Geekservo 2kg 360 Degrees Compatible w/ Lego

This servo can turn 360°, but it is not a "continuous" rotation servo. I should have done more research before buying. But the price is awesome, so no big deal. I hooked it up to an ESP8266 and got it working with minimal effort. The trick is to use the writeMicroseconds() function, along with setting the min and max pulse width (500 min, 2500 max for this servo) when you attach the servo to your GPIO. There is a very helpful YouTube video for this servo by a French guy, who doesn't say a word, but writes the entire program on a whiteboard, and shows how the servo behaves with each edit he makes.