New ESP8285 based 1Channel Inching/Locking 5V/12V Sonoff #453

ed1402 · 2017-05-15T18:05:37Z

Hi All,

I just took possession of the above new device that appears to be the new version of the old device - the pics on the Itead website has not even been updated.

This board is based on the PSF-B01 itead ESP8285 module.

I have not found any custom firmware yet that appears to work - not Tasmota, ESPEasy or Espurna seems to work.

Using Tasmota it uploads fine with success flag - but this basically puts the module in an endless switch loop with no connection to wifi as setup in config file.

Anyone have any info?

Regards,
Ed

xinghusp · 2017-05-16T10:52:41Z

Hi,
I have in the same trouble.i just brought the sonoff touch few days ago,and i tried to flash the custom firmware and can't boot to the os anymore.and the serial port didn't have any output message.the wifi cannot connect and the led of the board don't blink anymore.

sebastianlorenzen · 2017-05-16T14:53:19Z

This Device: https://www.itead.cc/smart-home/inching-self-locking-wifi-wireless-switch.html
And probably this: https://www.itead.cc/sonoff-4ch-pro.html

ed1402 · 2017-05-16T15:14:52Z

Yes albeit not the same as in the 1 channel device photo. That indicates an ESP8266 unit. Mone is ESP8285 based.

xinghusp · 2017-05-16T16:14:32Z

The sonoff touch of mine is based on the PSF-A01 itead ESP8285 module.

ed1402 · 2017-05-16T19:07:23Z

Some pics:

ed1402 · 2017-05-17T07:00:18Z

OK - so I have managed to flash the unit with Arduino IDE on latest Tasmota.

I can access the web interface after restart, but the device now shows odd behaviour.
As far as I can establish the actual locking/inching function is controlled externally to the ESP8285.

When in locking mode the device acts normally as a switch, but when in inching mode and the device is either trigger by button press or web toggle it goes into a 10 second flip flop (switching on and off repeatedly) and then hangs. After a restart the device is frozen still and I have to re-flash firmware to get it active again.

I have tried multiple device selections in the device setup (Basic, Slampher, 1 Channel and both 4 channel options.)

My assumption is that the "on" command trigger a gpio either high or low and that the external inching function sends a signal back to the ESP8285 to switch off the trigger gpio. With the new firmware this does not happen and as such the device "loops" and eventually somehow corrupts the ESP8285.

Open to any ideas?

davidelang · 2017-05-17T07:12:09Z

tasmota has never supported the inching functionality of this board. k

paco-ita · 2017-05-19T22:06:17Z

Hello everybody!
I have received the exact same product but I can't figure out how to put it into flash mode.
Any advice?
Thanks

apouzin · 2017-06-11T06:52:54Z

Hi,
I am also using the same device and struggling on putting the device into flash mode (not sure about the wirings nor the procedure for setting it up into flash mode). Any advice/help would be appreciated ! Thanks

jktz90 · 2017-06-19T16:31:43Z

Using Arduino (Ground to RST): on the PSFB01 you need to pull GPIO2 to Ground before Powerup and afterwards connect RX TX // TX RX using your Arduino. In my case there was no pinout on the PCB whatsoever, so I had to solder it directly on the PSFB01

zizebra · 2017-07-09T13:11:25Z

I can only assume this device is probably the latest effort from Itead to try and stop us from using custom firmware. the relay is seem to be driven by the stc15w204s.

levonbragg · 2017-07-11T07:26:09Z

I was able to get this sort of working... (See attached picture) I had to remove 1 IC to stop the bouncing of the relay and bridge 2 of the empty pads. Also, need to add a pull-up resistor as indicated in the pic to make the button work after removing the IC.
I tried all tasmota configurations, and it would not work.
I was able to get it working using this firmware
https://github.com/KmanOz/Sonoff-HomeAssistant
So, at least it works now, but maybe someone smarter than I can modify the tasmota firmware (which I like better) to make it work.

zizebra · 2017-07-11T08:17:13Z

Brilliant stuff. Didn't think about that. Will try that and see if it helps.

arendst · 2017-07-11T08:42:54Z

The devices discussed in this issue are based on the esp8285 chip while the original device used the esp8266 chip. The main difference is the way flash is addressed and loading the default sonoff firmware on these devices will probably NOT work unless you take the following steps:

