WirelessPalaControl

This project uses "palazzetti library" and a D1 Mini to control Fumis based stove using :

• HTTP GET requests
• MQTT

D1 mini is cabled to the stove using an adapter board.
It communicates using Serial protocol on ESP8266 alternative pins : D7(GPIO13) as RX / D8(GPIO15) as TX

Compatibility

It appears that Fumis Controller is used by those brands for their stoves :

• Palazzetti (All)
• Jotul (tested successfully on PF 620 & 720)
• TurboFonte
• Godin
• Fonte Flamme
• Invicta
• Alpis
• Faizen
• HETA

If you have this controller in your stove, it's likely to be compatible.

Build your adapter

You can use this adapter with:

• a D1 Mini to build a WirelessPalaControl
• another controller with serial interface
• an USB-Serial adapter and a computer to monitor or upgrade your stove

It is designed by Palazzetti using a Si8621 (Silicon Labs Isolator) to provide electrical isolation between uController and Stove electronic.
This design uses exact same schematic and components.

All files are inside schematic subfolder and has been designed with KiCad (free and open source)

Schematic

PCB

We produced a small batch of this adapter for test/debugging and our personal use. If you are interested, please PM.

Print your box

Box project (Fusion 360 & STL) can be found into box folder

Code/Compile/Flash

Source code can be compiled using VisualStudioCode/Platformio and flashed onto a D1 Mini
Or
Download latest release in Release section

Connect

/!\ You need to use an RJ11 standard phone cable. /!\
Those are crossed like this

Most of stove have an RJ11/RJ12 connector for PalaControl connection.
If you don't have it, you need to cable it using a splitter to connect screen and palaControl at the same time :

Splitter and additional cable can be found on Aliexpress (search for "6p6c splitter" and "rj12 cable").
The splitter should correspond to this small schematic :

Run

First Boot

During First Boot, the ESP boot in Access Point Mode

• Network SSID : WirelessPalaControlXXXX
• Password : PasswordPalaControl
• ESP IP : 192.168.4.1

Connect to this network and then configure it.

Configuration

WirelessPalaControl offers you some webpages in order to configure it :

• Status return you the current status of the module (and the Serial Number of your stove):
  
  Then 1 minute later, other stove information appears (default upload period)

• Config allows you to change configuration :
  
  ssid & password : IDs of your Wifi Network
  hostname : name of ESP on the network
  IP,GW,NetMask,DNS1&2 : Fixed IP configuration
  
  Fill-in MQTT broker information

• Firmware allows you to flash a new firmware version :
  

• Discover allows you to find all DomoChip devices on your network :
  

Use it

MQTT

MQTT requests can be send to /cmd topic once MQTT is configured

MQTT Command list :

• CMD+ON will turn stove ON
• CMD+OFF will turn stove OFF
• SET+POWR+3 will set power (1-5)
• SET+SETP+20 will set Set Point (desired temperature)
• SET+RFAN+2 will set Room Fan value (0-5;6=Max;7=Auto)

MQTT infos published every "Upload Period":

• STATUS status of the stove
• LSTATUS status of the stove
• T1 temperature of the stove
• T2 temperature of the stove
• T3 temperature of the stove
• T4 temperature of the stove
• T5 temperature of the stove
• F1V fan value
• F2V fan value
• F2L fan value
• F2LF fan value
• F3L fan value
• F4L fan value
• IGN ignition counter
• IGNERRORS ignition error counter
• POWERTIME total heating time (hour)
• HEATTIME ??? (hour)
• SERVICETIME heating time since last maintenance (hour)
• ONTIME time from last power ON (hour)
• OVERTMPERRORS overtemperature error counter
• STOVE_DATETIME date of the stove
• STOVE_WDAY week day of the stove
• SETP current Set Point (desired temperature)
• PQT wood pellet consumption
• PWR current power (1-5)
• FDR feeder
• DP_TARGET delta pressure target
• DP_PRESS actual delta pressure

HTTP

HTTP GET requests can be send directly and should follow this syntax : http://{IP}/cgi-bin/sendmsg.lua?cmd={command}

HTTP GET Command list :

• GET+STDT will return static data
• GET+ALLS will return all status data
• GET+STAT will return status of the stove
• GET+TMPS will return temperatures of the stove
• GET+FAND will return Fan values
• GET+SETP will return current Set Point (desired temperature)
• GET+POWR will return current power (1-5)
• GET+CUNT will return some counters
• GET+CNTR will return some counters (same as GET+CUNT)
• GET+DPRS will return delta pressure data
• GET+TIME will return stove clock data
• GET+IOPT will return IO ports status
• GET+SERN will return stove Serial Number
• GET+MDVE will return stove model and fw version
• GET+CHRD will return chrono data
• GET+PARM+92 will return parameter (ex : 92=pellet type (1-3))
• GET+HPAR+57 will return hidden parameter (ex : 57=% of pellet to feed for pellet type 3)

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WirelessPalaControl specific commands

• BKP+PARM+CSV will return all parameters in CSV format
• BKP+PARM+JSON will return all parameters in JSON format
• BKP+HPAR+CSV will return all hidden parameters in CSV format
• BKP+HPAR+JSON will return all hidden parameters in JSON format

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• CMD+ON will turn stove ON
• CMD+OFF will turn stove OFF
• SET+POWR+3 will set power (1-5)
• SET+PWRU will increase power by 1 unit
• SET+PWRD will decrease power by 1 unit
• SET+SETP+20 will set Set Point (desired temperature)
• SET+STPU will increase Set Point by 1 unit
• SET+STPD will decrease Set Point by 1 unit
• SET+RFAN+7 will set Room Fan value (0-5;6=Max;7=Auto)
• SET+FN2U will increase Room Fan by 1 unit
• SET+FN2D will decrease Room Fan by 1 unit
• SET+FN3L+0 will set Room Fan 3 value (0-5)
• SET+FN4L+0 will set Room Fan 4 value (0-5)
• SET+SLNT+0 will set Silent mode value (0-1)
• SET+CSST+0 will set Chrono Status value (0-1)
• SET+CSTH+2+18 will set Chrono Program Start Hour (1-6) (0-23)
• SET+CSTM+2+30 will set Chrono Program Start Minute (1-6) (0-59)
• SET+CSPH+2+22 will set Chrono Program Stop Hour (1-6) (0-23)
• SET+CSPM+2+45 will set Chrono Program Stop Minute (1-6) (0-59)
• SET+CSET+2+19 will set Chrono Program Set Point (1-6) (desired temperature)
• SET+CDAY+7+3+6 will set Chrono Program for week day (Day-Mem-Prog) (1-7) (1-3) (1-6)
• SET+CPRD+1+19+18+30+22+45 will set Chrono Program data (Prog-Temp-StartH-StartM-StopH-StopM) (1-6) (temperature) (0-23) (0-59) (0-23) (0-59)
• SET+PARM+92+2 will set parameter 92 to value 2 (ex : 92=pellet type (1-3))
• SET+HPAR+57+95 will set hidden parameter 57 to value 95 (ex : 57=% of pellet to feed for pellet type 3)

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WirelessPalaControl specific commands

• SET+STPF+19.8 will set Set Point with a 0.2° precision (depend of your stove model)