Bus Pirate v3 LCD adapter hardware design
From DP
Control HD44780 LCDs from the Bus Pirate v3 with this breakout board. The Bus Pirate LCD mode uses an adapter because there aren't enough pins to directly control a character display.
You can build the adapter with a few parts and a bread board, or you can buy it ready-made at Seeed Studio for $xx.xx. Includes a short connector cable. Every sale directly supports open source development of the Bus Pirat
You can get a [], including worldwide shipping.
Read about the design below.
Contents |
Overview
Since the new version 4 of the Bus Pirate we now have enough pins to drive HD44780, and compatible LCD directly. This board is makes connection the Bus Pirate to LCDs even simpler. It has contrast, and brightness adjustment via trimmers, and supports both 3.3v, and 5v LCDs, also supported are both orientation of the brightness LEDs.
Hardware
Click for a full size schematic image. Schematic and PCB were designed with the freeware version of Cadsoft Eagle, download the latest project files from our Google Code project page.
'595 serial shift register
Contrast
Brightness
HD44780 header
Included on the board is the standard 16pin header for HD44780, and compatible LCDs.
Bus Pirate v3 IO header
For simple connectivity, the same 12pin IO header as featured on the Bus Pirate v4 is located on the board. All it takes to connect the two boards is a 12pin flat cable.
PCB
We used the freeware version of Cadsoft Eagle to make the schematic and PCB. Download the latest designs and firmware from the project Google Code page.
- PCB and placement notes
- soldering advise
Partslist
Click for a full size placement image.
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You can [get one for $00], including worldwide shipping.
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