Communication between BLE nano to raspberry pi
Dependencies: BLE_API mbed nRF51822
Revision 0:048c1ce80632, committed 2017-04-13
- Comitter:
- nkosarek
- Date:
- Thu Apr 13 23:24:25 2017 +0000
- Commit message:
- working writes to pi
Changed in this revision
diff -r 000000000000 -r 048c1ce80632 BLE_API.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BLE_API.lib Thu Apr 13 23:24:25 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/teams/Bluetooth-Low-Energy/code/BLE_API/#65474dc93927
diff -r 000000000000 -r 048c1ce80632 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu Apr 13 23:24:25 2017 +0000 @@ -0,0 +1,282 @@ +/* + +Copyright (c) 2012-2014 RedBearLab + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software +and associated documentation files (the "Software"), to deal in the Software without restriction, +including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, +and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE +FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +*/ + +#include "mbed.h" +#include "ble/BLE.h" + +#define BLE_UUID_TXRX_SERVICE 0x0000 /**< The UUID of the Nordic UART Service. */ +#define BLE_UUID_TX_CHARACTERISTIC 0x0002 /**< The UUID of the TX Characteristic. */ +#define BLE_UUIDS_RX_CHARACTERISTIC 0x0003 /**< The UUID of the RX Characteristic. */ +#define BLE_UUID_PI_ALERT_WRITE_NORESP 0x1802 /**< The UUID of the Write Without Response Alert level pi characteristic. */ + +#define TXRX_BUF_LEN 20 + +//#define DIGITAL_OUT_PIN P0_9 //TXD +#define DIGITAL_IN_PIN P0_10 //CTS +//#define PWM_PIN P0_11 //RXD +//#define SERVO_PIN P0_8 //RTS +#define ANALOG_IN_PIN P0_4 //P04 + +BLE ble; +uint8_t value = 0; + +//DigitalOut LED_SET(DIGITAL_OUT_PIN); +DigitalIn BUTTON(DIGITAL_IN_PIN); +//PwmOut PWM(PWM_PIN); +AnalogIn ANALOG(ANALOG_IN_PIN); +//Servo MYSERVO(SERVO_PIN); + +Serial pc(USBTX, USBRX); +bool connected = false; + +static uint8_t analog_enabled = 0; +static uint8_t old_state = 0; + +// The Nordic UART Service +static const uint8_t uart_base_uuid[] = {0x71, 0x3D, 0, 0, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E}; +static const uint8_t uart_tx_uuid[] = {0x71, 0x3D, 0, 3, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E}; +static const uint8_t uart_rx_uuid[] = {0x71, 0x3D, 0, 2, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E}; +static const uint8_t uart_base_uuid_rev[] = {0x1E, 0x94, 0x8D, 0xF1, 0x48, 0x31, 0x94, 0xBA, 0x75, 0x4C, 0x3E, 0x50, 0, 0, 0x3D, 0x71}; + + +uint8_t txPayload[TXRX_BUF_LEN] = {0,}; +uint8_t rxPayload[TXRX_BUF_LEN] = {0,}; + +//static uint8_t rx_buf[TXRX_BUF_LEN]; +//static uint8_t rx_len=0; + + +GattCharacteristic txCharacteristic (uart_tx_uuid, txPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE); + +GattCharacteristic rxCharacteristic (uart_rx_uuid, rxPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); + +GattCharacteristic *uartChars[] = {&txCharacteristic, &rxCharacteristic}; + +GattService uartService(uart_base_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic *)); + + + +/* +void WrittenHandler(const GattWriteCallbackParams *Handler) +{ + uint8_t buf[TXRX_BUF_LEN]; + uint16_t bytesRead; + + if (Handler->handle == txCharacteristic.getValueAttribute().getHandle()) + { + ble.readCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), buf, &bytesRead); + memset(txPayload, 0, TXRX_BUF_LEN); + memcpy(txPayload, buf, TXRX_BUF_LEN); + + //for(index=0; index<bytesRead; index++) + //pc.putc(buf[index]); + + if(buf[0] == 0x01) + { + if(buf[1] == 0x01) + LED_SET = 1; + else + LED_SET = 0; + } + else if(buf[0] == 0xA0) + { + if(buf[1] == 0x01) + analog_enabled = 1; + else + analog_enabled = 0; + } + else