switching by main power frequency recognition

[beenes]

Hi all,

There are several new mini consoled switches similar to Shelly 2.5 All types based on 8266 (LM1 or TYWE3S)

Like shelly the dual switches triggered using live power by the standard mechanical switch. If turning on the switch, as a result the GPIO input state chances from 3V3 DC to 1.5AC(50 or 60HZ depending the main frequency). Seems it can sense the main power frequency if the switch turned on.

I did try all options in the latest tasmota, but look like the current switch’s configuration doesn’t support the new mini switches. Is it possible to add new configuration to Tasmota enabling triggering by frequency recognition?

The ESP also connected to one GPIO which receiving the constant reference 1.5AC. maybe the switch IO can be compared with the reference IO, and if equal -> switch is turned on.

[Jason2866]

Please, address this to the Tasmota Support Chat. The chat is a better and more dynamic channel for helping you. Github issues are meant for Tasmota Software Bug Reporting.

Please check the Contributing Guideline and Policy and the Support Guide.

Thanks.

Support Information

See Wiki for more information. See Chat for more user experience. See Community for forum. See Code of Conduct

[thxthx0]

Summary of discord:

• they count 50Hz/60Hz pulses - needed hardware is already there

• you can do this with Counter and Rule, but in fact, it's not a satisfactory solution.

• same problem for that dimmer and even more: https://github.com/arendst/Sonoff-Tasmota/issues/5737#issuecomment-507675241

I really hope there will be a solution, maybe @chaosmaster @thirug010 @digiblur ... can help us, plzzzzz :)

• no similarity to the Shelly SW / S1 / S2... inputs.

• define a Counter at that input in Tasmota and see what is happening, when the switch is pressed. you'll see the pulses in TasmotaUI

• what we're talking about :smiley: ... https://www.aliexpress.com/item/33012114855.html

https://www.aliexpress.com/item/33012242667.html

• Jason2866: "If someone with programming skills knowing Tasmota well, have a interest to support this device maybe a PR is made.... So dont await anything."

• I don't think it's only a device specific feature, but a general and good solution to detect mains switch inputs.

e.g. additional Tasmota switch config (triggered counter / predefined number of pulses) would be great...

[Jason2866]

Since Tasmota has a lot of tasks to do, counting AC frequency pulses is not possible. Tasmota has already counter function. You can use it via rules. See wiki, commands and rules

[thxthx0]

Perhaps not the task of counting AC frequency, but a task of pulse assignment.

"not possible" ... words that coders don't know :)

edit some pics for the template repo: QS-WIFI-D01 Dimmer 150W

[Jason2866]

Just do it and make a PR ;-)

[ascillato]

Hi, there is no rule triggers for counters. By now, counters can be checked only every teleperiod time with the teleperiod message (using on counter#c1 do ... )

If adding a new trigger for counters like:

On counter1#state do power1 toggle endon

will not work either for that usecase due it will be toggling every 50ms while the switch is being pressed.

A proper solution for that should be a new gpio definition that supports frequency and have a switchdebounce feature.

At this moment I don't have that device in order to implement that. Sorry.

[thirug010]

@thxthx0

Can you post the picture of the circuit if possible

[beenes]

yes of course.

[thxthx0]

@ascillato and @thirug010 BIG, BIG thanks for your help :) highly appreciated.

@thirug010 I only have the dimmer module (issue #5737), but I think the input is the same.

That's what I found out (also most other parts if needed)

[thxthx0]

If adding a new trigger for counters like:

On counter1#state do power1 toggle endon

will not work either for that usecase due it will be toggling every 50ms while the switch is being pressed.

@ascillato

I've tried @gemu2015's Script interpreter, where it is possible to set a trigger

input=COUNTER#C1 
if chg[input]>0 then ...

but in fact, as you mentioned, there is the problem of repeated toggling.

I guess the exact number of pulses isn't relevant / 50 or 60Hz input voltage doesn't matter, and may work like this:

Are there pulses at the input? yes -> push button/switch is pressed no -> button is not pressed

for the

• WiFi Switch: if there is a short period of pulses (e.g. < 1 second) -> then toggle the relay

• WiFi Dimmer: if there is a short period of pulses -> then toggle the light (if light is on ->SerialSend '0x00' / if light is off ->SerialSend previous value )

  if there starts a longer period of pulses -> toggle dim direction and then increase/decrease dim value as long as the button is pressed (and the limits aren't reached)...

[gemu2015]

if you accept a one second delay the following script should work

>D sw=0 cnt=0 toggle=0

>T cnt=COUNTER#C1

>S if chg[cnt] then ; counter has changed, switch is on sw=1 else ; no change switch is off sw=0 endif

; set power according to switch if chg[sw]>0 then ;=>power1 %sw% toggle^=1 endif

if chg[toggle]>0 then =>power1 %toggle% endif

[thxthx0]

Many thanks @gemu2015 for the script and of course especially for your great Tasmota Script editor :thumbsup: :thumbsup: :thumbsup:

Yes, I also think the max. 1sec delay wouldn't be a problem at all.

