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/*********************************************************************
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This is an example for our nRF52 based Bluefruit LE modules |
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Pick one up today in the adafruit shop! |
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Adafruit invests time and resources providing this open source code, |
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please support Adafruit and open-source hardware by purchasing |
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products from Adafruit! |
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MIT license, check LICENSE for more information |
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All text above, and the splash screen below must be included in |
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any redistribution |
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*********************************************************************/ |
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#include <bluefruit.h> |
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// BLE Service
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BLEDis bledis; |
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BLEUart bleuart; |
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BLEBas blebas; |
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// Software Timer for blinking RED LED
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SoftwareTimer blinkTimer; |
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void setup() |
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{ |
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Serial.begin(115200); |
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Serial.println("Bluefruit52 BLEUART Example"); |
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Serial.println("---------------------------\n"); |
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// Initialize blinkTimer for 1000 ms and start it
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blinkTimer.begin(1000, blink_timer_callback); |
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blinkTimer.start(); |
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// Setup the BLE LED to be enabled on CONNECT
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// Note: This is actually the default behaviour, but provided
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// here in case you want to control this LED manually via PIN 19
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Bluefruit.autoConnLed(true); |
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// Config the peripheral connection with maximum bandwidth
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// more SRAM required by SoftDevice
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// Note: All config***() function must be called before begin()
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Bluefruit.configPrphBandwidth(BANDWIDTH_MAX); |
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Bluefruit.begin(); |
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// Set max power. Accepted values are: -40, -30, -20, -16, -12, -8, -4, 0, 4
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Bluefruit.setTxPower(4); |
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Bluefruit.setName("Bluefruit52"); |
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//Bluefruit.setName(getMcuUniqueID()); // useful testing with multiple central connections
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Bluefruit.setConnectCallback(connect_callback); |
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Bluefruit.setDisconnectCallback(disconnect_callback); |
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// Configure and Start Device Information Service
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bledis.setManufacturer("Adafruit Industries"); |
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bledis.setModel("Bluefruit Feather52"); |
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bledis.begin(); |
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// Configure and Start BLE Uart Service
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bleuart.begin(); |
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// Start BLE Battery Service
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blebas.begin(); |
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blebas.write(100); |
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// Set up and start advertising
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startAdv(); |
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Serial.println("Please use Adafruit's Bluefruit LE app to connect in UART mode"); |
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Serial.println("Once connected, enter character(s) that you wish to send"); |
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} |
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void startAdv(void) |
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{ |
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// Advertising packet
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Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE); |
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Bluefruit.Advertising.addTxPower(); |
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// Include bleuart 128-bit uuid
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Bluefruit.Advertising.addService(bleuart); |
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// Secondary Scan Response packet (optional)
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// Since there is no room for 'Name' in Advertising packet
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Bluefruit.ScanResponse.addName(); |
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/* Start Advertising
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* - Enable auto advertising if disconnected |
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* - Interval: fast mode = 20 ms, slow mode = 152.5 ms |
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* - Timeout for fast mode is 30 seconds |
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* - Start(timeout) with timeout = 0 will advertise forever (until connected) |
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*
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* For recommended advertising interval |
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* https://developer.apple.com/library/content/qa/qa1931/_index.html
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*/ |
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Bluefruit.Advertising.restartOnDisconnect(true); |
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Bluefruit.Advertising.setInterval(32, 244); // in unit of 0.625 ms
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Bluefruit.Advertising.setFastTimeout(30); // number of seconds in fast mode
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Bluefruit.Advertising.start(0); // 0 = Don't stop advertising after n seconds
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} |
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void loop() |
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{ |
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// Forward data from HW Serial to BLEUART
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while (Serial.available()) |
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{ |
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// Delay to wait for enough input, since we have a limited transmission buffer
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delay(2); |
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uint8_t buf[64]; |
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int count = Serial.readBytes(buf, sizeof(buf)); |
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bleuart.write( buf, count ); |
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} |
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// Forward from BLEUART to HW Serial
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while ( bleuart.available() ) |
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{ |
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uint8_t ch; |
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ch = (uint8_t) bleuart.read(); |
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Serial.write(ch); |
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} |
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// Request CPU to enter low-power mode until an event/interrupt occurs
