Touch Button Illuminated from China for DIY crafts

Devay, acquired on the Chinese site, so for the sake of interest. The touch button is a fully finished device, built on a specialized atmel AT42QT1012 chip. It is a single-channel capacitive sensor.



The module is easy to use, it is enough to supply power from 2.7 to 6 volts and the sensor is ready for operation. The sensor output has a simple logic level of 3.3v. The stated load capacity of the floor ampere. But, when testing, more than a hundred milliamps it makes no sense to load the output of the module. When the declared ampere output transistor is heated very much.
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The module is interesting because it can not be used in conjunction with the microcontroller. Therefore, for a beginner radio amateur who is not familiar with microcontrollers, the touch button will not be difficult to use.

The advantages include the fact that the module is quite simple to use. Also, the backlight is not superfluous, especially the blue color looks beautiful. By cons, perhaps, only the price of $ 3, in my opinion, is too high. Well, how overpriced, when buying a single module, the price is normal. For example, for a keyboard where you need significantly more modules in quantity, the total amount of money becomes significant. It makes no sense to describe the work of the sensor module, I took it all on video, even disassembled the backlight. Look, perhaps this module will interest someone.