Your script seems to work for switch (not pushbutton), but if the switch remains in one position, there is also the problem with repeated toggling.

It seems for that reason I'm not able to write a script for the dimmer with 'soft' dimming.

[gemu2015]

i edited the script above for toggling power i don't think repeated toggling should be a problem. dimming would better be done with 2 gpios

[thxthx0]

BIG thanks again!

I think that has to be changed:

; set power according to switch
if chg[sw]>0

to

; set power according to switch
if sw>0

Yes, two GPIOs would be a solution (as other dimmers do), but this WiFI Dimmer doesn't provide it and works flawless with orig. firmware.

your script for dimmer test (only light on/off) :

>D
sw=0
cnt=0
toggle=0

>B
=>print "WiFi Dimmer Script Test"
=>Baudrate 9600

>T
cnt=COUNTER#C1

>S
if chg[cnt]>0
then
; counter has changed, switch is on
sw=1
else
; no change switch is off
sw=0
endif

; set power according to switch
if sw>0
then
;=>power1 %sw%
toggle^=1
endif

if chg[toggle]>0
then
;=>power1 %toggle%
=#light
endif

#light
if toggle==0
then
=>SerialSend5 FF550005DC0A
else
=>SerialSend5 FF55FF05DC0A
endif

[gemu2015]

in the next release of scripter i introduce an F section which executes every 100ms with this option i did a one button dimmer (via websend) you may adapt this to your hardware

pr coming soon

; expand strings to hold websend >D 25 sw=0 ws="websend [192.168.178.86]" timer=0 hold=0 toggle=0

>B ; gpio 5 button input spinm(5,0)

; fast section 100ms >F sw=pin[5] ; 100 ms timer timer+=1

; 3 seconds long press ; below 0,5 short press if sw==0 and timer>5 and timer<30 then ; short press ;=>print short press toggle^=1 =>%ws% power1 %toggle% endif

if sw>0 then ;pressed if timer>30 then ; hold hold=1 ;=>print hold=%timer% if toggle>0 then =>%ws% dimmer + else =>%ws% dimmer - endif endif else timer=0 hold=0 endif

[gemu2015]

did a pr with the new features. since teleperiod counter messages were to slow i also added access to the irq driven pulse counter val=pc[x] which updates immediately.

[thxthx0]

Perfect! Thanks so much @gemu2015

I'm looking forward to testing and will reply...

[thxthx0]

WoW what should I say - it WORKS :thumbsup: Awesome!!!!!!

No more limits (well, obviously my scripting skills are, but I'm trying to get that Wifi Dimmer under control :smile: )

MANY, MANY thanks @gemu2015

@beenes the following script should do the job for your 2-Gang Wifi Switch (similar to https://www.aliexpress.com/item/33050766518.html?spm=2114)

>D
sw1=0
sw2=0
cnt1=0
cnt2=0
timer1=0
timer2=0
toggle1=0
toggle2=0

>B
=>print "WiFi 2-Gang Switch Script"

>F
; Counter1/2 and Relay1/2 configured in template
cnt1=pc[1]
cnt2=pc[2]

if chg[cnt1]>0
then
; counter1 has changed, switch is on
sw1=1
else
; no change switch is off
sw1=0
endif

if chg[cnt2]>0
then
; counter2 has changed, switch is on
sw2=1
else
; no change switch is off
sw2=0
endif

; 100 ms timer
timer1+=1
timer2+=1

if sw1==0
and timer1>2
and timer1<30
then
;=>print short press1
toggle1^=1
=>Power1 %toggle1%
endif

if sw1==0
then
timer1=0
endif

if sw2==0
and timer2>2
and timer2<30
then
;=>print short press2
toggle2^=1
=>Power2 %toggle2%
endif

if sw2==0
then
timer2=0
endif

[beenes]

Thanks guys,

Sorry @thxthx0 for my clueless question, but at the moment I have no idea how to use this script code. Definitely would like to learn. Is there a tutorial for this?

[meingraham]

@beenes https://github.com/arendst/Sonoff-Tasmota/wiki/Scripting-Language

[dbrb2]

So perhaps dimming control would be something roughly like the below? (very quick and largely missing any detail...)

`;Long press.... if timer>30 then ; held for > 3 seconds - start dimming hold=1

;=>print held for=%timer%
if toggle>0
then
    <increment dimmer variable as hex string> 
    =>SerialSend5 FF55 <dimmer> 05DC0A
else
    <decrement dimmer variable as hex string> 
    =>SerialSend5 FF55 <dimmer> 05DC0A
endif

endif ;Short press... if toggle==0 then =>SerialSend5 FF550005DC0A else =>SerialSend5 FF55 05DC0A endif `

[beenes]

@meingraham , @thxthx0 thanks for the script tutorial. which files in the release version controlling the switch configuration? the mention @thxthx0's script need to be added in a specific file before compilation?

