It's not one I designed. :) It's one I found ready to go. http://www.ndholmes.com/pmwiki.php/Electronics/DCCMeter I'm just waiting for the slow...
Nothing other than trial and error to make the screen say something like the reality. Having said that, I have no clue where Dave got his figures...
That for me was where all this started. I have 3 IBT-2s, one of which immediately shuts down as soon as power is applied showing "PWR OFF-2 sec"...
Glad you've sorted it Steve!
The diode drops 0.7V so you'll only ever get around 4.3V on the 6N137 and the Arduino VCC.
Here's an extract from the 6N137 datasheet. You'll note that the MAX pull-up resistor is 4K and the MIN Voltage is 4.5V neither of which you...
PS you should be getting a nice DCC 5V square wave and it's inverse as inputs to the IBT-2.
Hi Steve, The first thing I would check is that you have more than 4.5V on pin 8 of the 6N317 (VCC) as the datasheet states that this is the...
Hi Steve, Good news you're getting somewhere. Back has improved quite a bit and I'm £220 poorer after buying one of those chairs that have lumbar...
Just a note, you may notice I've changed the pullup resistor on the optocoupler output to it's recommended minimum (330R) because I was only...
Hi Steve, I still haven't got much further with this as I've pulled my back somehow and am currently acting like a knackered 96 year old. LOL I...
Hi Dave, Yes, a puzzler indeed! I'm going to spend some (more) time on this at the weekend, I'm determined to crack it. All the boards have the...
Hi Steve, I'll do some detailed stuff for you at the weekend but to be going on with I attach a copy of Dave's schematic built in Proteus (for the...
Thanks for the reply Dave. It's definitely something to do with the current sense. I have 3 ITB-2s now and 2 of them perform as described in the...
Dave, would you be so kind as to explain how you are using the CurrentPinReading and how you derived the formula. I can't for the life of me see...
Same here...but mine shows 89% on one IBT-2 module and complete shutdown on the other. Got to be a I sense issue but I have a clue what!
I'm having a similar problem. I have a Mega and Arduino motor shield setup for DCC++ which works perfectly and has been running trains for a year...
Site now says "Coming August 2017" and sold out! Any news please?
