https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=Microware_Radar_Sensor 2026-06-10T05:00:17Z Revision history for this page on the wiki MediaWiki 1.37.2 https://w.electrodragon.com/w/index.php?title=Microware_Radar_Sensor&diff=17220&oldid=prev 2017-12-06T17:34:59Z

<p></p> <p><b>New page</b></p><div>== RCWL ==<br /> === Pin Definition ===<br /> * 3.3V - LDO 3.3V output<br /> * GND - ground<br /> * OUT - outout signal, detect when object move on front<br /> * VIN - power supply in 4-28V<br /> * CDS - enable the IC, when lower than 0.7V, output keep on low TTL signal.<br /> === Features ===<br /> * Voltage 4-28V<br /> * Current 3mA<br /> * Detect distance 5-9M<br /> * Transmit power 20mW<br /> * Output drive capability 100mA<br /> * Output signal 0 or 3.3V<br /> * working temperature -20~80<br /> * storage temperature -40~100<br /> === Adjustment ===<br /> [[File:Rcwl 01.png|thumbnail]]<br /> * C-TM: repeat trigger time, default 2S, add capacitor can increase repeat time. The method is checking 9196 IC pin 3 frequency, trigger time T = (1/f) * 32768<br /> * R-GN: detect distance, connector resistor, distanct get short. default 7M. for 1M resistor, detect about 5M.<br /> * R-CDS: internal VCC connect between IC pin CDS and R-CDS pin, via 1M internal resistor. CDS connect photocell, can close sensor on night. You can set R-CDS value by the needs of ambient light.<br /> === Use note ===<br /> * Should have no any metal on front ot sensing area<br /> * Should keep at least 1CM space free<br /> * sensor and installation better keep parallel.<br /> * sensor front is main sensing area, back side sensing capability is less better<br /> * The sensor can not be implement on same area in the same time, or will have interference. Each should have at least 1 meter gap.<br /> === Schematic and dimension ===<br /> &lt;gallery&gt;<br /> File:Rcwl_02.jpg | sch<br /> File:Rcwl_03.jpg | dimension<br /> &lt;/gallery&gt;<br /> [[cateogyr: Promixity]]</div>

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