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16 Channel 5V Relay Module with Optocoupler
In Stock
SKU:48316- 5V relay with AC contact capacity of 10A 250V and optocoupler protection.
- Onboard power supply module does not need an external power supply. I / O port driver is active low.
- The module can be used as a microcontroller development board module and also as appliance control, PLC extended output.
- It is using the industry’s top -quality isolation optocouplers, strong anti-jamming ability, stable performance.
- The 1-16 road can be any full on/off or any road.
- All interfaces can be directly connected through the terminal leads, very convenient.
8 Channel 5V Relay Module with Optocoupler
In Stock
SKU:10594- Channel: 8 channel
- Relay Operating Voltage: 5V
- One normally closed contact and one normally open contact
- Triode drive, increasing relay coil
- High impedance controller pin
- Pull-down circuit for the avoidance of malfunction
- Power supply indicator and Control indicator lamp
- Power supply and relay instructions, lit, the disconnect is off;
4 Channel 5V Relay Module with Optocoupler
In Stock
SKU:81573- 5V 4-Channel Relay interface board and each one needs 15-20mA Driver Current.
- Equipped with high-current relay, AC250V 10A; DC30V 10A.
- Standard interface that can be controlled directly by microcontroller (for Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).
- Indication LED’s for Relay output status.
2 Channel 5V Relay Module with Optocoupler
In Stock
SKU:96417- Low Level Trigger Relay Module
- Two separate LEDs for On/Off indication of the Relay.
- Triggering input voltage 3.3V – 5V
- Two separate LEDs for On/Off indication of the Relay
- Triggering input voltage 3.3V – 5V 4)
- Back EMF protection
- Back EMF protection 2 LEDs to indicate when relays are ON.
- Works with logic level signals from 3.3V or 5V devices
- Opto isolation circuitry
- Module with diode current protection, short response time
- AC Control Voltage: 250V @max.10A
- DC Control Voltage: 30V @max. 10A
1 Channel 5V Relay Module with Optocoupler
In Stock
SKU:37258- Channel: 1 channel
- Relay Voltage: 5V
- High impedance controller pin
- Pull-down circuit for the avoidance of malfunction
- One normally closed contact and one normally open contact
- Triode drive, increasing relay coil
ESP8266 WiFi 5V 1 Channel Relay Module
In Stock
SKU:46273- Onboard Module: ESP8266 wifi module; in AP mode it can connect with 5 Clients at the same time
- Operating Way: cellphone carried on wifi module; cellphone and wifi module carried on the same router, and use the APP to control relay
- Transmission distance : 400m (max)
- Relay : 5V,10A/250V AC 10A/30V DC
- Baud Rate: 9600.
- Diode effusion protection;
- Short response time
Arduino Uno R3 Board without Cable Best Quality
In Stock
SKU:37964- Micro-controller : ATmega328
- Operating Voltage : 5V
- Input Voltage (recommended) : 7-12V
- Digital I/O Pins : 14 (of which 6 provide PWM output)
- Analog Input Pins : 6
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TechnoSam – Wired for Innovation. Built for Reliability.
At TechnoSam, we specialize in providing high-quality electronics modules, development boards, and IoT components for makers, developers, educators, and enterprises. Whether you’re building a prototype or scaling to production, our curated inventory and expert support help you bring your ideas to life — reliably and affordably.
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