Sell Pwm Pulse Frequency Adjustable Module Wave Signal Generator Xy-Lpwm My best price

Pwm pulse frequency occupancy ratio adjustable module square wave rectangular wave signal generator Module highlights: 1.Lcd lcd lcd display frequency and space ratio, very clear, pwm output can set frequency and space ratio respectively; - wide frequency range and high accuracy; - serial communication I. module description Pwm output, can set the frequency, the ratio of space; Frequency is divided into four ranges, switching automatically: 1. Xxx (no decimal point): the smallest unit is 1hz, with a range of values ranging from 1hz to 999hz; 2. X.xx (decimal places in hundreds) the smallest unit is 0.01 khz, with a range of 1.00 khz~9.99 khz; 3. Xx.x (decimal places in ten places): minimum unit is 0.1 khz; range of values taken is 10.0 khz~99.9 khz 4. X.x.x (decimal places in ten and hundred places): minimum unit is 1khz; range of values is 1khz~150khz E.g. Frequency display: 100 represents pulse output of pwm 100hz; 1.01 the pulse representing the output of 1.01 k by pwm; 54.1 the pulse representing the output of 54.1 khz by pwm; 1.2.4 the pulse representing the output of 124 khz by pwm; (a) the range of values taken in the space ratio: 0-100 per cent; All set parameters, save off power. Ii. parameter setting The module has 4 separate keys for setting frequency and space ratio, supporting short-term notes (adding or reducing a unit) and long-term push (increasing or decreasing rapidly), which are simple, automatically saved after setting parameters and not lost. Iii. module parameters: - working voltage: 3.3-30v; - frequency range: 1hz~150khz; - frequency accuracy: the accuracy in each range is about 2%; - signal load capacity: output current can be around 5~30 ma; - output range: pwm amplitude is equal to the supply voltage; - ambient temperature: - 20~+ 70°C. Iv. scope of application: - to be used as a square wave signal generator and to generate square wave signals for experimental development; - square wave signals used to generate control of motor drives; - generating adjustable pulses for use by mcu; - generating adjustable pulse and controlling circuit (pwm tuning speed, etc.). Serial port control (single chip ttl level communication) Communication standards: 9600 bps data bits: 8 Diskontinued: 1 Calibration position: none Flow control: cone - setting the frequency of pwm "F101 ": set frequency at 101 hz (001~999) "F1.05 ": set frequency at 1.05 khz (1.00~9.99) "F10.5 ": set frequency at 10.5 khz (10.0~99.9) "F1.0.5 ": set frequency at 105khz (1.0.0~1.5.0) - set the pwm's occupancy ratio "Dxxx ": set the pwm to xxx; (001~100) For example, for d050, setting pwm is 50% empty - read set parameters Send a read string to read the set parameters. Set a successful return: down; Set failed to return: fall.