# Linux and Arduino Credits to [Github Daniela Plascencia DnPlas](https://github.com/dnplas) ## Arduino Based Development Board ```c /* Copyright (c) 2015 Intel Corporation. All rights reserved. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include BLEPeripheral blePeripheral; // BLE Peripheral Device (the board you're programming) BLEService ledService("19B10000-E8F2-537E-4F6C-D104768A1214"); // BLE LED Service // BLE LED Switch Characteristic - custom 128-bit UUID, read and writable by central BLEUnsignedCharCharacteristic switchCharacteristic("19B10001-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite); const int ledPin = 13; // pin to use for the LED void setup() { Serial.begin(9600); // set LED pin to output mode pinMode(ledPin, OUTPUT); // set advertised local name and service UUID: blePeripheral.setLocalName("LED"); blePeripheral.setAdvertisedServiceUuid(ledService.uuid()); // add service and characteristic: blePeripheral.addAttribute(ledService); blePeripheral.addAttribute(switchCharacteristic); // set the initial value for the characeristic: switchCharacteristic.setValue(0); // begin advertising BLE service: blePeripheral.begin(); Serial.println("BLE LED Peripheral"); } void loop() { // listen for BLE peripherals to connect: BLECentral central = blePeripheral.central(); // if a central is connected to peripheral: if (central) { Serial.print("Connected to central: "); // print the central's MAC address: Serial.println(central.address()); // while the central is still connected to peripheral: while (central.connected()) { // if the remote device wrote to the characteristic, // use the value to control the LED: if (switchCharacteristic.written()) { if (switchCharacteristic.value()) { // any value other than 0 Serial.println("LED on"); digitalWrite(ledPin, HIGH); // will turn the LED on } else { // a 0 value Serial.println(F("LED off")); digitalWrite(ledPin, LOW); // will turn the LED off } } } // when the central disconnects, print it out: Serial.print(F("Disconnected from central: ")); Serial.println(central.address()); } } ``` ## Linux Based Development Board ```bash root@edison:~# hcitool lescan LE Scan ... 98:4F:EE:0F:80:FE LED 98:4F:EE:0F:80:FE (unknown) ^Croot@edison:~# ``` ```bash root@edison:~# rfkill unblock bluetooth root@edison:~# bluetoothctl [NEW] Controller 98:4F:EE:04:1A:8C MyEdison [default] [NEW] Device 98:4F:EE:0F:2B:E0 ARDUINO 101-2BE0 [NEW] Primary Service /org/bluez/hci0/dev_98_4F_EE_0F_2B_E0/service0009 Vendor specific [NEW] Characteristic /org/bluez/hci0/dev_98_4F_EE_0F_2B_E0/service0009/char000a Vendor specific [NEW] Device 98:4F:EE:06:1B:99 edison [NEW] Device 2C:D0:5A:80:7A:44 AARCEMOR-MOBL3 [NEW] Device 40:78:6A:26:4A:C2 XT1008 [bluetooth]# ``` ```bash [bluetooth]# scan on Discovery started [CHG] Controller 98:4F:EE:04:1A:8C Discovering: yes [NEW] Device 98:0D:2E:CD:84:90 Victoretorotavi [NEW] Device 60:D8:19:AF:8F:12 CDAVALOX-MOBL [NEW] Device C8:FF:28:A0:71:1C LAPASXA10W10 [NEW] Device E8:B1:FC:09:6A:FE ubuntu-gnome-0 [NEW] Device 98:4F:EE:06:44:E5 98-4F-EE-06-44-E5 [CHG] Device 98:4F:EE:06:44:E5 RSSI: -64 [CHG] Device 98:4F:EE:06:44:E5 TxPower: 0 [CHG] Device 98:4F:EE:06:44:E5 Name: edison [CHG] Device 98:4F:EE:06:44:E5 Alias: edison [CHG] Device 98:4F:EE:06:44:E5 Modalias: usb:v1D6Bp0246d0525 [CHG] Device 98:4F:EE:06:44:E5 UUIDs: 00001800-0000-1000-8000-00805f9b34fb [CHG] Device 98:4F:EE:06:44:E5 UUIDs: 00001801-0000-1000-8000-00805f9b34fb [CHG] Device 98:4F:EE:06:44:E5 UUIDs: 0000110e-0000-1000-8000-00805f9b34fb [CHG] Device 98:4F:EE:06:44:E5 UUIDs: 0000110c-0000-1000-8000-00805f9b34fb [CHG] Device 98:4F:EE:06:44:E5 UUIDs: 0000111e-0000-1000-8000-00805f9b34fb [CHG] Device 98:4F:EE:06:44:E5 UUIDs: 0000110a-0000-1000-8000-00805f9b34fb [CHG] Device 98:4F:EE:06:44:E5 UUIDs: 0000110b-0000-1000-8000-00805f9b34fb [CHG] Device 98:0D:2E:CD:84:90 RSSI: -71 [CHG] Device 98:0D:2E:CD:84:90 RSSI: -71 [CHG] Device 98:4F:EE:0F:2B:E0 Connected: no [CHG] Device 98:4F:EE:0F:2B:E0 RSSI: -61 [CHG] Device 98:4F:EE:0F:2B:E0 Name: LED [CHG] Device 98:4F:EE:0F:2B:E0 Alias: LED [bluetooth]# scan off [CHG] Device 98:4F:EE:0F:2B:E0 RSSI is nil [CHG] Device 98:4F:EE:06:44:E5 TxPower is nil [CHG] Device 98:4F:EE:06:44:E5 RSSI is nil [CHG] Device E8:B1:FC:09:6A:FE TxPower is nil [CHG] Device E8:B1:FC:09:6A:FE RSSI is nil [CHG] Device C8:FF:28:A0:71:1C TxPower is nil [CHG] Device C8:FF:28:A0:71:1C RSSI is nil [CHG] Device 60:D8:19:AF:8F:12 TxPower is nil [CHG] Device 60:D8:19:AF:8F:12 RSSI is nil [CHG] Device 98:0D:2E:CD:84:90 TxPower is nil [CHG] Device 98:0D:2E:CD:84:90 RSSI is nil Discovery stopped [CHG] Controller 98:4F:EE:04:1A:8C Discovering: no [bluetooth]# ``` ```bash [bluetooth]# connect 98:4F:EE:0F:2B:E0 Attempting to connect to 98:4F:EE:0F:2B:E0 [CHG] Device 98:4F:EE:0F:2B:E0 Connected: yes Connection successful [LED]# ``` ```bash [LED]# list-attributes Primary Service /org/bluez/hci0/dev_98_4F_EE_0F_2B_E0/service0009 Vendor specific Characteristic /org/bluez/hci0/dev_98_4F_EE_0F_2B_E0/service0009/char000a Vendor specific [LED]# ``` ```bash [LED]# select-attribute /org/bluez/hci0/dev_98_4F_EE_0F_2B_E0/service0009/char000a ``` ```bash [LED:/service0009/char000a]# read Attempting to read /org/bluez/hci0/dev_98_4F_EE_0F_2B_E0/service0009/char000a [CHG] Attribute /org/bluez/hci0/dev_98_4F_EE_0F_2B_E0/service0009/char000a Value: 0x00 00 . [LED:/service0009/char000a]# write 01 Attempting to write /org/bluez/hci0/dev_98_4F_EE_0F_2B_E0/service0009/char000a [LED:/service0009/char000a]# write 00 Attempting to write /org/bluez/hci0/dev_98_4F_EE_0F_2B_E0/service0009/char000a [LED:/service0009/char000a]# ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://theiotlearninginitiative.gitbook.io/internetofthingscommunications/connectivity/bluetooth/laboratory/linux-and-arduino.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.