Function Description:
1: Output terminal of the output square wave signal, the amplitude is approximately equal to input voltage.
2: Output duty cycle is not adjustable, basic stability of duty cycle of the output signal in the process of adjusting the frequency (50% -65%).
3: Frequency through built-in multi-turn potentiometer adjustment, adjustment range: L version is 0.8Hz-60Hz;H Verson is 50Hz-6kHz
4: 3P 2.54mm Pin header

Power:
Supply Voltage DC 5V-15V , No-load current is about 3mA.
Output drive current:
The output circuit is capable of sinking or sourcing current up to 200 mA. Operation is specified for supplies of
5 V to 15 V. With a 5-V supply, output levels are compatible with TTL inputs.

Uses:
Used as signal source in the circuit;

Method of use:
1. Input power then work ;
2. Terminated with a power supply filter capacitor 0.1uf to be more stable.
3. Clockwise adjustment potentiometer, frequency increases, adjustment potentiometer counterclockwise, frequency decreases.
4: Size: 14* 10.5 * 7.4mm（Very small）
5: Weight: 1.4g

Note:
1. Above parameters are measured at 5V, may be different in other voltage.
2. This product is not a sophisticated circuit, not suitable for high precision.