committer:
- phivari
- Date:
- Wed Jan 10 16:42:44 2018 +0000
- Revision:
- 6:25ed8e2df02e
- Parent:
- 5:fe4888cc60cc
WeatherStation_BLE_BMP180
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
phivari | 6:25ed8e2df02e | 1 | #define I2C_SDA p29 |
phivari | 6:25ed8e2df02e | 2 | #define I2C_SCL p28 |
PostaL | 0:7f951f57dbd2 | 3 | |
PostaL | 0:7f951f57dbd2 | 4 | #include "mbed.h" |
PostaL | 0:7f951f57dbd2 | 5 | #include "BLE.h" |
PostaL | 2:654ee4b3950f | 6 | #include "WeatherService.h" |
PostaL | 3:b6d2c5195055 | 7 | #include "BMP180.h" |
PostaL | 4:fddb2d7c7c61 | 8 | |
PostaL | 5:fe4888cc60cc | 9 | float temperature1; |
PostaL | 4:fddb2d7c7c61 | 10 | float pressure; |
PostaL | 4:fddb2d7c7c61 | 11 | |
PostaL | 4:fddb2d7c7c61 | 12 | BLE ble; |
PostaL | 4:fddb2d7c7c61 | 13 | |
PostaL | 3:b6d2c5195055 | 14 | DigitalOut okLED(LED1); |
PostaL | 3:b6d2c5195055 | 15 | DigitalOut errLED(LED2); |
PostaL | 3:b6d2c5195055 | 16 | DigitalOut instrumentsPower(p30); |
PostaL | 0:7f951f57dbd2 | 17 | |
PostaL | 3:b6d2c5195055 | 18 | BMP180 bmp180; |
PostaL | 5:fe4888cc60cc | 19 | |
PostaL | 3:b6d2c5195055 | 20 | |
PostaL | 3:b6d2c5195055 | 21 | const static char DEVICE_NAME[] = "Weather Station"; |
PostaL | 3:b6d2c5195055 | 22 | |
PostaL | 3:b6d2c5195055 | 23 | static const uint16_t serviceList[] = { |
phivari | 6:25ed8e2df02e | 24 | GattService::UUID_ENVIRONMENTAL_SERVICE |
phivari | 6:25ed8e2df02e | 25 | }; |
PostaL | 3:b6d2c5195055 | 26 | |
PostaL | 5:fe4888cc60cc | 27 | static volatile bool triggerSensorPolling = false; |
PostaL | 0:7f951f57dbd2 | 28 | |
PostaL | 0:7f951f57dbd2 | 29 | void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) |
PostaL | 0:7f951f57dbd2 | 30 | { |
PostaL | 4:fddb2d7c7c61 | 31 | /* Restart Advertising on disconnection*/ |
PostaL | 0:7f951f57dbd2 | 32 | ble.gap().startAdvertising(); |
PostaL | 0:7f951f57dbd2 | 33 | } |
PostaL | 0:7f951f57dbd2 | 34 | |
PostaL | 1:f7fe82a00d4e | 35 | void blink(void) |
PostaL | 0:7f951f57dbd2 | 36 | { |
PostaL | 3:b6d2c5195055 | 37 | // statusLED = !statusLED; |
PostaL | 0:7f951f57dbd2 | 38 | triggerSensorPolling = true; |
PostaL | 0:7f951f57dbd2 | 39 | } |
PostaL | 0:7f951f57dbd2 | 40 | |
PostaL | 4:fddb2d7c7c61 | 41 | void updateFromBMP180() { |
PostaL | 4:fddb2d7c7c61 | 42 | uint8_t c = bmp180.readByte(BMP180_ADDRESS, BMP180_WHO_AM_I); |
PostaL | 4:fddb2d7c7c61 | 43 | |
PostaL | 4:fddb2d7c7c61 | 44 | printf("BMP-180 is 0x%x\n\r", c); |
PostaL | 4:fddb2d7c7c61 | 45 | printf("BMP-180 should be 0x55\n"); |
PostaL | 4:fddb2d7c7c61 | 46 | |
PostaL | 4:fddb2d7c7c61 | 47 | if(c == 0x55) { |
PostaL | 4:fddb2d7c7c61 | 48 | printf("BMP-180 online\n"); |
PostaL | 4:fddb2d7c7c61 | 49 | |
PostaL | 4:fddb2d7c7c61 | 50 | printf("Calibrating BMP-180..."); |
PostaL | 4:fddb2d7c7c61 | 51 | bmp180.BMP180Calibration(); |
PostaL | 4:fddb2d7c7c61 | 52 | printf("done\n"); |
PostaL | 4:fddb2d7c7c61 | 53 | } |
PostaL | 4:fddb2d7c7c61 | 54 | else |
PostaL | 4:fddb2d7c7c61 | 55 | { |
PostaL | 4:fddb2d7c7c61 | 56 | printf("BMP-180 unreachable\n"); |
PostaL | 4:fddb2d7c7c61 | 57 | return; |
PostaL | 4:fddb2d7c7c61 | 58 | } |
