Keven Gomes / Mbed 2 deprecated 199_TESTER

This is a remote control tester, it uses a CNC, Ethernet Communication with a JAVAFX interface and a PLC in order to control some valves.

Dependencies:   EthernetInterface mbed-rtos mbed

Fork of CNC_CONTROLLER by Lahis Almeida

Diff: PCF8574.cpp

Revision:
2:835c883d81b0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PCF8574.cpp	Fri Dec 15 19:40:41 2017 +0000
@@ -0,0 +1,28 @@
+#include "PCF8574.h"
+#include "mbed.h"
+
+PCF8574::PCF8574(PinName sda, PinName scl, int address)
+        : _i2c(sda, scl) {
+    _address = address;
+}
+
+int PCF8574::read(int port) {
+    char foo[1];
+    int num,r,i=0;
+    int bin[8];
+    _i2c.read(_address, foo, 1);
+    num = foo[0];
+     while(num!=0){
+        r = num%2;
+        bin[i++] = r;
+        num /= 2;
+    }
+    return(bin[port]);
+}
+
+void PCF8574::write(int data) {
+    char foo[1];
+    foo[0] = data;
+    _i2c.write(_address, foo, 1);
+}
+