You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
The **SparkFun I2C Expander Library** makes working with 4-bit and 8-bit I2C digital I/O expanders very easy. These expanders can read or write four or eight separate I/O.
24
+
25
+
The following ICs are supported:
26
+
27
+
* PCA9534/TCA9534
28
+
* PCA9536/TCA9536
29
+
* PCA9537/TCA9537
30
+
* PCA9554/TCA9554
31
+
* PCA9556/TCA9556
32
+
* PCA9557/TCA9557
33
+
* And maybe others...
34
+
35
+
This library supports using alternate Wire ports (ie, Wire1, etc) as well as alternate I2C addresses and includes support for interrupt pin errata (PCA9554).
36
+
37
+
This library supports standard `pinMode`, `digitalRead`, and `digitalWrite` functions.
0 commit comments