HiLetgo KY-040 Rotary Encoder Module (5-Pack)
The classic KY-040 encoder — read rotation and a push-button, perfect for a manual jog control.
Best for: Manual jog control & feedback
by HiLetgo
★ Best for: Knob control & joint angle feedback
Knob control and cheap angle feedback — twenty 10K pots for the price of a spare servo.
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Potentiometers do two jobs on a DIY arm. As an input, one knob per joint is the simplest possible controller — turn it and the matching servo follows — and it is how many first Arduino arms are driven. As a sensor, a pot coupled to a joint's axis gives an absolute angle reading on an analog pin, which is exactly the feedback mechanism inside a hobby servo. Wire the outer legs to 5V and ground and the centre leg to an analog input. A twenty-pack covers a knob controller for a 6-DOF arm plus feedback experiments.
| Type | WH148 single-turn, linear (B10K) |
|---|---|
| Resistance | 10 kΩ |
| Quantity | 20 |
| Shaft | 15 mm |
HiLetgo WH148 10K Potentiometer (20-Pack)
See the current price, stock and reviews on Amazon.
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The classic KY-040 encoder — read rotation and a push-button, perfect for a manual jog control.
Best for: Manual jog control & feedback
Five KY-040 encoder breakouts — pre-soldered headers, ready for the breadboard.
Best for: Breadboard prototyping
Bare EC11 encoders with knob caps — the panel-mount choice for a custom control box.
Best for: Custom control panels
HiLetgo WH148 10K Potentiometer (20-Pack)
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