Control stepping motor via USB interface by PIC18F4550

This is an example that demonstration how to control some devices via USB interface.The PC software program with delphi. Feature: – CPU PIC18F4550 with full speed USB interface at 48MHz. – USB 2.0 compliance – Use on-chip USB driver – Control 1 stepping motor. – MPLAB C18 for firmware at USB devices side. – Delphi 6 for PC Host software. USB devices side Figure 1. is the schematic for this example.PIC18F4550 is the main devices that communicate with PC and control stepping motor. The power supply came from +5V Vbus for circuit except +Vmotor which must use external power supply that depend on stepping motor requires. If you add more components into circuit that drawn total current more than 250mA you should be use +5V external power supply instead Vbus.Becuase Vbus can supplies current not more than 250mA and don’t forgot to disconnect Vbus out of circuit.

Read More Source:http://www.sixca.com/eng/articles/usbstepping/index.html

http://electronics-diy.com

4 Channel DMX512 Driver
This project is a 4 channel DMX512 driver board. It features four power MOSFETs that can be configured to operate in PWM mode or as on/off outputs. The driver can be configured to use any four con ...
24VDC Motor Speed Control with 20A Shot Circuit Protection
This be Motor Speed Control Circuit 24 Volt at current 20Amp. By it uses IC SG3526Bcontrol in the character PWM that receive like very much and drive motor with power Mosfet number IRFP74 ...
Stepper Motor Controller by ULN2003
Stepper Motor Controller Connection Diagrams Four-Wire Connection The ULN2003 / MC1413 is a 7-bit 50V 500mA TTL-input NPN darlington driver. This is more than adequate to control a four phase uni ...
Simple DC Motor Control
circuit was built to operate a small motor used for opening and closing a pair of curtains. As an advantage over automatic closing and opening systems, you have control of how much, or how littl ...
74LS194, 74LS04 drive a stepper motor
There are so many ways to drive a stepper motor, Here is another circuit that use 74LS194 4 bit bi-directional universal shift register as a phase generator and UDN2543B to drive the unipolar step ...