Tasmota: GPIO14 as normal wall switch

[titomontes]

Hello

I just read severao posts in the forum refering to GPIO14; I just want to use it as a wall switch (as I understand, I have to hook it up to GPIO14 and GND), but having selecting <09 Switch1> in config and switchmode <4> in console, GPIO14 still functions as toggle (shorting and holding returns an ON state, but disengaging does nothing).
I,ve already selected

define SWITCH_MODE PUSHBUTTONHOLD_INV

before flashing, I don´t know what else to do.

Please help!

[ionciubotaru]

set switchTopic if you don't want to toggle the relay

[titomontes]

Thanks

I´m referring to using sonoff as standalone: I need to use a physical normal wall switch; Do I need to use SwitchTopic in console?, if so, what value do I need to enter?

[ionciubotaru]

If you need to toggle RELAY1 with SWITCH1 set switchTopic 0
If you need to send a MQTT message and not toggle RELAY1 with SWITCH1 set switchTopic <yourDesiredTopic>

Hardware solution: connect your wall switch to GPIO0

[titomontes]

I´ve seen this video a million times. In it, you can clearly see that he uses GPIO14 to detect a state change, specifically with Tasmota. I´m not feeling really comfortable soldering and desoldering, much less adding a resistor (not much ability for it, anyway. Only managed to solder through the holes that already come empty), so I´m searching hour after hour for a solution, with not much success...

[PeggyFree]

Use a TH10, you'll get 3.3v gnd and pulled up gpio14 through the Jack plug.
No soldering needed.

On mar. 29 août 2017 15:31 titomontes [e-mail] wrote:

I´ve seen this video https://youtu.be/8mz5sCAvDAY?t=22m36s a million
times. In it, you can clearly see that he uses GPIO14 to detect a state
change, specifically with Tasmota. I´m not feeling really comfortable
soldering and desoldering, much less adding a resistor (not much ability
for it, anyway. Only managed to solder through the holes that already come
empty), so I´m searching hour after hour for a solution, with not much
success...

—
You are receiving this because you are subscribed to this thread.
Reply to this email directly, view it on GitHub
https://github.com/arendst/Sonoff-Tasmota/issues/799#issuecomment-325664251,
or mute the thread
https://github.com/notifications/unsubscribe-auth/AcMo5S7JMklaVPgWRKMCj3SXYlOScVeVks5sdBKbgaJpZM4PDyOq
.

[titomontes]

Yeah, a little more expensive and a lot less challenging. Basic works just fine for that, and TH10 also needs to be flashed...

[titomontes]

Yeah, a little more expensive and a lot less challenging. Basic works just fine for that, and TH10 also needs to be flashed...

[titomontes]

Sorry for the double comment...

[nizamaj]

@titomontes : I had the same issue.... finally i figure it out ...Now it working fine for me , Once everything configured and hooked up ... find out the IP address of the Sonoff (Tasmota) and log in & Go to --- Configuration --- Configure Module --- Module type select Sonoff Basic & Bottom GPIO14 Sensor Change to 09 Switch 1 and save .. if everything fine it should work .

[lukesaber]

This looks like a fantastic project and i'm very thankful for everyone contributing.

I have a question that im surprised i cannot find an answer to...

If i have a toggle switch holding the device on via GPIO14, and i connect to it via smartthings, can i turn it off via wireless communication?
What happens with the state of the switch?
do i need to cycle the physical switch off and then back on to turn the light (or appliance) back on, or is my switch inverted?

hoping someone else has asked and this is old news.

Thanks

[davidelang]

On Tue, 9 Jan 2018, lukesaber wrote:

If i have a toggle switch holding the device on via GPIO14, and i connect to it via smartthings, can i turn it off via wireless communication?

yes

What happens with the state of the switch?

nothing changes, there is no ability to physically move the switch

do i need to cycle the physical switch off and then back on to turn the light (or appliance) back on, or is my switch inverted?

that depends on you you configure the switch, you can make it so that you have
to turn the switch off and on, or you can have it that any change in the state
of the switch toggles the light (in which case the switch doesn't really have an
off and on, just like a 3-way switch doesn't)

[nhorvath]

that depends on you you configure the switch, you can make it so that you have to turn the switch off and on, or you can have it that any change in the state of the switch toggles the light (in which case the switch doesn't really have an off and on, just like a 3-way switch doesn't)

Could you elaborate on what I would need to configure to make a normal on/off toggle switch (non momentary) on GPIO14 work like a 3 way switch? In addition to setting GPIO14 to 09 Switch1 what would I need to do? I'm currently using (and would like to still work) MQTT to toggle it on/off. The built in pushbutton is physically inaccessible in my setup.
Ideally, I'd like the toggle switch to also update MQTT state.
I'm using a sonoff basic.

Thanks for any assistance.

