Product Features:
Two independent PWM generators can be set frequency, duty cycle;.
The frequency range is wide, high precision;.
Serial communication is possible.
The module has three buttons [Set], [Up], [Down].
The frequency is divided into three ranges, XXX (no decimal point), XX.X (ten decimal points), X.X.X. (with three decimal points)
Module parameters:
Operating voltage: 5--30V, support micro USB 5.0V power supply.
Frequency range: 1Hz ~ 150KHz.
Frequency Accuracy: ±2%.
Output Current: <30mA.
Output Amplitude: Default 5Vp-P (settable).
Operating Temperature Range: -30~+ 70¡É.
The module description:
The frequency is divided into three ranges:
XXX (no decimal point): the smallest unit is 1Hz in the range of 1Hz ~ 999Hz; XX.
XX.X (ten decimal points): the smallest unit is 0.1Khz; 0.1KHz ~ 99.9KHz range
X.X.X. (with three decimal points): Minimum unit is 1kHz; the range of 1kHz ~ 150KHz
The frequency is displayed for example:
"100" indicates a PWM output pulse of 100Hz; "54.1" indicates a PWM output pulse of 54.1Hz; "54.1" indicates a PWM output pulse of 54.1Hz.
"54.1" indicates the PWM output pulse of 54.1KHz; "1.2.4" indicates the PWM output pulse of 1KHz to 150KHz; the range is 1kHz to 150KHz.
"1.2.4". Indicates a PWM pulse output of 124KHz.
Duty cycle range: 0 to 100.
The duty cycle of the three frequencies is the same and all the parameters are non-volatile.
Parameter Setting:
The module has three buttons [Set], [Up], [Down]
Pressing [Set] switches the display of the four parameters (FR1: PWM1 frequency; DU1: PWM1 duty cycle; FR2: PWM2 frequency; DU2: PWM2 duty cycle), and before switching the parameters, all of them are flashed with the corresponding parameter names.
Press [up], [down] key to modify the current parameter value (long press can quickly increase or decrease fast).
Each two PWM has three kinds of preset frequency, frequency display interface, long press the SET key to switch between the three types of frequency three kinds of frequency duty cycle is the same value. (XXX: range 1Hz ~ 999Hz; XX.X: range 0.1Khz ~ 99.9Khz; X.X.X: range 1kHz ~ 150kHz.) ).
Fourth, the range of application:
As a square wave signal generator which generates square wave signals.
To provide a signal to the stepper motor driver.
Adjustable pulse generator chip to use.
When generating variable pulse signals, control related circuits (PWM dimming, speed).
V. Serial Control
Baud rate: 9600 basis points
Data bits: 8
Stop bit: 1
Parity bit: None
Flow Control: None
1, Set PWM frequency
"S1FXXXT": Set PWM1 frequency for XXX HZ (001 to 999)
"S1FXX.XT": Set PWM1 frequency of XX.X KHZ (00.1 to 99.9)
"S1F:X.X.X.T": Setting the 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 PWM duty cycle
"S1DXXXT": Set PWM1 duty cycle XXX; (001 ~ 100)
"S2DXXXT": Set PWM2 duty cycle XXX; (001 to 100)
Setting success return: DOWN.
Setting failure recovery: FALL.
No retail box. Packaged securely in bubble wrap.
Package includes:
10Pcs x 2-way independent PWM generator