nRF Beacon for Eddystone is an application that supports the new Eddystone GATT configuration service allowing users to configure your beacon to advertise all types of Eddystone frame types from UID, URL, TLM and the newest EID and eTLM frame types. In addition the application uses Nearby API for scanning Eddystone beacons in close proximity and Google Proximity API to register UID, EID beacons and create/retrieve attachments for them on the Proximity API cloud. The basic features of the application includes-Foreground and background scanning of beacons using Nearby API which are registered on the Proximity API. Once an EID beacon is registered to the cloud with an attachment, the Nearby API will send the beacon EID packet to the proximity API, resolves the EID packet and retrieve the data attached to it. Please note only UID and EID beacon types can be registered on the proximity API and make sure to limit the size of an attachment to be 3KB-Registering beacons and creating attachments to proximity API-Configuration of Eddystone beacons using the new Eddystone GATT configuration service. URL shortener for configuring URL beacons## How to Guide1. First press the button 1 on the nRF52 Devkit which turns the devkit/beacon in to connectable mode for 60 seconds2. Press the connect button on the update tab on the application and the list of devices will be prompted. 3. Select the device and you will be challenged with the beacon manufacturer lock code. the lock code used for this application is 16 F's (case insensitive) and the application has the lock code hard coded4. After entering the correct lock code the application will read through all slots and display the information for each slot. This application goes hand in hand with the nRF5 SDK for Eddystone posted on Github on the following link. This link also contain a complete how to guide and the new Eddystone GATT configuration specs. Please note that some of the advanced characteristics are not supported on the firmware application and will be implemented in the near future. https://github.com/NordicSemiconductor/nrf5-sdk-for-eddystoneThe source code for nRF Beacon for Eddystone application is available on Github on the following link. https://github.com/NordicSemiconductor/Android-nRF-Beacon-for-EddystoneNote:-Android 4. 3 or newer is required. Tested on Samsung S3 with Android 4. 3, on Nexus 5, 6 and 9 with lollipop & Marshmallow and Samsung Galaxy S6, S7 with Marshmallow. Location Services need to be enabled for scanning on android 6. 0 Marshmallow and in addition, runtime persmission ACCESS_COARSE_LOCATION is also required. GET_ACCOUNTS permission is required in order to select the account to register and allow access to the Google Proximity API and URL Shortener service.