Hello,
I have a customer where Octave could fit very well but they use hart protocol.
Can we support hart protocol adding the IoT card with 4-20ma analogue inputs with Octave?
Thanks
Isabel
Hi @Larumbe. Happy 2020 and good to hear from you! 
Our community members have made an IoT card supporting 4-20mA input http://www.energiya.pl/products/iot.html#conv. However the service to specific for the HART protocol would need to be developed.
Please feel free to contact the Octave commercial team if you feel this is worth a new feature development. We don’t take those requests directly in this Forum.
Thanks!