PWM regulator dvojni mini modul LED
Dva neodvisno generirana PWM signala.
Delovna vhodna napetost: 5 – 30 Vdc, možnost napajanja preko microUSB konektorja (5 Vdc)
Območje PWM signala: 1 -150 kHz
Točnost frekvence: ± 2%
Izhodni tok: < 30mA
https://www.youtube.com/watch?v=qQ-eZ217v14
First, the module description:
Frequency is divided into three series:
XXX (no comma): the smallest unit is 1Hz, the range 1Hz -999Hz
XX. X (comma in ten): The minimum unit is 0.1 Khz; the range of 0.1 KHz -99.9 KHz
X.X.X. (there are three commas): the smallest unit is 1 Khz; the range 1 KHz -150 KHz
Frequency display example:
"100" indicates that the PWM output pulse is 100Hz
"54.1" indicates the PWM output pulse of 54.1 KHz
"1.2.4." Indicates that the PWM pulse output is 124 KHz
Duty Cycle in the range: 0 to 100
Three frequency duty cycle is the same, all parameters non-volatile.
Third, the parameter settings:
Module has three buttons [Set], [Up], [Down]
Press [Set] key to display four parameters (FR1: PWM1 frequency; dU1: PWM1 duty cycle; FR2: frequency of PWM2; dU2: PWM2 duty cycle), before the transfer parameters, there will be corresponding parameter name flash.
Press [Up], [Down] keys to set the current parameter value (long press can quickly add or subtract fast).
Two PWM each have three preset frequency, the frequency display interface, long press [SET] key to switch between three types of frequencies, three types of frequency duty cycle is the same value. (XXX: range 1Hz -999Hz; XX.x: range 0.1 Khz -99.9 Khz; X.X.X .: range 1 Khz -150 Khz,).
Fourth, the scope:
As a square wave signal generator that generates a square wave signal;
To send a signal to the stepper motor driver;
Adjustable pulse generation for chip use;
Produce variable pulse signal, the control-related circuit (PWM dimming, speed).
Fifth, the serial
Baud rate: 9600 bps
Data bits: 8
Stop bits: 1
Parity bit: none
Flow control: none
1, set the PWM frequency
"S1FXXXT": setting PWM1 frequency of XXX HZ (001 -999)
"S1FXX. XT": the frequency of PWM1 XX. X KHZ (00.1 -99.9)
"S1F: X.X.X.T": PWM1 frequency setting 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)
Successful return setting: DOWN;
Failback setting: FALL.
