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LiHuashen
81 lines
1.9 KiB
Arduino
81 lines
1.9 KiB
Arduino
// NeoPixel Ring simple sketch (c) 2013 Shae Erisson
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// released under the GPLv3 license to match the rest of the AdaFruit NeoPixel library
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//15/11/10/14 7/3/2/6
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#include <Wire.h>
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#define Set_Bit(val, bitn) (val |=(1<<(bitn)))
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#define Clr_Bit(val, bitn) (val&=~(1<<(bitn)))
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#define Get_Bit(val, bitn) (val &(1<<(bitn)) )
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#define GetCoder (PINC&0b00000011)
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#define CoderA 0b000
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#define CoderB 0b10
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#define CoderC 0b11
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#define CoderD 0b01
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int CoderCount = 0, OldCoder = 0;
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unsigned char CODER;
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void encoderEvent()
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{
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switch (OldCoder)
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{
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case CoderA: OldCoder = GetCoder;
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switch (OldCoder)
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{
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case CoderA: break;
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case CoderB: if (CoderCount > -127)CoderCount--; break;
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case CoderC: break;
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case CoderD: if (CoderCount < 127)CoderCount++;break;
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} break;
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case CoderB: OldCoder = GetCoder;
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switch (OldCoder)
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{
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case CoderA: if (CoderCount < 127)CoderCount++; break;
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case CoderB: break;
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case CoderC: if (CoderCount > -127)CoderCount--;break;
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case CoderD: break;
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} break;
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case CoderC: OldCoder = GetCoder;
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switch (OldCoder)
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{
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case CoderA: break;
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case CoderB: if (CoderCount < 127)CoderCount++; break;
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case CoderC: break;
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case CoderD:if (CoderCount > -127)CoderCount--; break;
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} break;
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case CoderD: OldCoder = GetCoder;
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switch (OldCoder)
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{
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case CoderA: if (CoderCount > -127)CoderCount--; break;
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case CoderB: break;
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case CoderC: if (CoderCount < 127)CoderCount++;break;
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case CoderD: break;
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} break;
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}
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}
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void setup()
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{
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DDRB=0x00;
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PORTB=0xff;
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DDRC = 0x00;
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PORTC = 0x07;
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Wire.begin(0x62);
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Wire.onReceive(receiveEvent);
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Wire.onRequest(requestEvent);
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}
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void receiveEvent(int howMany)
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{
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}
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void requestEvent()
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{
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Wire.write(CoderCount);
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if((PINB&0b00000100)==0)
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Wire.write(1);
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else
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Wire.write(255);
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CoderCount = 0;
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}
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void loop()
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{
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encoderEvent();
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}
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