KE4015 Keyes DIY Electronic Brick Reed Switch Module

1. Introduction 

The Keyes 2021 new DIY electronic reed switch module is a high-quality module designed for electronics enthusiasts and educators. Made with environmentally friendly materials, it ensures safety and durability. The reed switch module is suitable for detecting changes in magnetic fields and is applicable to a variety of electronic projects and experiments.

2. Features 

• Environmentally friendly materials : Made of black environmentally friendly materials, meeting modern safety standards and suitable for various environments.

• Magnetic field detection : The module can detect changes in the surrounding magnetic field and realize the magnetic field sensing function.

• Anti-reverse connection : Equipped with a 2.54mm red anti-reverse connection terminal to ensure the safety and reliability of the connection.

• Compatibility : This module is compatible with a variety of microcontroller control boards (such as Arduino, Raspberry Pi, etc.), making it easy to implement different projects.

• Easy to install : Equipped with a 3-pin white reverse-insertion-proof connector, making wiring simple and suitable for beginners.

• Mounting holes : The module is designed with two LEGO-compatible mounting holes with a diameter of 3mm, making it easy to mount the module on LEGO or other devices.

3. Specifications 

• Model : KE4015

• Sensor type : Reed switch sensor

• Wire length : 200mm

• Operating voltage : DC 3.3V - 5V

• Interface type : 3-pin anti-reverse connector with a 2.54mm pitch

• Positioning hole size : 3mm in diameter

• Dimensions : 32mm x 23.5mm x 12mm

• Power consumption : Approximately 20mA (when operating at 5V)

4. Working Principle 

This reed switch module is based on the principle of magnetic field change, and its working principle is as follows:

• Power connection : The module is connected to the power supply through the GND and VCC ports, and supports an operating voltage range of 3.3V to 5V to ensure normal operation of the module.

• Signal control : When the magnetic field inside the reed switch changes, the module will output a high-level signal; when no magnetic field is detected, it will output a low-level signal.

• Connection configuration : The modular design facilitates quick assembly and disassembly, while the red anti-reverse insertion terminals and wires ensure safe connection and reduce the risk of incorrect connection.

5. Foot position description 

The module's pin definitions are as follows:

• VCC : Connect to the positive terminal of the power supply to provide the required voltage to the module. Ensure it is between 3.3V and 5V to avoid damage.

• GND : Connects to the negative terminal of the power supply to ensure the module works properly and provides a stable reference power.

• S (Signal Terminal) : Outputs a signal when the magnetic field changes. It outputs a high level when a magnetic field is detected and a low level when no magnetic field is detected.

6. Application Scenarios 

Keyes' new 2021 DIY electronic building block reed switch module is widely used in:

• Education : Used for teaching and experiments to help students understand the principles of magnetic field sensing and its applications.

• DIY projects : Suitable for making magnetic field sensors or electronic projects related to switching functions.

• Experiment : Used in experiments to test and demonstrate the response and control of magnetic field signals.