Diff: AQM1602XA.cpp

Revision:

0:933748ca1307

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AQM1602XA.cpp	Sun Apr 24 11:50:38 2016 +0000
@@ -0,0 +1,44 @@
+#include "AQM1602XA.h"
+
+AQM1602XA::AQM1602XA(PinName sda, PinName scl, char slave_adr)
+    : wire(sda, scl) {
+    address = slave_adr;
+    initialize();
+}
+
+
+void AQM1602XA::writeCommand(char cmd) {
+    char bytes[2];
+    bytes[0] = 0x00;
+    bytes[1] = cmd;
+    wire.write(address, bytes, 2);
+    wait(0.01);
+}
+        
+void AQM1602XA::writeData(char data) {
+    char bytes[2];
+    bytes[0] = 0x40;
+    bytes[1] = data;
+    wire.write(address, bytes, 2);
+    wait(0.001);
+}
+
+void AQM1602XA::initialize() {
+    char cmd[] =  {0x38, 0x39, 0x14, 0x73, 0x56, 0x6c, 0x38, 0x01, 0x0c};
+    wait(0.1);
+    for(int i = 0; i < 9; i++) {
+        writeCommand(cmd[i]);
+    }    
+}
+
+void AQM1602XA::printString(int row, char *str) {
+    int len = strlen(str);
+    if(len > 16)
+        len = 16;
+    if(row == 1) {
+        writeCommand(0x40 + 0x80);
+    }
+    for(int i = 0; i < len; i++) {
+        writeData(*(str + i));
+    }
+}
\ No newline at end of file