[meingraham]

You enter the script at runtime with the device online. The script is not "compiled in". This is the same as Tasmota rules.

Third line in the scripting documentation: In submenu Configuration => edit script

Develop your script in a file and paste it into the console. Then, if you have to reset the device, you'll have the script backed up.

Mike

[thxthx0]

and you have to compile recent Tasmota dev version with enabled Scripts @beenes

//#define USE_RULES
#define USE_SCRIPT

[thxthx0]

@dbrb2 I've already managed to write a working Dimmer script :) with almost all functions of the original firmware.

one thing still missing -> a dimmer slider

@gemu2015 You got any tips for me?? :) is there anything like pc[x] ... to read Tasmota PWM "Dimmer" value or another solution...

[gemu2015]

@thxthx0 you have to define a fake pwm channel in tasmota on an unused pin you will get a slider and an on/off button then

in section >E you will get the event for this power and dimmer values

dimmer=Dimmer power=pwr[x]

according to a tutorial for scripter: i have been told to be a bad teacher for beginners. would be nice if someone with better skills in this field would write one i would certainly help if needed

[dbrb2]

Oh cool @thxthx0 would you be happy to share it?

[Jason2866]

@thxthx0 It would be highly appreciated if you add your findings to this devices in a new template. I know it is NOT a template. ALL devices are expained there. It is the place where user search... Thx

[thxthx0]

@gemu2015 Thanks man :thumbsup: I didn't get it, maybe sometimes the fault of the teacher, mostly of the lazy student ;))

@dbrb2 Of course - let me do a few more tests and maybe some changes, then I'll post it soon.

@Jason2866 Yes, I will try it (never done it before) once there is feedback that it works.

[meingraham]

The device can be added as a "miscellaneous" type in the templates repository. Since the device is an ESP device with Tasmota loaded and has certain components assigned to GPIO (real and phantom), then a template is actually in order.

In addition, information on the frequency detection circuit (i.e., the schematic above), how to connect it, the script (with copious comments) can be part of the "flashing" guide of the template.

The detailed "flashing guide" is probably best added in a second step. First create a new template in the repository with "basic" information in the notes field. After the template is merged into the repository, you can edit it (there is an "Edit on GitHub" link on the template's page) and add the details using the full markdown syntax and create a pull request to have these details merged onto the template page.

Cheers!

Mike

[beenes]

@meingraham is there any way to enable the script option? at the moment i don't have the edit script option in my submenu.

[meingraham]

@beenes https://github.com/arendst/Sonoff-Tasmota/issues/6085#issuecomment-513204013

[thxthx0]

or @beenes https://github.com/arendst/Sonoff-Tasmota/issues/6085#issuecomment-513369748 ;)

@meingraham thanks, yes, I also think there is a lot of information here and under #5737 so two steps is a good idea. I think it would also fit under "Switches and Dimmers" in the templates repository.

[thxthx0]

Hi, Script and config to test: WiFi-Dimmer-Script-v0.3.txt

for Wifi Smart Dimmer Module 220V-240V 150W e.g. https://www.aliexpress.com/item/33010332202.html?spm=2114 (Wi-Fi Dimmer Smart Life/Tuya APP MoesHouse and many other sellers)

recent Tasmota dev version with enabled Scripts is needed: https://github.com/arendst/Sonoff-Tasmota/tree/development #undef USE_RULES #define USE_SCRIPT

Generic config: GPIO1 -> Serial Tx (148) GPIO3 -> Serial Rx (149) GPIO13 -> Counter1 (42) GPIO14 -> PWM1 (37) (or any unused GPIO)

or Template: {"NAME":"WiFi Dimmer","GPIO":[0,148,0,149,0,0,0,0,0,42,37,0,0],"FLAG":0,"BASE":18}

edit: Script Update v0.2: FIX infinite loop (HA with SetOption19 1 and slider at min) v0.3: FIX obsolete code / comments / space

[meingraham]

@thxthx0

When you create the entry in the templates repository, please call the device MoesHouse MS-105 Wi-Fi Dimmer

[Jason2866]

Does this dimmer has Zero Cross Detection? Or is it a classic Triac dimmer?

[thxthx0]

@Jason2866 It's a Trailing-Edge Phase Dimmer and yes, has Zero Crossing Detection done by STM8S003F3 MCU

Although there is the misleading module name QS-WIFI-D01-TRIAC in the instruction manual, it is definitely Power MOSFET driven (SVF12N65F) for dimmable LED light bulbs / dimmable power supplies...