Initially load tasmota firmware file sonoff-touch-4ch-bnsz.bin or compile your own using the DOUT flash mode.
Open the configuration webpage (or use serial commands) to select module 12 1 Channel
If things are as I expect it should now work like a standard 1 channel inching device

zizebra · 2017-07-11T13:27:30Z

Mine is definitely esp8285. That is the one I compiled and loaded on mine. I believe I tried the 1 channel and the behavior was not perfect. In my case, I noted that when using the inching method, it would work perfectly as expected but with one issue. I could turn on or off generally about 5 times in row. Thereafter, the next 2 or 3 attempts would not have effect.
I will test again just to verify that your suggested options works on this device.

zizebra · 2017-07-11T13:28:31Z

levonbragg, do you still have the IC number for the chip you removed.

levonbragg · 2017-07-11T15:37:24Z

zizebra, I do not. All of mine are blank. Looks like they were rubbed off.
After digging around, it looks like a STC15F101W series 8051 micro...

zizebra · 2017-07-11T16:16:50Z

Hope itead is not trying to revive the useless ESP8266 Black board T5

levonbragg · 2017-07-11T17:24:27Z

arendst,
I can confirm that after adding the pullup resistor, and loading the module with the sonoff-touch-4ch firmware, and setting it to "12 1 Channel" that the board seems to be working great.
Thanks for the help!

zizebra · 2017-07-11T17:57:50Z

arendst, on my end there is no joy. I still see the behavior where some commands will have no effect. it usually takes up to 4 commands to get a response. thereafter the next 4-5 commands works before it stops responding again. below is a trace from webconsole. the highlighted power on commands did not work

arendst · 2017-07-11T18:04:59Z

@zizebra you have a MQTT server problem. This causes delays in command processing. If you fail to connect the MQTT server execute command mqttretry 60 to make more room for command processing.

zizebra · 2017-07-11T18:28:53Z

thank you., I didn't think that to be the problem. My sd card for my PI packed up before I received this device. I will re-install the mqtt server and test

zizebra · 2017-07-13T10:36:32Z

I manage to reinstall my PI yesterday. However could not test, because my sonoff kept trying to connect to the mqtt server provided in the code instead of my custom one. It will usually connect to the correct one after a couple of hours. I hope to have a good test later on.

zizebra · 2017-07-13T19:21:23Z

Finally managed to test. It is definitely working perfectly with mqtt. One minor issue which I picked up is that after loading firmware, the relay default is activated. When I choose 1ch on configuration. The relay is changed to default off. Occasionally when the sonoff restarts, the relay is activated momentarily before being Switch off. Does any one have a quick workaround for this. I would like the relay start default off throughout the reboots.

5.3.0 20170715 * Major Hue rewrite which might introduce Alexa problems. If so, initiate an issue * Add support for Sonoff Led and BN-SZ01 Ceiling Led brightness control to Hue * Fix Sonoff Led Power, Dimmer and Color MQTT response (#176) * Add commands Delay and Backlog to allow multiple commands at once separated by ";" (#593) * Use default flashmode DOUT to solve restart hangs on esp8285 chips (#453, #598) * Change Web console column width from 99 to 300 (#599)

jktz90 · 2017-08-07T15:58:03Z

You can simply use this wiring (if you have someone to help you, you dont neet so solder).
If you use an arduino to flash: connect GROUND with RESTART on your Arduino, select ESP 8285(!) in Arduino IDE and you are good to go.

moonfarms · 2017-08-08T16:43:43Z

hello jktz90, please if I connect my usb to uart like this it does overheat very fast, so instead I am powering the sonoff from his own usb and connecting tx rx and Ground of module to my usb to uart but I get eeprom error, I also not sure that ESP goes into Flash mode (i assume rx pin is #5 from bottom on the image and I assume the connect to ground is the second pin from left on the bottom row of connectors. Your help greatly appreciated

jktz90 · 2017-08-08T17:00:12Z

You probably plugged Ground/3V the wrong way around. You can definitely use your adapter to power the Sonoff.
Try switching RX with TX, the 5th pin from the button (where the red line points to) has to be connected to TX on your adapter.

