teardown DS-2TD2138-7/QY Thermal Network Bullet Camera

[isuzulake]

I spent 40 $ get a Thermal Network Bullet Camera. To be honest, I was shocked when I received it.
It was very heavy. The system that connects to the network is truvision.
It's not a traditional Hikon system, which is interesting. And then I took it apart.

[isuzulake]

The interior is divided into three parts
Thermal imaging module, motherboard, power board.
It's too long to hold a motherboard.

[isuzulake]

a hole？

[isuzulake]

Thermal imaging movement is 12um, very low power consumption, very suitable for portable devices.

[isuzulake]

adv7393

[isuzulake]

motherboard cvbs

[isuzulake]

So I put together an esp32 to rs232 little thing. It can control the stop and activate the cvbs function, and power the movement.

[isuzulake]

esp32--rs232

[isuzulake]

However, I finally encountered a problem that I did not understand.
The cvbs output of the motherboard was completely normal, but there was a problem with the cvbs output of the movement, which I could not solve.


 

module cvbs output normal speed


module cvbs output 1/10 speed

[isuzulake]

motherboard output cvbs

[An0v0meo~]

 How do you control this core?  Send some command through the serial port? I'm a little curious about what the interface of this core is

[isuzulake]

rs232,control it.for example nuc


unsigned char b[7]={0xF0,0x03,0x36,0x11,0x00,0x47,0xFF};

void setup(){
  Serial.begin(19200);
  pinMode(2, INPUT_PULLUP);
 
}

void loop(){
  if (digitalRead(2) == LOW) {
    if (digitalRead(2) == LOW) {
      while (digitalRead(2) == LOW) {
      }
      Serial.write(b,7);

    }
    delay(500);

  }

}