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+<!--
+---
+name: MDB2Pi HAT
+class: board
+type: IO,Power
+formfactor: HAT
+manufacturer: Abrantix
+description: Multi-Drop-Bus MDB Converter Board for the Raspberry Pi
+url: http://www.abrantix.com/MDBConverter.html
+buy: http://blog.abrantix.com/webshop/
+image: 'mdb2pi-hat.png'
+pincount: 40
+eeprom: yes
+power:
+  '1':
+  '2':
+  '4':
+  '17':
+ground:
+  '6':
+  '9':
+  '14':
+  '20':
+  '25':
+  '30':
+  '34':
+  '39':
+pin:
+  '8':
+    mode: UART
+  '10':
+    mode: UART
+  '27':
+    mode: i2c
+  '28':
+    mode: i2c
+i2c:
+  '0x50':
+    name: HAT EEPROM
+    device: 24C32
+-->
+#MDB2Pi HAT
+
+The MDB2Pi HAT can serve as an MDB master or as a peripheral MDB Device for Vending Machines (VMC). 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 HAT is powered from the MDB bus (10...42V regulated or unregulated supply) and backpowers the Raspberry Pi with up to 2.5A@5V. Thus no separate power supply is required for the pi.
+
+##Configuration
+1. Enable UART and HAT detection by adding the following lines to /boot/config.txt:
+```bash
+enable_uart=1
+dtparam=i2c_vc=on
+```
+
+2. disable serial console output by editing :
+```bash
+sudo nano /boot/cmdline.txt
+```
+--> remove the "console=..." parameter
+
+##MDB Master Demo:
+1. Install mono runtime:
+```bash
+sudo apt-get install mono-runtime
+```
+
+2. Get the Demo code:
+```bash
+wget https://secure.abrantix.com/downloads/MDBConverter/MasterSimulatorConsole.zip
+unzip MasterSimulatorConsole.zip
+```
+
+3. Run the Demo:
+```bash
+cd MasterSimulatorConsole
+mono MDBMasterSimulatorConsole.exe /dev/serial0 115200
+```
+Hint: On newer raspbian releases, the serial port is available as /dev/serial0 - older releases may use dev/ttyAMA0.
+
+
+