Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display 1Hz-150Khz 3.3V-30V PWM Board Module

3 CH LCD display

Specification: Working voltage: 3.3 ~ 30V Frequency range: 1Hz ~ 150KHz Frequency accuracy: the accuracy in each range is about 2% Signal load capacity: the output current can be about 5 ~ 30ma Output amplitude: PWM amplitude equal to the supply voltage Ambient temperature: -20 ~ 70 degree Features: LCD display frequency and duty cycle, very clear, PWM output can be set to the frequency and duty cycle. Wide frequency range, high precision. Serial communication, TTL level. Used as a square wave signal generator, generate square wave signal for experimental development and use. Used to generate a square wave signal that controls the motor driver. Generate adjustable pulse for MCU use. Generate adjustable pulse, control the relevant circuit (PWM dimming speed and other applications). Serial control (single-ch TTL level communication). Fine workmansh and good performance. Stable and reliable. Easy to use. Long service life. Frequency is divided into four ranges, automatic switching: 1. XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz ~ 999Hz; 2. X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz ~ 9.99Khz; 3. XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz ~ 99.9KHz 4. X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz ~ 150KHz 5. e.g. frequency display: 100 indicates PWM output 100Hz pulse; 1.01 indicates PWM output 1.01K pulse; 54.1 indicates that the PWM output has a pulse of 54.1 kHz; 1.2.4 indicates that the PWM output is 124 kHz pulse; 6. Duty cycle range: 0 ~ 100% Parameter Settings: The module has four independent keys, used to set the frequency and duty cycle. Support touch (increase or decrease a unit) and long pre (fast increase or decrease). The parameters automatically save, power down Not lost. Communication Standard: 9600 bps Data bits: 8 Stop bit: 1 Check digit: none Flow control: none 1>. set the frequency of the PWM "F101": Set the frequency to 101 HZ (001 to 999) "F1.05": set the frequency of 1.05 KHZ (1.00 ~ 9.99) "F10.5": Set the frequency to 10.5KHZ (10.0 ~ 99.9) "F1.0.5": set the frequency of 105KHZ (1.0.0 ~ 1.5.0) 2>. set the PWM duty cycle "DXXX": set the PWM duty cycle to XXX; (001 ~ 100) Such as D050, set the PWM duty cycle is 50% 3>. read the set parameters Send a "read" string to read the set parameters. Set succefully return: DOWN. Setup failed to return: FALL.

2 Channel PWM Signal Genenrator

Feature:

Two independent PWM generators can control the frequency, duty cycle

The wide frequency range, high accuracy

Can serial communication

First, the module descrtion:

Frequency is p>

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.

Parameter:

Working voltage: 5--30V, support micro USB 5.0 V power supply

Frequency range: 1Hz -150 KHz

The frequency accuracy: ± 2%

Output current: