User Manual

Duty Ratio 0~100% Adjustable
Frequency 1HZ~150KHZ Adjustable
Coded Potentiometer
Default to adjusting duty ratio; Shortly press it to adjust
frequency;Long press it for two seconds to set upper-lower limit
of duty ratio; Long press it for 5 seconds to lock; Long press it
for 10 seconds to switch modes (normal Mode/accurate Mode).
Parameter Setting:
Our signal generator module adjusts frequency and duty
ratio by rotating potentiometer and can quick adjust them by
rotating speed. The default setting value is duty ratio, to
change into adjusting frequency by long pressing button, to
lock it by long pressing it for 2 seconds, to switch modes
(normal mode / accurate mode) by long pressing it for 5
seconds; It’s very easy to use and all setting values will be
automatically saved even though power fails.
Range of Application:
Be used as signal generator of square wave and generate
square wave for experimental development to use;
Be used to generate square wave signal of control motor
drive;
Generate adjustable pulse for MCU to use;
Generate adjustable pulse to control relative circuit
(Application such as PWM dimming and speed regulation
and so on.)
Serial Control (SCM TTL Level Communication)
Communication Standard: 9600 bps
Data Bit: 8
Stop Bit: 1
Check Bit: none
Flow Control Bit: none
Instruction
Read parameter setting
Set lower limit of duty ratio
DNxxx: Set normal mode
DNxx.x: Set accurate mode
Set upper limit of duty ratio
UPxxx: Set normal mode
UPxx.x: Set accurate mode
MODE0: Normal mode
MODE1: Accurate mode
“F101”: Set frequency to 101Hz (001 ~ 999)
“F1.05”: Set frequency to 1.05KHz (1.00 ~ 9.99)
“F10.5”: Set frequency to 10.5KHz (10.0 ~ 99.9)
“F1.0.5”: Set frequency to 1015KHz (1.0.0 ~ 1.5.0)
Normal mode: “DXXX”: XXX (001 ~ 100)
e.g. D050: Set PWM duty ratio to 50%
Mode: “DXX.X”: XX.X (00.1 ~ 100)
e.g. D20.8: Set PWM duty ratio to 20.8%
Accurate
Serial Port
Directive
READ
DNxxx
UPxxx
MODEx
Fxxx
Dxxx
Successful setting back to DOWN
Failure setting back to FALL
PWM
GND
3.3V~30V
Power Input -
Power Input +
e.g. Frequency Display:
100 mean that PWM outputs 100Hz pulse;
1.01 means that PWM outputs 1.01K pulse;
54.1 means that PWM outputs 54.1KHz pulse
1.2.4 means that PWM outputs 124KHz pulse;
The range of duty cycle is 0 ~ 100%;
All data will be saved when power off.
Recommend product on Amazon:
4-20mA Signal Generator
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