Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	SW-520D
Sensor Type	Ball Tilt Switch
Operating Voltage	3.3V - 5V DC
Output Signal	Digital (High/Low)
Detection Angle	Approx. 45 degrees
Interface	3-Pin Header (VCC, GND, OUT)
PCB Dimensions	15mm x 12mm
Mounting Hole Diameter	3mm
Compatibility	Arduino, Raspberry Pi, ESP32
Package Contents	1x SW-520D Module

6 reviews

Anonymous

Mar 25, 2026

Rating: 5/5

Essential component for beginners

Bought this for a university robotics kit. It's robust and handles the constant testing by students very well. The digital output makes it plug-and-play with microcontrollers.

Anonymous

Mar 22, 2026

Rating: 4/5

Works great after figuring out the pins

Took me a minute to identify the VCC and GND pins correctly as the silkscreen was slightly faint, but once connected, it responded instantly to tilting. Good product for learning.

Anonymous

Mar 20, 2026

Rating: 4/5

Good value, sensitive trigger

The module is compact and functions well. The ball inside is quite sensitive, which is good for vibration detection but requires careful calibration if you only want strict tilt detection. Overall happy with the purchase.

Anonymous

Mar 10, 2026

Rating: 5/5

Reliable and cheap

I've used several of these in different projects ranging from alarm systems to interactive art installations. They are incredibly reliable for the price point. Highly recommended.

Anonymous

Mar 04, 2026

Rating: 5/5

Solid build quality

The PCB looks professional and the soldering points are clean. The metal casing of the switch feels durable. No issues with false triggers in my current setup.

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect for my Arduino project

This tilt sensor works exactly as described. It was very easy to wire up to my Arduino Uno and the code examples found online worked immediately. Great for detecting orientation changes.

5 FAQ

Q: Does this module come with headers pre-soldered?

A: No, the module typically comes without headers soldered to allow for flexible wiring options. You will need to solder your own 3-pin header or wires.

Q: Can this sensor detect vibration without tilting?

A: Yes, the internal ball mechanism can react to strong vibrations or shocks, causing the output signal to fluctuate even if the angle does not change significantly.

Q: Is there a potentiometer to adjust sensitivity?

A: No, the SW-520D is a mechanical switch module and does not feature an adjustable potentiometer. The sensitivity is determined by the physical properties of the internal ball switch.

Q: What is the maximum current this module can handle?

A: This is a signal module designed for logic level input/output. It should not be used to drive high-current loads directly; please use a transistor or relay for higher power devices.

Q: Will this work with a 3.3V ESP32 board?

A: Yes, the module operates comfortably within the 3.3V to 5V range, making it fully compatible with both 5V Arduino boards and 3.3V ESP32 or Raspberry Pi Pico boards.

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