villivateur/pinout.vvzero.com
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Update mdb2pi-hat.md

Browse Source
This commit is contained in:
mmame 2017-02-02 16:14:16 +01:00 committed by GitHub
parent 481b3e32bd
commit a185bd1c9d
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
draft/overlay/mdb2pi-hat.md
View File

@ -41,7 +41,7 @@ i2c:
--> -->
#MDB2Pi HAT #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 can serve as a 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. 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 ##Configuration
@ -51,13 +51,14 @@ enable_uart=1
dtparam=i2c_vc=on dtparam=i2c_vc=on
``` ```
2. disable serial console output by editing : 2. disable serial console output:
```bash ```bash
sudo nano /boot/cmdline.txt sudo nano /boot/cmdline.txt
``` ```
--> remove the "console=..." parameter --> remove the "console=..." parameter
##MDB Master and Cashless Device Demo: ##MDB Master and Cashless Device Demo:
Prerequisites:
1. Install mono runtime: 1. Install mono runtime:
```bash ```bash
sudo apt-get install mono-runtime sudo apt-get install mono-runtime