Greek style box, sensor, led light

thingiverse

Present box , with motion sensor, rechargeable LED light Materials : RCWL-0516 microwave sensor, micro USB adapter board, Mosfet, photoresistor, resistors (Aliexpress, Ebay), used phone battery, laser cut plywood box Print the 3D base. Insert LED , 5mm or 8mm strawhat is fine. I prefer the strawhat, purple or green. Solder on the LED wires, one could be the resistor 150ohm. Solder the Mosfet and 10nF C-TM timer capacitor on the RCWL board, connect all together except the photoresistor. Last solder wires on the phone battery , check voltage and polarity, connect the battery. The LED must light briefly, then go out, and after some time the RCWL should respond to movements. If this works, connect the photoresistor as well. Check the charger (voltage drop on 10 ohm 0.25 - 1V) and you are done. Important is to use no other type but the 1N4148 diode in the charger circuit. The 10 ohm resistor and the diode limits the current to safe 7mA when fully charged. Charge time 8 hrs. k40 laser stuff : Plywood box : 3 mm thick , some grocery box material is fine. Has double bottom, 7mm room for electronics. If you wish to replace the graphics do the following : load LYZ file , select and delete image only, keep cut lines. "Select all" and "cut". Open new file. "Save changes" - no. Open your jpg png etc. image. "Paste" the cut lines back. Adjust image size. The RCWL sensor uses 2mA , so the battery needs charging every 2 weeks. Just a little note : this sensor is incredible. Not only it senses the slightest movement from meters away, but I've made 6 boxes recently, all stand on the same table, don't seem to disturb each other's sensors at all. This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/i7G31504nrW