Difference between revisions of "202100217 Virtual Meetup"

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(meetup :))
 
(meeting minutes)
 
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Virtual meetup, at 8pm CET: https://meet.ffmuc.net/eventgrid
 
Virtual meetup, at 8pm CET: https://meet.ffmuc.net/eventgrid
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Participants: ecki, martin, chewie, nico, tkteun, jeremail, uli
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== Personal updates ==
 +
=== Chewie ===
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* Has one of Martins charge controllers to play with
 +
* Added some information to the wiki, e.g. some information on [[Charge_Controllers]] he tried out
 +
 +
=== Martin ===
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Working on [https://libre.solar/ Charge Controllers]
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* still has some [https://libre.solar/devices/mppt-1210-hus/ 10A controllers] for sale
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* waiting for the [https://libre.solar/devices/mppt-2420-lc/ 20A controllers] to arrive
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* Over-the-air updates via ESP32
 +
* Playing around with OpenEnergyMonitor, InfluxDB/Grafana, etc.
 +
 +
Looking for some information on LoRaWAN
 +
* Severin has been at The Things Conference, there are some interesting [https://www.youtube.com/playlist?list=PLM8eOeiKY7JUPeu23SJ3TPY9BfagiBFIT talks]
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Looking into BMS - anyone have any experience with that? **crickets**
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=== Nico ===
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* Got an MCH camper ticket, but might be able to give it to someone who needs it
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* Looking for a DC connector that is case mountable
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** Ideas: [https://powerwerx.com/anderson-power-powerpole-sb-connectors Powerpole SB] (used by many amateur radio folks)
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=== Jeremail ===
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Got a [https://beaudens.com/products/380wh-lifepo4-portable-power-station Beaudens B3801] "Portable-Generator" Battery station
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* LiFePo based - safer than LiIon
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* Inverter produces a clean sinewave, even under load
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* Uses quite a bit of power when idle though
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* Quite cheap [https://www.ebay.de/itm/Beaudens-B3801-384Wh-Power-Generator-Stromgenerator-Power-Station-Auto-Ladegeraet-/184523435291]
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Looking for an XT60 Hub
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* We found some [http://www.omgfly.com/omg-high-voltage-high-current-power-hubintegrated-p-3381.html bad] [https://www.etsy.com/listing/785181615/1s-battery-charging-cable-tiny-hawk examples]
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* Severin found a [https://github.com/jesseaster/xt60board PCB design] that's open source
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=== Severin ===
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* Built a Solar Charge Controller off a design he found online, with some weird design choices that got him thinking
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** e.g. where to put fuses in the design?
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* Put together the first prototype of his [https://hackaday.io/project/176914-lorawan-battery-pack-monitor LoRaWAN Batter Pack Monitor], which totally did not work as expected
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* Submitted a proposal for a [https://wiki.munichmakerlab.de/images/7/75/Microgrid-connectors.png DC Grid connection box] to a Element14 Deisgn Competition (to force him to actually build something) - still waiting on feedback
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== DC Connectors ==
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Always a good topic
 +
* Speakon - Quality issues with stuff from AliExpress, local stuff somewhat expensive, but apart from that quite interesting
 +
* PowerCon - Similar to Speakon, but also used for mains power, which could lead to some unintended issues...
 +
* XLR 4pin - there is a standard for professional AV equipment using these connectors for 12V
 +
 +
Plugs with the option for data connections?
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* [https://www.weipuconnector.com/product/39 Weipu SP21] was recommended by Zoe some time ago
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* Speakon has 4pins...
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== Misc ==
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* [https://blog.mi.com/en/2021/01/29/forget-about-cables-and-charging-stands-with-revolutionary-mi-air-charge-technology/ Wireless power by Xiaomi]
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[[Category:Meeting Minutes]]

Latest revision as of 00:06, 18 February 2021

Virtual meetup, at 8pm CET: https://meet.ffmuc.net/eventgrid

Participants: ecki, martin, chewie, nico, tkteun, jeremail, uli

Personal updates

Chewie

  • Has one of Martins charge controllers to play with
  • Added some information to the wiki, e.g. some information on Charge_Controllers he tried out

Martin

Working on Charge Controllers

  • still has some 10A controllers for sale
  • waiting for the 20A controllers to arrive
  • Over-the-air updates via ESP32
  • Playing around with OpenEnergyMonitor, InfluxDB/Grafana, etc.

Looking for some information on LoRaWAN

  • Severin has been at The Things Conference, there are some interesting talks

Looking into BMS - anyone have any experience with that? **crickets**

Nico

  • Got an MCH camper ticket, but might be able to give it to someone who needs it
  • Looking for a DC connector that is case mountable

Jeremail

Got a Beaudens B3801 "Portable-Generator" Battery station

  • LiFePo based - safer than LiIon
  • Inverter produces a clean sinewave, even under load
  • Uses quite a bit of power when idle though
  • Quite cheap [1]

Looking for an XT60 Hub

Severin

  • Built a Solar Charge Controller off a design he found online, with some weird design choices that got him thinking
    • e.g. where to put fuses in the design?
  • Put together the first prototype of his LoRaWAN Batter Pack Monitor, which totally did not work as expected
  • Submitted a proposal for a DC Grid connection box to a Element14 Deisgn Competition (to force him to actually build something) - still waiting on feedback

DC Connectors

Always a good topic

  • Speakon - Quality issues with stuff from AliExpress, local stuff somewhat expensive, but apart from that quite interesting
  • PowerCon - Similar to Speakon, but also used for mains power, which could lead to some unintended issues...
  • XLR 4pin - there is a standard for professional AV equipment using these connectors for 12V

Plugs with the option for data connections?

  • Weipu SP21 was recommended by Zoe some time ago
  • Speakon has 4pins...

Misc

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