Your cart is empty.
Your cart is empty. Specifications:
Model: KY-004.
Rating: 50mA 12VDC.
Contact Resistance : 50mOhm max(initial).
Insulation Resistance: 100MOhm(minDC 250V).
Dielectric Strength : 250V AC(50/60Hz for 1minute).
Electrically Life: 100,000cycles.
Environment Temperature: -25 Degree Centigrade to +105 Degree Centigrade.
Operating Force: 180/230.(卤20gf)
Seal Temperature: 250 Degree Centigrade to 280 Degree Centigrade.
Package Included:2PCS.
Description:
This module is ideally suited to adding a button to your projects and will output a high signal when pressed. The small nature of the entire module makes this keypad ideal for use just about anywhere on your project and ideal for debugging a project. Microcontrollers, such as the Arduino communicate with switches by using the standard button libraries.
Key switch module and a digital interface, built-in 13 LED build a simple circuit to produce key warning lamp.13 comes with digital interfaces of the LED,theaccess number 3 button switch sensor interfaces, when the key switch sensor senses a key signal , LED lights , otherwise off.
Morgan
2025-09-02 10:30:04
These tactile switch sensors seemed like a good idea at first, but I had issues right from the start. While the product was easy to connect to my Arduino, I found that the switches often failed to register properly. The response time was inconsistent, and I encountered problems with the switches either not responding at all or sticking in the "on" position. Additionally, the quality of the switches felt flimsy, and I didn’t feel confident about their durability for long-term use. The board itself was of average quality, but I expected a more robust design for the price. The pins were a bit too small to make proper connections in some cases, which led to issues during soldering. I was hoping these would be a great addition to my project, but ultimately, they didn’t live up to expectations and slowed down my progress. I would not recommend this product for anyone working on a serious electronics project.
Jennie Funston
2025-06-20 10:02:56
Item arrived as described. Packaging could have been better but luckily nothing was damaged. Pieces worked exactly as expected.
Recommended Products
$11.90
$ 5 .99 $5.99