ICSK053A Precise DIY Kit Mobile Phone Signal Flash Light 3-12V Radiation Power
Phone call lights kit can be used to sense the GSM signal display, sensing distance up to 1 m, it is a very interesting DIY kit.
1. Electrical Characteristics
1). Supply voltage: 3 to 12V;
2). Sensing distance: about 1 m;
3). PCB board size: 2.2 cm * 2.8 cm;
4). Scope: GSM mobile phone signal, not available for CDMA mobile;
2. Circuit theory:
The main circuit is amplified antenna sensor signal circuit and circuit. Sensing signal through the antenna 3 to S8050 transistor amplifier to drive the LED, so that light up. When no signal is detected, no calls or no GSM phones, LED circuit is not only detects the signal to light up LED.
3. Assembly consideration:
Inductance of production:
Inductance 0.25 to 0.5 MM enameled available in pen core above can be around 5-10 laps. After a good round with a blade to scrape paint inductor 2, so we go soldered to the board.
4. Component list
Component
Label
Footprint
Value
Number
Ceramic capacitors
C1, C2
RAD-0.1
103
2
ISS86
D1
DO-35
2
5MM while LED
D2
LED_5mm
1
0.35MM Enameled
1
S8050
Q1, Q2, Q3
TO-92B
3
Resistance
R1, R2
AXIAL-0.4
10K
4
Resistance
R3
AXIAL-0.4
10M
2
Resistance
R4
AXIAL-0.4
1K
2
Resistance
R5
AXIAL-0.4
220
2
Resistance
R6
AXIAL-0.4
470K
2
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