Icstation PWM Frequency Meter 1Hz-150KHz DC 3.3V-30V Adjustable Duty Ratio 0~100% Square Rectangular Wave Signal Generator LCD Display

ICStation dual channel digital square waveform signal generator module supporting 1Hz-150KHz frequency and 0%-100% duty cycle adjustment through the on-board momentary push button and also support external seial communication. DC 3.3V-30V wide voltage input and blue backlight LCD display output freuqncy and duty cycle at the same time ideal as the square wave source for instrument testing or driving the stepper motor and so on.

Specifications:
Frequency Range: 1Hz-150KHz
Duty Cycle Range: 0%-100%
Accuracy: 2%
Working Voltage: DC 3.3-30V
Output Current: 5-30mA
Output Amplitude:the same as the power supply
Module Size:52X32mm/2.05X1.26inch(L*W)

Package Included:
1X Digital 2 Channel Square Wave Pulse Signal Generator Module 1Hz-150KHz 0%-100%

Display Instructions:
There are 3 display range:
1:XXXX->the unit is 1Hz, range is 1Hz-999Hz
2.XX.X->the unit is 0.1KHz,range is 10.0KHz-99.9KHz
3.X.XX->the unit is 0.01KHz, range is 1KHz-9.99KHz
e.g.:100->100Hz;54.1->54.1KHz;1.2.4.->12KHz

Serial Control:
Baud Rage: 9600pbs; Date Bit:8; Stop Bit:1;Stop bit:1;Check Bit:none;Flow control:none
1. Set the PWM frequency:
"F101" set the frequency as 101Hz(001-999);
"F1.05":set the frequency as 1.05KHz(1.00-9.99);
"F10.5" set the frequency as10.5KHz(10.0-99.9);
"F1.0.5" set frequency as105KHz(1.0.0-1.5.0)

Set PWM'duty cycle:
"DXXX": set duty cycle as XXX;(001-100)

Read setting:
send "read" to read the set parameter. when set successfully, it will reply:DOWN;if failed, it will reply:FALL