56 lines
1.6 KiB
Markdown
56 lines
1.6 KiB
Markdown
<!--
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---
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name: MDB2Pi HAT
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class: board
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type: IO,Power
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formfactor: HAT
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manufacturer: Abrantix
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description: Multi-Drop-Bus MDB Converter Board for the Raspberry Pi
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url: http://blog.abrantix.com/webshop/mdb-converter/
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buy: http://blog.abrantix.com/webshop/product/mdb-to-raspberrypi
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image: 'mdb2pi-hat.png'
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pincount: 40
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eeprom: yes
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power:
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'1':
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'2':
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'4':
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'17':
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ground:
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'6':
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'9':
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'14':
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'20':
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'25':
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'30':
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'34':
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'39':
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pin:
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'3':
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mode: i2c
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'5':
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mode: i2c
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'8':
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mode: UART
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'10':
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mode: UART
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'27':
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mode: i2c
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'28':
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mode: i2c
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i2c:
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'0x50':
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name: HAT EEPROM on I2C0
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device: 24C32
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'0x51':
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name: RTC on I2C1
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device: PCF8563
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-->
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# MDB2Pi HAT
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The MDB2Pi is a Raspberry Pi HAT which can serve as a MDB master (VMC), as MDB cashless peripheral, or as tracer for MDB Vending Machines. It takes care of the MDB specific 9-bit format, electrical and timing constraints. It forwards the MDB payload to the Raspberry Pi UART using a simple serial protocol. The MDB2Pi is powered through the MDB bus (10...42V regulated or unregulated supply) and back-powers the Raspberry Pi with up to 2.5A at 5V. Therefore, no separate power supply is required. Furthermore, the MDB2Pi contains a Real Time Clock (RTC), buffered by a super capacitor.
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A housing for the MDB2Pi (and the MDB2Pi itself) is available at the Abrantix Web Shop: http://blog.abrantix.com/webshop/product/mdb-to-raspberrypi/. Alternatively, you can download a free 3D model here: http://www.thingiverse.com/thing:2209661
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For Configuration and further information, please see http://blog.abrantix.com/webshop/mdb-to-raspberry-pi-configuration/
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