Exploring Tuya WiFi 24G MmWave Radar Sensor: PCB, Chips, and Features

Question

Bought Tuya WiFi 24G MmWave Radar Smart Human Presence With Illumination Detector Support Light Switch 95~250V from: The package is very non descript, but it's the Ø 60mm x 28.5mm model. It's flatter than other presence sensors and contains also a switch. The pcb board name is nas-ps10w6-mos-v...

divadiow · Accepted Answer

The PCB colour, typeface of markings, layout of test pads, general style and the "NAS-" prefix to the main PCB marking makes me wonder if it's a WENZHOU NOVA NEW ENERGY CO.,LTD product, like seen here: https://www.elektroda.com/rtvforum/topic4106753.html

If you have the packaging does it have a sticker label with details like this:

Added after 14 [minutes]:

boot log through to paired status with Tuya. MCU simulator used

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Tuya app experience:

Added after 8 [minutes]:

dev site:

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=

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which tidies to:

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p.kaczmarek2 · Answer

Thank you for sharing this interesting device! I haven't seen that kind of sensor yet.

From a brief glance, it looks like it might be a TuyaMCU device, so I would suggest starting with TuyaMCU guide:
TuyaMCU flashing, setup and configuration guide - configure dpIDs for Home Assistant
We could use TuyaMCU analyzer to get dpID meanings, but maybe it would be safer to use API method:
Extracting DpIDs for TUYA MCU devices
Then we can help you with autoexec.bat setup.

I think also @divadiow might know something more about this device.

divadiow · Answer

I don't think I do I have yet to get a presence sensor, though this is in the post: I could find out more but the download just takes me to this I do recognise that blue PCB though from Ali Hi-Link HLK-LD2410C

ferbulous · Answer

Looks like ld2410c, can you use the ld2410 component in the yaml?

peter_v · Answer

I don't know why the attachment (fw dump) isn't downloadable, so here is a temporary upload:

p.kaczmarek2 · Answer

I would love to add a driver for this chip! Protocol is known. Can you help testing? The attachment in the first post didn't load correctly. Can you delete it and upload again?

peter_v · Answer

Still no luck with the upload, even zip compressed dump didn't go through.. But fixed with temporary external upload.. No, no, You are helping me So I'm absolutely glad to do testing. My next step would be to debug serial communication, just not sure if it would be possible with power from the red ttl/usb thingy..

peter_v · Answer

WOW, I'm astonished what you were able to do with only the fw dump.. I think you are right, the PCB looks to be the same style.. Will check the package in the evening.

p.kaczmarek2 · Answer

Good job @divadiow . Well... it seems I was partially wrong:

p.kaczmarek2 wrote:
I would love to add a driver for this chip! Protocol is known. Can you help testing?

Since it's TuyaMCU, it's already supported, we don't need to interface that chip directly... just use TuyaMCU.

We can start working on autoexec.bat now I guess?

peter_v · Answer

I flashed the device with OpenBK7231N_QIO_1.18.48.bin using ltchiptool.

The device booted probably ok, because I can see a new wifi ap, but after connecting to it, I wasn't able to open the configuration interface. All I got was connection refused or site not available status. I tried even connecting directly to 192.168.4.1 and 192.168.4.100, still no luck..

The device seems to be doing something

and after a while begins cycling to on/off the output.

Could you please tell me, what I'm doing wrong?

p.kaczmarek2 · Answer

Take debug log out of the TX2 pin.

peter_v · Answer

Connected to TXD1 pad on PCB and the log seemed to be ok.. Turns out, my phone wasn't able to open the page, when switched to PC, it opened fine.. More wasted time.. Thanks to @divadiow 's json dump (took me quite a while to realize what it contained ) I was able to write this (beta version) autoexec.bat: Code: text Expand Select all Copy to clipboard startDriver TuyaMCU tuyaMcu_defWiFiState 4 setChannelType 1 ReadOnly setChannelLabel 1 Presence State linkTuyaMCUOutputToChannel 1 val 1 setChannelType 2 Toggle setChannelLabel 2 Auto linkTuyaMCUOutputToChannel 101 val 2 //linkTuyaMCUOutputToChannel 101 enum 2 //?? setChannelEnum 2 1:Auto 0:Manual  setChannelType 3 ReadOnly setChannelLabel 3 Human Motion State linkTuyaMCUOutputToChannel 102 val 3 //linkTuyaMCUOutputToChannel 102 enum 3 //?? setChannelEnum 3 0:none 1:small_move 2:large_move setChannelType 4 Default setChannelLabel 4 Presence Hold Time linkTuyaMCUOutputToChannel 103 val 4 // default to 10 seconds SetStartValue 4 10 setChannelType 5 Default setChannelLabel 5 Motion Detection Max Distance linkTuyaMCUOutputToChannel 104 val 5 setChannelType 6 Default setChannelLabel 6 Motion Detection Sensitivity linkTuyaMCUOutputToChannel 105 val 6 setChannelType 7 Default setChannelLabel 7 Micro Motion Detection Sensitivity linkTuyaMCUOutputToChannel 106 val 7 setChannelType 8 Default setChannelLabel 8 Current Distance linkTuyaMCUOutputToChannel 107 val 8 setChannelType 9 Default setChannelLabel 9 Lux Value linkTuyaMCUOutputToChannel 108 val 9 setChannelType 10 Default setChannelLabel 10 Output Duration linkTuyaMCUOutputToChannel 109 val 10 // default to 10 seconds SetStartValue 11 10 setChannelType 11 Toggle setChannelLabel 11 Switch linkTuyaMCUOutputToChannel 110 bool 11 // default to OFF SetStartValue 11 0 setChannelType 12 Toggle setChannelLabel 12 Status Indicator Light linkTuyaMCUOutputToChannel 111 bool 12 // default to OFF SetStartValue 12 0 BUT: 1.) It seems that the SetStartValue 12 0 is ignored (probably also for other channels). 2.) setChannelEnum is contrary to documentation not supported (is disabled in OBK source code). 3.) I wasn't able to represent channels as sliders with defined range and stepping in interface. And if I'm not mistaken, the fact that this module is TuyaMCU, there is no way to use the onboard triac to implement dimming..

divadiow · Answer

I think you'll be at the mercy of the TuyaMCU for everything. Did you get any further? In the meantime, I've had this arrive. A little different.

peter_v · Answer

Thanks for checking on me A bit disappointing, that there is a triac that I can't use for dimming and a lux sensor I can't read light levels from.. I stumbled upon the httpButtons driver, so I started to design a custom interface for the module, but I got busy with other things.. To be frank, there is already another presence sensor on my desk also.. And it seems to be using the same radar module as you have, on mine is ZY-M100, but equal otherwise, even the pinout is the same.. It seems to be a common tuya component: Are you going to reflash it?

przemsi_ele · Answer

I'm trying to guess, but I don't know if it works at all

this will be apply to TuyaMCU

setChannelType 55 LedIncandescentHalogen - i know ther is no such of thing
setChannelEnum 55 0:Led 1:Incandescent 2:Halogen - how can i add tihs ?

or maybe with comma

SetChannelEnum    [ChannelIndex][Value,Title][Value,Title]

the same situation with dpId 47 :
"range": ["flip","sync","button"]

@peter_v wrote

peter_v wrote:
2.) setChannelEnum is contrary to documentation not supported (is disabled in OBK source code).

Exploring Tuya WiFi 24G MmWave Radar Sensor: PCB, Chips, and Features

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