Pump
Peristaltic Dosing Pump
Precision tube pump for accurate liquid dosing.
A peristaltic pump that moves liquid through flexible tubing without contacting the pump mechanism — ideal for precise, contamination-free dosing.
Specifications
| Operating voltage | 12V DC on most common hobby dosing pumps (5V, 6V, and 24V variants also exist — confirm your specific model before wiring) |
| Flow rate | ~100 mL/min typical for common small dosing pumps |
| Current draw | ~200-700mA depending on voltage and model |
| Fluid path | Liquid only contacts the silicone tubing, not the pump mechanism — good for keeping different liquids from cross-contaminating |
Pinout
| Pin | Name | Description |
|---|---|---|
| 1 | + | Positive DC motor lead — drive via MOSFET, transistor, or relay, same as any brushed DC motor |
| 2 | - | Negative DC motor lead |
Treat it electrically like any brushed DC motor — never wire it directly to a GPIO pin. Swap the two leads to reverse the pumping direction.