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Hello Fellow sailors!
I'm also trying to make my pypilot with this controller but I have some questions....
-Am I right to use the ratiometric mode and therefor Ground D5 and D4? D6 is left open?
-can i wire the "CS" (current sense) directly to A1 on the arduino? without any capacitors or code change?
-How long can the cable be betweeen my ttl-usb controller and the arduino(in the tiller)?
Hope anyone can help!
Thanks, steffen
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2019-10-23, 12:27 AM
(This post was last modified: 2019-10-23, 12:29 AM by seandepagnier.)
I believe you are correct, but you should also check the code and set the vnh20sp30 ifdefs
The wires can be very long, much longer than most boats in most cases. It depends on interference, but you can also use shielded twisted pairs so each wire has a ground wire from ethernet cable and it goes hundreds of feet at 3.3 volts in this cases, so most people don't need shielded wires.
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Thank you for your reply Sean!
Yes i will set the right ifdefs. Will update when i have succes.
Greetz from The Netherlands
[/quote]
Hey,
I don't understand is your problem software or hardware related. Should I dig up my motor.ino sketch?
Don't mind sharing it.
Br. Robin
Verstuurd vanaf mijn Nokia 6.1 met Tapatalk
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Check that pin 7 and 8 are not grounded and reading 5 volts if you get this FWD_FAULT it indicates maybe it is the cause.
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Just want to mention for all you folks having such fun out there with the VNH20SP30 not working, that this chip is no longer manufacturered, and ST recommend using the VNH5019 instead.
I ordered some VNH5019 modules off AliExpress 10 days ago. Will try them out when they arrive.
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Some people must have bad luck with the IC. Mine works fine. Had trouble with the Nano (fuses bad) and with the Raspberry Zero W (Wifi didnt work).
I think some of you had a chip out of a bad batch. I don’t condemn all Raspberry Zero´s and Arduino Nano´s because I had trouble with both.
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2019-12-04, 12:12 AM
(This post was last modified: 2019-12-04, 12:12 AM by seandepagnier.)
I don't condemn all the parts but I did not manage to get a good one after ordering 3.
In any case, it has a much higher on resistance than using individual mosfets which wastes more power. It is really interesting because it eliminates a lot of individual components though, so you might consider this.