Stepper Doser: ESP32 Precision Liquid Dosing Contr

Back to overview

ESP32 multi-channel stepper doser with calibrated scheduling, OTA, and a built-in web UI for precise liquid control.

Alexey Volkov

Back to overview
Files 0
Components 2
logs 1
Instructions0
Discussion0

« Back to project details Sort by:

Working Reef Dosing Setup
05/26/2026 at 14:28 • 0 comments
Working Reef Dosing Setup

The current prototype is fully operational and running in a reef aquarium setup.

Hardware Configuration
- Two dosing motors
- Repurposed 3D printer controller motherboard
- 24V AC/DC power supply
The pump motor current is configured to 300 mA. This lower current setting is intentionally optimized for continuous operation, significantly reducing motor and driver heat generation during long dosing cycles.

The system has been stable in extended testing and provides smooth low-speed dosing performance suitable for reef aquarium applications.