![]() ![]() #include "BLEBeacon.h" #include "esp_sleep.h"ĭefine the sleep duration for ESP32. The library will be used to send ESP32 in deep sleep mode for a defined period of time. Along with this, the deep sleep library is included for ESP32. The iBeacon library is included which sets the ESP32 as iBeacon. #include "BLEDevice.h" #include "BLEUtils.h" #include "BLEServer.h" Then the ESP32 BLE libraries are included which contains many functions used to make ESP32 in different configurations such as BLE Client or BLE Server. For more information, you can visit official UNIX release of ‘ sys/time.h’. This contains functions such as tv_sec, gettimeofday() etc. This is a time library to get the current system time. So start with inclusion of necessary Libraries which will be used in Creating BLE Server and iBeacon. The ESP32 Name will also be updated in this sketch. Now there is a slight modification in the code which is done in this tutorial. Go to File > Examples > ESP32 BLE Arduino > BLE_iBeacon.(If you don’t find this board then please check if you have installed the ESP32 Board Package) Open Arduino IDE and Select “ESP32 Dev Module”.To open the Sample Program of ESP32 BLE_iBeacon just follow below Steps. But we have slightly edited this sketch in this tutorial, the complete edited version of the sample program is given at the end of this tutorial. There is sample program of ESP32 BLE iBeacon available when you install the ESP32 Board in Arduino IDE. Packet delivery may be unreliable.Īpproaching or drowning in the noise floor. Minimum signal strength for basic connectivity. Minimum signal strength for reliable packet delivery. Minimum signal strength for applications that require very reliable, timely delivery of data packets. Not typical or desirable in the real world. The client can only be a few feet from the AP to achieve this. ![]() The RSSI signal acceptable values are as follow: Signal Strength These values will keep on changing if you move one of the devices. After taking away the smartphone from iBeacon, the RSSI value changes from -37 to -58. You can change local name in the sketch.Ĥ. Other than this there are some details such as Dummy Company Name, Device Type, Length of the Bytes, The Local Name of ESP32. The RSSI will change if you take the mobile or iBeacon away from each other. This will start searching for the available iBeacons.ģ.After searching the iBeacon, you will be able to see the RSSI, UUID, Major and Minor of iBeacon. ![]() To start searching for the iBeacon either pull down the screen or go to the ‘Scan’ option on the top right corner of the Screen. The ‘Scan’ option will be used to see all the available iBeacons. The Useful options for this project will be ‘Scan’, ‘Scanner’ and ‘Info’ when devices gets found. Download the nRF Connect app from Google Play Store and Open it.Ģ. Using the nRF Connect Android App for ESP32 iBeaconġ. This BLE scanner app provides good Graphical Interface (GUI) but lacks in additionally information so in this project we are using NRF Connect for Mobile app. There are many BLE scanner apps, one of them we have used in our previous project of How to Use HM-10 BLE Module with Arduino. Android App: nRF Connect for Mobile (By Nordic Semiconductor).You can also know more about what is Beacon/iBeacon Technology by going through our previous Bluetooth iBeacon projects using Raspberry Pi and HM-10 BLE iBeacon. I assume that you are already familiar on how to use the ESP32 board with Arduino IDE, if not fall back to the getting started with ESP32 tutorial. In this tutorial we will build a BLE iBeacon using ESP32 where ESP32 will act as a server and smartphone will act as a client. ESP32 BLE Client – Connecting to Fitness Band to Trigger a Bulb.ESP32 BLE Server - GATT Service for Battery Level Indication.Both the modes have been discussed in our previous ESP32 Tutorials: It is also possible to use ESP32 as a serial Bluetooth like the HC-05 or HC-06 modules for simple microcontroller projects.Īs we know the BLE can operate in two different modes - Server mode and Client mode. The ESP32 module supports both classic Bluetooth and Bluetooth Low Energy (BLE), the classic Bluetooth can be used to transfer songs or files and the BLE option can be used for battery optimized applications like Bluetooth beacons, fitness bands, proximity advertisements etc. The ESP32 is advanced version of its predecessor ESP8266 with extra features like RAM, ROM, GPIO Pins etc. ESP32 is really a powerful IoT device having inbuilt support for Bluetooth and WiFi. ![]()
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