Before you power up the Sonoff, you have to pull the pin out in the bottom to Ground (I don't have the official datasheet anymore) in order to force flash mode (I can't remember how exactly but the LED blinked differently to indicate the flash mode).

moonfarms · 2017-08-08T17:04:07Z

3v is the square pin one (blue wire on your pic) isn it? please what pin on your pic has to go to ground to enable flash

meingraham · 2019-08-12T14:30:45Z

Check the wiki FAQ entry on ghosting.

Please address your questions to the Tasmota Support Discord Chat. The chat is a better and more dynamic channel for helping you. Github issues are best used for Tasmota software feature requests and bug reporting. Troubleshooting and setup assistance is more effective using an interactive forum.

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

ryaske · 2019-11-03T18:42:33Z

I wanted to reopen this (it can be immediately reclosed) JUST because I know of no other place to post this valuable information, and in my pursuit of the information I found no other place online where it is properly discussed!!

Here is how to flash your PSF-B01.
NO HARDWARE MODIFICATIONS ARE NECESSARY.
(Note I have the AC/DC 7-32V module and I will be using it as a thermostat override to power on my HVAC fan using sonoff. This should work fine for the other version on this thread too)

Use this pinout;

Use this flash boot method (press both buttons while powering it. Both LEDs need to come on.

You can flash Tasmota now.

Once booted, set it to module "1 channel (12)" in the included module list (no external template is needed).

VERY IMPORTANT
SetOption13 1

This will disable the "triple press" functionality that usually reboots ESP8266 into SmartConfig Mode.

After that, you can select via the hardware button if you want inching or locking latch, and you are good to go!

I hope this message saves someone A LOT of time. I took me quite a while to figure out why the module was going haywire.

Pingbo · 2020-01-31T16:23:39Z

Seems like i have another new layout ...

Tried several things to enter Flash Mode, without luck:

Pushed both buttons and connect USB --> No LED will tun on
Connected GPIOO with GND of PI --> Devies is starting as usual ( 1 LED is blinking )
Tried some Pins on the bottom (the right and left one) ---> right: No LED, left: booting up as usual

Does someone have an idea?

negmos · 2020-02-21T18:23:28Z

Seems like i have another new layout ...

Tried several things to enter Flash Mode, without luck:

Pushed both buttons and connect USB --> No LED will tun on

Connected GPIOO with GND of PI --> Devies is starting as usual ( 1 LED is blinking )

Tried some Pins on the bottom (the right and left one) ---> right: No LED, left: booting up as usual

Does someone have an idea?

I have same board aslo.. did you find a way to flash it?

dwetchells · 2020-02-22T15:45:55Z

Hi. From what seen on google you make soldering connections on the PSF-BO1 chip. Connecting tx & rx Pins 3 & 4 on the top right side near the buttons. Just google Flash PSF-B01. Lots of articles on this

…

Sent from my iPad On Feb 21, 2020, at 11:23 AM, Mohamed Negm <notifications@github.com> wrote: Seems like i have another new layout ... [IMG_20200131_171510]<https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fuser-images.githubusercontent.com%2F7976657%2F73555428-e8600980-444d-11ea-8d63-254fa4ed1dde.jpg&data=02%7C01%7C%7C01f8b8f5fd9041b527e408d7b6fb28d6%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637179062140012195&sdata=XnWgiCSvCKIHX2AIE%2Bf1YE9XJGAxkKcjqxA68yCKQYQ%3D&reserved=0> Tried several things to enter Flash Mode, without luck: 1. Pushed both buttons and connect USB --> No LED will tun on 2. Connected GPIOO with GND of PI --> Devies is starting as usual ( 1 LED is blinking ) 3. Tried some Pins on the bottom (the right and left one) ---> right: No LED, left: booting up as usual Does someone have an idea? I have same board aslo.. did you find a way to flash it? — You are receiving this because you commented. Reply to this email directly, view it on GitHub<https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Farendst%2FTasmota%2Fissues%2F453%3Femail_source%3Dnotifications%26email_token%3DAJTJEZH3BHFZRJOFMYYWFJDREAL2JA5CNFSM4DLN6EFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEMTTYSA%23issuecomment-589773896&data=02%7C01%7C%7C01f8b8f5fd9041b527e408d7b6fb28d6%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637179062140022205&sdata=uJlMXDygzh7xaw9lV0H%2F5aIj6rgzWRpuRSrz3xfabg4%3D&reserved=0>, or unsubscribe<https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAJTJEZBZF3UGHRY4TQPCZELREAL2JANCNFSM4DLN6EFA&data=02%7C01%7C%7C01f8b8f5fd9041b527e408d7b6fb28d6%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637179062140032210&sdata=%2BmB%2FO%2FSKfdPURvXG3kTx4jvZBMUEGUx%2BOd%2Fq%2FGJKv0g%3D&reserved=0>.

