HAPPYMODEL ELRS 2-4G ExpressLRS EPI/EP2 RX Nano Long Range Receiver SX1280 EXPRESSLRS for Racing Drone (EP1 RX)

Ep2 wouldn’t flash newest Elrs but this ep1 did and it gets better range, I know the slim ceramic antenna may draw you but if you want to really get out there this is the one.

These elrs receivers are great, small, simple, powerful. In the process of switching out a bunch of old frsky stuff.

Checked wiring 3 or 4 times before powering up and it instantly went up in smoke, never had a receiver do this before. Checked the board with an ohm meter and sure enough power was shorted to ground somewhere on the circuit board. Super bummed about this purchase

Super small and ridiculous range

Works as expected

i bought this and the ceramic version to add to my quads. the prices arent bad and should add some great range to my standard fpv stuff

I like the rxs for the size how small they are and how light they are cuz I use them on micros tp3s toothpicks drones. I plan on adding over to other things maybe planes power parachutes and such

Just recently switched to ExpressLRS and don't a compelling reason to use any other link system, even Crossfire, given that ELRS supports 900Mhz as well. These recievers support flashing over wifi, which, for me has been seamless. I've been flying these for a few weeks and no failsafes yet (knock on wood). The one issue I seem to have is that after initially binding the TX & RX (which I did using a passcode set when flashing firmware, so they just bind automatically when I turn them on - TX first, then RX) the link works perfectly, but after leaving the RX unpowered for some time (let's say 30minutes) then powering back on, the reciever does not immediately go into binding more (led flashing) but what looks like bootloader more (led solid) and never binds. Power cycling does not resolve this issue, but if I leave it on for some time (let's say 5-10min) it eventually drops out of bootloader mode and binds. Then if I power cycle again, it binds normally. Then if I leave it unpowered again for ~30min I get the problem again. Eventually, after a few days of this, the reciever stops having this issue and binds normally when powered and the issue never comes up again. I've had this happen on 3 seperate EP1 RX's. I checked if I accidentally soldered to or shorted the bootloader mode pad, but I definitely did not - certainly not on all 3 reciever. I'm not sure if this issue is due to a hardware or firmware flaw, or maybe I flashed it with some inopportune settings, but upon examination, it does not seem to be the case. This is the reason for my 4-stars vs. 5. Otherwise, ELRS is king and happymodel recievers are an excellent choice.

Ni en broma vuelvo a comprar este producto, no hay forma de bindear ni deja acceder a la memoria de ninguna forma. Algo tan pequeño tendría que venir hasta con pines soldados.