I am working with a teacher on a micro:bit question for her class and she is wondering if 3 servos can be safely and functionally attached to 1 micro:bit.
I think three servos are ok, but providing sufficient power can be a concern.
It may be easier if you use one of the many motor boards that support multiple servos. For example, the DFRobot micro:Driver (https://www.dfrobot.com/product-1738.html) supports up to 8 servos. I haven’t used it, but it looks promising…there are a lot of similar boards from a variety of companies.