armdan · 2020-04-21T03:45:11Z

Once booted, set it to module "1 channel (12)" in the included module list (no external template is needed).

VERY IMPORTANT
SetOption13 1

This will disable the "triple press" functionality that usually reboots ESP8266 into SmartConfig Mode.

thank you SOOOOO much for "SetOption13 1" fixed my all problems

Emile7 · 2020-07-16T13:58:32Z

Hello I plan to add an external antenna for the attached board. Does anyone know where to solder the external antenna lead?

lalo-uy · 2020-07-16T15:02:29Z

A picture of the bottom may help. El jue., 16 jul. 2020 a las 10:59, Emile7 (<notifications@github.com>) escribió:

…

Hello I plan to add an external antenna for the attached board. Does anyone know where to solder the external antenna lead? [image: 7c09ea96-3a7b-11e7-8498-f53947794f2f] <https://user-images.githubusercontent.com/68385687/87679715-2d21f780-c785-11ea-8fc6-cecaa6870bf5.jpg> — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#453 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACXBW4PGZE4XKGB54G2KF7LR34BS7ANCNFSM4DLN6EFA> .

Emile7 · 2020-07-17T04:16:47Z

A picture of the bottom may help. El jue., 16 jul. 2020 a las 10:59, Emile7 (notifications@github.com) escribió:
…
Hello I plan to add an external antenna for the attached board. Does anyone know where to solder the external antenna lead? [image: 7c09ea96-3a7b-11e7-8498-f53947794f2f] https://user-images.githubusercontent.com/68385687/87679715-2d21f780-c785-11ea-8fc6-cecaa6870bf5.jpg — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#453 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACXBW4PGZE4XKGB54G2KF7LR34BS7ANCNFSM4DLN6EFA .

lalo-uy · 2020-07-17T11:50:31Z

That module has a ceramic antena, the white component in the corner. You may need to remove it in order to attach a different one. Youcan connect also connect on module pin 1. El El vie, 17 de jul. de 2020 a la(s) 01:17, Emile7 < notifications@github.com> escribió:

…

A picture of the bottom may help. El jue., 16 jul. 2020 a las 10:59, Emile7 ***@***.***) escribió: … <#m_7834619719896913155_m_8465963238316833967_> Hello I plan to add an external antenna for the attached board. Does anyone know where to solder the external antenna lead? [image: 7c09ea96-3a7b-11e7-8498-f53947794f2f] https://user-images.githubusercontent.com/68385687/87679715-2d21f780-c785-11ea-8fc6-cecaa6870bf5.jpg — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#453 (comment) <#453 (comment)>>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACXBW4PGZE4XKGB54G2KF7LR34BS7ANCNFSM4DLN6EFA . [image: back] <https://user-images.githubusercontent.com/68385687/87748007-76ae2900-c7fd-11ea-9cce-c9b5c07f2444.jpeg> — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#453 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACXBW4IY2SWXXL4FNDVTE7DR37GD5ANCNFSM4DLN6EFA> .

Emile7 · 2020-07-17T16:31:24Z

That module has a ceramic antena, the white component in the corner. You may need to remove it in order to attach a different one. Youcan connect also connect on module pin 1. El El vie, 17 de jul. de 2020 a la(s) 01:17, Emile7 < notifications@github.com> escribió:
…
A picture of the bottom may help. El jue., 16 jul. 2020 a las 10:59, Emile7 @.***) escribió: … <#m_7834619719896913155_m_8465963238316833967_> Hello I plan to add an external antenna for the attached board. Does anyone know where to solder the external antenna lead? [image: 7c09ea96-3a7b-11e7-8498-f53947794f2f] https://user-images.githubusercontent.com/68385687/87679715-2d21f780-c785-11ea-8fc6-cecaa6870bf5.jpg — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#453 (comment) <#453 (comment)>>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACXBW4PGZE4XKGB54G2KF7LR34BS7ANCNFSM4DLN6EFA . [image: back] https://user-images.githubusercontent.com/68385687/87748007-76ae2900-c7fd-11ea-9cce-c9b5c07f2444.jpeg — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#453 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACXBW4IY2SWXXL4FNDVTE7DR37GD5ANCNFSM4DLN6EFA .

