Dual Channel PWM Pulse Square Wave Generator Module 1Hz-150KHz

Dual Channel PWM Pulse Square Wave Generator Module 1Hz-150KHz

Product Introduction:
Operating Voltage:5-30V;support micro USB 5.0V power supply
Frequency Range:1Hz-150KHz
Frequency Precision:2%
Signal Load Capacity:8-30mA
Output Range:5V
Ambient Temperature;-30~70 Celsius

Features:
Two independent PWM generators can set the frequency,duty cycle
The wide frequency range,high accuracy
Support serial communication.

Applications:
As square wave signal generator which generates a square wave signal
To provide a signal to the stepping motor driver
Adjustable pulse generation for chip use
Produce variable pulse signal,the control-related circuit (PWM dimming,speed)

Module Description:
Frequency is divided into three ranges:
1.XXX (no decimal point):the smallest unit is 1Hz,the range 1Hz-999Hz
2.XX.X (decimal point in ten):The minimum unit is 0.1Khz; the range of 0.1KHz-99.9KHz
3.X.X.X.(there are three decimal point): the smallest unit is 1Khz; the range 1KHz-150KHz

Frequency Display Example:
"100" indicates that the PWM output pulse of 100Hz
"54.1" indicates that the PWM output pulse of 54.1KHz
"1.2.4." Indicates that the PWM pulse output 124KHz
Duty Cycle in the range:0 to 100
Three frequencies duty cycle is the same,all the parameters non-volatile

Serial Port Control:
Baud rate:9600 bps
Data bits:8
Stop bits:1
Parity bit:none
Flow control:none

Set The PWM Frequency
  "S1FXXXT":setting PWM1 frequency of XXX HZ (001 ~ 999)
  "S1FXX.XT":set the frequency of PWM1 XX.X KHZ (00.1 ~ 99.9)
  "S1F:X.X.X.T":setting PWM1 frequency of XXX KHZ (0.0.1 ~ 1.5.0..)
  'S1':PWM1
  'S2':PWM2
  'F':Frequency
  'D':Duty Cycle
  'T'is the end flag
 
Set The PWM Duty Cycle
  "S1DXXXT":setting PWM1 duty cycle XXX;(001-100)
  "S2DXXXT":set PWM2 duty cycle XXX;(001-100)
  Setting Successful Return:DOWN
  Setting Failback:FALL