2、 Product application:
Morse code learning;
Morse code decoding;
Morse code coding;
3、 Technical parameter table:
Number Project Parameters Unit Remarks
1. Working voltage 7-12 VDC
2. Working current<50 mA
3 dimensions 65 * 45 * 20 mm length x width x height
4. Module interface:
(1) Interface P1:
VDD: Power positive terminal interface.
GND: Power ground interface.
(2) Signal input interface J1: It is a 3.5mm audio input interface.
(3) Signal output interface J2: It is a 3.5mm audio output interface.
Adjust the input (range 700Hz~3000Hz) through the VF-IN potentiometer
Adjust the output signal volume through the V-OUT potentiometer
4、 Interface display and operation instructions:
(1) Key Description:
UP: Self adding key.
DOWN: Self subtraction key.
Enter: Clear screen/send signal.
FUN: Receive signal/send signal selection.
4.1 Receiving CW codes
Interface display font:
The first line reads "Receive:"
Second line
Key operation:
UP: Not used;
DOWN: Not used;
Enter: Clear screen
FUN: Switching (receiving CW code/sending CW code)
Note: The received CW code is displayed on the second line.
4.2. Sending CW code
Interface display font:
The first line reads "Send: 5"
The second line "5645"
Key operation:
UP: Self adding key;
DOWN: Self subtraction key;
ENTER: Send selected CW code
FUN: Switching (receiving CW code/sending CW code)
Note: The issued CW code is displayed on the second line.
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