You mean connect to pin1 without removing the ceramic antenna?

lalo-uy · 2020-07-18T11:27:54Z

No, that will produce an impedance mismatching. Antenas are tricky to adapt. Yor external one may be different impedance than the ceramic one. You will need to adjust with a LC netwok. El El vie, 17 de jul. de 2020 a la(s) 13:31, Emile7 < notifications@github.com> escribió:

…

That module has a ceramic antena, the white component in the corner. You may need to remove it in order to attach a different one. Youcan connect also connect on module pin 1. El El vie, 17 de jul. de 2020 a la(s) 01:17, Emile7 < ***@***.***> escribió: … <#m_7700677667163616990_> A picture of the bottom may help. El jue., 16 jul. 2020 a las 10:59, Emile7 *@*.***) escribió: … <#m_7834619719896913155_m_8465963238316833967_> Hello I plan to add an external antenna for the attached board. Does anyone know where to solder the external antenna lead? [image: 7c09ea96-3a7b-11e7-8498-f53947794f2f] https://user-images.githubusercontent.com/68385687/87679715-2d21f780-c785-11ea-8fc6-cecaa6870bf5.jpg — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#453 <#453> (comment) <#453 (comment) <#453 (comment)>>>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACXBW4PGZE4XKGB54G2KF7LR34BS7ANCNFSM4DLN6EFA . [image: back] https://user-images.githubusercontent.com/68385687/87748007-76ae2900-c7fd-11ea-9cce-c9b5c07f2444.jpeg — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#453 (comment) <#453 (comment)>>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACXBW4IY2SWXXL4FNDVTE7DR37GD5ANCNFSM4DLN6EFA . You mean connect to pin1 without removing the ceramic antenna? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#453 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACXBW4NNSUAHEGCTRIB3SILR4B4G5ANCNFSM4DLN6EFA> .

lb4207 · 2020-07-19T02:40:44Z

I hope this message saves someone A LOT of time. I took me quite a while to figure out why the module was going haywire.

Thanks ryaske for the information on that version of the board.
I'm about to flash mine but it needs a very fine pointed soldering iron and a steady hand to solder onto the pads by the chip. Don't the Rx and Tx appear anywhere else on the board?

PS. I've had a look at the datasheet for the ESP8285 and it shows both pins 14 and 26 as Tx during flash programming and pin 25 as Rx during flash programming which is different to what you show.

pbouna321 · 2020-08-14T12:04:49Z

Seems like i have another new layout ...

Tried several things to enter Flash Mode, without luck:

Pushed both buttons and connect USB --> No LED will tun on

Connected GPIOO with GND of PI --> Devies is starting as usual ( 1 LED is blinking )

Tried some Pins on the bottom (the right and left one) ---> right: No LED, left: booting up as usual

Does someone have an idea?

I have same board aslo.. did you find a way to flash it?

Same, can't find much on this version.

KBrownConsulting · 2020-08-14T13:00:28Z

Seems like i have another new layout ...

Tried several things to enter Flash Mode, without luck:

Pushed both buttons and connect USB --> No LED will tun on

Connected GPIOO with GND of PI --> Devies is starting as usual ( 1 LED is blinking )

Tried some Pins on the bottom (the right and left one) ---> right: No LED, left: booting up as usual

Does someone have an idea?

I have same board aslo.. did you find a way to flash it?

Same, can't find much on this version.

I'll admit, these boards are a pain to flash because you have to connect directly to the chip, but there's a bunch of info on this board, pictures and all in this very thread...? I just flashed 4 of them this week using info mostly from here...

