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1 Channel 5V Relay Module Black
In Stock
SKU:27589- 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
5V 1 Channel Relay Module Infrared IR Remote Switch Control
Out of stock
SKU:56278- DC 5V Home lighting system
- Remote control switch
- Smart Home / Home Automation
- Garage Door
- Remote controlled gates
- Security Monitoring
- LED lighting
- Fluorescent lamp
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
ESP32 CAM WiFi Module Bluetooth with OV2640 Camera Module
In Stock
SKU:73926- Flash LED off: 180mA @ 5V.
- Flash LED on to maximum brightness: 310mA @ 5V.
- Deep-sleep: 6mA @ 5V min.
- Modem-sleep: 20mA @ 5V min.
- Light-sleep: 6.7mA @ 5V min.
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
NodeMCU ESP8266 V3 Lua CH340 Wifi
In Stock
SKU:62485- Power input: 4.5V ~ 9V (10VMAX), USB-powered
- Transfer rate: 110-460800bps
- Support UART / GPIO data communication interface
- Support Smart Link Smart Networking
- Working temperature: -40°C ~ + 125°C
- Drive Type: Dual high-power H-bridge
- Don’t need to download resetting
- A great set of tools to develop ESP8266
- Flash size: 4MByte
- Lowest cost WI-FI
Ai Thinker NodeMCU-32S-ESP32-ESP8266
Out of stock
SKU:90512- Power supply: 5V
- Processor: ESP8266
- Logic level: 3.3V
- WIFI module: ESP-12S
- Built-in Flash: 32Mbit
Ai Thinker NodeMCU-32S-ESP32 with Lua
Out of stock
SKU:37098- Built-in Flash: 32Mbit
- Power supply: 5V
- WiFi protocol: IEEE 802.11 b/g/n
- Peripheral interface: UART/GPIO/ADC/DAC/SDIO/PWM/I2C/I2S
- Logic level: 3.3V
NodeMCU ESP8266 Serial Port Lua WIFI Development Board
In Stock
SKU:21843- Power input: 4.5V ~ 9V (10VMAX), USB-powered
- Transfer rate: 110-460800bps
- Support UART / GPIO data communication interface
- Support Smart Link Smart Networking
- Working temperature: -40°C ~ + 125°C
- Drive Type: Dual high-power H-bridge
- Don’t need to download resetting
- A great set of tools to develop ESP8266
- Flash size: 4MByte
- Lowest cost WI-FI
ESP8266 NodeMCU CP2102 Chip Board
In Stock
SKU:54729- Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
- Arduino-like hardware IO
- Integrated TR switch, balun, LNA, power amplifier and matching network
- Integrated PLL, regulators, DCXO and power management units
- Onboard USB to serial chip to easily program and upload codes from the Arduino IDE
- Embeds logic level converter circuits
- Has onboard 3.3V regulator to ensure enough power to function as your go-to WiFi chip
- Easy access to the GPIO pins for easy prototyping
- ESP-12E Processor
- Easy to use breadboard friendly form factor
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8×8 LED Dot Matrix 16 Pin Display
Out of stock
SKU:91783- Easy to Install on Breadboard.
- Bright LED lights.
- Compact Design.
- LED Size: 3mm.
- Configuration: Common Anode.
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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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