Lotfi Baghli / Mbed 2 deprecated Weather_WT440H

Decode routine for weather station WT440H or WT450H

Dependencies:   mbed

This piece of software decode Weahter station temperature and humidity freeware, by Lotfi BAGHLI, March, 2013

I hacked the TX WT440H, got 2 wires out (GND and DATA), http://www.upm-marketing.com/products/wd633+wt440h.html

I still want to get the data from a RX one (WS738) or a simple 433 MHz RX but signal pbs not yet solved In fact, from the builtin RX of the Weather station, it is ok, but from the external RX, the range is very small : 20 cm :-(

thanks to Jaakko Ala-Paavola, http://ala-paavola.fi/jaakko/doku.php?id=wt450h

for the protocol and decode routine

Connect 2 wires to the MBED : GND and Data Signal to p18

Temperature and Humidity are displayed on the Serial via USB of the MBED /media/uploads/lotfi_baghli/protocol_wt440.png

Files at this revision

API Documentation at this revision

Revision 6:74430c7239b7, committed 2013-03-30

Comitter:
lotfi_baghli
Date:
Sat Mar 30 18:42:02 2013 +0000
Parent:
5:71e7b4276a31
Commit message:
Weather_WT440H decode

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Sat Mar 30 18:22:39 2013 +0000
+++ b/main.cpp	Sat Mar 30 18:42:02 2013 +0000
@@ -1,4 +1,14 @@
 #include "mbed.h"
+// This piece of software decode Weahter station temperature and humidity
+// freeware, by Lotfi BAGHLI, March, 2013
+// I hacked the TX WT440H, got 2 wires out (GND and DATA)
+// I still want to get the data from a RX one (WS738) or a simple 433 MHz RX but signal pbs not yet solved
+//
+// thanks to Jaakko Ala-Paavola, http://ala-paavola.fi/jaakko/doku.php?id=wt450h
+// for the protocol and decode routine
+//
+// Connect 2 wires to the MBED : GND and Data Signal to p18
+// Temperature and Humidity are displayed on the Serial via USB of the MBED
 
 DigitalOut myled(LED1);
 DigitalOut led2(LED2);
@@ -166,7 +176,7 @@
         wait(1);
         if (oldj != j)
             {
-        pc.printf("j:%d, Data: NET:%d ID:%d RH:%d T:%d.%d  TIME:%s", j, net, id, rh, t_int, t_dec, ctime(&t));
+        pc.printf("j:%d, Data: NET:%d ID:%d RH:%d T:%d.%d  TIME:%s\r", j, net, id, rh, t_int, t_dec, ctime(&t));
         oldj=j;
         }