Very good news Francesco… what CAN modules should I order ?
Even at 1Mbs the CAN bus can be up to 40m
long, so at 500Kbs (the norm) it should be capable of even greater distances while still achieving CAN fault-tolerance and reliability. Another CAN benefit is that it uses software identifiers instead of hardware addressing, thereby making dynamic addressing
possible - offering ability for backups of crucial devices to co-exist on the bus ready to dynamically step in to take over important functionality in event of primary device failure.
So my main interest is for linking several clusters of interactive Annex devices and their analog and digital peripherals into a reliable autonomous automation and control system, with only a single wifi connection for remote monitoring and control. Will be especially useful for analog devices which are limited by the
number of ADC's to be scanned and how often to scan them - which is ok for a 2
servo pan & tilt cctv platform, but not practical for (eg:) a sensor
glove to control a robotic hand... whereas CAN bus could allow multiple
devices to share the analog load, all reliably interconnected.
But I can also predict many interesting uses for Annex CAN in my camper conversion, eg: remote monitoring of battery voltage and inside and outside temps, controlling lighting and central locking and dash music from the rear, adding new CAN-controlled internal lighting and other devices.
WiIl all be much more fun using Annex than if having to use arduino.
Here's some youtube CAN links if anyone is interested…
More recent overview https://www.youtube.com/watch?v=FqLDpHsxvf8
Sending and receiving digital and analog info between arduinos https://www.youtube.com/watch?v=us9ZEvdm09A https://www.youtube.com/watch?v=2gnXKMoFwkc&t=299s
Hack your Car series https://www.youtube.com/watch?v=cAAzXM5vsi0
Some CAN eye-openers https://www.youtube.com/watch?v=U1yecKUmnFo