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4pcs Door Sensor Magnetic Switch for Arduino, ESP32, ESP8266, Raspberry Pi

4.1 out of 5 stars 16 ratings
$7.99
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Number of Items: 4
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Purchase options and add-ons

Brand DIYables
Color White
Power Source Hardwired Electric
Item Weight 0.04 Kilograms
Mounting Type Wall Mount

About this item

  • 4 x sets of MC-38 Wired Door Sensor Magnetic Switch
  • Removable adhesive paper on the back => easy to stick on the flat surfaces
  • Works with Arduino, ESP32, ESP8266, Raspberry Pi, or any kinds of microcontroller
  • Used to detect door/window open or closed
  • Tutorials for Arduino and ESP32 are provided
› See more product details
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 4.02 x 2.91 x 0.75 inches; 1.45 ounces
  • Item model number ‏ : ‎ DIY-DOOR-SENSOR-4
  • Date First Available ‏ : ‎ June 7, 2022
  • Manufacturer ‏ : ‎ DIYables
  • ASIN ‏ : ‎ B0B3D7BM4K
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.1 out of 5 stars 16 ratings

Product Description

This is 4 x sets of MC-38 Wired Door Sensor Magnetic Switch that work with Arduino, ESP32, ESP8266, Raspberry Pi, or any 5V or 3.3V microcontroller.

SPECIFICATION:
- 4 x sets of MC-38 Wired Door Sensor Magnetic Switch
- Each set includes: one magnet and one reed switch, which has two wires
- Removable adhesive paper on the back => easy to stick on the flat surfaces
- Works with Arduino, ESP32, ESP8266, Raspberry Pi, or any kinds of microcontroller
- Works as a switch: reed switch is closed when near to the magnet and open when far from the magnet
- Used to detect door/window open or closed
- Tutorials for Arduino and ESP32 are provided

TUTORIALS:
- Arduino and ESP32 online tutorials: DIYables Door Sensor

INTERFACE:
The door sensor has two components:
- One magnet
- One reed switch, which has two wires. We do NOT need to differentiate the two wires of the reed switch.

Customer reviews

4.1 out of 5 stars
16 global ratings

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Perfect for DIY project
5 out of 5 stars
Perfect for DIY project
Got these for a project with an ESP32, and they work very well. Adhesive on the backs may be a little on the cheap side and I removed it and swapped with 3m Branded double-sided adhesive that I know will not fall off. Sensor wires are 12'' so you had a decent amount of wire to work with. Mounting screws not included do to the adhesive, but holes are present.
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Top reviews from the United States

  • Toothsquatch
    5.0 out of 5 stars Perfect for DIY project
    Reviewed in the United States on December 9, 2024
    Number of Items: 4Verified Purchase
    Got these for a project with an ESP32, and they work very well. Adhesive on the backs may be a little on the cheap side and I removed it and swapped with 3m Branded double-sided adhesive that I know will not fall off. Sensor wires are 12'' so you had a decent amount of wire to work with. Mounting screws not included do to the adhesive, but holes are present.
    Customer image
    Toothsquatch
    5.0 out of 5 stars
    Perfect for DIY project

    Reviewed in the United States on December 9, 2024
    Got these for a project with an ESP32, and they work very well. Adhesive on the backs may be a little on the cheap side and I removed it and swapped with 3m Branded double-sided adhesive that I know will not fall off. Sensor wires are 12'' so you had a decent amount of wire to work with. Mounting screws not included do to the adhesive, but holes are present.
    Images in this review
    Customer image
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     Report
  • Geetar
    1.0 out of 5 stars 2 out of 4 did not work.
    Reviewed in the United States on November 6, 2023
    Number of Items: 4Verified Purchase
    50% of the ones in the box would keep the switch closed after I pulled the magnet away. Junk.
    Helpful
     Report
  • Jay Kim
    5.0 out of 5 stars Works as intended
    Reviewed in the United States on May 23, 2023
    Number of Items: 4Verified Purchase
    The media could not be loaded.
    I bought this for a DIY home security project by attaching to my doors and windows. During prototyping with my Arduino, everything worked as intended with the input changing from low to high based on the distance between the reed switch and the magnet. Also pretty satisfied with the sensitivity of the sensors.
    4 people found this helpful
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Product Summary: DIYables 4pcs Door Sensor Magnetic Switch for Arduino, ESP32, ESP8266, Raspberry Pi

From DIYables

4.1 out of 5 stars, 16 ratings

Customer reviews

Price

One-time purchase: $7.99

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About this Item

  • 4 x sets of MC-38 Wired Door Sensor Magnetic Switch
  • Removable adhesive paper on the back => easy to stick on the flat surfaces
  • Works with Arduino, ESP32, ESP8266, Raspberry Pi, or any kinds of microcontroller
  • Used to detect door/window open or closed
  • Tutorials for Arduino and ESP32 are provided

Product Description

This is 4 x sets of MC-38 Wired Door Sensor Magnetic Switch that work with Arduino, ESP32, ESP8266, Raspberry Pi, or any 5V or 3.3V microcontroller. SPECIFICATION: - 4 x sets of MC-38 Wired Door Sensor Magnetic Switch - Each set includes: one magnet and one reed switch, which has two wires - Removable adhesive paper on the back => easy to stick on the flat surfaces - Works with Arduino, ESP32, ESP8266, Raspberry Pi, or any kinds of microcontroller - Works as a switch: reed switch is closed when near to the magnet and open when far from the magnet - Used to detect door/window open or closed - Tutorials for Arduino and ESP32 are provided TUTORIALS: - Arduino and ESP32 online tutorials: DIYables Door Sensor INTERFACE: The door sensor has two components: - One magnet - One reed switch, which has two wires. We do NOT need to differentiate the two wires of the reed switch.

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