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This feature is not included in precompiled binaries.

See below how to build you own Tasmota with Teleinfo enabled.


Teleinfo is a Tasmota ENERGY driver for energy meters installed by French national electricity grid manager Enedis in all households. Teleinfo driver works with either legacy meters or the new Linky meters. It is based on Charles Hallard's LibTeleinfo.

Teleinfo driver features:

  • Support for Legacy mode (mode Historique at 1200 baud) or Standard mode (9600 baud)
  • Extract fields to feed Tasmota standard ENERGY module allowing Tasmota to report standard SENSOR.ENERGY messages and all related features (PowerDelta, margins, ...)
  • Publish raw Teleinfo frame to MQTT for processing by the backend

Support in french is available on Charles Hallard forums.

Compiling with support for Teleinfo~

As the feature is not included by default, you must compile your build.

To enable Teleinfo, add the following line in your user_config_override.h and compile tasmota or tasmota32.


But as I'm testing lot of boards, my preference goes to add my custom boards section into the file platformio_tasmota_cenv.ini

For example on ESP8266 board with teleinfo and I2C display to display Energy data

extends                     = env:tasmota
platform_packages           = ${common.platform_packages}
build_unflags               = ${common.build_unflags}
build_flags                 = ${common.build_flags}

Configure GPIOs for Teleinfo~

Serial reception~

Once you have flashed Tasmota with the support for Teleinfo, you need to configure the proper GPIO to receive the Teleinfo serial data with "TInfo RX"

On ESP8266, suitable pins are

  • Standard UART0 RX pin on GPIO3 RX on GPIO3
  • Alternate UART0 RX pin on GPIO13 (D7) RX on D7

On ESP32, most of the pins can be used since uart can be mapped on almost all pins.

On Denky boards it's connected to GPIO33 and on new DenkyD4 it's on GPIO8.

Optional enable pin~

An optional Enable GPIO can be configured as "TInfo EN". Any GPIO output can be used for that purpose. Enable pin is for low power future use and avoid to have any consumption when there is nothing to do.

For example schematic on custom Denky board (ESP32) is as follow

Resistors values R3 and R4 need to be changed to work with standard and historique. New official values for R3 is 220ohm and R4 is 3.3Kohm. If you still have issues in Standard mode try to increase R3 up to 1Kohm

As you can see GPIO33 is used for RX and GPIO4 for Enable (need set to 1 to be able to receive data)

Setup in this case is

  • Enable pin on GPIO4 EN on GPIO4
  • RX pin on GPIO33 RX on GPIO33

Another example on ESP8266 could be D5/GPIO14:

EN on D5

After selecting the GPIOs, click on "SAVE" and Tasmota will reboot.

Configuring Teleinfo~

You can customize Teleinfo with the command EnergyConfig <command> <parameter>. The list of supported commands and parameters are:

Subcommand Parameters
Without any command and parameter, displays the current active configuration.
Historique Set Teleinfo in legacy (historique) mode at 1200 baud.
Standard Set Teleinfo in standard mode at 9600 baud.
NoRaw Disable sending of raw frame (see below).
Full Enable sending of all frames in raw mode.
Changed Enable sending raw frames only when data has changed.
Skip n Skips n frames before sending raw frame.
Limit Limit raw frames to values subject to fast change (Power, Current, ...)
Stats Show Teleinfo frames errors statistics

Changing mode from historique to standard and vice-versa will restart tamota.

Check current configuration~

First thing is to see how teleinfo is configured, for this you need to use EnergyConfig command from console

17:24:56.758 CMD: EnergyConfig
17:24:56.766 TIC: Settings Mode:historique, RX:GPIO23, EN:None, Raw:noraw, Skip:0, Limit:0, Stats:0
17:24:56.783 MQT: emoncms/ch2i/factory/denky_D6C0C0/stat/RESULT = {"EnergyConfig":"Done"}

In this case we can see we are in historique mode, RX data is coming on GPIO32 (it's an ESP32) and Enable Pin is not used. No MQTT raw frame will be sent (noraw) on teleinfo frame reception, so keeping default config of telemetry. Statistics are disabled, so won't be displayed on WEB UI but still available on console.

Energy from Teleinfo~

If correct mode and GPIO configuration are set, you'll be able to see on main tasmota screen something like that

It's happening only as soon as tasmota was able to read one valid frame from Teleinfo.

