Radiomaster ER5A and ER5C Express LRS Receivers • How-to Flash ELRS 3.0 with BetaFPV Recovery Dongle

In this video, I'll show you how to flash the new Radiomaster Express LRS PWM Receivers with the BetaFPV Recovery dongle.
PRODUCT [AFFILIATE] LINKS
► Radiomaster ER5A www.radiomaste...
► Radiomaster ER5C www.radiomaste...
► BetaFPV Recovery Dongle amzn.to/3DzBtMw
SOFTWARE LINKS
► Express LRS Configurator Download Page: github.com/Exp...
RCVR CHANNEL LINKS
► Support the work I do here on Patreon: / rcvideoreviews
► RC Video Reviews Website: rcvideoreviews.com
► Discord - Hang out with the RCVR Crew: / discord
► RC Pilot T-Shirts! rcvideoreviews...
AFFILIATE LINKS
► Amazon Affiliate: amzn.to/3lEz5ZL
► Banggood Affiliate: www.banggood.c...
#RCVideoReviews #ExpressLRS

[@williamcox3852]

Fast and quick and also easy configuration. Nice work John.

[@RCVideoReviews]

Thanks 👍

[@Kriya369]

This video is quite a lot helpful to me. THANK YOU!❤

[@RCVideoReviews]

You're so welcome!

[@tungym]

Thanks for the review. Matek ELRS 3 R24-P6 is still my favorite, as it has main battery voltage (up to 36V) telemetry

[@RCVideoReviews]

Yeah, I do like that voltage telemetry. Awesome feature. Would love to see that on all ELRS Rx's going forward.

[@joachimknebel3100]

Very,Very useful - Thank you 👍

[@RCVideoReviews]

Glad it was helpful! You’re welcome.

[@RedwoodRc]

Awesome review, as always. I bought the same rx, but I did not see the DIY fw in 1.6.rc-2. It only shows fw for tx modules. I ended up using the RM ER5A pwm

[@RCVideoReviews]

In Configurator v1.6.0 and ELRS v3.3 there is an option under Radiomaster 2.4ghz for ER5A/C.

[@RedwoodRc]

@RCVideoReviews I got it working on 1.5.10 it's also listed. The DiY didn't work at all, but it took the RM Fw after shutting down the wifi. Well, I'm hitting the boot button, got it.

[@knightdeluxegaming]

How to update thru wifi? what i need to press

[@williamwhitfield5571]

Very nice, works well

[@andresgarcia2448]

Can you use this with a 11.v 3 s battery on a PA addiction xl ?? Thanks

[@RCVideoReviews]

Yes

[@Rcfishingagadir]

Hi do you know how to recover this receiver....i just update with wrong flash.

[@RCVideoReviews]

Radiomaster ER5A and ER5C Express LRS Receivers • How-to Flash ELRS 3.0 with BetaFPV Recovery Dongle kzbin.info/www/bejne/b5XLepaGna9psJI Think this video shows how to recover one. You need a dongle.

[@Emma-ol7kf]

How do you know what channel to plug the esc into?

[@RCVideoReviews]

It depends on the radio/radio firmware you're using. If you're using an EdgeTX based radio like the TX16s, you can plug the ESC into any channel you want. Say you use Pin 4. In the mix page of your model setup, you then put throttle on line 4. Usually, radios have some sort of channel order like AETR where T=Throttle=Ch3. Some might be TAER T=Ch1. Electrically, it doesn't matter what pin you use. All signal pins on PWM RXs have common ground and common power. If in doubt, start with throttle on Ch3/Pin3.

[@colinbarnes705]

Is it possible to change the AUX channel without WIFI? I only have access to a desktop with ethernet

[@RCVideoReviews]

Not presently. Do you have a smartphone?

[@steelrainfpv3383]

I personally haven't jumped on the ELRS bandwagon yet because TBS is making, and I'm using their Crossfire 6 channel pwm nano receiver for my fixed wing models. Besides the obvious 2.4ghz and 915mhz difference between the protocols, are their any significant differences or advantages to an ELRS system over Crossfire besides more availability due to it's open source nature? It would seem that Crossfire would have the edge in range, signal retention and security, latency and reliability over an ELRS setup.

