add mcp

1 files changed, 28 insertions, 0 deletions

diff --git a/MCP23017/with_lib/with_lib.ino b/MCP23017/with_lib/with_lib.ino
new file mode 100644
index 0000000..f99065a
--- /dev/null
+++ b/MCP23017/with_lib/with_lib.ino
@@ -0,0 +1,28 @@
+/** Inputs.ino
+ * Sets port 7 on bank B to INPUT_PULLUP and copies its
+ * state to the built-in LED on the board
+ * https://github.com/ndomx/MCP23017-Arduino-Library
+ */
+
+#include <mcp23017.h>
+
+#define MCP_ADDR (0)
+
+MCP23017 mcp(MCP_ADDR);
+
+void setup(void)
+{
+    Serial.begin(9600);
+    pinMode(LED_BUILTIN, OUTPUT);
+
+    mcp.start();
+    mcp.pinMode(GPB7, INPUT_PULLUP);
+}
+
+void loop(void)
+{
+    byte mcp_input = mcp.digitalRead(GPB7);
+    digitalWrite(LED_BUILTIN, mcp_input);
+    Serial.println(mcp_input);
+    delay(500);
+}