if(buf[0] == 0x02) + { + float value = (float)buf[1]/255; + PWM = value; + } + else if(buf[0] == 0x03) + { + MYSERVO.write(buf[1]); + } + else if(buf[0] == 0x04) + { + analog_enabled = 0; + PWM = 0; + MYSERVO.write(0); + LED_SET = 0; + old_state = 0; + } + + } +} +*/ +/* +void uartCB(void) +{ + while(pc.readable()) + { + rx_buf[rx_len++] = pc.getc(); + if(rx_len>=20 || rx_buf[rx_len-1]=='\0' || rx_buf[rx_len-1]=='\n') + { + ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), rx_buf, rx_len); + pc.printf("RecHandler \r\n"); + pc.printf("Length: "); + pc.putc(rx_len); + pc.printf("\r\n"); + rx_len = 0; + break; + } + } +} +*/ +void m_status_check_handle(void) +{ + uint8_t buf[3]; + if (analog_enabled) // if analog reading enabled + { + // Read and send out + float s = ANALOG; + uint16_t value = s*1024; + buf[0] = (0x0B); + buf[1] = (value >> 8); + buf[2] = (value); + ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), buf, 3); + } + + // If digital in changes, report the state + if (BUTTON != old_state) + { + old_state = BUTTON; + + if (BUTTON == 1) + { + buf[0] = (0x0A); + buf[1] = (0x01); + buf[2] = (0x00); + ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), buf, 3); + } + else + { + buf[0] = (0x0A); + buf[1] = (0x00); + buf[2] = (0x00); + ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), buf, 3); + } + } +} + +void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) +{ + connected = false; + pc.printf("Disconnected \r\n"); + pc.printf("Restart advertising \r\n"); + ble.gap().startAdvertising(); +} + +void connectionCallback(const Gap::ConnectionCallbackParams_t *params) +{ + connected = true; + pc.printf("Connected\r\n"); + Gap::Handle_t connHandle = params->handle; + GattClient& client = ble.gattClient(); + while( connected ) { + ble.waitForEvent(); + value++; + if( value > 100 ) { + value = 0; + } + pc.printf("Writing %d to GATT Client\r\n", value); + + ble_error_t err = client.write((GattClient::WriteOp_t)0x2, + connHandle, + 0x15, + sizeof(uint8_t), + &value); + if( err == 0 ) { + pc.printf("SUCCESS\r\n"); + } else { + pc.printf("FAILURE: %d\r\n", err); + } + } +} + +int main(void) +{ + Ticker ticker; + ticker.attach_us(m_status_check_handle, 200000); + + ble.init(); + ble.onDisconnection(disconnectionCallback); + //ble.onDataWritten(WrittenHandler); + + pc.baud(9600); + pc.printf("BLE_Custom Init \r\n"); + + //pc.attach( uartCB , pc.RxIrq); + + // setup advertising + ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); + ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); + ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, + (const uint8_t *)"LUMBERJACK_NANO", sizeof("LUMBERJACK_NANO") - 1); + ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, + (const uint8_t *)uart_base_uuid_rev, sizeof(uart_base_uuid)); + // 100ms; in multiples of 0.625ms. + ble.setAdvertisingInterval(160); + + ble.addService(uartService); + + ble.onDisconnection(disconnectionCallback); + ble.onConnection(connectionCallback); + + ble.startAdvertising(); + //GattServer& server = ble.gattServer(); + //pc.printf("Advertising Start \r\n"); + while(1) + { + ble.waitForEvent(); + } +} + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
diff -r 000000000000 -r 048c1ce80632 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Apr 13 23:24:25 2017 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/mbed_official/code/mbed/builds/856d2700e60b \ No newline at end of file
diff -r 000000000000 -r 048c1ce80632 nRF51822.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nRF51822.lib Thu Apr 13 23:24:25 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/teams/Nordic-Semiconductor/code/nRF51822/#c90ae1400bf2