[@RCVideoReviews]

Range, signal retention, security, latency, reliability. Interesting set of parameters: Range - ELRS leadererboard currently has a 2.4g ELRS going 10km on 10mw of power. I've personally flown LOS and reviewed logs showing no higher than 25mw of dynamic power (the lowest power level my Tx can set) at 98% LQ. I'm sure Crossfire has good range, but at some point it becomes academic. How far do you think you're going to fly? Signal retention - I don't know what this means. I'm not aware of a signal retention metric. Security - They both frequency hop. What type of security are you looking for? Encrypted packets? Latency - ELRS can run at 1000mhz. Crossfire 900 tops at 150hz. I personally run my 8ch pwm setups at 333hz. FLRC mode has 365us OTA time for racers to minimize latency providing 1kHz update rates. ~6.5 time faster than Crossfire. Reliability - See previous comment on range. 10km @ 10mw over 10km. My own first hand LOS experience is 98% LQ @ 25mw. ELRS also supports Deja vu mode (DVDA) in 3.0 which means each packet is sent twice across multiple frequencies. There are multiple diverse Rx antenna options available. Happymodel just released a true dual diverse receiver with two radios and two antennas on one rx and I know for a fact there are more of these in the pipeline. ELRS also allows for "loan model" by bumping certain Txs or binding to a 2nd Tx from lua script. PWM servo output has recently been refactored to allow 100, 160, 333, and 400Hz which significantly reduced latency over ELRS 2.x. ELRS receivers now support vbat directly so pack voltage can be sent via telemetry even on very basic Rxs. Price - Usually < half of Crossfire for both Rx and Tx.

[@steelrainfpv3383]

@@RCVideoReviews I should have been more specific when I was mentioning security/safety/reliability which I was referring to link quality, brownouts,, interference and failsafe vulnerability. Thanks for the knowledge, comparisons and information on the ELRS system compared to crossfire, I think that I just may make the jump and experiment with the system to see which one I prefer over the other since Spektrum receivers have got so expensive, and I no longer trust lemon or orange receivers due to a few crashes between myself and other club members.

[@RCVideoReviews]

I get behind open source because the well organized projects tend to push forward and push the envelope. The key for production use is a sufficient sample set flying and not reporting major issues. Edge and ELRS are both in this stages of development. I think you’re taking the right approach. It’s what I do. Get a few bits and bobs then test for yourself.

[@JonoRob]

cool, very useful

[@RCVideoReviews]

Glad it was helpful!

[@random269]

Don't go lower than 5 channels Ail Rud elv, th, plus mode flight controller switch.

[@Mikeylikesit1968]

Unless you fly scale planes like me that need 6chs for flaps and retracts

[@russcole5685]

Do they have a Sbus output. I use a very cheap Sbus to pwm board off of allyexpress. 8ch board. Changeable from 1-8 or 9-16. I use them with my X8R's. I use separate channels for each servo. Redundancy. Not a fan of Y leads. Plus I split rudder, steering wheel channels to two. So a simple 6ch plane has about 13 channels, especially if I'm using a RX8R

[@RCVideoReviews]

Then get a 6ch matek....?

[@RCVideoReviews]

sbus is not supported natively, but there are add-on cards for $3.50. And that's not a simple plane. You have a specific use case that obviously isn't supported by 5 channels.

[@russcole5685]

@@RCVideoReviews yup. Sorry. Wrong use of words, I was meaning that I turn a simple 6ch into a more complex set up to achieve my thoughts. I'm not sure if my thinking is correct. But it works

[@RCVideoReviews]

I have a simple perspective on this: Your Money, Your Hobby. Do what makes you happy to do.

[@RedwoodRc]

Sorry, I wasn't finished. Now my rx losses it's link for a few sec then comes back

[@RCVideoReviews]

Make sure you don't have the TX too close to RX. Also, you may need to look at telemetry and/or logging to see what's going on.