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Dual Modbus-Rtu 2-way Relay Module Switch Input and Output RS485/TTL Communication Controller

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Get Dual Modbus-Rtu 2-way Relay Module Switch Input and Output RS485/TTL Communication Controller Description:   LC 2 channel Modbus relay module equipped with mature and stable 8-bit MCU and RS485 level communication chip, adopt standard MODBUS RTU format RS485 communication protocol. It can realize 2bit input signal detection and 2-bit relay output. It can be used for digital detection or power control occasions.   Features:   1. Support Modbus RTU protocol 2. Support RS485/TTL UART interface 3. Output indicator in multi-mode 4. The address can be set 5. Support input reverse connection protection 6. Relay switch output 7. Support parameter memory function   Parameters:   1. Item name: Dual Modbus Relay Module  2. Work voltage: DC 7V~24V 3. Baud rate: 4800/9600/19600bps(default 9600bps) 4. Optocoupler input signal: DC 3.3V~30V 5. Set address: 1~255 6. Relay control mode: ON/OFF, Delay_ON, Delay_OFF mode 7. Delay time: 0~6553.5s  8. Load: AC 250V 10A or DC 28V 10A 9. Protocol: Mo...
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Rectangular Wave Signal Generator DIY Kit Electronic Skills Training Parts

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Get Rectangular Wave Signal Generator DIY Kit Electronic Skills Training Parts Description: Dimensions: 51*27mm Board material: single side 1.6mm FR-4 sheet Supply voltage: 5V Name Parameter PCB mark Quantity Resistor 1K R1 1 4.7K R2 1 22K R3 1 220ohm R4 1 4.7K R5 1 Diode 1N4001 D1-D4 4 Adjustable potentiometer 100K RP1 1 Integrated voltage regulator 78L05 U1 1 IC NE555 U2 1 Electrolytic capacitor 470uF/16V C1 1 1uF/50V C2 1 Ceramic capacitor 104 C3 1 103 C4 1 Transistor 9013 Q1 1 LED 3mm green D5 1 3mm red D6 1 Jumper cap   S1, S2 2 Single row Pin 2p Tp1, GND, S 8 PCB     1 Package included: 1 x Rectangular Wave Signal Generator DIY Kit Rectangular Wave Signal Generator DIY Kit Electronic Skills Training Parts See detail
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555 Trigger Circuit Student Soldering Practice Board Electronic Production DIY Kit

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Get 555 Trigger Circuit Student Soldering Practice Board Electronic Production DIY Kit Description: Dimensions: 57*40mm Supply voltage: 5V Name Parameter PCB mark Quantity Resistor 1K R1 R3 R5 R6 R9 5 100K R2 R4 2 10K R7 R8 2 Diode 1N4007 VD1-VD4 4 Electrolytic capacitor 220uF C1 1 100uF C2 1 47uF C3 1 LED 3mm red LED1-LED3 3 Tact switch 6*6 S1 1 Adjustable resistor 200K W1, W2 1 IC LM7812 IC1 1 NE555 IC2, IC3 2 Ceramic capacitor 103 C4-C8 4 PCB     1 Package included: 1 x 555 Trigger Circuit DIY kit 555 Trigger Circuit Student Soldering Practice Board Electronic Production DIY Kit See detail
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