270004 FERWOOH Channel Relay Module Board Shield Extension

Review FERWOOH 3pcs Dc 5v 2ma Channel Relay Module Board Shield Extension Plat

The Ferwooh 270004 3PCS 5V 2MA Channel Relay Module Board Shield Extension Plate is an ideal solution for Arduino or Raspberry Pi users seeking to add relay functionality to their projects. This versatile and user-friendly module comes as a set of three relay boards, each capable of handling up to 2 channels.

Each relay module features a compact size of 30mm x 22mm x 7mm (L x W x H), making it a space-efficient addition to any project. The boards are designed with a shield extension plate, allowing for easy integration with Arduino or Raspberry Pi projects by simply stacking the relay shield on top of the microcontroller board.

The Ferwooh relay modules operate on a 5V DC power supply and can handle a maximum current of 200mA per channel. This makes them suitable for a wide range of applications, from controlling lights and appliances to managing motors and solenoids.

The module is equipped with opto-isolated relays, ensuring that the control and load circuits are electrically isolated from one another. This feature is essential for protecting the microcontroller from potential damage caused by voltage spikes or electromagnetic interference.

The relay modules come with conveniently labeled pins, making it easy to identify the IN, VCC, GND, and NO (Normally Open) connections. The IN pin is used to send the control signal from the microcontroller to the relay, while the VCC and GND pins are for powering the relay module. The NO pin is where the output signal is taken.

The Ferwooh 270004 3PCS 5V 2MA Channel Relay Module Board Shield Extension Plate is a reliable and robust option for those looking to add relay functionality to their projects. Its compact size, easy integration, and opto-isolated design make it a must-have component for various DIY and electronics projects.

Pros and Cons of buying a Ferwoh 270004 3pc 5V 2MA Channel Relay Module Board Shield Extension Plate

The Ferwoh 270004 3pc 5V 2MA Channel Relay Module is a popular choice for those looking to add relay functionality to their Arduino or Raspberry Pi projects. In this analysis, we will discuss the advantages and disadvantages of purchasing this relay module.

1. Easy to Install: The Ferwoh relay module is designed as a shield extension plate, making it simple to install and use with Arduino or Raspberry Pi boards. Users do not need extensive electrical knowledge or soldering skills.

2. Versatile: The module supports up to three relays, each with a maximum current capacity of 2MA and a operating voltage of 5V. This makes it suitable for a wide range of projects, from simple applications to more complex ones.

3. Durable: The Ferwoh relay module is built with high-quality components, ensuring reliable performance. It also features an LED indicator for each relay, making it easier to troubleshoot and monitor the status of the circuit.

4. Cost-effective: Compared to other relay modules on the market, the Ferwoh 270004 offers excellent value for the price, making it a popular choice for hobbyists and small-scale projects.

1. Limited Current Capacity: The Ferwoh relay module has a maximum current capacity of 2MA per channel, which might not be sufficient for high-power applications.

2. Manual Diode Protection: The module does not include built-in diode protection for inductive loads. Users must manually add flyback diodes to protect the relay from damage.

3. Lack of Documentation: The Ferwoh 270004 comes without extensive documentation, which may make it difficult for beginners to understand how to properly use the module.

The Ferwoh 270004 3pc 5V 2MA Channel Relay Module is an excellent choice for hobbyists and makers looking to add relay functionality to their Arduino or Raspberry Pi projects. Its ease of installation, versatility, and durability make it a cost-effective solution for a wide range of applications. However, its limited current capacity and manual diode protection may not be suitable for high-power projects, and the lack of documentation may pose a challenge for beginners.

If you're looking for a reliable and cost-effective solution for adding relay functionality to your Arduino or Raspberry Pi project, the Ferwoh 270004 3pc 5V 2MA Channel Relay Module is an excellent choice. Keep in mind that it may not be suitable for high-power applications and that you'll need to add flyback diodes for inductive loads. Additionally, be prepared to explore external resources for proper usage instructions.

Details:

Brand name: Ferwooh. It can be not only used as a board module, but also home appliance control. High-efficiency the relay shell is made of abs flame retardant plastic.the internal structure adopts high -efficiency spring with life span. Relay module connection method dc: positive power supply cc ; dc-: negative ND ; in: signal input terminal; no: normally open relay interface; com: common interface relays; NC: closed interface.

Contact material: silver. 3pcs dc 5v 2ma 1 channel relay module board shield extension plate low level trigger ac 250v/10a, 30v/10a: connector type: screw. 8.the red light is the power led indicator light, and green relay indicator. Coil voltage : 5 volts .

Electricity performance is excellent, safe and reliable, long mechanical life. High structural strength, impact resistance, strong resistance to impact, small input -end drive current, can easily be connected the computer terminal and various digital programming circuit interfaces. With a permanent open and close vents contact. With isolation groove in control area and load.

Contact type: 2no 2nc. Operation mode: automatic. Current rating: 10 amps. Mounting type: panel mount.

High mechanical strength, reliable and stable. Manufacturer: Ferwooh. 9.low-level triggering refers to a triggering method in which the voltage between the signal input terminal and ground is IV. With power and relay action indication, bright when connect go off disconnects.

It can be understood as triggering method in which the signal input terminal is short-circuited to legend negative pole. When there is a signal in input, public side and comm onside will break over.

specifications lightsod:

• brand: Ferwooh
• mpn: 270004
• part type: Module Board

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• category: Home & Garden > Lamps, Ceiling Fans > Lighting Parts

offer lightsod:

• in stock #: 1
• sold #: 6
• started: may 5, 2026
• price: $10.02
• item condition: New
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