Item Name: HW-515 DC 2CH PWM Signal Generator Duty Cycle Pulse Frequency Module Board. Smart TV Box Android Quad Core HDMI 1080P Wifi Streaming Media Player UK
HW-515 Micro USB DC 2CH Adjustable PWM Signal Generator Duty Cycle Pulse Frequency Module Board Digital LED Display Tube
Descriptions:
The frequency is divided into three ranges:
XXX (without decimal point): the smallest device is 1 Hz, the range is 1 Hz ~ 999 Hz
XX.X (Decimal point in ten): The minimum block is 0.1 kHz 0.1 kHz ~ 99.9 kHz
XXX (there are Three decimal points): the smallest block is 1 kHz 1 kHz ~ 150 kHz range
Display frequency, for example:
"100" means output PWM pulse 100 Hz
"54.1" means that the output of the PWM pulse is 54.1 kHz
"1.2.4". Indicates that the PWM pulse output is 124 kHz
Duty cycle in the range: from 0 to 100
The three-frequency duty cycle is the same, all parameters are non-volatile.
Parameter settings:
The module has three buttons (set), (up), (down)
Press (set) to switch the display with four parameters (FR1: PWM1 frequency dU1: PWM1 duty cycle FR2: frequency PWM2 dU2: PWM2 duty cycle), before passing the parameters, there will be a corresponding parameter name flash.
Press (up), (down) keys to change the current parameter value (long press can quickly add or subtract quickly).
Two PWM each has three preset frequencies, frequency display interface, long press (set) key to switch between three types of frequencies, three kinds of frequency cycle is the same value. (XXX: 1 Hz ~ 999 Hz XX. X: 0.1 kHz ~ 99.9 kHz XXX: 1 kHz ~ 150 kHz,).
Set PWM frequency
"S1FXXXT": PWM1 XXX HZ Frequency Setting (001 ~ 999)
"S1FXX. XT": Set the frequency of the PWM1 XX. X kHz (00.1 ~ 99.9)
"S1F: XXXT": tuning the frequency PWM1 XXX kHz (0.0.1 ~ 1.5.0 ..)
'S1': PWM1
'S2': PWM2
'F': frequencies
D: Duty cycle
'T'-final flag
Install PWM Duty Cycle
"S1DXXXT": Installing PWM1 Duty Cycle XXX (001 ~ 100)
"S2DXXXT": set PWM2 Duty Cycle XXX (001 ~ 100)
Setting a successful return: down
Setup failover: drop.
Features:
Two independent PWM generators can set the frequency, duty cycle
Wide frequency range, high accuracy
You can order a series of communication.
Specifications:
Operating voltage: 5-30V, support for micro USB 5.0 in power
Frequency range: 1 Hz ~ 150 kHz
Frequency accuracy: 2%
Output current:
