opening atill from in Access Form

[Ian Collins]

Hi All,

I need to open a till draw connected to a serial port from within access.
Does anyone have any idea how I am going to do this?

Thanks

Ian...

 

[Adrian Jansen]

The software part is easy, since you can send a character(s) from the serial
port with a command like:

Open "Com1:4800,n,8,1" for output as #1 'open the port Com1
Print #1,"AAAA" 'arbitrary string of characters
Close #1 'close the port

This will set the port DTR and RTS lines to the opposite state, and put a
string of pulses on the TX line.

What you do with these in hardware to physically open the till is up to you.
At the very least you will need a couple of transistors, a power supply and
a solenoid in the till mechanism to release the latch.

--
Regards,

Adrian Jansen
J & K MicroSystems
Microcomputer solutions for industrial control

 

[Wayne Morgan]

You can find information on using the serial port here:

http://www.granite.ab.ca/access/serialport.htm

As far as the command necessary to activate the till drawer, I don't know.

 

[Dirk Goldgar]

You can find information on using the serial port here:

http://www.granite.ab.ca/access/serialport.htm

As far as the command necessary to activate the till drawer, I don't
know.

I have a vague memory that for some at least you just have to send the
BEL character, Chr(7) -- I think.

 

[Wayne Morgan]

Is that why the register goes "Ding" when the drawer opens?

 

[Bas Cost Budde]

Is that why the register goes "Ding" when the drawer opens?

Maybe. Do people get injured by ambulances?

I think the Bell character was added to simulate the older devices. The
register existed before the ASCII character set, if I remember correctly.

 

[Dirk Goldgar]

Is that why the register goes "Ding" when the drawer opens?

<chuckle>