3Pcs Logic Level Tester Electronic DIY Kit Electronic Product Contest DIY Kit

Circuit function:

1. Detect logic signal input
When there is no logic signal input, LED2 emits yellow light, and when there is a logic level signal, LED2 does not emit light.
2. Determine the type of logic signal
If it is the high logic level of the input, LED1 lights red, if it is the low logic level, LED3 lights green.

PCB mark	Name	Package	Quantity
R10-R13	2k resistor	0805	4
R1	10k resistor	0805	1
R2	10M resistor	0805	1
R3, R9	4.7M resistor	0805	2
R5	18K resistor	0805	1
R6	6.8K resistor	0805	1
R4	27K resistor	0805	1
R8	1M resistor	0805	1
R7	1.5M resistor	0805	1
C1	101 capacitor	0805	1
Ca, Cb, Cc, Cd	103 capacitor	0805	4
LED0, LED1	red LED	0805	2
LED2	yellow LED	0805	1
LED3	green LED	0805	1
J1	Power port		1
IC1	LM324	SOP-14	1
VD1-VD4	IN4148 Diode		4

Package included:

3 x Logic Level Tester Electronic DIY Kit