# \#firmware **URL:** https://community.openenergymonitor.org/tag/firmware/109.md [Latest](https://community.openenergymonitor.org/latest.md) · [Categories](https://community.openenergymonitor.org/categories.md) · [Tags](https://community.openenergymonitor.org/tags.md) --- ## [Vaillant aroTHERM Plus Firmware](https://community.openenergymonitor.org/t/vaillant-arotherm-plus-firmware/29419)
**Author:** [@talonsco](https://community.openenergymonitor.org/u/talonsco)\ **Replies:** 7\ **Last updated:** [13 May 2026 11:30 UTC](https://community.openenergymonitor.org/t/vaillant-arotherm-plus-firmware/29419 "2026-05-13T11:30:25Z")
Hello Everyone, I moved into a property early this year which already had a heat pump installed. It is a VWL aroTHERM plus /6 Mono 125. I have this week added an internet gateway to the system to complement the sensoC… --- ## [EmonTx4's unstable behavior](https://community.openenergymonitor.org/t/emontx4s-unstable-behavior/28935)
**Author:** [@FredM67](https://community.openenergymonitor.org/u/FredM67)\ **Replies:** 107\ **Last updated:** [13 November 2025 05:22 UTC](https://community.openenergymonitor.org/t/emontx4s-unstable-behavior/28935 "2025-11-13T05:22:04Z")
Hi all, This thread is a “copy” of an issue I wrote a couple of days ago. Here, it’ll be more visible, maybe other users experienced the same problem. Playing around with an ESP32-expansion board and ESPHome, I could n… --- ## [Understanding the avrdude (EmonTX5) firmware config options](https://community.openenergymonitor.org/t/understanding-the-avrdude-emontx5-firmware-config-options/27167)
**Author:** [@davidski](https://community.openenergymonitor.org/u/davidski)\ **Replies:** 3\ **Last updated:** [17 November 2024 01:06 UTC](https://community.openenergymonitor.org/t/understanding-the-avrdude-emontx5-firmware-config-options/27167 "2024-11-17T01:06:49Z")
Related to my other post on compiling the avdude firmware, there are a couple config options which I’m looking to get more info on: -) The USA option is hardcoded (for EmonTX5 at least) to false. Since I’m in the US wi… --- ## [Difficulties compiling EmonTX5 (avrdude) firmware](https://community.openenergymonitor.org/t/difficulties-compiling-emontx5-avrdude-firmware/27166)
**Author:** [@davidski](https://community.openenergymonitor.org/u/davidski)\ **Replies:** 5\ **Last updated:** [16 November 2024 20:14 UTC](https://community.openenergymonitor.org/t/difficulties-compiling-emontx5-avrdude-firmware/27166 "2024-11-16T20:14:28Z")
I’m trying to compile the avrdude firmware for my EmonTX5 following the OEM guide and using PlatformIO. I’m encountering an error related to a missing dependency: \/avrdb\_firmware/emon\_DB\_12CT/emon\_DB\_12CT.ino:… --- ## [Emonevse Firmware update from 4.1.1](https://community.openenergymonitor.org/t/emonevse-firmware-update-from-4-1-1/26273)
**Author:** [@Drogos](https://community.openenergymonitor.org/u/Drogos)\ **Replies:** 0\ **Last updated:** [10 June 2024 16:59 UTC](https://community.openenergymonitor.org/t/emonevse-firmware-update-from-4-1-1/26273 "2024-06-10T16:59:58Z")
I am running firmware 4.1.1 on my emonevse. One with an ethernet card, not wifi. Seems like the mqtt for pilot is not updating, so I was wondering if there is a firmware update I can install on it? I tried to navigate th… --- ## [emonPi CM Firmware Update Oddities](https://community.openenergymonitor.org/t/emonpi-cm-firmware-update-oddities/24936)
**Author:** [@rdavies6](https://community.openenergymonitor.org/u/rdavies6)\ **Replies:** 12\ **Last updated:** [29 March 2024 22:41 UTC](https://community.openenergymonitor.org/t/emonpi-cm-firmware-update-oddities/24936 "2024-03-29T22:41:41Z")
I recently updated my old emonPi to the latest CM firmware (from the original Classic firmware), The process was a little fraught…but over the last few days it’s seems to be working again (although sadly I did manage to … --- ## [No connection with diy emontx4](https://community.openenergymonitor.org/t/no-connection-with-diy-emontx4/24361)
