Sonoff switch

[shenery]

Do you think this code could modified to work with the sonoff switch. http://blog.squix.org/2016/01/esp8266-products-hitting-market.html

It has 1M of flash and uses esp8266

[shenery]

Or do you think it will just work? I'm getting one to test in the next couple of weeks.

[joeman2116]

It works fine on a sonoff. I just used the arduino ide software to program it - I used the nodemcu.9v on the arduino type - I use them with the alexa echo dot

Great pieces of software...

Joe

[shenery]

I received 4 today and had a quick go. Using arduino I had it on generic esp8266 board and 1m flash. I changed the relay pin to pin 12 in the code and was getting error esp com mem failed or something like that. Was the pin number all you changed? And do I have to change the board type to nodemcu 9v and that will be me sorted? Really excited about this. An Alexa switch for £5! :-)

[shenery]

I used a fdti 3.3v

[joeman2116]

I also use a ftdi 3.3v as the programmer.
I tried type as a generic 1meg flash but got reboot problems.
So I used the nodemcu.9 choice.

Change the ssid
Change password
Change device name to (your choice)

Pins
I use d6 for the relay and d7 for the led.(optional)

Joe

On Mon, Nov 14, 2016 at 6:12 PM, shenery notifications@github.com wrote:

I used a fdti 3.3v

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[joeman2116]

The esp mem code error -likely means your device is not in flash mode

TO flash:

Press and hold the button, do not release: while holding it down, plug in
the programmer, then release button.

Joe

On Mon, Nov 14, 2016 at 6:49 PM, joe basque joeman2116@gmail.com wrote:

I also use a ftdi 3.3v as the programmer.
I tried type as a generic 1meg flash but got reboot problems.
So I used the nodemcu.9 choice.

Change the ssid
Change password
Change device name to (your choice)

Pins
I use d6 for the relay and d7 for the led.(optional)

Joe

On Mon, Nov 14, 2016 at 6:12 PM, shenery notifications@github.com wrote:

I used a fdti 3.3v

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[shenery]

Ok thanks for the advice. I will give it a try today.

Cheers
Steven

[shenery]

I tried nodemcu 0.9 esp-12. 1m spiffs and I'm still getting error mem esp com failed. Also d6 doesn't work for me. Isn't the relay gpio 12? It doesn't even compile when I have it as d6 but when I change to 12 it compiles fine.

[joeman2116]

D6 not d6 - my mistake gpio12 is D6

Ok, mem esp error - well that is a serial comm problem which means unit is
not in pgm mode or your wire of the tx and rx pins on your ftdi may not be
correct to the sonoff.

I leave the nodemcu .9 at 3m spiffs but 1meg is fine... The error your
displaying is not related to those selections.

It is a communication issue related to wiring and or not in correct mode to
flash.

Joe

On Tue, Nov 15, 2016 at 3:46 AM, shenery notifications@github.com wrote:

I tried nodemcu 0.9 esp-12. 1m spiffs and I'm still getting error mem esp
com failed. Also d6 doesn't work for me. Isn't the relay gpio 12? It
doesn't even compile when I have it as d6 but when I change to 12 it
compiles fine.

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[shenery]

Ok so I've been spending a bit more time on this. I have all your settings loaded. I have a fT232RL ftdi like this on http://m.ebay.co.uk/itm/Latest-Version-FT232BL-FTDI-USB-to-TTL-Serial-Adapter-for-Arduino-UK-Seller-/181797979805?nav=SEARCH connected to the sonoff. All wires connected and have been checked numerous times. I have it plugged into my tablet via USB otg and I have also tried through a powered USB hub and I am still getting the espcomm mem failed error. I occasionally get a java lang nullpointerexception error as well. Do you think it could be a power supply issue? Kind regards
Steven

[shenery]

Also I press the button on the sonos and keep holding it until I plug it in to the tablet and there is no blinking led. I assume that's me in flash mode?

[joeman2116]

It still appears your system is not in flash mode.
Your steps look fine.

1. Make sure you have selected the correct serial port.. Check windows
   system manager under com ports.
   2 Make sure the serial monitor is not open.

Joe

On Thu, Nov 17, 2016, 1:52 PM shenery notifications@github.com wrote:

Also I press the button on the sonos and keep holding it until I plug it
in to the tablet and there is no blinking led. I assume that's me in flash
mode?

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[joeman2116]

The powersupply will not usually be a problem when doing a flash
It mostly acts up when the esp8266 is running and using the sotware and
wifi.

For your programmer, tx am rx are the typical error area. If all fails
revese the tx and rx wires
Programming note:
Vcc 3.3v
Gnd
Tx
Rx
Are the only wires required.

Joe

On Thu, Nov 17, 2016, 2:20 PM joe basque joeman2116@gmail.com wrote:

It still appears your system is not in flash mode.
Your steps look fine.

1. Make sure you have selected the correct serial port.. Check windows
   system manager under com ports.
   2 Make sure the serial monitor is not open.

Joe

On Thu, Nov 17, 2016, 1:52 PM shenery notifications@github.com wrote:

Also I press the button on the sonos and keep holding it until I plug it
in to the tablet and there is no blinking led. I assume that's me in flash
mode?

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[shenery]

I've tried all of that. Jumper is on the 3.3v. Vcc is the 3.3v. Checked in device manager which com port is recognised when I connect. Serial monitor window not opened. I saw on this forum that some people were getting the same error and fixed it with clearing the flash with esptool before flashing the new firmware? Do you have any experience with this? I can't see esptool in the programmer of arduino ide.

[shenery]

Sorry forgot to post the forum. http://tech.scargill.net/itead-slampher-and-sonoff/