[nhorvath]

I'm going to answer my own question.
In Module Config set GPIO14 to 09 Switch1
Set switch 1 to PUSHBUTTON_TOGGLE mode, which can be done by opening this url in a browser:
http://[ip address of sonoff]/cm?cmnd=SwitchMode1%207
if you have admin password set:
http://[ip address of sonoff]/cm?user=admin&password=[password]&cmnd=SwitchMode1%207

Toggling the switch sends the appropriate MQTT message and toggles the relay.

[kamenyev]

Hello,

I just tried the above mentioned way to connect a "regular" wall switch to GPIO14 on a Sonoff Basic. After saving the changes in the Module Config (set GPIO14 to 09 Switch1) the led/relay went off and since then no response from the board.

I tried to re-flash with platformIO, and it seemingly succeeded, but still no sign of life. No WiFi, and no button response.
Does anyone have an ide what could the reason be?

Thanks in advance.

[nhorvath]

try flashing an empty image to clear out all the config area, then reflashing. when you flash normally it doesn't overwrite the config section of the flash.

[kamenyev]

Thank you!
I' didn't know how to write empty image, but the latest firmware seemed to
work.

Thanks again.

On Tue, 8 May 2018 at 21:19, Nick Horvath [e-mail] wrote:

try flashing an empty image to clear out all the config area, then
reflashing. when you flash normally it doesn't overwrite the config section
of the flash.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
https://github.com/arendst/Sonoff-Tasmota/issues/799#issuecomment-387512711,
or mute the thread
https://github.com/notifications/unsubscribe-auth/AlSigDst19eOA7IUKka8WsuP705vK23nks5twe-1gaJpZM4PDyOq
.

[lukesaber]

I don't want to get into gritty what-if's before covering the basics...

When you say you connected your wall switch to the gpio, was the other side
of the wall switch connected to mains voltage or the ground potential of
the sonoff?

Brad

On Tue, May 8, 2018, 15:11 kamenyev, [e-mail] wrote:

Hello,

I just tried the above mentioned way to connect a "regular" wall switch to
GPIO14 on a Sonoff Basic. After saving the changes in the Module Config
(set GPIO14 to 09 Switch1) the led/relay went off and since then no
response from the board.

I tried to re-flash with platformIO, and it seemingly succeeded, but still
no sign of life. No WiFi, and no button response.
Does anyone have an ide what could the reason be?

Thanks in advance.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
https://github.com/arendst/Sonoff-Tasmota/issues/799#issuecomment-387510724,
or mute the thread
https://github.com/notifications/unsubscribe-auth/AUKco_sgg-W-ImCElpCVh-jEnIlqHInxks5twe31gaJpZM4PDyOq
.

[kamenyev]

This wall switch was never connected to mains. The connection was made between GPIO14 and GND (adjecent) pins on the added header. The Fradinak egy I called it wall switch is to make the impression that it is a switch, not a push button.

Btw. I found this SMD component soldered accross two (for me unknown) pins on the back side of the PCB. Non of my previous boards had it.

Regards,
Peter

[nhorvath]

Neither of the 2 on my desk have that on it. It appears to be a capacitor... no idea what it is doing there.

[lukesaber]

Two suggestions as I can't look at the image on my phone, I'll have to look
at home...

Add a pull up resistor to the gpio pin from 3v, this will give it a default
state when the switch is not grounding the gpio.

Also, put in a small value capacitor across the gnd/gpio line.

I used a bunch of these as three way switches with the switch about 40'
away, kept getting nuisance on/off events or flickering. Capacitor solved
it.

Good luck!

Brad

On Sat, May 12, 2018, 04:20 kamenyev, [e-mail] wrote:

This wall switch was never connected to mains. The connection was made
betegen GPIO14 and GND. Adj éven t pins on the added header. The Fradinak
egy I called it wall switch is to make the impression that it is a switch,
not a push button.

Btw. I found this SMD component soldered accross two (for me unknown) pins
on the back side of the PCB. Non of my previous boards had it. [Image]

---

From: lukesaber [e-mail]
Sent: Saturday, May 12, 2018 6:39
Subject: Re: [arendst/Sonoff-Tasmota] GPIO14 as normal wall switch (#799)
To: arendst/Sonoff-Tasmota [e-mail]
Cc: kamenyev [e-mail], Comment <
[email protected]>

I don't want to get into gritty what-if's before covering the basics...

When you say you connected your wall switch to the gpio, was the other side
of the wall switch connected to mains voltage or the ground potential of
the sonoff?

Brad

On Tue, May 8, 2018, 15:11 kamenyev, [e-mail] wrote:

Hello,

I just tried the above mentioned way to connect a "regular" wall switch
to
GPIO14 on a Sonoff Basic. After saving the changes in the Module Config
(set GPIO14 to 09 Switch1) the led/relay went off and since then no
response from the board.

I tried to re-flash with platformIO, and it seemingly succeeded, but
still
no sign of life. No WiFi, and no button response.
Does anyone have an ide what could the reason be?

