With the extra resolution does it bring and end to the 1.8 second delay in lap reporting 🤔.
Does that baud rate effect the performance or driving feel, outside of any RMS functionality?
Again simple answer..yes. So much that unsolicited response by some of the regular Analog competition drivers was: "feels like I'm driving an analoge car" Such positive reactions have been questioned by Maurizio himself...suspecting some "placebo" effect as nothing has changed in the actual data commands send.
But them being send and refreshed 4x as fast may very well explain the "feel"
What I'm not seeing is a specific mention of whether or not 4.0 hardware will be able to "slow down" and work on the 3.0 system. I'm assuming not, since slot.it says that it "breaks compatability" but I figured it's at least worth clarifying. Sure, old hardware won't be able to work with the new 4.0 dongle and RMS, but is it possible for new 4.0 chips and dongle to function in some kind of slower 3.0 compatible mode?
Again simple answer..yes and no. Current Chips and those dating back to B1 have been produced for 250k, but need and can be upgraded to 1Mbit to run on 4.0 (and downgraded back to 250k for 3.0 if required)
And here's where my knowledge and authority ends. It can be that Slot.it will start loading new Chips standard with 4.0 firmware at a certain time. And I'm sure that if they do so they will communicate this well in advance or that they will call those Chips B4 and C4 (just guessing here) these chips should still be able to be downgraded to 250k and 3.0.
But its obvious that once the IC manufacturer stops producing 250k chips and only produces 1Mbit chips that such downgrades will no longer be possible
Now I also have a question: Is it possible to upgrade the old oXigen dongles (firmware V3.13) with the new 4.0 protocol or is it absolutely necessary to buy new dongles?
Not so simple answer as its a Yes & No and Yes. I'll try to explain.
Direct upgrades for B2 & C chips and SCP3 can be easily done via the slot.it app..its a really simple procedure no dongle required.
Older B2,B1 and SCP 1-2 controllers need the boot loader program and old dongle for upgrades to 4.0
There are several steps that need to be performed which at a certain stage requires updating the "Old" dongle to 4.0 firmware to finish the upgrade. So for as far as the upgrades required for Chips and controllers the "old" dongle can run 4.0...
...but it can't run the RMS @ 1Mbit on 4.0, so yes if you want to run the RMS on 4.0 you'll need to buy a new dongle.
My second question: What experience do you have with the power supply for SCP2/3-controllers? How many amps do you need to safely supply 16 or 20 controllers?
Not really 4.0 related as new firm & software doesn't influence power consumption of the controller. But FYI:
With power consumption per controller in the Milli amps a 1 or 2 amp power supply rated between 9 and 12v is more than enough....but what's written as output on the power supply isn't always what's available at the end of the power feed to the driver rostrum. You loose power in the wires, sockets, connectors. So verify that at the socket you still have min 9v available.
(Last note: its beyond my responsibility to post the complete update procedure here, for risk of errors I might make.
That's a task for Slot.it/ Maurizio. All the upgrades at Src Eindhoven were performed by Stefan Kievit and/or Maurizio himself. We're still in Beta testing mode here. Next step in the process is for the Belgium and Dutch clubs that will now migrate/upgrade to 4.0 to become proficient in performing upgrades and procedures without the physical assistance of Maurizio. A manual has been written for them and possibley fine tuning or clarifying the upgrade procedure might be needed as feedback is given over the succes/fail rate of its implementation)
With kind regards