The HS2070 is a 2-channel variable frequency / variable duty cycle, PWM module for use as a square / rectangular wave generator. This unit is intended for use with DC brush motor controller or stepper motor driver.
The two outputs can be set independently for different frequency and duty cycle.
Product Introduction:
1.Operating Voltage:5-30V;support micro USB 5.0V power supply
2.Frequency Range:1Hz-150KHz
3.Frequency Precision:2%
4.Signal Load Capacity:8-30mA
5.Output Range:5V
6.Ambient Temperature;-30~70 Celsius
Features:
1.Two independent PWM generators can set the frequency,duty cycle
2.The wide frequency range,high accuracy
3.Support serial communication.
Applications:
1.As square wave signal generator which generates a square wave signal
2.To provide a signal to the stepping motor driver
3.Adjustable pulse generation for chip use
4.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:
1."100" indicates that the PWM output pulse of 100Hz
2."54.1" indicates that the PWM output pulse of 54.1KHz
3."1.2.4." Indicates that the PWM pulse output 124KHz
4.Duty Cycle in the range:0 to 100
5.Three frequencies duty cycle is the same,all the parameters non-volatile
Serial Port Control:
1.Baud rate:9600 bps
2.Data bits:8
3.Stop bits:1
4.Parity bit:none
5.Flow control:none
6.Set The PWM Frequency
1)"S1FXXXT":setting PWM1 frequency of XXX HZ (001 ~ 999)
2)"S1FXX.XT":set the frequency of PWM1 XX.X KHZ (00.1 ~ 99.9)
3)"S1F:X.X.X.T":setting PWM1 frequency of XXX KHZ (0.0.1 ~ 1.5.0..)
4)'S1':PWM1
5)'S2':PWM2
6)'F':Frequency
7)'D':Duty Cycle
8)'T'is the end flag
7.Set The PWM Duty Cycle
1)"S1DXXXT":setting PWM1 duty cycle XXX;(001-100)
2)"S2DXXXT":set PWM2 duty cycle XXX;(001-100)
3)Setting Successful Return:DOWN
4)Setting Failback:FALL
Board dimensions: 44 x 29mm
