I added a HGI80 to my raspberry pi to monitor my evohome system. After adding the hardware, I do not get any devices. The log shows a buffer overflow error.

2016-03-15 21:17:51.554 Error: evohome: Buffer overflow
2016-03-15 21:17:52.191 evohome: serial setup retry in 30 seconds...
2016-03-15 21:18 ...