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waitForEvent(); |
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} |
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void connect_callback(uint16_t conn_handle) |
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{ |
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char central_name[32] = { 0 }; |
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Bluefruit.Gap.getPeerName(conn_handle, central_name, sizeof(central_name)); |
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Serial.print("Connected to "); |
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Serial.println(central_name); |
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} |
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void disconnect_callback(uint16_t conn_handle, uint8_t reason) |
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{ |
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(void) conn_handle; |
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(void) reason; |
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Serial.println(); |
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Serial.println("Disconnected"); |
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} |
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/**
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* Software Timer callback is invoked via a built-in FreeRTOS thread with |
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* minimal stack size. Therefore it should be as simple as possible. If |
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* a periodically heavy task is needed, please use Scheduler.startLoop() to |
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* create a dedicated task for it. |
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*
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* More information http://www.freertos.org/RTOS-software-timer.html
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*/ |
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void blink_timer_callback(TimerHandle_t xTimerID) |
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{ |
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(void) xTimerID; |
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digitalToggle(LED_RED); |
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} |
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/**
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* RTOS Idle callback is automatically invoked by FreeRTOS |
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* when there are no active threads. E.g when loop() calls delay() and |
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* there is no bluetooth or hw event. This is the ideal place to handle |
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* background data. |
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*
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* NOTE: FreeRTOS is configured as tickless idle mode. After this callback |
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* is executed, if there is time, freeRTOS kernel will go into low power mode. |
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* Therefore waitForEvent() should not be called in this callback. |
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* http://www.freertos.org/low-power-tickless-rtos.html
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*
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* WARNING: This function MUST NOT call any blocking FreeRTOS API
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* such as delay(), xSemaphoreTake() etc ... for more information |
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* http://www.freertos.org/a00016.html
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*/ |
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void rtos_idle_callback(void) |
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{ |
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// Don't call any other FreeRTOS blocking API()
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// Perform background task(s) here
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} |
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@ -0,0 +1,62 @@ |
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/*********************************************************************
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This is an example for our nRF52 based Bluefruit LE modules |
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Pick one up today in the adafruit shop! |
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Adafruit invests time and resources providing this open source code, |
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please support Adafruit and open-source hardware by purchasing |
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products from Adafruit! |
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|
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MIT license, check LICENSE for more information |
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All text above, and the splash screen below must be included in |
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any redistribution |
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*********************************************************************/ |
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#include <bluefruit.h> |
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void setup()
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{ |
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Serial.begin(115200); |
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Serial.println("Bluefruit52 Blinky Example"); |
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Serial.println("--------------------------\n"); |
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Bluefruit.begin(); |
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// Set max power. Accepted values are: -40, -30, -20, -16, -12, -8, -4, 0, 4
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Bluefruit.setTxPower(4); |
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Bluefruit.setName("Bluefruit52"); |
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// Set up and start advertising
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startAdv(); |
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} |
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void startAdv(void) |
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{
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// Advertising packet
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Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE); |
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Bluefruit.Advertising.addTxPower(); |
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Bluefruit.Advertising.addName(); |
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/* Start Advertising
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* - Enable auto advertising if disconnected |
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* - Interval: fast mode = 20 ms, slow mode = 152.5 ms |
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* - Timeout for fast mode is 30 seconds |
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* - Start(timeout) with timeout = 0 will advertise forever (until connected) |
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*
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* For recommended advertising interval |
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* https://developer.apple.com/library/content/qa/qa1931/_index.html
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*/ |
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Bluefruit.Advertising.restartOnDisconnect(true); |
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Bluefruit.Advertising.setInterval(32, 244); // in unit of 0.625 ms
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Bluefruit.Advertising.setFastTimeout(30); // number of seconds in fast mode
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Bluefruit.Advertising.start(0); // 0 = Don't stop advertising after n seconds
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} |
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void loop()
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{ |
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// Toggle both LEDs every 1 second
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digitalToggle(LED_RED); |
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delay(2000); |
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} |
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Binary file not shown.
