PROFI 03 rectangular pulse generator with potentiometer

Profi 03 rectangular pulse generator made on a microcontroller with a fixed startup ramp. Rectangular Pulse Generator Profi 03 was designed on a micro controller to precisely generate pulses for clocking stepper motor controllers also can clock servo motors or inverters. It allows you to control a stepper motor without having to connect it to a computer or other advanced controller. Thanks to the generator, we can smoothly regulate the speed of the motor.The frequency of pulses from the generator is from 0 to 100kHz allows us to achieve more than 8,000 revolutions per minute on our stepper motors. The circuit generates a 5V symmetrical rectangular waveform (CMOS) and has a built-in divider to increase the precision of setting the selected frequency. The frequency can be adjusted in set mode while driving with buttons.Switching on and off the generator in automatic mode with buttons. The generator has a ramp when starting and slowing down this is useful at higher speeds. On the generator board there are connectors to which we can connect external keys or by switching on or off the first 4 jumpers we change the direction of rotation of the engine. The next two jumpers are used to set the automatic mode.Start stop from the buttons on the board. In automatic mode, after starting with external buttons, we change the direction of the motor.To the direction keys can be connected to the limiters, in automatic mode the motor will drive from limiters to limiters. Changing the position of the jumper while the generator is running can damage the generator. Small dimensions allow the generator to be mounted near the device. The generator is reduced to testing stepper motor drivers and also to control various types of feeders, edgers, turntables, other devices. The generator is used to generate pulses with a preset frequency, which can be selected in one of eleven ranges. Possible ranges and frequencies are shown in the table. Connectors: VCC - power supply (8-12VDC)GND - ground. DIR - +5V stepper motor rotation directionGND - ground PUL - + 5V PWM signal output. Output current capacity; 30 mAW Dimensions length 43 mm; width 47 mm