RS485-like multi-drop bus

Posted on Jun 28, 2012

PBUS is an RS485-like multi-drop bus for interconnecting PIC and other microcontroller-driven devices. Protocol and software is written by Jap. Just include a separate pbus library file into your project and add your command handlers for the specific device in a few lines.

RS485-like multi-drop bus
Click here to download the full size of the above Circuit.

There are three PIC source versions: * PB12 is for 12-bit slave devices without interrupt * PBUS is for slave devices with an interrupt, software UART implementation * PB628 is for slave devices with an intterupt and a free hardware UART

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