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Access different power mode of BNO055 via nRF51-DK BLE
Dependencies: BLE_API BNO055 mbed nRF51822 nrf51_rtc
Fork of BLE_LoopbackUART_with_LSM6DS3 by
main.cpp
- Committer:
- 5hel2l2y
- Date:
- 2016-06-23
- Revision:
- 4:65f91237b687
- Parent:
- 3:c0d70871aa4d
- Child:
- 5:cd414aaa44f6
File content as of revision 4:65f91237b687:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "mbed.h" #include "ble/BLE.h" #include "ble/services/UARTService.h" #include "BNO055/BNO055.h" BNO055 imu(p30, p7); Serial pc(p9, p11); #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. */ #if NEED_CONSOLE_OUTPUT #define DEBUG(...) { pc.printf(__VA_ARGS__); } #else #define DEBUG(...) /* nothing */ #endif /* #if NEED_CONSOLE_OUTPUT */ BLEDevice ble; // Status lights DigitalOut ledAlive(LED1); DigitalOut ledIntrG(LED3); // Interrupt pin connection InterruptIn intrGX(p14); //INT (Gyro & Accel Interrupt) UARTService *uartServicePtr; void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) { DEBUG("Disconnected!\n\r"); DEBUG("Restarting the advertising process\n\r"); ble.startAdvertising(); } void onDataWritten(const GattWriteCallbackParams *params) { if ((uartServicePtr != NULL) && (params->handle == uartServicePtr->getTXCharacteristicHandle())) { uint16_t bytesRead = params->len; uint8_t value = *(params->data); DEBUG("received %u bytes\n\r", bytesRead); DEBUG("recevied %d data\n\r", value); imu.reset(); // Set power mode, POWER_MODE_NORMAL(default), POWER_MODE_LOWPOWER, or POWER_MODE_SUSPEND(sleep) // By default, I2C will pull high when bus is free(pg90 of datasheet) switch(value) { case 49: DEBUG("Off power\n\r"); imu.setpowermode(POWER_MODE_SUSPEND); break; case 50: DEBUG("Low power\n\r"); imu.setpowermode(POWER_MODE_LOWPOWER); break; case 51: DEBUG("No high power available for this sensor\n\r"); imu.setpowermode(POWER_MODE_NORMAL); break; default: DEBUG("Default power\n\r"); imu.setpowermode(POWER_MODE_NORMAL); break; } if (imu.check()) { pc.printf("BNO055 WHO_AM_I's returned: 0x%X\r\n", imu.ID.id); pc.printf("Should be 0xA0\r\n"); imu.initIntr(); } ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), params->data, bytesRead); } } void periodicCallback(void) { ledAlive = !ledAlive; } // Interrupt signal void flip(DigitalOut led) { led = !led; } void flip4() { // pc.printf(" ++++ G/X Triggered!! ++++ \n\r"); flip(ledIntrG); imu.resetIntr(); } int main(void) { // turn all LED off ledAlive = 1; ledIntrG = 1; Ticker ticker; ticker.attach(periodicCallback, 1); DEBUG("Initialising the nRF51822\n\r"); pc.printf("PC: Initialising the nRF51822\n\r"); ble.init(); ble.onDisconnection(disconnectionCallback); ble.onDataWritten(onDataWritten); /* setup advertising */ ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, (const uint8_t *)"BLE UART", sizeof("BLE UART") - 1); ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed)); ble.setAdvertisingInterval(1000); /* 1000ms; in multiples of 0.625ms. */ ble.startAdvertising(); UARTService uartService(ble); uartServicePtr = &uartService; // setup baud rate and reset sensor pc.baud(115200); // setup Interrupt mode intrGX.mode(PullUp); // status light will be lit based on sensor/data change intrGX.rise(&flip4); while (true) { ble.waitForEvent(); imu.setmode(OPERATION_MODE_AMG); imu.get_accel(); pc.printf("%2f,%2f,%2f\r\n", imu.accel.x, imu.accel.y, imu.accel.z); imu.get_gyro(); pc.printf("%2f,%2f,%2f\r\n", imu.gyro.x, imu.gyro.y, imu.gyro.z); imu.get_mag(); pc.printf("%2f,%2f,%2f\r\n", imu.mag.x, imu.mag.y, imu.mag.z); // Interrupt stats: This is only enabled in Low Power Mode // 0 - no interrupt // 64 - interrupt // 128 - sleep //imu.get_intr(); // pc.printf("intr: %d\r\n", imu.intr); // if(imu.intr == 64) { // pc.printf(" == interrupted == \r\n"); // imu.resetIntr(); // pc.printf("rx before: %d\r\n", imu.test3); // pc.printf("rx after: %d\r\n", imu.test4); // } wait(1.0); } }