PWM Pulse Frequency and Duty Cycle Adjustable 2 Channel Signal Generator Module for Square and Rectangular Wave

PWM Pulse Frequency and Duty Cycle Adjustable 2 channel Signal Generator Module for Square and Rectangular Wave is a 2 channel PWM/Pulse generator with variable Frequency: 1hz to 150 Khz and Duty cycle 1% to 100% alterations. The frequency and duty cycle can be controlled using switches provided on board. It can also be controlled using serial communication protocol. This module provides an easy solution for driving stepper motors using variable frequency pulse input and DC motor with variable PWM duty cycle.

Features:

• Two independent PWM cycle with variable Frequency and Duty cycle.
• Wide frequency range 1Hz ~ 150Khz
• Parameters configurable via Serial protocol
• Dimensions: 41 * 28mm Thickness: 1.6mm

Specifications:

Operating Voltage(VDC)	5 to 30
USB Type	Micro USB
Frequency Range	1Hz to 150KHz
Frequency Precision	2%
Operating Temperature (°C)	-30 to 60
Signal Load Capacity	Output Current is within 8-30mA
Dimensions in mm (LxWxH)	44x30x11
Weight (gm)	8

Application Fields:

• As square wave generator to generate square wave for experiment development
• Used to drive stepping motor driver’s square wave
• Generate adjustable pulse for MCU using
• Generate adjustable pulse for controlling relative circuit (PWM adjust light speed etc)

Serial Port Control:

• Communication Standard:9600 bps
• Data Bit:8
• Stop Bit:1
• Verify Bit:none
• Flow Control:none

Setting PWM Frequency:

• “S1FXXXT”: set PWM1 frequency as XXX HZ (001~999)
• “S1FXX.XT”: set PWM1 frequency as XX.X KHZ (00.1~99.9)
• “S1F:X.X.X.T”: set PWM1 frequency as XXX KHZ (0.0.1.~1.5.0.)
• “S1”: PWM1
• “S2”: PWM2
• “F”: frequency
• “D”: duty cycle
• “T”: stop sign bit

Setting PWM Duty Cycle:

• “S1DXXXT”: set PWM1 duty cycle as XXX;(001~100)
• “S2DXXXT”: set PWM2 duty cycle as XXX;(001~100)
• Setting successfully back: DOWN
• Setting unsuccessfully back: FALL

Parameter Setting:

Module has 3-channel key: Set, Up, Down

1. By short press SET key, can shift display 4 parameter values (FR1 :PWM1 frequency; dU1: PWM1 duty cycle; FR2: PWM2 frequency; dU2: PWM2 duty cycle); before shifting, there will be corresponding parameter name flashing.
2. Directly press UP, DOWN key to modify current parameter value
3. 2-channel PWM are set 3 kinds frequency value, in frequency display interface, by long press SET to shift, 3 kinds frequency duty cycle are the same (XXX:1Hz~999 Hz; XX.X:0.1Khz~99.9Khz;X.X.X.:1Khz~150Khz)

Package includes:

• 1 x 2 Channel PWM Generator Module