**Author:** [@psykok](https://community.openenergymonitor.org/u/psykok)\ **Replies:** 5\ **Last updated:** [13 September 2023 20:29 UTC](https://community.openenergymonitor.org/t/no-connection-with-diy-emontx4/24361 "2023-09-13T20:29:15Z")
Hi, I recently started to build a new set of emontx4. I finished to populate one board but I cannot manged to upload the firmware. I tested with my emonsd pi or directly from the Arduino IDE and I’m always getting the… --- ## [Custom emonTH firmware updates - via emonPi?](https://community.openenergymonitor.org/t/custom-emonth-firmware-updates-via-emonpi/23397)
**Author:** [@christian](https://community.openenergymonitor.org/u/christian)\ **Replies:** 4\ **Last updated:** [13 April 2023 10:33 UTC](https://community.openenergymonitor.org/t/custom-emonth-firmware-updates-via-emonpi/23397 "2023-04-13T10:33:15Z")
Hi all, I want to increase the number of external sensors attached to an emonTH. I’ve been reading the documentation for updating emonTH firmware and in the section headed “Updating firmware using an emonPi/emonBase” i… --- ## [EmonTH2 3.2.6 rf initialisation](https://community.openenergymonitor.org/t/emonth2-3-2-6-rf-initialisation/22600)
**Author:** [@AndyS](https://community.openenergymonitor.org/u/AndyS)\ **Replies:** 4\ **Last updated:** [24 January 2023 18:34 UTC](https://community.openenergymonitor.org/t/emonth2-3-2-6-rf-initialisation/22600 "2023-01-24T18:34:29Z")
I’m troubleshooting rf interference causing data drop outs, from a position of zero background knowledge of rf or the OEM hardware/firmware. So far, I have determined by rtl-sdr dongle that there is interference with emo… --- ## [emonTH - Arduino IDE - 'showString' was not declared in this scope](https://community.openenergymonitor.org/t/emonth-arduino-ide-showstring-was-not-declared-in-this-scope/17041)
**Author:** [@MikeB](https://community.openenergymonitor.org/u/MikeB)\ **Replies:** 4\ **Last updated:** [28 February 2021 22:46 UTC](https://community.openenergymonitor.org/t/emonth-arduino-ide-showstring-was-not-declared-in-this-scope/17041 "2021-02-28T22:46:27Z")
EmonTH2 - Firmware updating Please can someone help? PS - I’m new to Linux (i.e. installed it yesterday), Arduino’s, IDE’s, git & scripting, so this has been one hell of a learning curve. I’ve eventually got to the st… --- ## [Update emon evse wifi firmware to 3.x - lost connectivity](https://community.openenergymonitor.org/t/update-emon-evse-wifi-firmware-to-3-x-lost-connectivity/16143)
**Author:** [@Antoine\_Maartens](https://community.openenergymonitor.org/u/Antoine_Maartens)\ **Replies:** 5\ **Last updated:** [3 December 2020 19:37 UTC](https://community.openenergymonitor.org/t/update-emon-evse-wifi-firmware-to-3-x-lost-connectivity/16143 "2020-12-03T19:37:29Z")
Fear I was a bit too gready - sorry Update my emon evse wifi module to 2.9.1. Worked fine. Tried 3.1(?) - restart failed - connectivity lost. Do I need to go back to factory settings through hardware reset or is ther… --- ## [Old emonTx sending invalid data](https://community.openenergymonitor.org/t/old-emontx-sending-invalid-data/15822)
**Author:** [@Guff666](https://community.openenergymonitor.org/u/Guff666)\ **Replies:** 2\ **Last updated:** [27 October 2020 10:59 UTC](https://community.openenergymonitor.org/t/old-emontx-sending-invalid-data/15822 "2020-10-27T10:59:41Z")
A long time ago, I purchased a coupl of emonTXV2.2 boards but got diverted onto other projects. I’ve now come back to this and am having problems. I’ve uploaded the code from emonTx\_CT123, set the node ID to 5 and only … --- ## [Is it possible to view emontx and emonbase version information from just emoncms.org](https://community.openenergymonitor.org/t/is-it-possible-to-view-emontx-and-emonbase-version-information-from-just-emoncms-org/15740)
