Robo-Tank 3.0 - Repackaged

[Rob F]

I got everything bench tested and happy to say it's all working as good or possibly better than v2. I didn't make a video testing but one day I will as I think it's good.

Aside from the small error on the faceplate for DC/Lighting module the only thing that didn't work is the reverse polarity protection for each DC port. After shorting one out it's mosfet was damaged as was the case with previous boards. The main reverse polarity protection for the board is ok though. I think I know where I messed up so next set of boards may have that however I might just forget it. To keep cost down and for space I just went with a simple Schottky diode across each port but it gets hot with 2 amps passing through even though it's rated for 5 amps. So the limit for these DC ports is 1 amp each or 4 amps between them all. 

Oh yeah, those LED's in the Ethernet sockets don't light up as I expected which was disappointing. Definitely my fault as I didn't do my due diligence to make sure it would work.

Here's some pics of everything in the cases. I don't think the exposed RJ45's look that bad, what do you think?



Forgot to put the metal nut on BNC.















I really like this sensor extension, it's a nice step towards the plug and play idea and like the other module can be used without the main controller. Setting the jumper for the correct port is straight forward, now if I can only find some XH extension cords.