Hi everyone I bought a tuya door sensor wifi. My goal is to modify it and connect two wires to it, to simulate the opening/closing of the sensor. Where should I connect them? I thought I’d find a magnetic contact but I don’t see it. I attach photos [tuya]

The magnetic reed switch is probably on the other side of the PCB.

[z5052394081401_c769fe83df88b4c855ff692953d566df] [z5052750569452_b743bfb085718a7c77059a2642142054] [z5052403217052_2b01b70bdbb9c468f7f6652706987ad0] I soldered the circuit to get the magnetic switching sensor out. I attached the extension sensor to the keyhole to determine the lock status of th…

So I got one and mapped out the circuit noting that my sensor is different to either of the above, mine also has the ZTU module as it is the zigbee variant, either way this is what I came to after beeping it out (excuse the messy scribble): [PXL_20250103_021428733] U1 - HM6207 is the hall effect …

To update: removed the transistor and added the external reed switch. has been on battery pretty much the last 6hrs while I was faffing about getting everything else setup preliminary result: Battery: 100% I now have a sensor on my water meter! No pics sorry, was in ‘just get it done before th…

I have an older version, the PCB is similar and marked 2255. The board was designed with the hall sensor on the wrong edge and it had been bodged into the correct spot !! On this one R6 is 1K2. With this mod I get 1.9uA when closed (D7 high) and 3.3uA when open (D7 pulled to Gnd) and using the max …

Yeah, I bought 2 different ones at the same time as I saw the issues people were having with it. The circuit on the one above suggests that they have no idea how that hall effect sensor works, it has a pull push output so doesnt need any of the extra circuitry, just adding a huge drain. The other …

So what you say is that the original door/window sensor would be empty if you open the window or door for more than 1 day? (So without adjusting the original product) I recently bought this sensor which is very easy to expand. type: ZY-ZD02-ZTU_V1.2 I wanted to buy a few more of this, but thes…

Power Consumption Test for Zigbee Door Sensor (MC510A-A002) I received the Zigbee door sensor (MC510A-A002, link ) and performed a current consumption test. Here’s the setup I used: 5V from USB, feeding into a 3.3V voltage regulator (1700 3302E), which is slightly more than the power delivered by …

Take a look here: [image] A list of door sensor / reed sensor hacks! (Aqara, Xiaomi, others) Share your Projects! There’s so many cool little door sensor hacks floating around that I thought it might be useful to have a meta thread? Like this one. . I really like the Aqara …

Looks like that board is a full redesign with an integrated mcu and antenna instead of the zigbee module. From your measurements, they may have actually put some thought into redesigning it instead of just throwing components at it and hoping for the best. Mind you, given the variance out there in…

Tuya door sensor - external sensor

Hardware

mcarty (Arturo) June 7, 2025, 1:38pm 10

Take a look here:

There is plenty of information, even for the new ones that have a hall sensor instead of a reed sensor.