README.md

PIC18F26Q10 Firmware For Rotary Encoders and LEDs

I2C

Transmit to Rotary PIC

Data Byte 0

Bit	Description
0	LED1 On/Off
1	LED2 On/Off
2	LED3 On/Off
3	LED4 On/Off
4	LED5 On/Off
5	LED6 On/Off
6	Unused
7	Unused

Data Byte 1

Bit	Description
0	Encoder 1 Polarity
1	Encoder 2 Polarity
2	Encoder 3 Polarity
3	Encoder 4 Polarity
4	Unused
5	Unused
6	Unused
7	Unused

Receive from Rotary PIC

Data Byte	Type	Description
0	Signed 8bit-int	Rotary Encoder 1 Delta
1	Signed 8bit-int	Rotary Encoder 2 Delta
2	Signed 8bit-int	Rotary Encoder 3 Delta
3	Signed 8bit-int	Rotary Encoder 4 Delta
4	Bit Mask	Switch States

All rotary encoder values are reset to zero after being read.

Switch State Bits

Bit	Description
0	SW1 State (On/Off)
1	SW1 Did Change
2	SW2 State (On/Off)
3	SW2 Did Change
4	Unused
5	Unused
6	Unused
7	Unused

Switch state (on/off) values are read directly from the current state of the pin. The did change state is reset after being read.