What phy hardware and libraries would it take to use 4.1 with 100BASE-T1 2wire automotive ethernet?
Teensy has differential +/- for Tx and Rx 4 wire as I understand it.
That is a switch which I would use in my van. I don't have the switch yet. Teensy 4.1 would connect to this.
github.com
This media converter I do have. It would live inside a SAE J1772 EV charger box connected to home LAN.
The 'plan' (more wish at this stage) is to use a Teensy 4.1 as an EVCC (Electric Vehicle Charge Controller) to implement the vehicle side https://en.wikipedia.org/wiki/SAE_J1772#Signaling to manage charging my electric wheelchair, van aux battery bank, shore power and other needs of the van such as sensing when the engine is up to speed, deploying ramp, etc.
After the initial handshake, where some vehicles switch over to AC powerline networking during AC level 1 and 2 charging, I would like to experiment with 100BASE-T1 during DC level 1 charging.
One reason is that nobody implements DC level 1 at all, and I think it would be wonderful for Ebikes, scooters, and power chairs to be able to grab a quick charge while out in the community or at home from EV infrastructure without having to carry around a dedicated charger. The idea is not to take up a charger parking spot, but to add an additional low power plug on the sidewalk side which could be used independently. And get more long range use out of light evs.
The other reason is to get the internet supplied by the Starlink mini on my dash into the house while only connecting the easy to use J1772 plug. If I can't get networking to function over the DC link, then using the PP and CP pins is a potential option.
If it works with J1772, it should work over NACS too probably.
Teensy has differential +/- for Tx and Rx 4 wire as I understand it.
That is a switch which I would use in my van. I don't have the switch yet. Teensy 4.1 would connect to this.
GitHub - INNO-MAKER/100BASE-T1TX-N: 100M Ethernet Mdeia Converter Device 2-wire Ethernet To 100BASE-T1 Standard Ethernet RJ45 Based on NXP TJA1101AHN/0Z
100M Ethernet Mdeia Converter Device 2-wire Ethernet To 100BASE-T1 Standard Ethernet RJ45 Based on NXP TJA1101AHN/0Z - INNO-MAKER/100BASE-T1TX-N
github.com
The 'plan' (more wish at this stage) is to use a Teensy 4.1 as an EVCC (Electric Vehicle Charge Controller) to implement the vehicle side https://en.wikipedia.org/wiki/SAE_J1772#Signaling to manage charging my electric wheelchair, van aux battery bank, shore power and other needs of the van such as sensing when the engine is up to speed, deploying ramp, etc.
After the initial handshake, where some vehicles switch over to AC powerline networking during AC level 1 and 2 charging, I would like to experiment with 100BASE-T1 during DC level 1 charging.
One reason is that nobody implements DC level 1 at all, and I think it would be wonderful for Ebikes, scooters, and power chairs to be able to grab a quick charge while out in the community or at home from EV infrastructure without having to carry around a dedicated charger. The idea is not to take up a charger parking spot, but to add an additional low power plug on the sidewalk side which could be used independently. And get more long range use out of light evs.
The other reason is to get the internet supplied by the Starlink mini on my dash into the house while only connecting the easy to use J1772 plug. If I can't get networking to function over the DC link, then using the PP and CP pins is a potential option.
If it works with J1772, it should work over NACS too probably.
