{"product_id":"happymodel-ep82-vrx-backpack-module-for-control-rapidfire-vrx-with-tx-module-for-elrs","title":"Happymodel EP82 VRX-Backpack Module for Control Rapidfire VRX with TX Module for ELRS","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003eWhat is a \"TX Backpack\"?\u003cbr\u003e\u003cbr\u003eSome of TX modules for ExpressLRS include an additional ESP8285 chip, which lets us communicate wirelessly with other ESP8285 enabled devices using a protocol called espnow. We call this chip the \"TX-Backpack\". The aim of the TX-Backpack is to allow wireless communication between the module for ExpressLRS, and other FPV related devices for command and control, or for querying config.\u003cbr\u003e\u003cbr\u003eSounds interesting. What type of FPV devices can it talk to?\u003cbr\u003e\u003cbr\u003eA prime use case is your video receiver module (or VRX). Currently there aren't many VRX modules that have an ESP8285 built in to allow them to communicate with module for ExpressLRS, so in most cases you need to add your own. A small ESP based receiver can be \"piggybacked\" onto your VRX module, which allows the module for ExpressLRS to control the band and channel that your goggles are set to. We call this device the \"VRX-Backpack\".\u003cbr\u003e\u003cbr\u003eWow cool, so I'll be able to control the module via devices for ELRS? Which VRX modules does it work with?\u003cbr\u003e\u003cbr\u003e\u003cb\u003eThe list of supported modules can be found on the Wiki \u003c\/b\u003e\u003cbr\u003eLink for \u003ca href=\"https:\/\/github.com\/ExpressLRS\/Backpack\/wiki\"\u003ehttps:\/\/github.com\/ExpressLRS\/Backpack\/wiki\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMore Information:\u003c\/b\u003e\u003cbr\u003eLink for \u003ca href=\"https:\/\/github.com\/ExpressLRS\/Backpack\"\u003ehttps:\/\/github.com\/ExpressLRS\/Backpack\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- EP82 Backpack \u003cbr\u003e- MCU: ESP8285\u003cbr\u003e- Weight: 0.37gram\u003cbr\u003e- Size: 10.5mmx10.5mmx3.5mm\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x EP82 VRX-Backpack Module\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/76616\/76616-01.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/74595%202\/76616-022.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/76616\/76616-03.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/76616\/76616-04.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/76616\/76616-05.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Happymodel","offers":[{"title":"Default Title","offer_id":40828084944945,"sku":"76616","price":11.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7078428246065_watermarked_0.jpg_0.png?v=1767776919","url":"https:\/\/www.thanksbuyer.com\/de\/products\/happymodel-ep82-vrx-backpack-module-for-control-rapidfire-vrx-with-tx-module-for-elrs","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}