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@martinjaeger

Martin Jäger

martinjaeger
Hamburg, Germany

Hey there, my name is Martin and I am the founder and main contributor of the @LibreSolar project.

I'm passionate about open source and want to establish it not only for software, but also for hardware.

Libre Solar is the starting point to develop fully open source products for most essential needs. I am currently working on solar charge controllers (MPPT/PWM), battery management systems and communication devices and protocols. For the future, also power electronics for larger systems (e.g. inverters) are planned.

If you support me, you will allow me to continue the work on open source renewable energy and help to provide energy access to people living off the grid, especially in the global south.

@martinjaeger

Each supporter helps me to push forward the open-source energy transition. Let's get started! 🚀

Current sponsors 1

@pasrom
Past sponsors 1
@fl4p

Featured work

  1. LibreSolar/charge-controller-firmware

    Firmware for Libre Solar MPPT/PWM charge controllers

    C++ 138
  2. LibreSolar/bms-firmware

    Firmware for LibreSolar BMS boards based on bq769x0, bq769x2 or ISL94202

  3. LibreSolar/mppt-1210-hus

    MPPT solar charge controller with dual USB ports

    KiCad Layout 60
  4. LibreSolar/learn.libre.solar

    Building DC Energy Systems (OER)

    Shell 15
  5. LibreSolar/bms-8s50-ic

    Fully integrated 12V-24V BMS using ISL94202

    KiCad Layout 28

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20% towards 5 monthly sponsors goal

@pasrom

pasrom sponsors this goal

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$3 a month

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☕ Coffee Sponsor

Every bit helps, thanks for getting me a coffee.

You’ll receive a Sponsor badge on your profile and I’ll be grateful that you support my open-source work.

$7 a month

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🍪 Snack Sponsor

They've got amazing cookies at café Nasch around the corner. They will keep me going.

$13 a month

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🍜 Lunch Sponsor

Thanks a lot for a decent lunch with something to drink.

If you didn't realize yet: I like prime numbers 😉

$27 a month

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🎁 Generous Supporter

This regular recognition will help to give the ongoing development an incredible boost. 🚀

$53 a month

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📫 E-mail Support Sponsor

If you need help with your own projects, this tier allows me to offer limited support via private e-mails (about once a month). Of course, anyone can always raise questions in the public forum or on GitHub!

$101 a month

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⚡ Prototype Parts Sponsor

Wow, this is amazing. It will allow me to buy parts for a new prototype and create something exciting. You will also get up to 1h of monthly support for your own projects based on Libre Solar via video call.