As far as getting it into flashing mode, that's actually quite easy once you know what to do:

Simply hold down BOTH buttons as you power up the device. If you hold the buttons down long enough (about 3-5 sec), when you release them the board will automatically be in flashing mode. You can tell the board is ready to be flashed if the red LED next to the blue relay & the LED next to the button closer to the edge of the board are on steady/solid red. If you don’t hold the buttons down long enough or immediately release them after powering the board up, the relay will toggle on & off repeatedly and the LED will slowly flash matching the state of the relay. In this case simply press the button closer to the edge of the circuit board once & it will put the board into flash mode.

Here’s a quick YouTube video (not mine) showing how to easily get the board into flashing mode.

Now actually getting a successful flash once it's in flashing mode can still be a royal pain in my experience if you're just hand holding pins to the chip. I literally had to make around 30 attempts on one of the boards I flashed. The Tasmotizer software simply wasn't detecting the board so wouldn't start flashing. Not sure what the problem was as 2 of the others I flashed worked first try.

After you've got the board flashed you can get it working properly in Tasmota by simply going to Configure Module & selecting Module: 1 Channel (12)

There's no need to configure a template as best I can tell so I haven't tested it, but if you do want to configure a template (instead of using the Module method) then here's the template you should probably check out: 1 Channel Inching/Self-Locking Relay (Even though the pictures are different this should be the same device. You'll notice at the bottom they link to the same video I did above.)

The last important thing about this device that I've discovered but have not seen well documented is that even after you've got Tasmota loaded, the mode button (closer to the edge of the device) still toggles the device between a hardware based inching vs self-locking mode.

Importantly, if you want to use the Tasmota "PulseTime" command (basically a software controlled inching mode) it appears the device MUST be in self-locking mode. (The LED by the mode button should be ON.)

Hope that helps.

pbouna321 · 2020-08-14T16:17:40Z

I'll admit, these boards are a pain to flash because you have to connect directly to the chip, but there's a bunch of info on this board, pictures and all in this very thread...? I just flashed 4 of them this week using info mostly from here...

Hey KBrown, If you follow the thread you will see there appears to be two different versions of this board. The one quoted here from OP does not contain the 4 pins as shown in the image below.

This is the board he was talking about, and the board I have. There is no 3v pin.

KBrownConsulting · 2020-08-14T22:39:39Z

I'll admit, these boards are a pain to flash because you have to connect directly to the chip, but there's a bunch of info on this board, pictures and all in this very thread...? I just flashed 4 of them this week using info mostly from here...

Hey KBrown, If you follow the thread you will see there appears to be two different versions of this board. The one quoted here from OP does not contain the 4 pins as shown in the image below.

This is the board he was talking about, and the board I have. There is no 3v pin.

You're right, I did overlook that detail, sorry! But even so... As long as the main chip hasn't changed (which it doesn't look like it has) I wouldn't expect the flashing procedure to change any... You shouldn't need any of those holes. I didn't use any of them for flashing.

silmaril464 · 2020-08-22T18:18:32Z

Seems like i have another new layout ...

Tried several things to enter Flash Mode, without luck:

Pushed both buttons and connect USB --> No LED will tun on

Connected GPIOO with GND of PI --> Devies is starting as usual ( 1 LED is blinking )

Tried some Pins on the bottom (the right and left one) ---> right: No LED, left: booting up as usual

Does someone have an idea?

I have same board aslo.. did you find a way to flash it?

Same, can't find much on this version.

hi! i am in same situation, i have de same board.
Any news about this?

pbouna321 · 2020-08-22T20:51:59Z

Seems like i have another new layout ...

Tried several things to enter Flash Mode, without luck:

Pushed both buttons and connect USB --> No LED will tun on

Connected GPIOO with GND of PI --> Devies is starting as usual ( 1 LED is blinking )

Tried some Pins on the bottom (the right and left one) ---> right: No LED, left: booting up as usual

Does someone have an idea?

I have same board aslo.. did you find a way to flash it?

Same, can't find much on this version.

hi! i am in same situation, i have de same board.
Any news about this?

Not that I am aware of. I ended up returning mine to Amazon and getting a D1 Mini with Relay Shield, I actually got 2 for the same price as this board. Plugged in via USB and flashed with Tasmota, so much easier than trying to mess with this board.

h3ld3rkid · 2020-08-25T22:18:52Z

Ppl. Its possible flash this esp, i cant find tje layout scheme... thnkx

armdan · 2020-08-25T22:27:55Z

yes, it is. Look above posts

h3ld3rkid · 2020-08-26T13:20:57Z

yes, it is. Look above posts

Mine doenst.t have the little holes to gbd and 3.3v if you see

cadavre · 2020-09-16T20:04:10Z

Anyone tried to connect ds18b20 (or any other) temperature sensor to this board?

