RS485-comminicatoris a serial synchronization library for master to multi-slave communication designed to work on a RS485 bus. The main purposes of this library are:

• Organize serial data transfer in order to avoid collisions when multiple devices uses the same shared medium (like a RS485 bus). This is done by a token-driven logic.
• Message integrity in order to detect when errors occurs during transmission. This is done by crc8 checks

More informations can be found in the wiki pages:

Wiki home

Synchronization protocol & frame structure

Classes methods

Tuning the token return timeout value

RS485 transceivers

Circuit sample & cables

See Samples folder in the source code directory for a quick review on both Master and slave implementations.

This library is distribuited under GPLv3. See GPLv3 disclaimer.