# Emon Tx V4 and 433MHz Radio Formats **URL:** \ **Category:** Hardware\ **Created:** [8 December 2022 11:54 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085 "2022-12-08T11:54:37Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![rupert](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/f14d63/32.png) [@rupert](https://community.openenergymonitor.org/u/rupert)\ **Post date:** [8 December 2022 11:54 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/1 "2022-12-08T11:54:37Z")
I was wondering how many RF data formats there are at the moment? I have some questions, and as I am a bit confused, | would be grateful for any help! As far as I can tell, there are three named versions: 1. Jeelab (called classic or legacy) 2. rfm69n (used when running emonLibCM on the original emonPI, with compatible versions available for other units) see [The emonPiCM](https://community.openenergymonitor.org/t/the-emonpicm/18173) 3. LowPowerLabs RFM69 (available in the emonTx V4 and the current emonBase) Is this correct? Are any of them compatible? If I want to have a system of an original emonPi (running emonLibCM), an emonTx v4 and an emon Tx V3, which format should I use, and is firmware available for all the various devices? A format versus device versus available firmware matrix table would be useful. Sorry for all the questions! I apologise if this is all documented somewhere and I haven’t found it! Thanks, rupert ---
**Author:** ![Robert.Wall](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/robert.wall/32/38246_2.png) [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\ **Post date:** [8 December 2022 12:24 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/2 "2022-12-08T12:24:45Z")
> [@rupert](#): > > Is this correct? As far as I’m aware, yes. > [@rupert](#): > > Are any of them compatible? Hardware-wise, all are. Software-wise, none are. “rfm69n” is properly called JeeLabs Native. This might help: [Radio Packet Formats.pdf](https://community.openenergymonitor.org/uploads/short-url/mO4yGiF4Ygyzb8GvHpBX6EZFoyK.pdf) (14.9 KB) ---
**Author:** ![TrystanLea](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/trystanlea/32/31_2.png) [@TrystanLea](https://community.openenergymonitor.org/u/TrystanLea)\ **Post date:** [8 December 2022 13:06 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/3 "2022-12-08T13:06:54Z")
Thats a nice format comparison, thanks @Robert.Wall > [@rupert](#): > > If I want to have a system of an original emonPi (running emonLibCM), an emonTx v4 and an emon Tx V3, which format should I use, and is firmware available for all the various devices? I will be releasing LowPowerLabs firmware for the emonTx3 and emonPi soon, so I would advise waiting for that. The advantage being that you can then make use of the acknowledgment and retry mechanism available in the LowPowerLabs implementation. ---
**Author:** ![rupert](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/f14d63/32.png) [@rupert](https://community.openenergymonitor.org/u/rupert)\ **Post date:** [8 December 2022 13:25 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/4 "2022-12-08T13:25:51Z")
@Robert.Wall , @TrystanLea Thanks very much for your answers to my questions, which have cleared up my confusion 😊 The future LowPowerLabs firmware for the emonTx3 and emonPi sounds good. ---
**Author:** ![borpin](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/borpin/32/193_2.png) [@borpin](https://community.openenergymonitor.org/u/borpin)\ **Post date:** [8 December 2022 18:08 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/5 "2022-12-08T18:08:00Z")
> [@TrystanLea](#): > > Thats a nice format comparison, Something else for the docs. Screen shot as an image. #pleaseaddtothedocs ---
**Author:** ![Robert.Wall](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/robert.wall/32/38246_2.png) [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\ **Post date:** [8 December 2022 21:54 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/6 "2022-12-08T21:54:03Z")
> [@borpin](#): > > Screen shot as an image. The original is .svg - available if needed. ---
**Author:** ![rupert](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/f14d63/32.png) [@rupert](https://community.openenergymonitor.org/u/rupert)\ **Post date:** [9 December 2022 13:27 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/7 "2022-12-09T13:27:26Z")
For anyone interested in the radio formats, I have (rather belatedly) found the following documentation: [https://docs.openenergymonitor.org/emontx4/technical.html](https://docs.openenergymonitor.org/emontx4/technical.html) ---
**Author:** ![TrystanLea](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/trystanlea/32/31_2.png) [@TrystanLea](https://community.openenergymonitor.org/u/TrystanLea)\ **Post date:** [9 December 2022 14:39 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/8 "2022-12-09T14:39:17Z")
apologies I should have linked that in here sooner! ---
**Author:** ![rupert](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/f14d63/32.png) [@rupert](https://community.openenergymonitor.org/u/rupert)\ **Post date:** [18 December 2022 15:06 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/9 "2022-12-18T15:06:20Z")
A follow on question (sorry!) - will the future LowPowerLabs firmware for the original emonPi include continuous monitoring (emonLibCM) or the original default Discrete Sampling library? ---
**Author:** ![Robert.Wall](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/robert.wall/32/38246_2.png) [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\ **Post date:** [18 December 2022 16:30 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/10 "2022-12-18T16:30:19Z")
If I’m involved - whatever update is needed for the ‘old’ emonPi, it won’t happen for a while. I’m far too busy with the emonTx V4 and it’s likely to remain like that for the foreseeable future. You can always use the emonPiCM set of software, which is available for the entire “emon” range (emonTx V2, V3.2, V3.4 but excluding the emonTx V4 and the long-obsolete emonGLCD and NanodeRF), and uses the rfm69nTxLib for transmitting and the (patched) RF69 library in the emonPi for receiving. ---
