SBMS0 v02b EXT105 & 106

[Jim A]

Hi Dacian, 

I have the SBMS0 v02b and it did not come with the 10 pin connector. I would like to have access to EXT105 & EXT106. What is the best way to do this?  Can I solder wires directly in the 'through the hole' points or should I solder a 10 pin connector in place?

Any update on when the new DEXT will be available?

Thx,  Jim A

[Dacian Todea (electrodacus)]

Jim,

You can solder wires directly but make sure wires are not to long to touch something else inside. Maybe remove the board when soldering then install it back.

The 10pin connector was usually insulted with the SBMS0 so you can solder that if you prefer.  Connector is fairly tall so I did not had that soldered by default at it may take to much space for some applications.

The new prototype board (3'rd version) is now on its way to me should get here next week and I'm fairly certain this is the last version unless something needs a small correction and after I properly test this I will order PCB's for production.

The main IC I wanted to use to trip a circuit breaker become unavailable (required long wait time if ordered months up to a year) so I switched so some fairly different IC that I already purchased for production volume.

So if this PCB is all good I will order in two or three weeks after I test the prototype then I needs some more weeks to build so two to three months before you can buy one.

[wmckeenster]

Dacian,

Thanks great news! What else did you add or what other changes are there? 

[Dacian Todea (electrodacus)]

I will make an update once the PCB's are here. The change is mostly on the breaker trip circuit where now it will be able to trip two breaker's instead of just one and if needed it can be configured (remove and add some jumper resistors) to work on controlling relays/contractors if someone needs that. By default it will be configured for tripping circuit breakers.

I also doubled the current provided for the I2C from 40mA to 80mA as that was needed to handle in the future supplying 3.3V to SBMS (about 9mA) and up to 6  DMPPT100 when those will be available.

I also removed the temp sensor XT1 bypass that will be connected directly to SBMS to use that connection for PV2 possible in a new SBMS revision there will be dual PV shunt input PV1 and PV2 Likely that will be called SBMS2 but not sure when exactly will that happen.

[Jim A]

Dacian,  Thanks for all that you do!  I've still got a SBMS120 in my RV that has been going non-stop for 3 or 4 (or maybe 5) years.  And  I purchased a backup SBMS120 for 'just in case' moments that has never been used!  Can't wait to see what you come up with next.