@ -0,0 +1,183 @@ |
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/*********************************************************************
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This is an example for our nRF52 based Bluefruit LE modules |
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Pick one up today in the adafruit shop! |
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Adafruit invests time and resources providing this open source code, |
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please support Adafruit and open-source hardware by purchasing |
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products from Adafruit! |
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|
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MIT license, check LICENSE for more information |
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All text above, and the splash screen below must be included in |
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any redistribution |
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*********************************************************************/ |
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/*
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* This sketch demonstrate the central API(). A additional bluefruit |
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* that has bleuart as peripheral is required for the demo. |
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*/ |
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#include <bluefruit.h> |
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BLEClientDis clientDis; |
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BLEClientUart clientUart; |
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void setup() |
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{ |
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Serial.begin(115200); |
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Serial.println("Bluefruit52 Central BLEUART Example"); |
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Serial.println("-----------------------------------\n"); |
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// Initialize Bluefruit with maximum connections as Peripheral = 0, Central = 1
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// SRAM usage required by SoftDevice will increase dramatically with number of connections
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Bluefruit.begin(0, 1); |
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Bluefruit.setName("Bluefruit52 Central"); |
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// Configure DIS client
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clientDis.begin(); |
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// Init BLE Central Uart Serivce
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clientUart.begin(); |
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clientUart.setRxCallback(bleuart_rx_callback); |
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// Increase Blink rate to different from PrPh advertising mode
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Bluefruit.setConnLedInterval(250); |
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// Callbacks for Central
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Bluefruit.Central.setConnectCallback(connect_callback); |
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Bluefruit.Central.setDisconnectCallback(disconnect_callback); |
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/* Start Central Scanning
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* - Enable auto scan if disconnected |
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* - Interval = 100 ms, window = 80 ms |
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* - Don't use active scan |
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* - Start(timeout) with timeout = 0 will scan forever (until connected) |
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*/ |
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Bluefruit.Scanner.setRxCallback(scan_callback); |
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Bluefruit.Scanner.restartOnDisconnect(true); |
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Bluefruit.Scanner.setInterval(160, 80); // in unit of 0.625 ms
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Bluefruit.Scanner.useActiveScan(false); |
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Bluefruit.Scanner.start(0); // // 0 = Don't stop scanning after n seconds
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} |
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/**
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* Callback invoked when scanner pick up an advertising data |
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* @param report Structural advertising data |
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*/ |
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void scan_callback(ble_gap_evt_adv_report_t* report) |
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{ |
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// Check if advertising contain BleUart service
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if ( Bluefruit.Scanner.checkReportForService(report, clientUart) ) |
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{ |
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Serial.print("BLE UART service detected. Connecting ... "); |
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// Connect to device with bleuart service in advertising
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Bluefruit.Central.connect(report); |
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} |
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} |
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/**
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* Callback invoked when an connection is established |
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* @param conn_handle |
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*/ |
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void connect_callback(uint16_t conn_handle) |
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{ |
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Serial.println("Connected"); |
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Serial.print("Dicovering DIS ... "); |
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if ( clientDis.discover(conn_handle) ) |
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{ |
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Serial.println("Found it"); |
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char buffer[32+1]; |
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// read and print out Manufacturer
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memset(buffer, 0, sizeof(buffer)); |
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if ( clientDis.getManufacturer(buffer, sizeof(buffer)) ) |
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{ |
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Serial.print("Manufacturer: "); |
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Serial.println(buffer); |
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} |
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// read and print out Model Number
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memset(buffer, 0, sizeof(buffer)); |
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if ( clientDis.getModel(buffer, sizeof(buffer)) ) |
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{ |
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Serial.print("Model: "); |
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Serial.println(buffer); |
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} |
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Serial.println(); |
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}
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Serial.print("Discovering BLE Uart Service ... "); |
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if ( clientUart.discover(conn_handle) ) |
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{ |
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Serial.println("Found it"); |
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Serial.println("Enable TXD's notify"); |
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clientUart.enableTXD(); |
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Serial.println("Ready to receive from peripheral"); |
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}else |
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{ |
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Serial.println("Found NONE"); |
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// disconect since we couldn't find bleuart service
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Bluefruit.Central.disconnect(conn_handle); |
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}
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} |
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/**
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* Callback invoked when a connection is dropped |
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* @param conn_handle |
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* @param reason |
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*/ |
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void disconnect_callback(uint16_t conn_handle, uint8_t reason) |
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{ |
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(void) conn_handle; |
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(void) reason; |
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Serial.println("Disconnected"); |
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} |
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/**
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* Callback invoked when uart received data |
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* @param uart_svc Reference object to the service where the data
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* arrived. In this example it is clientUart |
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*/ |
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void bleuart_rx_callback(BLEClientUart& uart_svc) |
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{ |
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Serial.print("[RX]: "); |
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while ( uart_svc.available() ) |
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{ |
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Serial.print( (char) uart_svc.read() ); |
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} |
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Serial.println(); |
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} |
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void loop() |
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{ |
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if ( Bluefruit.Central.connected() ) |
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{ |
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// Not discovered yet
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if ( clientUart.discovered() ) |
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{ |
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// Discovered means in working state
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// Get Serial input and send to Peripheral
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if ( Serial.available() ) |
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{ |
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delay(2); // delay a bit for all characters to arrive
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char str[20+1] = { 0 }; |
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Serial.readBytes(str, 20); |
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clientUart.print( str ); |
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} |
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} |
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} |
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} |
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