8 Channel PWM LED Chaser PIC 16F628A

  

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Inside:
PIC Microcontroller Circuits / Microcontroller Circuits
This neat little circuit provides 8 LEDs directly driven from the PIC along with a single mode control switch. The firmware elsewhere on this page drives the LEDs with a 5 bit PWM signal providing each of the 8 LED channels with four levels of intensity; off, dim, mid, bright. A number of sequences are programmed into the firmware to provide some interesting visual effects and chase sequences, including the classic effect seen on the car in the Knight Rider TV series.

The design is deliberately simple with each LED being directly driven from a PIC I/O pin. This and the inclusion of an in-circuit programming header (ICSP) make the circuit ideal for teaching/learning introductory PIC assembly language programming. Ho

News


  • Markets.co
    Its product portfolio comprises 8-bit, 16-bit, and 32-bit and 16-bit dsPIC digital signal controllers, which feature on-board Flash memory technology. The company was founded on Feuary 14, 1989 and is headquartered in Chandler, AZ.
     5 May 2016
  • Earnings Call Transcript
    Seeking Alpha
    Phoenix Business Journal Ladies and gentlemen, please stand by. We're about to begin. Good day, everyone, and welcome to this Microchip Technology Fourth Quarter and Fiscal Year 2016 Financial Results Conference Call. As a reminder, today's c
     5 May 2016
  • ExtremeTech
    ExtremeTech runs on radio waves, can be reprogrammed in the fieldWhile the CPU in question is exceedingly weak by modern standards (it's a RISC-derived 16-bit clocked at just 16MHz), it's an order of magnitude more powerful than any oth
     26 April 2016
  • CWRU Observer
    It also offers development tools that enable system designers to program for specific applications; analog, interface, and mixed signal products comprising power management, linear, mixed-signal, high-voltage, thermal management
     15 April 2016
  • CWRU Observer
    It also offers development tools that enable system designers to program for specific applications; analog, interface, and mixed signal products comprising power management, linear, mixed-signal, high-voltage, thermal management
     12 April 2016
  • CWRU Observer
    News Oracle It also offers development tools that enable system designers to program for specific applications; analog, interface, and mixed signal products comprising power management, linear, mixed-signal, high-voltage, thermal management
     8 April 2016
  • CWRU Observer
    The Vista Voice It also offers development tools that enable system designers to program for specific applications; analog, interface, and mixed signal products comprising power management, linear, mixed-signal, high-voltage, thermal managem
     6 April 2016
  • EE Times
    EE Times 15) announced a new cloud-based integrated development environment (IDE) for the company's . According to Microchip (Chandler, Ariz.), the free MPLAB Xpress cloud-based IDE is the easiest way for users to get started with MCUs,&
     16 February 2016
  • Market Realist
    According to research firm Gartner (IT), Microchip (MCHP) reclaimed the top position in terms of revenue in the 8-bit segment in 2014. The company also grew its market share in 8-bit, 16-bit, and 32-bit multipoint control units (or MCUs
     3 September 2015

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