**Author:** [@Wokingham](https://community.openenergymonitor.org/u/Wokingham)\ **Replies:** 3\ **Last updated:** [19 October 2020 11:57 UTC](https://community.openenergymonitor.org/t/is-it-possible-to-view-emontx-and-emonbase-version-information-from-just-emoncms-org/15740 "2020-10-19T11:57:14Z")
I would like to view the version information of the emontx+emonbase combination. it is currently located in a difficult to access location and logging through a 4g router. I tried setting up dataplicity before installi… --- ## [ADC value transformation location (microcontroller vs server)](https://community.openenergymonitor.org/t/adc-value-transformation-location-microcontroller-vs-server/14320)
**Author:** [@awjlogan](https://community.openenergymonitor.org/u/awjlogan)\ **Replies:** 12\ **Last updated:** [30 May 2020 19:25 UTC](https://community.openenergymonitor.org/t/adc-value-transformation-location-microcontroller-vs-server/14320 "2020-05-30T19:25:16Z")
Hi - First, just to say it’s great to see a project like this so well supported and active. I’m looking forward to building/contributing a small system to it. A very general question, but I was wondering if the rationa… --- ## [EmonPI firmware build](https://community.openenergymonitor.org/t/emonpi-firmware-build/12428)
**Author:** [@adtyne](https://community.openenergymonitor.org/u/adtyne)\ **Replies:** 45\ **Last updated:** [17 November 2019 13:52 UTC](https://community.openenergymonitor.org/t/emonpi-firmware-build/12428 "2019-11-17T13:52:27Z")
I am running emonSD-17Oct19, and I have been trying to modify the emonpi firmware to send powerfactor and current values. However when I build and flash using platformio on the Raspberry PI, my emonTH devices input stop… --- ## [Compile calibration changes](https://community.openenergymonitor.org/t/compile-calibration-changes/10524)
**Author:** [@David.arevalo](https://community.openenergymonitor.org/u/David.arevalo)\ **Replies:** 8\ **Last updated:** [8 April 2019 22:01 UTC](https://community.openenergymonitor.org/t/compile-calibration-changes/10524 "2019-04-08T22:01:08Z")
Hello! I’m trying to calibrate my emonpi following the steps described here: https://learn.openenergymonitor.org/electricity-monitoring/ctac/calibration However, when I try to change the coefficients and voltage value… --- ## [Uno. emonTx Shield. 3Phase. RFM69. - - - Recommended firmware?](https://community.openenergymonitor.org/t/uno-emontx-shield-3phase-rfm69-recommended-firmware/8009)
**Author:** [@danbates](https://community.openenergymonitor.org/u/danbates)\ **Replies:** 16\ **Last updated:** [28 July 2018 20:01 UTC](https://community.openenergymonitor.org/t/uno-emontx-shield-3phase-rfm69-recommended-firmware/8009 "2018-07-28T20:01:00Z")
As above… I have an Arduino Uno with emonTxShield. I’m looking to setup monitoring for a 3-phase installation. I want to use the Tx’s RFM69CW radio module to emonBase. I can get this firmware working: to monitor the… --- ## [PlatformIO on emonpi can't access tty port](https://community.openenergymonitor.org/t/platformio-on-emonpi-cant-access-tty-port/5817)
**Author:** [@technerdian](https://community.openenergymonitor.org/u/technerdian)\ **Replies:** 4\ **Last updated:** [29 November 2017 15:51 UTC](https://community.openenergymonitor.org/t/platformio-on-emonpi-cant-access-tty-port/5817 "2017-11-29T15:51:53Z")
I’m modifying the firmware to return real and apparent power from both CTs in order to use these to calculate the power factor in a Virtual Feed in emoncms. I’ve bought 4 emonpi units and am doing this with all of them. … --- ## [Disable RFM on EmonTX](https://community.openenergymonitor.org/t/disable-rfm-on-emontx/5559)
