Lahis Almeida / Mbed 2 deprecated PCF8574_MBED

This chip is a port expansor, thal "speak" to master through I2C communication.

Dependencies:   mbed

Fork of PCF8574 by Simon Ford

Diff: main.cpp

Revision:
2:e5a4a2d24864
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jun 08 13:31:05 2017 +0000
@@ -0,0 +1,25 @@
+#include "mbed.h"
+DigitalOut debugPin(LED1);
+DigitalOut debugPin1(LED2);
+I2C i2c(p28, p29);        // sda, scl
+Serial pc(USBTX, USBRX); // tx, rx
+
+const int addr = 0x40; // define the I2C Address
+
+int main() {
+    char cmd[2];
+    
+    while(1) {
+        debugPin1 = 1;
+        cmd[0] = 0x40;            // pointer to command register
+        cmd[1] = 0x00;            // pointer to command register
+        //i2c.start();
+        i2c.write(addr, cmd, 2); // Send command string
+        //i2c.stop();
+        wait(1); 
+        debugPin1 = 0;
+        wait(1); 
+                     // Could also poll, 65ms is typical
+
+    }
+}
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