I am text block. Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
4-channel 5V optocoupler relay module
4-channel 5V optocoupler relay module for Arduino, Raspberry Pi, and microcontroller control of AC/DC devices.
The 4-Channel 5V Optocoupler Relay Module is a versatile and safe solution for controlling AC or DC devices using low-voltage signals from microcontrollers. Operating at 5V control voltage, it features four relays, each capable of switching loads up to 10A, making it ideal for home automation, robotics, and DIY electronics projects.
Equipped with optocoupler isolation, indicator LEDs, and screw terminals, this module ensures safe operation while protecting your microcontroller from voltage spikes. It is compatible with Arduino, Raspberry Pi, ESP32, ESP8266, and other microcontrollers, enabling reliable control of lights, fans, motors, and other appliances.

Related products
Arduino CNC Shield
- Shield type:Â Arduino Nano
- Firmware:Â GRBL
- Modular stepper motor drivers:Â 3
- Limit switches:Â 6
- Micro-stepping:Â 1/16
- Coolant enable
- Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825, and others) (Not Included)
- Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )
- Compact design.
- Runs on 12-36V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
- Please note that this is an unassembled kit and needs soldering.
- Latest Arduino CNC Shield Version 3.51
Creality CR-5 Pro 3D PRINTER/300*325*380mm/multiple materials supported
CS DC Geared Motor 10 RPM
HC-06 4Pin Bluetooth Module Without Reset Switch
- Working current: matching for 30 mA, matching the communication for 8 mA.
- Dormancy current: no dormancy.
- Used for a GPS navigation system, water, and electricity gas meter reading system.
- With the computer and Bluetooth adapter, PDA, seamless connection equipment.
- Bluetooth module HC-08 Master and slave Two in one module.
- Use the CSR mainstream Bluetooth chip, Bluetooth V2.0 protocol standards.
- Potter default rate of 9600, the user can be set up.
- Bluetooth protocol: Bluetooth Specification v2.0+EDR
- Speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps.
- Security: Authentication and encryption.
- Profiles: Bluetooth serial port.
Peak Green PLA 1.75mm 1 KG Filament-Wanhao
Potentiometer Sensor Module
Serial LCD Driver
Text to Speech TTL Module (Serial to Speech)
-  Single row 0.1″ header for easy connection to a host system
- Power requirements: +5 VDC
- 30 mA idle
- 46-220 mA active (depending on speech parameters and output load)
- Â Communication: Asynchronous 9600 bps serial (8N1)
- Dimensions: 1.25″x1.5″x0.37″
-
Text support rate is better
-
 Interface operation is simpler
-
5V single power supply.
-
Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
-
Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
-
 Voice effect optimization
-
 Module miniaturization and easy integration
-
Dimension: 33*27.5mm
-
With mounting holes

Reviews
There are no reviews yet.