USB Type-C DC 5V CW Morse Telegraph Touch Sensitive Automatic Key Module Amateur Radio Morse
207
Direct purchase from the factory 
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<div id="specification"></div><div id="specification_end"></div><b><span style="font-size: 18px;">Parameter:</span></b><br>Power Supply Voltage: Type-C interface DC-5V<br>Output Interface: 3.5mm interface<br>Operating Environment: -40u00b0C to 85u00b0C<br><br><b><span style="font-size: 18px;">Principle Description:</span></b><br>The touch key is divided into upper and lower layers, the upper layer is the main circuit and interface part of the key, and the lower layer is the magnet fixing base. The whole machine uses a touch chip to sense the capacitance change from the metal ball. After the human body touches the metal ball, the change in capacitance is transmitted to the relevant pins of the chip through the line, and the relevant keying signal is amplified and driven by the triode, and finally transmitted to the At the key interface, the logics of the whole machine is that the effective keying signal is low level, and the non-touch signal is 5V high level. This level form matches the operation of most radios. The lower layer is a strong magnet, which can be sucked on any iron shell and play the role of fixing the electric key.<br><br><b><span style="font-size: 18px;">Instructions for Use:</span></b><br>The USB cable can be connected to a mobile phone charger or a computer. Note that the USB must be powered by 5V, and other voltages will burn the chip. After the power is turned on, the LED at the position of the USB port will light up, indicating that the power supply is normal. At this time, if you touch the left and right metal balls, you can see the LED light at the corresponding ball position. At this time, the touch is valid and the product function is normal. The touch button on the right is for a short time, which represents a point, and the touch button on the left is for a long time, which represents a stroke.<br><br><b><span style="font-size: 18px;">Package Include:</span></b><br>1x Touch Key Module</p><p>
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