Thanks in advance.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
<
https://github.com/arendst/Sonoff-Tasmota/issues/799#issuecomment-387510724
,
or mute the thread
<
https://github.com/notifications/unsubscribe-auth/AUKco_sgg-W-ImCElpCVh-jEnIlqHInxks5twe31gaJpZM4PDyOq

.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub<
https://github.com/arendst/Sonoff-Tasmota/issues/799#issuecomment-388529458>,
or mute the thread<
https://github.com/notifications/unsubscribe-auth/AlSigOtnp2cC_bVxZADuaGkj92Ir6rEuks5txmeYgaJpZM4PDyOq

.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
https://github.com/arendst/Sonoff-Tasmota/issues/799#issuecomment-388539248,
or mute the thread
https://github.com/notifications/unsubscribe-auth/AUKco0EUdEpSOheyRNMzJKZLzroil4LNks5txpswgaJpZM4PDyOq
.

[nhorvath]

GPIO 14 has an internal pull up. The pull up resistor should not be
necessary. The cap will help with any bounce in the contacts nor noise on
the line though.

On Sat, May 12, 2018 at 6:36 PM, lukesaber [e-mail] wrote:

Two suggestions as I can't look at the image on my phone, I'll have to look
at home...

Add a pull up resistor to the gpio pin from 3v, this will give it a default
state when the switch is not grounding the gpio.

Also, put in a small value capacitor across the gnd/gpio line.

I used a bunch of these as three way switches with the switch about 40'
away, kept getting nuisance on/off events or flickering. Capacitor solved
it.

Good luck!

Brad

On Sat, May 12, 2018, 04:20 kamenyev, [e-mail] wrote:

This wall switch was never connected to mains. The connection was made
betegen GPIO14 and GND. Adj éven t pins on the added header. The Fradinak
egy I called it wall switch is to make the impression that it is a
switch,
not a push button.

Btw. I found this SMD component soldered accross two (for me unknown)
pins
on the back side of the PCB. Non of my previous boards had it. [Image]

---

From: lukesaber [e-mail]
Sent: Saturday, May 12, 2018 6:39
Subject: Re: [arendst/Sonoff-Tasmota] GPIO14 as normal wall switch (#799)
To: arendst/Sonoff-Tasmota [e-mail]
Cc: kamenyev [e-mail], Comment <
[email protected]>

I don't want to get into gritty what-if's before covering the basics...

When you say you connected your wall switch to the gpio, was the other
side
of the wall switch connected to mains voltage or the ground potential of
the sonoff?

Brad

On Tue, May 8, 2018, 15:11 kamenyev, [e-mail] wrote:

Hello,

I just tried the above mentioned way to connect a "regular" wall switch
to
GPIO14 on a Sonoff Basic. After saving the changes in the Module Config
(set GPIO14 to 09 Switch1) the led/relay went off and since then no
response from the board.

I tried to re-flash with platformIO, and it seemingly succeeded, but
still
no sign of life. No WiFi, and no button response.
Does anyone have an ide what could the reason be?

Thanks in advance.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
<
https://github.com/arendst/Sonoff-Tasmota/issues/799#
issuecomment-387510724
,
or mute the thread
<
https://github.com/notifications/unsubscribe-auth/AUKco_sgg-W-ImCElpCVh-
jEnIlqHInxks5twe31gaJpZM4PDyOq

.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub<
https://github.com/arendst/Sonoff-Tasmota/issues/799#
issuecomment-388529458>,
or mute the thread<
https://github.com/notifications/unsubscribe-auth/AlSigOtnp2cC_
bVxZADuaGkj92Ir6rEuks5txmeYgaJpZM4PDyOq

.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
issuecomment-388539248>,
or mute the thread
AUKco0EUdEpSOheyRNMzJKZLzroil4LNks5txpswgaJpZM4PDyOq>

.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
https://github.com/arendst/Sonoff-Tasmota/issues/799#issuecomment-388588098,
or mute the thread
https://github.com/notifications/unsubscribe-auth/AAKE3I1AUiT9tDYCk5ybYwnXYYRf1nyfks5tx2PRgaJpZM4PDyOq
.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue will be auto-closed because there hasn't been any activity for a few months. Feel free to open a new one if you still experience this problem.

[devianpctek]

I'm going to answer my own question.
In Module Config set GPIO14 to 09 Switch1
Set switch 1 to PUSHBUTTON_TOGGLE mode, which can be done by opening this url in a browser:
http://[ip address of sonoff]/cm?cmnd=SwitchMode1%207
if you have admin password set:
http://[ip address of sonoff]/cm?user=admin&password=[password]&cmnd=SwitchMode1%207

Toggling the switch sends the appropriate MQTT message and toggles the relay.

Great, thanks, I was struggling to get my sonoffs working with a regular switch, now is working fine 😁