8pcs RCWL-0516 RCWL 0516 Microwave Radar Sensor Module Human Detector Body Motion Induction Intelligent Sensor Switch Module Output 3.3V

Description

1. Instructions on adjustment * C-TM: Adjust the repeat trigger time. The default trigger time is 2S. The increase of capacitance will increase the repeated triggering time. The actual calculation of the repeated triggering time can be done as follows. The capacitor is affixed at c-TM and the 3-pin frequency F of 9196 is tested. The repeated trigger time T=(1/f)*32768 * R-GN: Detection distance adjustment, resistance connection, detection distance smaller. Not connected, the detection distance is about 7M and 1M resistance, the detection distance is about 5M. Customers can adjust according to the actual situation. * R-CDS: The internal VCC is connected in parallel with the internal 1M resistor to the CDS pin (the 9th pin of 9196) through R-CDS. The CDS is connected with the photosensitive resistor, and the module detection function can be turned off at night. R-CDS values can be set according to the actual required ambient brightness. 2. Application notes * There should be no metal shielding directly in front of the sensing surface. * Reserve more than 1CM of space in front of and behind the sensing surface. * The module and the mounting carrier plane should be as parallel as possible. * The application is valid in a certain detection area. * The component surface of the module is the positive sensing surface, and the negative side is the negative sensing surface. The induction effect of the negative induction surface is slightly worse. * Microwave modules cannot be used on a large scale in the same area, otherwise mutual interference will occur, and the distance between individual bodies is greater than 1M.