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Tutorial 9 - Light Dimming Demo (Free)
Out-of-Stock
  • Tutorial 9 - Light Dimming Demo (Free)
  • Tutorial 9 - Light Dimming Demo (Free)
  • Tutorial 9 - Light Dimming Demo (Free)
  • Tutorial 9 - Light Dimming Demo (Free)

Tutorial 09 - Light Dimming Demo (Free)

Specific References

Qty

This program shows how to use ULN2003A and PWM mode to control light dimming.

This program shows how to use ULN2003A and PWM mode to control light dimming. When program run, the DC light will dim from dark to bright. This tutorial will work with the Hi-Tech C compilers. 

 

PWM (Pulse-width modulation) Operations:

  • PWM Period = [(PR2) + 1] x 4 x Tosc x (TMR2 Prescale Value)
  • Pulse Width = (CCPRxL:CCPxCON) x Tosc x (TMR2 Prescale Value)
  • Duty Cycle Ratio = (CCPRxL:CCPxCON)/4(PR2 + 1)
  • Tosc = 1 / Fosc


iBoard connection:

  • RC2(CCP1): ULN2003A Module (O3): LED Light (-)
  • * (12Vdc): ULN2003A Module (*): LED Light (+)

 

  Video:

  • Tutorial 9 - Light Dimming Demo: Video

 

  

 

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