Hello, thank you for this instruction, successfully flashed 2 NAS-WR01W devices 2 years ago. Now want to flash it back to default firmware. Do you have stock firmware?
Hello ! Nice howto thanks, I have just done my first NeoCoolCam without any problem ;) I have also the same plug without power consumption , have you already try to flash it? Thanks
The plug without power monitoring, I think it should be a 10A model. I've never used one (since I needed power monitoring). AFAIK it has a different PCB and pinmap, so you should adjust the pin numbers. Check this page out. templates.blakadder.com/neo_coolcam_NAS-WR01W-10A.html
I flashed some years ago, 2 plugs, but for some reason the flash is not working anymore, with new plugs. The nodemcu indicates "Waiting MAC". I checked and tested the wiring, and soldering. I have RX/TX which are crossed between plug and "USB2TTL " adapter. I also check that the chip on the device is still using ESP8266. Anyone faced the same issue?
@@MahlerLab Well, that was my first thought but I checked the chip at the bottom and it's still an ESP. What's written on it is ESP8266EX (442019 JB00PPMX56) Long press on the button for 5sec switch from operation slow blinking (WiFI AP/ pairing mode) to fast blinking (download mode?) Not sure it is as simple to switch to download mode, even with an ESP.
@@MahlerLab Yes, indeed, I was holding the button and cross-connected TX/RX with the adapter. I tried with another plug (I bought five devices) and the result is the same. No serial data received. When I plug the adapter, it does not make any difference. I suspect that maybe they changed the hardware (GPIO0 may not be linked to the button) or they disabled UART after/with the initial flash... ? The led has 2 modes : slow blinking (pairing mode) or fast blinking (I don't know what it is but maybe not flash mode) and I can switch from one mode to the other by holding the button pressed for 5 sec. I like these devices and I'm affaid I will have to reassemble them without success. I will have to give "tuya cutter" a try or "tuya convert"
Hi, I did a quick search and I think esptool is the keyword you are looking for. Sorry if it's not the case, but I don't use ubuntu and I'm not familiar with it.
@@MahlerLab Hi, I've got another problem with same plug, when I hit "flash", NODEMCU TEAM logo turning blue, and nothing happens, in log, I've got this: Note:Detect serial port changed. Note:Auto MAP serial port.Port-->COM5 Note:Serial port connected. Note:Begin find ESP8266 and nothing happening.
Indeed very nice and clear. It is very much appreciated. (i have more than once bought a plug that has had its chip swapped or it is simply impossible to flash via serial without breaking it.)
Hello, thank you for this instruction, successfully flashed 2 NAS-WR01W devices 2 years ago. Now want to flash it back to default firmware. Do you have stock firmware?
No, sorry
@@MahlerLab Sad to read this. Thank you for your reply.
Is there any way to reprogram tywe2s/wb2s/eps-02s wifi module if you have only Windows OS?
Hi. During soldering I;ve damaged 3.3 pin. Where can I find alternative pin 3.3? Thx.
I'm sorry but I don't know. Maybe you can scrape off some solder mask around the missing pad?
When is the calibration video coming?
Very good man! I have a tuya wifi relay with 2 switches. Do you know if it is possible to flash with ftdi?
Sorry I've never used one. Does this link help? tasmota.github.io/docs/devices/Geekcreit-Sonoff-2-Channel-Relay/
Hello ! Nice howto thanks, I have just done my first NeoCoolCam without any problem ;) I have also the same plug without power consumption , have you already try to flash it? Thanks
The plug without power monitoring, I think it should be a 10A model. I've never used one (since I needed power monitoring). AFAIK it has a different PCB and pinmap, so you should adjust the pin numbers. Check this page out. templates.blakadder.com/neo_coolcam_NAS-WR01W-10A.html
Thank you!
You're welcome!
Question: everyone tells me you need to connect GND with GPIO0 to enter flashmode. But you didn't?
07:46 The button is connecting GND to GPIO0 so you have to hold the button down before powering up the board to enter to flash mode.
I flashed some years ago, 2 plugs, but for some reason the flash is not working anymore, with new plugs. The nodemcu indicates "Waiting MAC". I checked and tested the wiring, and soldering. I have RX/TX which are crossed between plug and "USB2TTL " adapter. I also check that the chip on the device is still using ESP8266.
Anyone faced the same issue?
I heard the manufacturer switch from ESP chips to something else in later models. Perhaps that's why you couldn't make a connection. So sad...😥
@@MahlerLab Well, that was my first thought but I checked the chip at the bottom and it's still an ESP. What's written on it is ESP8266EX (442019 JB00PPMX56) Long press on the button for 5sec switch from operation slow blinking (WiFI AP/ pairing mode) to fast blinking (download mode?)
Not sure it is as simple to switch to download mode, even with an ESP.
Just in case... Did you plug in the FTDI adapter while holding the button down? Did you cross-connect TX and RX?
@@MahlerLab Yes, indeed, I was holding the button and cross-connected TX/RX with the adapter. I tried with another plug (I bought five devices) and the result is the same. No serial data received.
When I plug the adapter, it does not make any difference. I suspect that maybe they changed the hardware (GPIO0 may not be linked to the button) or they disabled UART after/with the initial flash... ?
The led has 2 modes : slow blinking (pairing mode) or fast blinking (I don't know what it is but maybe not flash mode) and I can switch from one mode to the other by holding the button pressed for 5 sec.
I like these devices and I'm affaid I will have to reassemble them without success. I will have to give "tuya cutter" a try or "tuya convert"
thanks sir, you can't flash firmware board using cmd Ubuntu and SDK?
Hi, I did a quick search and I think esptool is the keyword you are looking for. Sorry if it's not the case, but I don't use ubuntu and I'm not familiar with it.
@@MahlerLab thank you!
great and very helpful video, thank you.
Thanks for the feedback! Glad it helped.
my NAS-WR01W not worked over this UART (((
chip ESP8266EX
serial port not see the device (((
TUYA blocked UART ?
I would check the connections again, or used a different FTDI adapter
@@MahlerLab Hi, I've got another problem with same plug, when I hit "flash", NODEMCU TEAM logo turning blue, and nothing happens, in log, I've got this:
Note:Detect serial port changed.
Note:Auto MAP serial port.Port-->COM5
Note:Serial port connected.
Note:Begin find ESP8266 and nothing happening.
@@gerardliwochpl Sorry not sure about that issue. I would try to check for proper connection. (Swap USB cable, check solder joints, etc)
@@MahlerLab I've found a problem. New version of NAS-WR01W aren't made on ESP chipset, it's made on (probably) BK7231 chipset.
@@gerardliwochpl Sad to learn that.... Many Tuya-based products are moving away from the ESP chipset.
Super video! 👍
Thanks! :)
Indeed very nice and clear.
It is very much appreciated.
(i have more than once bought a plug that has had its chip swapped or it is simply impossible to flash via serial without breaking it.)
done!
@@tycstahX Glad to hear you made it! I like this model because it is very small and does not take up much space compared with other models.
Very true, i think i'll buy myself another one.