WiFi Controlled Fish Feeder (Continuous Servo System) (ESP8266 + Blynk)
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This project uses a Wemos D1 Mini (ESP8266) and a continuous rotation servo motor to create a simple WiFi-controlled mot
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Updated at source:
Model information
- Source
- Printables
- Category
- Pets
- License
- Creative Commons — Attribution — Noncommercial
Features
Forward and reverse control
Adjustable motion duration
Wireless control over WiFi
Simple and lightweight setup
Compatible with continuous rotation servos
Hardware
Wemos D1 Mini / ESP8266
Continuous rotation servo motor
Jumper wires
USB cable
Wiring
Servo → Wemos D1 Mini
Signal → D4
VCC → 5V
GND → GND
Blynk Setup
Create a new template and device in the Blynk app.
Datastreams
V1 — Forward Button
Virtual Pin: V1
Data Type: Integer
Min: 0
Max: 1
Widget Type: Button
Mode: PUSH
V2 — Reverse Button
Virtual Pin: V2
Data Type: Integer
Min: 0
Max: 1
Widget Type: Button
Mode: PUSH
V3 — Duration Selector
Virtual Pin: V3
Data Type: Integer
Min: 0
Max: 4
Widget Type: Segmented Switch
Duration Values
Label | Value |
|---|---|
0.1s | 0 |
0.2s | 1 |
0.3s | 2 |
1s | 3 |
3s | 4 |
Notes
This project is designed for continuous rotation servos.
Standard 180° servos will not behave correctly.
Some servos may require slight tuning for stop position calibration.
Usage
Select a duration in the Blynk app
Press Forward or Reverse
The servo rotates for the selected time
Motion stops automatically
Perfect for small RC mechanisms, feeders, dispensers, rotating platforms, or DIY automation projects.