< pan tyle="font- ize: 18px;">Parameter:
Power Supply Voltage: Type-C interface DC-5V
Output Interface: 3.5mm interface
Operating Environment: -40u00b0C to 85u00b0C

< pan tyle="font- ize: 18px;">Principle De cription:
The touch key i divided into upper and lower layer , the upper layer i the main circuit and interface part of the key, and the lower layer i the magnet fixing ba e. The whole machine u e a touch chip to en e the capacitance change from the metal ball. After the human body touche the metal ball, the change in capacitance i tran mitted to the relevant pin of the chip through the line, and the relevant keying ignal i amplified and driven by the triode, and finally tran mitted to the At the key interface, the logic of the whole machine i that the effective keying ignal i low level, and the non-touch ignal i 5V high level. Thi level form matche the operation of mo t radio . The lower layer i a trong magnet, which can be ucked on any iron hell and play the role of fixing the electric key.

< pan tyle="font- ize: 18px;">In truction for U e:
The USB cable can be connected to a mobile phone charger or a computer. Note that the USB mu t be powered by 5V, and other voltage will burn the chip. After the power i turned on, the LED at the po ition of the USB port will light up, indicating that the power upply i normal. At thi time, if you touch the left and right metal ball , you can ee the LED light at the corre ponding ball po ition. At thi time, the touch i valid and the product function i normal. The touch button on the right i for a hort time, which repre ent a point, and the touch button on the left i for a long time, which repre ent a troke.

< pan tyle="font- ize: 18px;">Package Include:
1x Touch Key Module