48 lines
1.2 KiB
Markdown
48 lines
1.2 KiB
Markdown
# AVR_ENCODER
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This is small library for rotary encoders often found being used for controls
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or volume knobs in embedded platforms.
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The recomended way to use the code is by calling the poll_encoder() function
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in the C file.
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This allows the use of polling for monitoring the state of the encoder. This
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should be fine for most applications that don't require interrupts for encoder
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use.
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The only issue would be if running the AVR at very very low speed and
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preforming too many other taskts to the point that the polling loop doesn't
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capture the full wave form from the encoder. But this is a well known weakness
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in polling.
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## Demo Funciton:
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```C
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//This is just an example function of how you could use it.
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int demo() {
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init_encoder();
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uint8_t volume = 0;
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led_blink(2);
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while(1) {
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switch(poll_encoder()) {
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case CW:
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if(volume < 100){volume++;}
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led_blink(1);
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break;
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case CCW:
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if(volume > 0){volume--;}
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led_blink(2);
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break;
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default:
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;//nothing.
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}
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//Do other polling operations here
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}
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return 0;
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}
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```
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