DesignForAmputee hw 5 project
Dependencies: mbed BLE_API nRF51822
main.cpp
- Committer:
- jstroud
- Date:
- 2014-11-09
- Revision:
- 10:0193462ea6f1
- Parent:
- 8:114fea2afa09
- Child:
- 11:8500dadc8a7e
File content as of revision 10:0193462ea6f1:
#include "mbed.h" #include "BLEDevice.h" #include <string> #include "UARTService.h" #define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console; * it will have an impact on code-size and power consumption. */ Serial pc(USBTX, USBRX); #if NEED_CONSOLE_OUTPUT #define DEBUG(...) { pc.printf(__VA_ARGS__); } #else #define DEBUG(...) /* nothing */ #endif /* #if NEED_CONSOLE_OUTPUT */ BLEDevice ble; DigitalOut led1(LED1); DigitalOut led2(LED2); DigitalOut powerSwitch(P0_0); AnalogIn tempPin(P0_1); UARTService *uartServicePtr; void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) { DEBUG("Disconnected!\n\r"); DEBUG("Restarting the advertising process\n\r"); ble.startAdvertising(); } void onDataWritten(const GattCharacteristicWriteCBParams *params) { if ((uartServicePtr != NULL) && (params->charHandle == uartServicePtr->getTXCharacteristicHandle())) { float temp = tempPin.read(); // temperature voltage float tempC = ((temp*3.0)-0.5)*100.0; // conversion to celcius float tempF = (tempC*9.0/5.0)+32.0; // conversion to fahrenheit DEBUG("temp[V]:%f\ttemp[C]:%f\ttemp[F]:%f\n",temp,tempC,tempF); //DEBUG(params->data, "% uint16_t bytesRead = params->len; DEBUG("received %u bytes\n\r", bytesRead); DEBUG("first byte received: %u\n\r", params->data[0]); uint8_t on = '1'; uint8_t off = '0'; if (params->data[0] == on) { led2 = 1; powerSwitch = 1; } else if (params->data[0] == off) { led2 = 0; powerSwitch = 0; } //ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), params->data, bytesRead); char buffer[30]; sprintf(buffer,"%4.0f",tempF); char *data [] = {buffer}; ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (uint8_t *)data, sizeof(&data)); } } void periodicCallback(void) { led1 = !led1; } int main(void) { led1 = 1; led2 = 0; powerSwitch = 0; Ticker ticker; ticker.attach(periodicCallback, 1); DEBUG("Initialising the nRF51822\n\r"); ble.init(); ble.onDisconnection(disconnectionCallback); ble.onDataWritten(onDataWritten); // called when someone writes to me /* setup advertising */ ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, (const uint8_t *)"pgao", sizeof("pgao") - 1); ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed)); ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */ ble.startAdvertising(); UARTService uartService(ble); uartServicePtr = &uartService; while (true) { ble.waitForEvent(); } }