**Author:** [@Pukka](https://community.openenergymonitor.org/u/Pukka)\ **Replies:** 3\ **Last updated:** [5 November 2017 13:32 UTC](https://community.openenergymonitor.org/t/disable-rfm-on-emontx/5559 "2017-11-05T13:32:04Z")
Hi All, I have installed an EmonESP to a EmonTX v3, i would like to disable the 433Mhz from broadcasting is it just a case of changing a line in the firmware to “boolean RF\_STATUS = 0” //-----------------------RFM12B /… --- ## [How to enable 12bit for STM32F103](https://community.openenergymonitor.org/t/how-to-enable-12bit-for-stm32f103/5317)
**Author:** [@mel](https://community.openenergymonitor.org/u/mel)\ **Replies:** 1\ **Last updated:** [10 October 2017 11:23 UTC](https://community.openenergymonitor.org/t/how-to-enable-12bit-for-stm32f103/5317 "2017-10-10T11:23:09Z")
I’m trying to use STM32F103C8 with EmonLib. STM32 has 12bits ADC. It would be good to use it. I tried to enable it by using setup parameter analogReadResolution(12); However, it does not fly. I got an error 'analogRe… --- ## [Irms, Vrms does not match reported power value for CT4](https://community.openenergymonitor.org/t/irms-vrms-does-not-match-reported-power-value-for-ct4/3059)
**Author:** [@patrikarlos](https://community.openenergymonitor.org/u/patrikarlos)\ **Replies:** 10\ **Last updated:** [14 February 2017 13:57 UTC](https://community.openenergymonitor.org/t/irms-vrms-does-not-match-reported-power-value-for-ct4/3059 "2017-02-14T13:57:18Z")
I would need some input from you experts. Im running the emonTxV3\_4\_Continous\_Beta and the corresponding EmonLibCM. I’ve got a couple of EmonTxv3.4’s; and I was in the procedure of calibrating them (following the instr… --- ## [Recompiling RFM69Pi firmware](https://community.openenergymonitor.org/t/recompiling-rfm69pi-firmware/2618)
**Author:** [@adpeace](https://community.openenergymonitor.org/u/adpeace)\ **Replies:** 20\ **Last updated:** [8 January 2017 17:05 UTC](https://community.openenergymonitor.org/t/recompiling-rfm69pi-firmware/2618 "2017-01-08T17:05:03Z")
I have an RFM2Pi module with an RF69 module (unmodified, as purchased around November last year). I believe it is the RFM69PI V3 but has a blue PCB not red. It’s been working great, but I wanted to experiment with my o… --- ## [The atmega gets stuck with a soft/hard modification](https://community.openenergymonitor.org/t/the-atmega-gets-stuck-with-a-soft-hard-modification/1513)
**Author:** [@Solaris](https://community.openenergymonitor.org/u/Solaris)\ **Replies:** 2\ **Last updated:** [9 September 2016 14:20 UTC](https://community.openenergymonitor.org/t/the-atmega-gets-stuck-with-a-soft-hard-modification/1513 "2016-09-09T14:20:40Z")
Hello all, This is my first post. Amazing work done here! Congratulations! I am developing a new board based on emonTX. It will be in sleep mode most part of the time to save energy because it is powered by a battery. … --- ## [New blog post: Part 3/3: Continuous Deployment (OTA Update to ESP8266)](https://community.openenergymonitor.org/t/new-blog-post-part-3-3-continuous-deployment-ota-update-to-esp8266/877)
**Author:** [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\ **Replies:** 0\ **Last updated:** [29 June 2016 19:21 UTC](https://community.openenergymonitor.org/t/new-blog-post-part-3-3-continuous-deployment-ota-update-to-esp8266/877 "2016-06-29T19:21:58Z")
This post is part of a blog post series 1/3 PlatfomIO overview & compiling + uploading locally and on a Raspberry Pi 2/3: Continuous testing and auto release binary generation using PlatformIO & TravisCI Related post:…