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The Outhouse Powerwall
#36
Installed another solar charge controller last weekend! Didn't go as smoothly though. Broke both my BMS and my A/C unit that weekend too. Somehow blew up the comm port of my bms, think I had a bad power supply for the Pi and that blew the usb to ttl, which in turn blew up the bms side. So I'm out of that telemetry. Thankfully it's only $75 for another bms. Then after I installed the eSmart3 and put it all back together. Then later I found that something broke in my a/c split unit. Cost to replace the board was too much. Pity. So just ordered another split unit.

Anyways, I bought this eSmart3 60A on ebay for around $150 early during the summer, but never had the chance or need to install it. So just installed it for extra power during winter. Seems to be a decent unit so far. It doesn't react to MPPT tracking as fast as the PIP but I think it holds its own. I also managed to find information about the protocol through a website on the internet, then I contacted the mfg and they were kind enough to supply the full protocol spec. From there it was easy to build a python script to dump the data from the RS485 port and merge it into my influxdb for the PIP.

Below is the url link where I got the pinouts and the start on how to program the python script. In there he noted that while testing the MPPT would drop out and needs a manual restart. I have yet to experience that yet, but it could be that he didn't have enough panels to cover the voltage needed. Mine is put 3 in series for around 115V, so plenty of power to operate. I also have the full protocol spec, so if anyone wants it just let me know.
http://skagmo.com/page.php?p=documents%2...rt3_review

Below is today's output. It was a full day of sun on Sunday Angel   I set the eSmart3 to stop at 28.4V while the PIP would go up to 28.6V. Like the review said, there's a slight variation in voltage, mine was off the PIP by .2V. No biggie. From the graphs it looks like my batteries were fully charged by 12.30pm and the eSmart3 went on float while the PIP also started to back off. Couldn't break 12kWh, but got close to it! Had all my appliances running to keep the usage high hehe.

     
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Messages In This Thread
The Outhouse Powerwall - by not2bme - 12-26-2017, 05:20 AM
RE: The Outhouse Powerwall - by wim - 12-26-2017, 07:49 AM
RE: The Outhouse Powerwall - by Stefaan De Ridder - 12-26-2017, 09:03 AM
RE: The Outhouse Powerwall - by Korishan - 12-26-2017, 01:43 PM
RE: The Outhouse Powerwall - by not2bme - 12-26-2017, 02:13 PM
RE: The Outhouse Powerwall - by Wattsup - 12-26-2017, 08:04 PM
RE: The Outhouse Powerwall - by wim - 12-26-2017, 08:09 PM
RE: The Outhouse Powerwall - by not2bme - 01-07-2018, 10:25 PM
RE: The Outhouse Powerwall - by not2bme - 01-20-2018, 04:29 AM
RE: The Outhouse Powerwall - by not2bme - 08-01-2018, 02:57 AM
RE: The Outhouse Powerwall - by rodagaster - 08-01-2018, 08:29 AM
RE: The Outhouse Powerwall - by not2bme - 08-01-2018, 02:13 PM
RE: The Outhouse Powerwall - by Walde - 08-01-2018, 08:18 PM
RE: The Outhouse Powerwall - by not2bme - 08-02-2018, 01:05 AM
RE: The Outhouse Powerwall - by not2bme - 08-11-2018, 08:56 PM
RE: The Outhouse Powerwall - by jesusangel - 08-12-2018, 06:25 AM
RE: The Outhouse Powerwall - by not2bme - 08-12-2018, 11:22 AM
RE: The Outhouse Powerwall - by jesusangel - 08-12-2018, 11:44 AM
RE: The Outhouse Powerwall - by Redpacket - 08-12-2018, 01:36 AM
RE: The Outhouse Powerwall - by Korishan - 08-12-2018, 12:11 PM
RE: The Outhouse Powerwall - by not2bme - 08-12-2018, 03:24 PM
RE: The Outhouse Powerwall - by Korishan - 08-12-2018, 04:38 PM
RE: The Outhouse Powerwall - by not2bme - 08-19-2018, 07:47 PM
RE: The Outhouse Powerwall - by not2bme - 09-04-2018, 11:24 PM
RE: The Outhouse Powerwall - by jdeadman - 09-05-2018, 12:26 AM
RE: The Outhouse Powerwall - by not2bme - 09-05-2018, 02:21 PM
RE: The Outhouse Powerwall - by jdeadman - 09-05-2018, 03:18 PM
RE: The Outhouse Powerwall - by hbpowerwall - 09-06-2018, 03:15 AM
RE: The Outhouse Powerwall - by not2bme - 09-06-2018, 11:26 PM
RE: The Outhouse Powerwall - by hbpowerwall - 09-07-2018, 02:22 AM
RE: The Outhouse Powerwall - by not2bme - 10-08-2018, 05:45 PM
RE: The Outhouse Powerwall - by not2bme - 10-12-2018, 11:28 PM
RE: The Outhouse Powerwall - by Haslero - 10-13-2018, 12:38 PM
RE: The Outhouse Powerwall - by pflicht - 10-20-2018, 03:36 AM
RE: The Outhouse Powerwall - by not2bme - 10-25-2018, 11:10 PM
RE: The Outhouse Powerwall - by not2bme - 11-11-2018, 09:22 PM
RE: The Outhouse Powerwall - by not2bme - 02-02-2019, 10:01 PM
RE: The Outhouse Powerwall - by mike - 02-03-2019, 06:28 PM
RE: The Outhouse Powerwall - by not2bme - 02-04-2019, 09:25 PM
RE: The Outhouse Powerwall - by not2bme - 03-01-2019, 12:16 AM
RE: The Outhouse Powerwall - by kanchana - 04-17-2019, 04:12 PM
RE: The Outhouse Powerwall - by not2bme - 04-18-2019, 01:25 AM
RE: The Outhouse Powerwall - by kanchana - 04-20-2019, 02:15 AM
RE: The Outhouse Powerwall - by not2bme - 04-30-2019, 02:37 AM
RE: The Outhouse Powerwall - by not2bme - 05-06-2019, 04:01 AM

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