
GrowDoser, IoT nutrient dosing system
Type: In-house product → Order series · Time period: 2021-2025 (Update 2025)
Task
In plant cultivation and the grow shop sector, nutrient dosing is often done manually and inaccurately. Goal: a robust, fully automatic doser with its own hardware, its own housing, and remote control, as a marketable product.
Solution
Complete IoT product from a single source:
- Custom housing design in SolidWorks, manufacturing via 3D printing/CNC
- Firmware in C/C++ on microcontroller
- Windows control panel in C#
- Android app
- GSM connection via SIM800L for remote locations
- Versions GrowDoser Mini & Standard, currently v1.3
Demo: live measurement
In use



Result
- Fully functional in-house product from hardware to app.
- Produced and delivered multiple order series.
- Update 025 with improved sensors and new housing.
Tech Stack
C / C++ Firmware · C# / .NET · Android (Kotlin) · SolidWorks · 3D-Druck · SIM800L GSM · ESP32