Looks like no GPIOx is connected to the pins so only way is to connect straight into ESP? Which pin, any suggestions?

CirrusSR22Joe · 2020-10-18T14:55:31Z

The WiFi module is actually an ESP8285 SMT Module

CirrusSR22Joe · 2020-10-18T14:59:13Z

I think it is an ESP-M1

ukd4ve · 2020-12-20T21:14:44Z

yes, it is. Look above posts

Mine doenst.t have the little holes to gbd and 3.3v if you see

My board looks like yours too. I managed to flash it by soldering 4 wires to the contacts on the little board PSF-B01 board.

The pinouts from here helped:
https://www.hagensieker.com/wordpress/2019/02/08/flashing-single-channel-inching-relay-sonoff-with-tasmota/
And when I connected it to my computer to flash it with Tasmotizer, I used this method to get it into flashing mode:
https://www.youtube.com/watch?v=E0WBoFCcnYY

Soldering the 4 small contacts in a row was a bit tricky, but it worked nicely.

hhaim · 2021-08-09T15:48:29Z

I was able to get this sort of working... (See attached picture) I had to remove 1 IC to stop the bouncing of the relay and bridge 2 of the empty pads. Also, need to add a pull-up resistor as indicated in the pic to make the button work after removing the IC.
I tried all tasmota configurations, and it would not work.
I was able to get it working using this firmware
https://github.com/KmanOz/Sonoff-HomeAssistant
So, at least it works now, but maybe someone smarter than I can modify the tasmota firmware (which I like better) to make it work.

There is no need to mess with the board,

Connect the lines to tx/rx/ gp0 to ground
The normal tasmota image works just fine, you just need to press (once) on the upper bottom to change mode (led is on) and select (12) in tasmota type of board (1 channel)

masterkey26 · 2023-04-12T22:06:48Z

Seems like i have another new layout ...

Tried several things to enter Flash Mode, without luck:

Pushed both buttons and connect USB --> No LED will tun on

Connected GPIOO with GND of PI --> Devies is starting as usual ( 1 LED is blinking )

Tried some Pins on the bottom (the right and left one) ---> right: No LED, left: booting up as usual

Does someone have an idea?

Hello, I managed to put tasmota in this model following this pinout and to put it in flash mode I held both buttons before inserting the converter, and after that I kept pressing it for 5s.

I Hope It helps.

jkwim · 2024-03-21T19:42:45Z

Yet another board (Includes RF also)
https://vi.aliexpress.com/item/1005005599015496.html

bjv · 2024-04-02T21:01:17Z

Seems like i have another new layout ...
Tried several things to enter Flash Mode, without luck:

Pushed both buttons and connect USB --> No LED will tun on

Connected GPIOO with GND of PI --> Devies is starting as usual ( 1 LED is blinking )

Tried some Pins on the bottom (the right and left one) ---> right: No LED, left: booting up as usual

Does someone have an idea?

Hello, I managed to put tasmota in this model following this pinout and to put it in flash mode I held both buttons before inserting the converter, and after that I kept pressing it for 5s.

I Hope It helps.

This helped me a lot. Thank you, @masterkey26.
Since I am not good at soldering, I just held the connectors in place by hand. Also, I used the Board's own Voltage I/O

I connected the two Voltage Pins (while pressing both buttons on connect for ~5 secs) to my FTDI232 driver

like

started flashing with ESP-Tool:
esptool.exe --port COM8 --chip ESP8266 write_flash 0x0 .\tasmota.bin
While he was Connecting............................. I connected the TX/RX Pins

... and hold still until flashing was complete. Worked fine for all of my 3 Boards.

whhsw mentioned this issue May 20, 2017

Latest version of sonoff basic does not enter flash mode #463

Closed

New ESP8285 based 1Channel Inching/Locking 5V/12V Sonoff #453

New ESP8285 based 1Channel Inching/Locking 5V/12V Sonoff #453

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