Hobby servo (SG90)
SG90 micro servo · 4.8–6 V · 50 Hz pulses: 0.5 ms = 0°, 1.5 ms = 90°, 2.5 ms = 180° · ~10 mA holding, 150–250 mA while moving
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: TowerPro SG90
Pins
- GND (brown)
- +5 V (red)
- Signal (orange)
Ratings and limits
| Supply | 4.8–6 V |
|---|---|
| Stall current | ≈ 650 mA |
| Signal | 50 Hz, 0.5–2.5 ms pulses |
How to use it
Positioning: give it its own 5 V supply with a shared ground; the ESP32 3.3 V signal is enough to drive it.