PostaL | 4:fddb2d7c7c61 | 59 | |
PostaL | 5:fe4888cc60cc | 60 | temperature1 = (float)bmp180.BMP180GetTemperature()/10.0f; |
PostaL | 4:fddb2d7c7c61 | 61 | pressure = (float)bmp180.BMP180GetPressure(); |
PostaL | 4:fddb2d7c7c61 | 62 | } |
PostaL | 4:fddb2d7c7c61 | 63 | |
PostaL | 4:fddb2d7c7c61 | 64 | |
PostaL | 0:7f951f57dbd2 | 65 | int main(void) |
PostaL | 0:7f951f57dbd2 | 66 | { |
PostaL | 4:fddb2d7c7c61 | 67 | printf("Start\n"); |
PostaL | 3:b6d2c5195055 | 68 | |
PostaL | 3:b6d2c5195055 | 69 | okLED = 1; |
PostaL | 3:b6d2c5195055 | 70 | errLED = 1; |
PostaL | 3:b6d2c5195055 | 71 | |
PostaL | 0:7f951f57dbd2 | 72 | Ticker ticker; |
PostaL | 4:fddb2d7c7c61 | 73 | ticker.attach(blink, 5); |
PostaL | 0:7f951f57dbd2 | 74 | |
PostaL | 0:7f951f57dbd2 | 75 | ble.init(); |
PostaL | 0:7f951f57dbd2 | 76 | ble.gap().onDisconnection(disconnectionCallback); |
PostaL | 0:7f951f57dbd2 | 77 | |
PostaL | 2:654ee4b3950f | 78 | /* Setup weather service. */ |
PostaL | 2:654ee4b3950f | 79 | WeatherService weatherService(ble); |
PostaL | 0:7f951f57dbd2 | 80 | |
PostaL | 0:7f951f57dbd2 | 81 | /* setup advertising */ |
PostaL | 0:7f951f57dbd2 | 82 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); |
PostaL | 3:b6d2c5195055 | 83 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)serviceList, sizeof(serviceList)); |
PostaL | 2:654ee4b3950f | 84 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::UNKNOWN); |
PostaL | 0:7f951f57dbd2 | 85 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); |
PostaL | 0:7f951f57dbd2 | 86 | ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); |
PostaL | 0:7f951f57dbd2 | 87 | ble.gap().setAdvertisingInterval(1000); /* 1000ms */ |
PostaL | 0:7f951f57dbd2 | 88 | ble.gap().startAdvertising(); |
PostaL | 0:7f951f57dbd2 | 89 | |
PostaL | 0:7f951f57dbd2 | 90 | while (true) { |
PostaL | 0:7f951f57dbd2 | 91 | if (triggerSensorPolling && ble.getGapState().connected) { |
PostaL | 3:b6d2c5195055 | 92 | okLED = 1; |
PostaL | 0:7f951f57dbd2 | 93 | triggerSensorPolling = false; |
PostaL | 0:7f951f57dbd2 | 94 | |
PostaL | 4:fddb2d7c7c61 | 95 | instrumentsPower = 1; |
PostaL | 4:fddb2d7c7c61 | 96 | wait(1); |
PostaL | 4:fddb2d7c7c61 | 97 | updateFromBMP180(); |
PostaL | 4:fddb2d7c7c61 | 98 | instrumentsPower = 0; |
PostaL | 4:fddb2d7c7c61 | 99 | |
phivari | 6:25ed8e2df02e | 100 | float temperature = (temperature1)/ 2; |
PostaL | 5:fe4888cc60cc | 101 | |
PostaL | 5:fe4888cc60cc | 102 | printf("Temp1: %.1f ºC \n", temperature1); |
PostaL | 5:fe4888cc60cc | 103 | printf("Temp Avg.: %.1f ºC \n", temperature); |
PostaL | 4:fddb2d7c7c61 | 104 | printf("Pressure: %.3f Pa \n", pressure); |
PostaL | 4:fddb2d7c7c61 | 105 | printf("---\n"); |
phivari | 6:25ed8e2df02e | 106 | |
PostaL | 3:b6d2c5195055 | 107 | weatherService.updateTemperature(temperature); |
PostaL | 3:b6d2c5195055 | 108 | weatherService.updatePressure(pressure); |
phivari | 6:25ed8e2df02e | 109 | |
PostaL | 0:7f951f57dbd2 | 110 | } else { |
PostaL | 0:7f951f57dbd2 | 111 | ble.waitForEvent(); |
PostaL | 0:7f951f57dbd2 | 112 | } |
PostaL | 0:7f951f57dbd2 | 113 | } |
PostaL | 0:7f951f57dbd2 | 114 | } |