Specifications

3. FCC:The design is FCC compliant.
4. Interface
5. Uplink communication protocol
1) Microwave uplink signal：
 Normal: high level;
 Human body induction detection:
 When the automatic flip function is on, it detects that a person enters the sensing
range and outputs 200ms low level, and detects the movement of objects in the range
in real time, and outputs 200ms low level in real time;
 When other people are not close to the cover automatically, the function will be closed
automatically.
2) Gesture sensing detection：
 When the automatic flip function is turned off, if the cover is in the fully closed
state, the gesture signal is detected and the low level of 300ms is output;
 When the automatic flip function and gesture sensing function are turned off, the human
activity signal and gesture signal are not detected;
 When the upper cover of the microwave module is opened, a gesture signal is detected
and a 50 Hz square wave (duty ratio of 1:1) is output for 300 ms. the uplink signal
returns to normal for human body induction detection and departure signal detection;
3) Departure signal detection：
 Whether the automatic flip function and gesture sensing function are on or not, the
exit signal needs to be detected;
 When the human body is detected to be out of range, a 100Hz square wave (duty ratio
of 1:1) is output, and the duration is 300ms. The uplink signal returns to normal for
human body induction detection;
6. Downlink communication protocol
Num.
Name
Description
Comment
1
VDD
DC+5V
Input
2
Data-Down
Host -> Radar
TTL 0~5V
3
NC
NC
NC
4
Data-Up
Radar -> Host
TTL 0~5V
5
GND
Ground
Input