So I mentioned that I would out some links to standards for networking controllers and sensors. Here are a few with random pictures and links. Canbus http://en.wikipedia.org/wiki/CAN_bus http://upload.wikimedia.org/wikipedia/commons/7/7f/CAN-Bus-frame_in_base_for mat_without_stuffbits.png BacNet http://www.bacnet.org http://www.iso.org/iso/catalogue_detail.htm?csnumber=37299 Dash7 http://www.dash7.org/ https://dash7.memberclicks.net/assets/capture.png http://www.dailywireless.org/images/up/zigbee.jpg Zigbee http://www.zigbee.org http://1.bp.blogspot.com/-LMEVh6cyQhg/Tj6QvzqB_II/AAAAAAAAADY/UXmJG3leDI0/s1 600/wsn_tcp_ip_8.jpg BlueTooth https://www.bluetooth.org/en-us/specification/adopted-specifications WiFi http://standards.ieee.org/about/get/802/802.11.html GPRS http://www.3gpp.org/DynaReport/SpecVsWi--45001.htm DSRC http://www.etsi.org/deliver/etsi_es/202600_202699/202663/01.01.00_50/es_2026 63v010100m.pdf Salvatore D'Agostino, CSCIP IDmachines LLC |1264 Beacon Street, #5 | Brookline, MA 02446 | USA http:\\www.idmachines.com <http://www.idmachines.com/> | http:\\idmachines.blogspot.com <http://idmachines.blogspot.com/> | @idmachines +1 617.201.4809 ph | +1 617.812.6495 fax