**Author:** ![TrystanLea](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/trystanlea/32/31_2.png) [@TrystanLea](https://community.openenergymonitor.org/u/TrystanLea)\ **Post date:** [18 December 2022 16:37 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/11 "2022-12-18T16:37:46Z")
Yes it’s my intention to use adapt Roberts emonPiCM firmware to use the LowPowerLabs format. The changes are relatively small and for now @Robert.Wall I don’t plan to add anything relating to this to your work load 🙂 I’m a bit delayed on this work though @rupert as I’m trying a finish a couple of emonTx4 documentation related updates, I might have been optimistic on timelines… ---
**Author:** ![rupert](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/f14d63/32.png) [@rupert](https://community.openenergymonitor.org/u/rupert)\ **Post date:** [18 December 2022 17:20 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/12 "2022-12-18T17:20:17Z")
Thanks @Robert.Wall, @TrystanLea for the updates. I can understand that you’re both very busy at the moment and don’t have time to work on the ‘old’ emonPi. I’m very grateful for all the current work that you’re both doing. I was just interested in what the plan for the future was. ---
**Author:** ![TrystanLea](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/trystanlea/32/31_2.png) [@TrystanLea](https://community.openenergymonitor.org/u/TrystanLea)\ **Post date:** [18 December 2022 18:09 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/13 "2022-12-18T18:09:00Z")
It is high up on my priority list, so hopefully sooner than later! ---
**Author:** ![rupert](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/f14d63/32.png) [@rupert](https://community.openenergymonitor.org/u/rupert)\ **Post date:** [19 December 2022 15:14 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/14 "2022-12-19T15:14:24Z")
For information, I have tried, to the best of my knowledge, to put together a table of device vs radio format which may be of interest. My apologies in advance for any errors! The table is a snapshot in time, as things will probably change in the future. I have included the Mk2 PV Router by @calypso_rae as it is a very popular device. Any corrections or comments are welcome. ![Screenshot_20221219_150636](https://community.openenergymonitor.org/uploads/default/original/3X/1/c/1c5213521bd7196db3736d171f307f143ed5aff4.png) ---
**Author:** ![TrystanLea](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/trystanlea/32/31_2.png) [@TrystanLea](https://community.openenergymonitor.org/u/TrystanLea)\ **Post date:** [20 December 2022 15:10 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/15 "2022-12-20T15:10:02Z")
Thanks Rupert that’s a useful table will help me make sure I tick them off! ---
**Author:** ![borpin](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/borpin/32/193_2.png) [@borpin](https://community.openenergymonitor.org/u/borpin)\ **Post date:** [12 February 2023 13:00 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/16 "2023-02-12T13:00:10Z")
If you could send the table to me in an editable format (anything is fine), I’ll create a docs page for it. Cheers [edit] Can you include the RFM12 as well please? ---
**Author:** ![Robert.Wall](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/robert.wall/32/38246_2.png) [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\ **Post date:** [12 February 2023 13:32 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/17 "2023-02-12T13:32:23Z")
Note 5 is not accurate, the Mk2 PV router (English version) has always been supplied with an RFM12B But there’s no reason why it cannot adopt the ‘Native’ format with an RFM69CW if desired. I can’t comment about the French version. ---
**Author:** ![rupert](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/f14d63/32.png) [@rupert](https://community.openenergymonitor.org/u/rupert)\ **Post date:** [12 February 2023 13:37 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/18 "2023-02-12T13:37:18Z")
Well I can only say that my recent Mk2 PV router (English version) kit came with an RFM69CW … What I meant in the table was that the Mk2 PV router kit needed to include the RF hardware option and that the appropriate firmware was used. I don’t know if or when Robin changed from supplying the RFM12B to the RFM69CW. His parts list includes both the RFM12B and the RFM69CW. I believe there are some discussions at [The emonPiCM - #42 by alandpearson](https://community.openenergymonitor.org/t/the-emonpicm/18173/42) on RFM12B vs RFM69CW. I don’t know if this helps. ---
**Author:** ![rupert](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/f14d63/32.png) [@rupert](https://community.openenergymonitor.org/u/rupert)\ **Post date:** [12 February 2023 15:13 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/19 "2023-02-12T15:13:04Z")
@borpin message sent There is also some information on how to to simultaneously receive (and perhaps transmit?) two (or more?) 433MHz Radio Formats at once on an emonBase, using two (or more?) receivers/transmitters… > [@Receiving JeeLib Classic and LowPowerLab in parallel](https://community.openenergymonitor.org/t/running-jeelib-classic-and-lowpowerlab-simultaneously/22563): > > I am glad to see the new Open Energy Monitor hardware uses the LowPowerLab radio library. It is great. I’ve been running devices with both libraries for a few years now, and I thought it might be a good time to post about how I do it. They key is to use a Moteino USB in addition to the RFM69Pi/RFM69SPI. Moteinos are the creation of Felix Ruso from LowPowerLab. [All about Moteino | LowPowerLab](https://lowpowerlab.com/guide/moteino/) Advantages of Moteino USB over other similar devices. Moteino USB do… ---
**Author:** ![Robert.Wall](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/robert.wall/32/38246_2.png) [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\ **Post date:** [12 February 2023 16:27 UTC](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085/20 "2023-02-12T16:27:02Z")
Having looked, I wouldn’t call it “simultaneous”. There are two parallel **receivers** , not one receiver switching between formats or receiving either format and correctly recognising and decoding it. I know it’s moot, but it could be misleading without a careful explanation. [Next page](https://community.openenergymonitor.org/t/emon-tx-v4-and-433mhz-radio-formats/22085.md?page=2)