Description: These small steppers are a great way to get things moving, especially when positioning and repeatability is a concern.
When using a current limiting driver such as the Easydriver or Big Easydriver, a 12 volt power supply can be used as long as you adjust the current level to 400mA or less. If using a non current limited driver (like a L293D or an H-bridge) you will need to lower your input voltage to keep the motor current below 400mA.
This is a Bipolar motor.
Based on 2 ratings:
I purchased a pair of these for possible use to power the 2 wheels of a small robot. The small shaft without flats would make it more difficult to connect to robot wheels than the shafts with flats as on small DC robot motors or the unipolar 28BYJ-48. The robots I’m making require very precise and reproducible movements, so stepper motors are required. There are now unipolar motor drivers circuits that require only 3 output pins to control both motors (rather than 8 pins with 2 H-bridges) so 28BYJ-48’s work fine, have shafts with flats and are very cheap.
Performs just as expected, even though I use a 9 volt supply. Plug and play with an Arduino Adafruit V1.2 motor shield.