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Repairable
We design for the long haul. Hardware should not be a mystery — or a death sentence for a product. Our gadgets are built to be opened, understood and fixed.
Designed & built in Edessa, Greece · Since 2024
DIY electronics
that grow with you.
Modular IoT boards, open firmware and 3D-printed enclosures for makers who would rather own their hardware than rent it from a cloud.
60+
modules shipped
The core creed
Three rules we will
not design around.
We refuse to participate in the culture of disposable, black-box technology. Every device we make is built on three non-negotiable pillars.
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Replaceable
Through modularity, parts can be swapped and upgraded. You shouldn't have to throw away the brain just because you want a new sensor.
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Reprogrammable
We are fundamentally against proprietary, non-transparent code. If you can't look at the code, you don't truly own the device.
The SprigStack ecosystem
One brain.
Every branch.
A plant grows from a root to a thorn, a canopy, a bloom. SprigStack works the same way: start with the Sprig-C3, then stack only the capability you actually need. Every board speaks ESPHome and drops into Home Assistant.
Sprig-C3
The brain — ESP32-C3, USB-C, onboard BMS
Root
Soil moisture, light and temperature
Canopy
Air quality, temperature, humidity
Thorn
Dual MOSFET — pumps, fans, LED strips
Sap
Four-channel AC measurement
Trunk
Isolated mains switching
Bloom
Addressable LED matrix display
Start here
The boards people buy first.
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The SprigStackSale
Sprig-C3
ESP32-C3 development board
The brain. USB-C, onboard battery management and capacity monitoring, and great deep-sleep power efficiency.
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The SprigStackSale
Root
Complete plant monitoring PCB
Capacitive soil moisture, light and temperature & humidity on one probe. Reports straight into Home Assistant.
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The SprigStackSale
Trunk
AC switch expansion
Mains switching with an isolated relay and onboard AC-DC supply. The Trunk, Home Assistant ready.
In the wild
What the maker press said.
“Compared to earlier versions, it offers a better user experience and improved power efficiency.”CNX Software Tomisin Olujinmi
“Adding just 66.1 µA to the Espressif ESP32-C3's power draw, this compact dev board offers easy Home Assistant integration.”Hackster.io Gareth Halfacree
Digital sovereignty
Take the “smart”
back from big tech.
We stand against devices that depend on corporate clouds and hidden telemetry. When you buy a Sprig Labs product, it is yours — completely.
- Full ownership
- No account, no subscription, no phoning home. The board on your bench answers to your network and nobody else's.
- Open by default
- All our firmware is open source and free. We provide the logic so you can provide the ingenuity.
- Community power
- An ecosystem where makers share code and functionality — expanding the smartness of the world collectively and transparently.
Custom work
From a napkin sketch
to a finished enclosure.
Electronics design, embedded systems and mechanical prototyping — carried from concept to functional hardware in one Greek lab.
Custom 3D printing
An in-house FDM printer farm turning your geometry into parts that actually fit the board they house.
Custom PCB design
We don't just design circuits; we cultivate hardware that lasts — repairable, replaceable, reprogrammable.
Build your smart home system, one Sprig at a time.
Whether you're an experienced engineer or a first-time hacker — subscribe, tinker, support. Help us turn “proprietary” into “personal”.