Photo: Suyash Dwivedi · CC BY-SA 4.0
SG90 micro servo
A small servo that turns its horn to an angle from 0 to 180 degrees and holds it. Good for a sensor that looks left and right.
See the price in the shop
Where to buy
Uzum MarketUzum Marketdagi qidiruv natijalari · Delivery on the seller’s terms · All of UzbekistanSee the price in the shopBuy
Prices and stock are set by the shops. The site sends you to the shop; you buy there.
Power
The SG90 wants 4.8–6 V and can take up to about 1 A for a moment when it starts to move. On the robot car the Uno's 5V gives only about 4.4 V, so power the servo from the battery holder (about 6 V) or from a separate pack, and join the grounds.
Pins D9 and D10
The Arduino Servo library uses Timer1. While it runs, analogWrite() no longer works on D9 and D10.
Read Servo motors explained.
