Today manage to get it to work, flashing for 7 seconds.
At first the software fails, after build a new project, it starts to work again.
I am grateful for the boss to help me in the connector, soldering,
2 volt it also runs.
The relay is toshiba brand for 5 volt dc to 240 ac.
Weeks of thinking, trying, I finally get it to work!
Patenice is worth the wait.
Now is to get the software to run the alert the moment it has new orderid or returnid.
The testing show a negative volt when low. It is only 3 volt when high. Very strange as my measurement is 7.5 volt at office. Maybe I should buy a soundtech digital next time I come sim lim tower.
I am very grateful of the boss, helping me and charging at such a low cost.
I observe he solder, he
1. Solder on the component
2. Add flux on the component a lot.
When solder pin at serial port,
1. Leave flux on table
2. Solder the flux with a wire
3. Move the wire to the serial port
4. Solder the wire with the pin
When pc start up, it will have a 4 counts flashing.
I go there 4 times.
First time to find relay and ask price.
Second time with my num lock idea, but can only get 2 volt.
Third time, to buy transistor to produce 5 volt
Four time, it works!
Ah Meng is working on the cover opening for the dc and ac cables. He is interested in the stand too.
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