Data received from teleinfo is used by tasmota in real time to display information but also to calculate daily energy consumption. Of course as Teleinfo is returning lot of data (such as kWh indexes) all interesting information is displayed on the Web interface. Since we know (because it's on teleinfo frame) the current contract we can display bargraph of charge (in %). This can help to see when main house smartmeter will shut down due to over consumption (for example)

Default data~

If configuration is left by default (and if you have configured MQTT of course) you will receive a frame each time telemtry happens (menu configuration -> configure logging -> telemetry period) which is by default every 5 minutes.

You can check on console, the frame received is sent every 5 minutes under SENSOR topic as a JSON string. This frame as all default tasmota fields and also a object ENERGY related to tasmota Energy module.

17:28:45.907 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"Time":"2021-10-26T17:28:45","ENERGY":{"TotalStartTime":"2021-10-25T15:22:04","Total":9098.245,"Yesterday":6822.685,"Today":2275.560,"Period": 9,"Power":170,"Current":1.000,"Load":6},"TIC":{"ADCO":"021528603314","OPTARIF":"HC..","ISOUSC":15,"HCHC":920750,"HCHP":2275560,"PTEC":"HP..","IINST":1,"IMAX":2,"PAPP":170,"HHPHC":"A","MOTDETAT":0},"ESP32":{"Temperature":36.1},"TempUnit":"C"}
17:33:45.906 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"Time":"2021-10-26T17:33:45","ENERGY":{"TotalStartTime":"2021-10-25T15:22:04","Total":9098.255,"Yesterday":6822.685,"Today":2275.570,"Period":10,"Power":190,"Current":1.000,"Load":6},"TIC":{"ADCO":"021528603314","OPTARIF":"HC..","ISOUSC":15,"HCHC":920750,"HCHP":2275570,"PTEC":"HP..","IINST":1,"IMAX":2,"PAPP":190,"HHPHC":"A","MOTDETAT":0},"ESP32":{"Temperature":36.1},"TempUnit":"C"}
17:38:45.905 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"Time":"2021-10-26T17:38:45","ENERGY":{"TotalStartTime":"2021-10-25T15:22:04","Total":9098.265,"Yesterday":6822.685,"Today":2275.579,"Period": 9,"Power":170,"Current":1.000,"Load":6},"TIC":{"ADCO":"021528603314","OPTARIF":"HC..","ISOUSC":15,"HCHC":920750,"HCHP":2275579,"PTEC":"HP..","IINST":1,"IMAX":2,"PAPP":170,"HHPHC":"A","MOTDETAT":0},"ESP32":{"Temperature":36.7},"TempUnit":"C"}

But in our case we have also a TIC object which contains all the frame received on teleinfo frame (last reveived value), for example in the frame above the TIC object is the following.


Sending data to other~

Teleinfo is a very powerful tool to monitor house energy consumption that many of you may need to send these date to backend for other treatment. For example receiving power value every 5 minutes may be an issue to real time monitoring house consuption, this is why we introduced option to send data in real time.

Best would be sending full received frame to MQTT for example, let's do that.

Raw Frame going outside (MQTT)~

To enable real time raw teleinfo frame to be sent to MQTT you need to use EnergyConfig Full command from console

17:57:04.579 TIC: Raw to 'full'
17:57:04.594 MQT: emoncms/ch2i/factory/denky_D6C0C0/stat/RESULT = {"EnergyConfig":"Done"}
17:57:05.038 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"TIC":{"ADCO":"021528603314","OPTARIF":"HC..","ISOUSC":15,"HCHC":920750,"HCHP":2275613,"PTEC":"HP..","IINST":1,"IMAX":2,"PAPP":180,"HHPHC":"A","MOTDETAT":0}}
17:57:06.693 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"TIC":{"ADCO":"021528603314","OPTARIF":"HC..","ISOUSC":15,"HCHC":920750,"HCHP":2275613,"PTEC":"HP..","IINST":1,"IMAX":2,"PAPP":180,"HHPHC":"A","MOTDETAT":0}}
17:57:08.183 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"TIC":{"ADCO":"021528603314","OPTARIF":"HC..","ISOUSC":15,"HCHC":920750,"HCHP":2275614,"PTEC":"HP..","IINST":1,"IMAX":2,"PAPP":170,"HHPHC":"A","MOTDETAT":0}}
17:57:09.684 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"TIC":{"ADCO":"021528603314","OPTARIF":"HC..","ISOUSC":15,"HCHC":920750,"HCHP":2275614,"PTEC":"HP..","IINST":1,"IMAX":2,"PAPP":200,"HHPHC":"A","MOTDETAT":0}}

