Hello, I am new here and I am interested in interfacing a Whizbang Jr to a R-âˆ. My application is to use as a monitor for an RV DC electrical system so I do not need a charge controller, I am only interested in measuring and display.
Has anyone done this?
Thanks for your attention,
John
Andrew did explain how the WBJR works a few weeks ago here on the forum. Ill try to find it.
Actually it was Brad. here:
http://kb1uas.com/mnsforum/index.php?topic=2583.msg24706#msg24706
...and its quite straightforward to use an RPi or Arduino to interface with the WBjr.
The odd serial baud rate of 2500 can be fiddled and the timing loops using millis to organise the various states is just what the Arduino is made for (and RPi)
I had to dig through some old postings to figure out using other shunts apart from the Deltec 50mv/500A as I had several Deltec 50mv/100A shunts from old Cisco 7500 48V DC power units.
Another project in the queue to make a multi shunt DC power monitor 8)
dgd
Quote from: zoneblue on October 25, 2015, 04:31:36 PM
Actually it was Brad. here:
http://kb1uas.com/mnsforum/index.php?topic=2583.msg24706#msg24706
404 error.
Is this still available
Quote from: Watt_ on January 14, 2019, 06:23:08 AM
Quote from: zoneblue on October 25, 2015, 04:31:36 PM
Actually it was Brad. here:
http://kb1uas.com/mnsforum/index.php?topic=2583.msg24706#msg24706
404 error.
Is this still available
The main URL changed so I copied and pasted the URL after the kb1uas.com/mnsforum/ part to get this one which actually works !
http://midniteftp.com/forum/index.php?topic=2583.msg24706#msg24706
Quote from: boB on January 14, 2019, 02:08:42 PM
Quote from: Watt_ on January 14, 2019, 06:23:08 AM
Quote from: zoneblue on October 25, 2015, 04:31:36 PM
Actually it was Brad. here:
http://kb1uas.com/mnsforum/index.php?topic=2583.msg24706#msg24706
404 error.
Is this still available
The main URL changed so I copied and pasted the URL after the kb1uas.com/mnsforum/ part to get this one which actually works !
http://midniteftp.com/forum/index.php?topic=2583.msg24706#msg24706
Thank you boB!
Possibly (probably!) a stupid question, but...wouldn't it be simpler to just monitor the mV drop across the shunt with the Arduino or RasPi (and code the conversion to Amps)?
Quote from: openplanet on April 14, 2019, 11:44:08 PM
Possibly (probably!) a stupid question, but...wouldn't it be simpler to just monitor the mV drop across the shunt with the Arduino or RasPi (and code the conversion to Amps)?
Sure, you could do that too.
Does the Arduino have a high resolution D.C. A/D converter that will do positive and negative voltages ?
Or maybe a hat (whatever it's called for the Arduino) that has one ? I would be interested if the Arduino or Pi could do that.
boB, I think it is a CAPE or ...?? not a hat...
For Arduinos, I guess they are called Shields.
https://randomnerdtutorials.com/25-arduino-shields/
I think that Capes are for Beagle Bone boards. I actually have one of those boards.
Maybe it's a Hat that is for Pi ?
boB