In my opinion the quality is high and there are many sellers who already offer it e.g. at Ali, Amazon... registered shipping from China only took about 10 days.

So maybe worth a try before Shelly presents a clone 😄

[chaosmaster]

@thxthx0 Interesting, it seems similar in hardware design as the Tuya Touch Dimmer which also uses an STM8S to handle zero-crossing detection but uses the tuya-protocol to communicate with the ESP. I have actually written a replacement-firmware for the MCU some time ago: https://github.com/chaosmaster/tuya_mcu/tree/master/stm8_tuya

Also seems to use the same pin for zero-crossing: https://github.com/chaosmaster/tuya_mcu/blob/master/stm8_tuya/src/gpio.h#L21

[thxthx0]

@chaosmaster Would be GREAT, if you could write a replacement FW here, too. I'm not familiar with STM8 MCUs, but the orig. FW seems to be protected.

The PWM output for dimming is PC3 (Pin 13) @ STM8S003F3 MCU and the serial protocol is very simple, only one command with changing dim values.

[chaosmaster]

@thxthx0 The Tuya touch uses PC7 for the PWM. I never really proceeded with the project, as i was hitting size constraints with using SDCC. I reverted back to using the original firmware that was on the MCU, but it does mostly work. I had actually planned to make the zero-crossing also available as a mains-distribution-frequency sensor to Tasmota, as it could give interesting insights in the distribution network. I also haven't worked with STM8 before or after this. I'm sure it could be easily modified to work with your dimmer.

[meingraham]

@thxthx0

Did you create an entry in the template repository? If so, did you include the frequency detection circuit and an explanation of what it does, why it's needed, and what you're doing with it?

I have created a new article for the Scripter and a Cookbook to go along with that. I pulled several examples that @gemu2015 and users have posted. https://github.com/arendst/Sonoff-Tasmota/wiki/Tasmota-Scripting-Language https://github.com/arendst/Sonoff-Tasmota/wiki/Script-Cookbook

Can you provide an abstract of what your script does; why it's required? I can add your script to the Cookbook but I'd like put an explanation with it.

Thanks!

Mike

[thxthx0]

@meingraham

I took the first step last week, but no detailed explanations yet: https://blakadder.github.io/templates/qs-wifi_D01_dimmer.html

Spent some time finding a suitable name, maybe Moes or MoesHouse in front would be a better choice, as you suggested.

Yes, I'll provide more explanations for the template repository and the Cookbook (not only the short comments in the script due max script size), but there still seem to be some issues with Alexa, HA, Domoticz...

[dbrb2]

Are there any binaries available with scripting already enabled (I realise that sounds very lazy!)

[thxthx0]

I don't think so, you may use Gitpod https://gitpod.io/#https://github.com/benzino77/tasmocompiler

with "Custom parameters" #undef USE_RULES #define USE_SCRIPT

[meingraham]

There are no plans to provide pre-compiled binaries with Scripting enabled. As suggested, Gitpod makes it super easy to get binaries for "special" use cases. You can still OTA, but you have to do it via file upload instead of pointing the web OTA to thehackbox. Still super easy. The only thing to be aware of with file upload is that you will have to perform the intermediate minimal upload yourself in order to make room for the final binary if the binary is larger than 502KB.

We have added the scripting feature to the wiki so it's easier to find information. It's in its early stages so much to be enhanced in terms of details... such as how to compile, upload, etc. But now that it's in the wiki, the user community (i.e., you guys) can start contributing your knowledge and experiences.

Cheers!

Mike

[ondoteam]

Hello! I will continue https://github.com/arendst/Sonoff-Tasmota/issues/5737#issuecomment-515796060 here. I found the bug in the script and fixed it. "Insert code" is not working very good with scripts so I will paste a link WiFi-Dimmer-Script-v0.2.txt

[thxthx0]

THX @ondoteam txt updated above

[xbmcnut]

I compiled 6.6.0.3 and enabled the above script after flashing by soldering all wires to the module (with RE and GPIO0 at GND). Working a treat thank you except the switch (momentary) connected to 'S' is not working. Is there a trick to that?

FYI, the slider also seems to set full brightness at around 30~35% in my instance so managing brightness levels is quite twitchy.

[ondoteam]

@xbmcnut hello! Did you restart the device after save the script? If not, just try. By the way double check the script, because sometimes the devices just restart when you tap "Save" button due to an exception and do not save anything.

About the slider: it is working for me, but I am using HA not Tasmota. By the way I tested it yesterday using the Tasmota WebUI and it works... the issue is from OFF to ON using the slider?

Sorry about my english :see_no_evil:

[xbmcnut]

@ondoteam Yes, hard reset after flashing. I've gone back into script editor and the V2 text is still there so assuming it stuck. Switch was working on stock firmware but as I'm new to Platformio, I'll double check my settings there but if scripts are available, I assume I got it right?