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# GNU Taler snack machine
#### Author(s)
* BOSS Marco
* HOFER Dominik
* GROTHOFF Christian
#### Prequisites
* GNU gcc tool-chain
* C standard libraries
* libnfc
* libcurl/libgnurl
* libjansson
* GNU make
* GNUNet
* GNU Taler (exchange + merchant)
* libqrencode (optional)
#### Tested on
* Ubuntu LTS (18.04)
* Raspian Lite (4.19)
#### Hardware used for prototype
* Raspberry Pi 3B+
* ACR122U NFC USB reader
* MDB/ICP Converter from Shanghai Wafer Microelectronics
* Adafruit PiTFT 3.5" display
#### Description
This is a app to run a snack machine as Taler merchant with NFC payment interface.
Optionally there can a QRCode be shown on a display to get the payment link.
#### Remarks
* When using an ACR122 device there may be problems with libnfc.
[see here](https://github.com/nfc-tools/libnfc) for further information
* At the moment there is no option to cross compile
#### Build
Building should be easily done with the following three commands:
```bash
./bootstrap
./configure
make
```
#### Configuration
To configure the merchants backend and the product numbers of the snack machine edit
taler.conf file.
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