communication Multiplex data and LED pin


Posted on Feb 4, 2014

Performing a chip conversion for the Sparkfun LED RingCoder. The sample code provided with the product works well on an Arduino UNO, but it uses a pin for each I/O - 5 pins for the shift registers and 6 pins for the RGB rotary encoder. What I want to do is use a 6 I/O Tiny85 instead of a full-blown UNO. So I would like to re-use 5of the 6 pins available and delegate between FSM states. That said, it looks like the three


communication Multiplex data and LED pin
Click here to download the full size of the above Circuit.

RGB LEDs will have to share a line with the shift register data/latch/clk etc. Why an ATtiny85 There is so much in between an ATmega328 an an ATtiny85. Can you extend your circuit diagram with what your idea would look like jippie May 11 `13 at 15:33 I just realized that /OE shares with Rotary Encoder B, clearly a problem. /OE would probably work better sharing with Switch. npc May 11 `13 at 16:07




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    GP display controller
    Electrometer amplifier with overload protection
    25W HiFi Audio Amplifier with MOSFET
    How to Make a Cell Phone RF Signal Detector Circuit
    2 Channels RF remote control
    laser tag game multi player
    Experiments with flybacks
    Commodore 64 Keyboard Joystick & Paddle Interfaces
    Multi-Colour LED
    Crosswalk Pedestrian Signal and Homemade Controller
    regenerative radio receivers
    SF04E emission circuit diagram composed SF04B
    A motor reversing automatic adjustment circuit
    Crystal oscillator circuit consists of several gates as the d



    Top