Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display For Sale
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Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display:
Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display
Description:Module highlights:1.LCD liquid crystal display frequency and duty cycle, clear, PWM output can set the frequency and duty cycle;2 wide frequency range, high precision;3. Can be serial communicationFirst, the module descriptionPWM output, you can set the frequency, duty cycle;Frequency is divided into four ranges, automatic switching:1.XXX (without decimal point): The minimum unit is 1Hz, the range of 1Hz ~ 999Hz;2.X.XX (decimal point in the hundred) The smallest unit is 0.01Khz, the value range 1.00Khz ~ 9.99Khz;3.XX.X (Decimal places in the tens place): The smallest unit is 0.1Khz; The value range is 10.0KHz ~ 99.9KHz4.X.X.X (Decimal places in the tens place and hundreds places): The minimum unit is 1Khz; The value range 1KHz ~ 150KHzeg frequency display: 100 said PWM output 100Hz pulse;1.01 PWM output 1.01K pulse;54.1 PWM output 54.1KHz pulse;1.2.4 PWM output 124KHz pulse;Duty cycle value range: 0 ~ 100%;All setting parameters, power-down save.Second, the parameters setModule
has 4 independent keys, used to set the frequency and duty cycle,
support for short press (increase or decrease a unit) and long press
(quickly increase or decrease), simple, set the parameters automatically
save, power loss is not lost .Third, the module parameters:1. Working voltage: 3.3 ~ 30V;2. Frequency range: 1Hz ~ 150KHz;3. Frequency accuracy: the accuracy of each range is about 2%;4. Signal load capacity: the output current can be about 5 ~ 30ma;5. Output amplitude: PWM amplitude and supply voltage equal;6. Ambient temperature: -20 ~ +70 ℃.Fourth, the scope of application:1. Used as a square wave signal generator to generate square wave signal for experimental development and use;2. used to generate a square wave control motor drive signal;3. Generate adjustable pulse for MCU use;4. Generate adjustable pulse, control the relevant circuit (PWM dimming speed and other applications).Fifth, the serial port control (one-chip computer TTL level communication)
Communication standard: 9600 bps Data bits: 8Stop bit: 1
Check digit: none
Flow control: none1, set the frequency of PWM"F101": Setting frequency is 101 HZ (001 ~ 999)"F1.05": Setting frequency is 1.05 KHZ (1.00 ~ 9.99)"F10.5": Setting frequency is 10.5KHZ (10.0 ~ 99.9)"F1.0.5": Setting frequency is 105KHZ (1.0.0 ~ 1.5.0)2, set the duty cycle of PWM"DXXX": set the duty cycle of PWM to XXX; (001 ~ 100)For example, D050, set the PWM duty cycle is 50%3, read the setting parametersSend "read" string, read the set parameters.Set successfully returned: DOWN;Setting failed to return: FALL.
1 x Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display
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