2. Geocaching4LocusA Locus simple add-on allows you to download and import caches directly from Geocaching.com site.
3. slf4j-timberSLF4J binding for Jake Wharton's Timber Android logging library
4. SyslogAn Arduino library for logging to Syslog server in IETF format (RFC 5424) and BSD format (RFC 3164)