diff options
| -rw-r--r-- | i2c.h | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -5,6 +5,7 @@ #define Second_Dly_Port 1 /* PCF8574 at three-bit address 1 is for dual delay board (obsolete, was for AVX-DD-A3-PS-TC) */ #define To_Self_Cal_Port 2 /* PCF8574 at three-bit address 2 is for self-cal PCB 226A */ #define From_Self_Cal_Port 3 /* PCF8574 at three-bit address 3 is for self-cal PCB 226A */ +#define Octal_Relay_Driver 4 /* PCF8574 at three-bit address 4 is for octal relay driver, PCB 244A */ #define PCF8574A 0x38 /* Main I2C peripheral device */ #define Button_Press_Port 0 /* PCF8574A at three-bit address 0 is for detecting button presses */ |