See: https://github.com/EEEManchester/Food-Computer

Dependencies:   DHT DS1820 MODSERIAL ModbusSlave232 SoftSerial TSL2561_I2C mbed millis

Fork of ModbusRTU-RS232 by Afdhal Atiff Tan

Revision:
4:796586b35695
Parent:
1:77e7cf856fae
Child:
5:4503f4d054ba
--- a/main.cpp	Thu Jul 28 15:14:30 2016 +0000
+++ b/main.cpp	Thu Jul 28 16:00:51 2016 +0000
@@ -6,7 +6,8 @@
 void update_modbus() //check for request and update relays
 {          
         led1 = !led1;  //for debug 
-        mbs.update(regs, MB_REGS);
+        if (mbs.update(regs, MB_REGS))
+        {led3 = !led3;}
 
         R0 = (regs[MB_9] & (0x0001<<0)); 
         R1 = (regs[MB_9] & (0x0001<<1));