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Parameter
1, size: 3.1CM*2.2CM
2, main chip: NE555
3, input voltage: 5V-15VDC. When 5V, output current is about 15MA; when 12V, output current is about 35MA
4, input current: 100MA
5, output amplitude: 4.2V V-PP to 11.4V V-PP. (according to the different input voltage, output amplitude will not same)
6, the maximum output current: 15MA (≥ 5V power supply, V-PP is greater than 50%), 35MA (≥ 12V power supply, V-PP is greater than 50%)

Application
1 as a square wave signal generator, square wave signals are generated for experimental use
2 for generating a driving stepping motor driver square wave signal
3 adjustable pulse for MCU to use
4 adjustable pulse, control circuit

Characteristic
1, output with LED indication, there is no output straightforward (low LED, high LED, low frequency LED flashing)
2, the range of output frequency grade optional, so that the output frequency can be adjusted continuously
Low frequency: 1Hz ~ 50Hz
Middle frequency: 50Hz ~ 1kHz
Little high frequency: 1KHz ~ 10kHz
High frequency: 10kHz ~ 200kHz
3, output duty cycle can be fine tuned, duty ratio and frequency are not adjustable, adjustable duty ratio would change frequency
4, the output frequency is adjustable
Cycle T=0.7 (RA+2RB) C
RA, RB 0-10K adjustable
Low frequency file C=0.001UF
If file C=0.1UF
High frequency file in C=1UF
High frequency file C=100UF, so you can calculate frequency waveform

If need detail data, please contact to me