How it will work in underwater? (sit in Water tight container)

Hi. Is the schematic available somewhere? I would like to implement digital sensitivity control, possibly with the Fermion: MCP42100 (though I need to probably use 10k version pot chip MCP42010).
Also the link for MCP 42100 schematic and layout are incorrect it seems.

Hi can we connect microwave sensor with galvanic skin conductivity by using resistance from 12kom to 10000kohm with arduino mega

Digital Microwave Sensor work with ESP devices ?

Sorry, the microwave sensor donot have the datasheet for your reference.
But this sensor could detect all kinds of movement.(Even the human breath)
Normally we use the interrupt PIN on the MicroController.
And you could catch the FALLING count to adjust the sensitive of the sensor.

How fast can this sensor read? I ask because I'll like to know if it can be used to measure the speed of an object moving away from the sensor by measuring the time between each pulse.

Thank you

Is it normal that the sensors range is extremely low when put behind a wall? I found it works pretty well when it has a clear line of sight but once it's behind a wall you almost have to touch the wall to be able to detect anything reliably

Hi, can we use this sensor to program, count and track vehicles in real-time? if not what would you suggest besides on video image processing?

Hi, can this sensor detect small rodents like a mouse or rat? Is there any other sensor that can?

Hi, may I know is it possible to change the detecting distance to a max. of 30cm?

Can Digital Microwave Sensor work with Raspberry Pi by "IO Expansion HAT for Raspberry Pi". Thank you for your kindly replied.

Hi,
it is possible to get the information whether the object is moving away or approaching?

Dear Sir,

I got this sensor and try to connect it with my Raspberry Pi but can not get Freq. readout from Raspberry Pi (code by python). Is this sensor available for Raspberry Pi?

Hi,

Another question.

I've been bench testing this with my rpi and it has been working fine waving my hand in front of it.

I put it in its eventual home by a window and found that it doesn't detect anything through the window. Then it turns out that I probably have low-e windows, which are metal coated to block UV. So I tried it through a drywall/1.2" wood siding wall. And tried drywall/stucco.

The range is very limited -- like I have be a foot from the other side of the wall. The same when going through the wooden front door.

I've tried turning the device all the way up, but it seems to flash randomly with no movement unless I turn it down about a quarter turn. I've tested it in my hallway at this quarter turn setting and I only get about 6-7m of detection at best directly in line with it.

I'm wondering two things -- (1) is that quarter turn really turning down the sensitivity enough to affect my results? (2) could my random flashes/detects be that noise from the rpi is causes the sensor to detect when set to its highest setting. (Ah, I need to test this with a non rpi 5v source.)

I found someone here saying a completely different sensor (although there are comments about the HB100, too) had problems with the wifi ESP --

https://github.com/jdesbonn...

...some suggested adding cap's to the v-in, another suggest a "MT3608 DC-DC Step Up Adjustable Power Supply Adapter Module for Arduino".

So apart from my two questions above -- any suggestions?

Edit: Ok, I cut apart a USB cable and connected it to an iphone charger and the sensor. Not false triggers. So it's a dirty 5v line on the pi. Just looking at the flashing, it feels like network traffic, having seen enough flashing NIC's over the years. I haven't checked whether the range is better once I turn it up. Will try again tomorrow.

Hey Rich,
You are correct in understanding it has a HB100 chip. The front is the yellow antenna surface and the top is where the two LEDs are located. Here is a digram that will help you better understand its relative location in reference to the azimuth and pitch . https://uploads.disquscdn.c...

I suggest you take a look at the product wiki here: https://wiki.dfrobot.com/Mi... to get a full breakdown of the sensor, as well as the sensors schematic if you would like: https://github.com/nxcosa/M...

?¿ Nothing to say DfRobot Support?

is it possible to detect the presence but not the motion using this sensor?

The connection between SEN0192 and Arduino is directly from the sensor to UNO, like the wiki shows: VCC/GND/D2

Commenting for others who may need it:
The faster something is moving, the more often you will get pulses (It's what a doppler radar does...) You'll have to make your own arduino sketch *gasp*, basically, start a timer when you get a pulse, read the value (and restart) when you get the next one (do this in an interrupt handler). Use a sliding average on the pulse lengths, you should get a decent indication of speed.

I've purchased two of these MW Motion sensors recently. They are a bit costly but appears to be of good quality. I'm having problems with Distance Adjustment. The product's wiki page says- "....The detection distance can be adjusted using the potentiometer...." But it seems that either its not working as stated or the product is defective. Please help!

Additionally, I need to have drafting-dimensions of the product, as I need to develop a DIY casing for it. Only dimensions I can find are for Antenna-Module(I need dimensions with the black-masked chip (amplifier stuff) also). Any help will be appreciated.

I am not sure what is CW radar, but this sensor can't rotate.
Could you tell the second question more clearly? The output of the module has used amplifier, if you want to just get the signal from the sensor, you need to skip those circuit.