Has anyone found gears that fit the shaft? The ones shown in "frequntly bought together" are for smaller round shafts.

for anyone looking for this, 5mm shaft, its "flat" part fits a rectangle 3mmx5mm.

Could i use the driver to control a slightly bigger pm55l-048? i would probably need to push 19v through the uln2003.

Yes, you can use the driver to control pm55l-048, the maxmum voltage of ULN2003 can reach 24V.

what is it supposed to do?

It, or they, do nothing - - until you connect a smart source of drive signals. The included "driver boards" are electrical signal drivers to boost the strength of those signals. You might connect these boards between the motors and an Arduino or a Raspberry Pi or some manual speed control circuits for the stepper motors. The signals have to be the rippling sequence of logic pulses needed by the stepper motors. Because these motors have 64:1 gears, you program 64 sequences to get the shaft to go one full turn. Naturally, the gears trade off speed (RPM) for strength (torque) of turning. They also gain precision of output shaft position, which can be moved in STEPS, or fractions, of 1 sixty-fourth of a turn. If your only interest is in speed control, not positioning, you may want to look into DC motors (or gearmotors) and 'H-bridge drivers' and PWM (Pulse Width Modulation) controls.

Do you have instructions on how to set it up/test it with arduino? (newbe)

Google: "arduino 28BYJ-48 sample code" You will get plenty of examples to get you started. Good luck.

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ELEGOO 5 Sets 28BYJ-48 ULN2003 5V Stepper Motor + ULN2003 Driver Board Compatible with Arduino

Product ID: 81603210

Details

Brand
ELEGOO
Material
Metal Plastic
Model Name
EL-SM-003
Speed
9.38 RPM
Voltage
5 Volts

💡4-phase LED status indicators

🔌Plug-and-play ULN2003 driver board

⚙️5V precision stepper motor

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Description

⚙️ Elevate your DIY game with precision and plug-n-play ease!

COMPACT YET MIGHTY - Small footprint (1.37x1.18x0.6 in) fits perfectly in any project setup without bulk.
RELIABLE 5 SET BUNDLE - Get five complete motor + driver combos—ideal for multi-axis or backup needs.
PLUG PLAY POWERHOUSE - Seamlessly connect with Arduino and other dev boards for instant prototyping.
VISUAL FEEDBACK AT A GLANCE - 4-phase LED indicators keep you informed on motor status in real-time.
PRECISION CONTROL AT 9 38 RPM - Smooth, accurate rotation speed for professional-grade robotics and automation.

The ELEGOO 5 Sets 28BYJ-48 ULN2003 5V Stepper Motor kit includes five compact, reliable stepper motors paired with ULN2003 driver boards, designed for seamless Arduino compatibility. Featuring 4-phase LED indicators and a precise 9.38 RPM speed, this bundle empowers makers and professionals to build smooth, accurate motion projects with ease and confidence.

Specifications

ASIN	B01CP18J4A
Brand Name	ELEGOO
Customer Reviews	4.6 4.6 out of 5 stars (821)
Global Trade Identification Number	06976021760015
Included Components	Female to Male Cable
Item Weight	0.21 Kilograms
Manufacturer	ELEGOO
Material Type	Metal, Plastic, Glass/Acrylic
Model	EL-SM-003
Model Name	EL-SM-003
Part Number	EL-SM-003
Speed	9.38 RPM
UPC	746591610357
Unit Count	5.0 Count
Voltage	5 Volts

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4563 kr

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In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

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