Then each frame received is sent immediately thru MQTT

Skip frames~

Depending on what you want to do on backend side it may be too much data and flood your database so we introduced Skip flag. For example we may need only one frame up to 10 to be send on backend (so free up some network traffic). To limit teleinfo frame to one each 10 frames, you need to use EnergyConfig Skip 10 command from console

18:04:43.210 CMD: EnergyConfig Skip 10
18:04:43.214 TIC: Raw each 11 frame(s)
18:04:43.226 MQT: emoncms/ch2i/factory/denky_D6C0C0/stat/RESULT = {"EnergyConfig":"Done"}
18:05:00.438 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"TIC":{"ADCO":"021528603314","OPTARIF":"HC..","ISOUSC":15,"HCHC":920750,"HCHP":2275628,"PTEC":"HP..","IINST":1,"IMAX":2,"PAPP":170,"HHPHC":"A","MOTDETAT":0}}
18:05:17.438 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"TIC":{"ADCO":"021528603314","OPTARIF":"HC..","ISOUSC":15,"HCHC":920750,"HCHP":2275629,"PTEC":"HP..","IINST":1,"IMAX":2,"PAPP":170,"HHPHC":"A","MOTDETAT":0}}

As you can see we now send one full frame every approx 17s, choose your limit depending on frame length (of course) and serial speed. In historique mode a frame takes about 1.2s to be received.

This works only if Raw mode has been selected with EnergyConfig Full.

Relevant data~

We can also going further, in previous mode, even if we limited the number of frames sent, a complete frame with all data was send. And this is not optimized because some fields in the frame may vary only once or twice a day PTEC or even never ADCO, ISOUSC, ... So we indroduced the Changed mode where only data changed from one frame to another is sent. To enable this mode, you need to use EnergyConfig Changed command from console

18:28:57.610 CMD: EnergyConfig Changed
18:28:57.615 TIC: Raw to 'changed'
18:28:57.627 MQT: emoncms/ch2i/factory/denky_D6C0C0/stat/RESULT = {"EnergyConfig":"Done"}
18:29:00.425 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"TIC":{"PAPP":160}}
18:29:17.745 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"TIC":{"PAPP":190}}
18:29:34.689 MQT: emoncms/ch2i/factory/denky_D6C0C0/tele/SENSOR = {"TIC":{"PAPP":170}}

As you can see we now only data changed is sent.

This works only if Raw mode has been selected with EnergyConfig Full and Skip mode should be disabled EnergyConfig Skip 0 for this to works properly.

Don't worry about other fields, they will be send on each telemetry data as usual.

Errors Statistics~

You can check classic frame reception errors (checksum, size, format, ...), with EnergyConfig Stats x command. Setting to 1 allow to display statistics on WEB UI while setting to 0 disable this option, but you will be able to always see stats on console with command EnergyConfig Stats.

You can clear Stats counters with EnergyConfig Stats 2

Tasmota Rules examples~

Raw Frame going outside (HTTP)~

TBD, example to post HTTP data every 5 minutes

Driving RGB Led depending on power~

TBD, example to manage Led from Green (no charge) to Red (full charge)

Tasmota Berry script examples~

TBD, any idea is welcome

Display info on display~

TBD, any idea is welcome

Raw frames examples~

You can find various raw frames for standard and historique mode and different contracts on Teleinfo replay tool here

Hardware information~

Basic Schematics~

Classic connectivity of teleinfo can be done with following schematic, works with historique and standard mode.

Basic teleinfo Schematics

DIY or ready made Shields~


Wemos Mini D1 (ESP8266) and MH-ET Live ESP32 Mini Kit

Wemos Teleinfo shield

You can get more information about this shield on github repository

Raspberry Pi (Bare PCB)~

You can also use or buy tiny Raspberry Pi shield to connect Teleinfo output signal to Tasmota device RX Pin

PI Teleinfo shield

Documentation and reference of this shield are available on tindie


You can find a lot of information, such as schematics and wiring diagrams, on Charles' blog