Show Posts
Pages: [1]
1  Using Arduino / Project Guidance / Re: multiple thermal printers on: February 15, 2013, 04:50:51 am
Well the printer specs say

Protocol: TTL Serial, 19200 baud

So in my limited knowledge I am assuming that a TTL-to USB (such as the one I posted) should do the trick...
2  Using Arduino / Project Guidance / Re: multiple thermal printers on: February 14, 2013, 07:34:18 pm
it's serial connection using standard jumper wires
3  Using Arduino / Project Guidance / Re: multiple thermal printers on: February 14, 2013, 11:21:20 am
Okay I see. Actually, in a previous project I succeeded to have the Arduino grab the data online and then print it out, without the PC doing the processing beforehand. It wasn't the smoothest program ever so there's that...
Maybe wishful thinking on my part, but I was wondering if I could just get rid of the Arduinos altogether and run everything from the PC, via multiple USB ports, and using this cable from Adafruit to connect from USB to the TTL connections of the printers. Too much?
Thanks in advance
A
4  Using Arduino / Project Guidance / Re: multiple thermal printers on: February 14, 2013, 09:36:04 am
Thanks for your reply! One issue we have is that the thermal printers don't have a USB connection, they are meant to go to GPIO pins,  which is why we thought of using an Arduino as an intermediary.
Is there maybe a way (maybe a converter, or some kind of board) to go from GPIO connection to the USB ports of any computer?
Apologies if it's a stupid question, I'm more of a software guy than a hardware one smiley-wink
Cheers
5  Using Arduino / Project Guidance / multiple thermal printers on: February 14, 2013, 06:35:58 am
Hey everyone,
I am planning an installation in which I have to control 24 thermal printers (like adafruit's) and was just going over some technical issues.

My plan is to have Processing running on a mini Mac collecting xml data from the internet, and creating different strings for different 'tags' (example: rain, time, location etc.).
Those strings are then sent to the Arduino who talk to the printers: each printer should be printing out a specific string of data independently from each other.

My question is: Can I control all those printers from one single Arduino? It seems to me that SoftwareSerial could do the trick, but as I won't have access to all those printers until I actually get the budget, I need to know in advance what sort of problems I could run into.

Which brings me to my next question: would maybe be just simpler to have each printer controlled by a different Arduino, each separately connected to the internet and each getting and processing the XML data independently? Do I even need the miniMac?

Thanks in advance for any kind of help you can give!

A
Pages: [1]