At home I have a few electrical Rolling Shutters that are controlling via a switch with which you can let them go up or down. When the Rolling Shutter reaches the end of its up or down movement, the motor of the Rolling Shutter stops automatically and you can put the switch that controls it …
Parallel Port 3 Axis CNC Driver, Opto-Isolated, Unipolar Steppers Controls 3 Unipolar Stepper Motors, for use with CNC Machines. Simple driver with automatic coil shutdown, to ensure efficient operation. Opto-isolated for protection of the P.C. Supports most parallel port based CNC software, such as KCAM. Supports up to 20 watts per Phase. Or 2 Amps …
Background There are a number of other projects that have been documented for brushed motor ESCs. The good starting point for other ESCs is this rcgroups thread. The information in the Microchip AN847 is also very useful. Most of these designs are very similar, the variation between designs is typically in the PIC used to control the ESC, …
Brushed Motor ESC using PIC12F675 microcontroller Read More »
Background From the first robot I ever made, I have always felt that when designing the motors, wheels and drive train, it will almost always be important to know where you are – that is, to have some sort of encoder feedback. So the first robot I built used stepper motors, but I found that …
Designing a PID Motor Controller using PIC16F876 Read More »
Revision History 28 Jan, 2002 – Bug found in 8 Servo motor variant, refer to 8 servo code page for details. 28 Oct, 2001 – Serial Transfer Bug found. Dec, 2005 – This project is no longer supported. The information is here for you to use. A new version of the PIC Servo controller is in the …
If you do not have EAGLE, you can download a full working version from CadSoftUSA http://www.cadsoftusa.com Here is a zip file with the EAGLE schematics and PCB layout. http://hans-w.com/MotorSpeedEAGLE.zip New ! Source code available C source code… requires CCS PCM compiler. PCM is available from CCS http://www.ccsinfo.com/picc.shtml //(C)Copyright 2002 Hans Wedemeyer Houston Texas U.S.A // for use with …
DC motor speed control using PWM using PIC16F876 Read More »
Since I finished my degree in April, I have been looking for work. The search has been slow but hopefully soon I will be making the big bucks. To fill my spare time I decided to do something with the mounds of electronics and such sitting in my room. First is to build a robot …
Description There are lots of designs on the Internet for DC power controllers using Pulse Width Modulation (PWM) to control the speed of a motor or power to a resistive load. Most of these use analogue methods to generate the PWM signal which in turn drives a power MOSFET or transistor. When I wanted a …
A Stepper Motor is a brushless, synchronous DC motor which divides a full rotation into a number of steps. For detailed information on working, types and stepping modes, refer the article on Stepper Motors. Here the operation of a unipolar Stepper motor with PIC18F4550 microcontroller has been explained. As stated earlier, a Stepper motor rotates step by step. Each stepper motor has …
How to interface Stepper Motor with PIC18F4550 Microcontroller Read More »
Infrared proximity sensors are very fun to play with. In the past we have used them to make Digital Theremins and Control Robots, always using its proximity sensing (how far away an object is from the sensor) as the main feature. Today, we’re going on a quest to use an infrared proximity sensor, to control the speed of …
