Open Source ATM

uncle_muddy

I’m amazed! Thank you so much for your help on this one

Printer has just been ordered! now if I could find a note taker for delivery tomorrow we might just be able to get it to the Oxford Blue at the weekend!

In case you where wondering, this is Muddy getting excited!

Github link for my forked Repo: https://github.com/spynappels/openfeathercoinatm.git

+1

I’ll +1 muddy as well…

Keep up the enthusiasm!

kris_davison

Wow would love to build one of these its amazing what you guys are doing here!

MrWyrm

There’s a guy called Ronan who’s the Director of Internation Sales at pyramid. I’ve dropped him an e-mail asking about UK distributors. I’ll report back.

uncle_muddy

Kris, thats the idea :)

I’m just drawing the case up in CAD now, bit difficult without the hardware here, but I can get the basics done. As soon as the hardware arrives I’ll get it finished and off to the laser cutters to get it burnt in 2mm steel. When we have it right we can make the files open source as well!

uncle_muddy

There’s a guy called Ronan who’s the Director of Internation Sales at pyramid. I’ve dropped him an e-mail asking about UK distributors. I’ll report back.

I’ve just emailed them the same question :)

Do you think they will put the price up because of the sudden interest in their product?

MrWyrm

Haha, now they think there’s a demand, send them e-mail offering to be a distributor.

uncle_muddy

I’m looking at one of these http://shanghai-elan.cn/Download/Download%20files/Lumina%20Datasheet.pdf I think everything we have so far is configured to use a pulse interface, so maybe this will do?

spynappels can you see anything in the code that might allude to how the pulses are counted? and if there is anything that looks like it’s expecting the pulses to come in at a set frequency?

MrWyrm

We do not have a distributor at this point of time. If you wish to acquire a unit you may buy it directly from us.

spynappels

The pulses are counted at 50ms intervals, with a 2000ms timeout.

spynappels

Given the price of FTC, we could try it with a coin acceptor first, these are cheaper:

http://www.ebay.co.uk/itm/Multi-Coin-Acceptor-Selector-Mechanism-for-UK-coins-1-2-5p-10p-20p-50p-/260856916542?pt=UK_Sound_Vision_Other&hash=item3cbc48aa3e

Limit it to 50p, Â£1 and Â£2 perhaps?

They work on the same principle, using pulses…

MrWyrm

FYI

A 12 Volt Pulse mode Apex 7000 series with a 500 notes cash box will cost 239 dollars plus shipping, approximately 65 dollars to the U.K.

spynappels

Then the coin acceptor at < Â£25 is a better first bet!

uncle_muddy

Just come across them.

Looking at the code

const int DOLLAR_PULSE = 4; //pulses per dollar

Is it going to be easy enough to add addition lines? for what we want at this point?

I’m in for ordering 1 to go with the rest of the stuff that’s on it’s way, if you think we have a 50%+ chance of getting it to work, I have found a link where people are using the same model with a Ardunio to create a piggy bank, so that sounds promising to me

He’s going to get very suspicious as I’ve just sent him the same question. I’m not fussed about the shipping as if we wait till the end of March I can get one brought back with family. I’m warming to the coin taker version the more I read about it

MrWyrm

Seconded, it’s an easier route for the first prototype. I linked earlier in the thread to a R-Pi project which uses one of these.

uncle_muddy

I’ve read some more of the code now, and there’s a section for adding additional denominations, so it looks like that may be covered :)

     //----------------------------------------------------------
     // Add additional currency denomination logic here: $5, $10, $20 
     //----------------------------------------------------------
   
     pulseCount = 0; // reset pulse count
     pulseTime = 0;
  
}

Spynappels, where about’s in the world are you? I’m going to need to buy you a beer and soon

uncle_muddy

Quick update on parts for you gents, let me know if you think I’m missing anything

Coin selector - ordered should be here next week
A2 Micro Panel Thermal Printer - ordered and dispatched
Arduino Uno - ordered should be here next week
Arduino SD Shield and Real Time Clock - ordered and dispatched
DC/DC (Buck) Converter 12V to 5V 3A - see below
Resistor 10K - in the shed
Barrel Plug 2.1 mm - not needed
Power Supply 12V - going to use an old PC PSU for now, as it give 12v and 5v so no need for the above
SD Card - on the shelf behind me

Do you guys have any ideas on what you want the finished article to look like? or are you happy to go with a variation of the housing I post a couple of days back?

MrWyrm

How are you planning on connecting to the network?

spynappels

Looks good, the Arduino can take 12 volts into the barrel connector, and if you’re using a shield I’d recommend taking a 12V from the PSU to the barrel connector, it’s just easier than trying to bypass the RAW +ve in past one of the shield pins.

Let me know when you get the Uno and I’ll try and talk you through some of the gotchas.

The code will be easy to alter to allow for different denominations of coin, I’ll see if it is easy to change the code so that you don’t get a QR code for every coin inserted, with allowing coins that becomes a little more problematic unless we limit it to only pound coins to begin with.

I’m in Northern Ireland btw, so our coins are the same as yours but we have our own banknotes as well as the Bank of England ones.