This is a cool mobile phone call induction table, it senses the surrounding electromagnetic waves and emits light, and the brightness changes with the intensity of the electromagnetic waves. Calls from mobile phones and laptops can trigger it. Blurred light and shadow give you a comfortable working platform. How about it, it feels good! Does it feel amazing? Do you want to make one yourself?
Imagine having such a desk and even a dining table, it should add a lot to the home!
The circuit diagram is as follows (click to enlarge):
Note: COIL1 ~ 4 in the circuit diagram are the symbols of the capacitor, and the inductor is actually used.
Component list:
Marking components
ICLM324N
C110UF
R1, R5100K
R2, R7, R13, R1410
R3, R6, R9, R1010M
R4, R8, R11, R121K
C2, C3, C4, C50.1UF
LED bright blue LED * 4
COILmH level inductance * 4
The PCB diagram is as follows. The double-sided board is used here. The circuit is so simple that any wire can be obtained.
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FOSHAN FORTUNE ELECTRICAL APPLIANCE CO.,LTD , https://www.coffelady.com