Set 10 Công Tắc Điều Khiển Động Cơ Bước 5v 28byj-48 + Uln2003

2 set Electronic Accessories:10 x Mini Switch & 1 x Drive ule Board ULN2003
3 terminals, applicable to AC control circuits.Designed to control the movement of a mechanical part.Typically utilized in industrial control applications to automatically monitor and indicate whether the travel limits of a particular device have been exceeded.High precision mechanism design offering acute operation and long life.
In snap action contacts, the movement of the actuator applies force to an overcenter mechanism.This mechanism creates a quick change in contact state when the trip point is reached.Reversing the motion of the actuator to a given reset point causes the contacts to snap back to their original position.Snap action contacts have different trip and reset points.
The distance between the trip and reset point is called the travel to reset, hysteresis, or differential.Finite travel to reset helps to avoid multiple changes of state if the object actuating the switch is subject to vibration.Snap action contacts ensure repeatable performance in applications that invoe low speed actuators.
The amount of travel of the contacts is also not dependent on the amount of travel by the actuator.5 Line 4 phase can be driven by ordinary uln2003 chip can also be connected in phase 2.development board used for.

supporting the use of a direct plug and easy to use stepper motor used in the development board.
Stepper motor driver board with ULN2003
A, B, C, D four-phase LED indicates the status of the stepper motor work
Stepper motor with a standard interface, when used directly pluggable
material:CCL + Plastic & Metal
colour:green + Black, Red, Sier Tone
Product Name : Mini Switch
el : SV-163-1C25
Actuator Type : Long Hinge Lever
Rating : 3-16A 250VAC
Action Type : Momentary
Contact configuration :SPDT 1NO 1NC
Switch Body Size : 3 x 1 x 1.6cm / 1.2inch x 0.39inch x 0.63inch(LxWxH)
Fixing Holes Dia. : 0.35cm / 0.14inch
Actuator Size : 5.1 x 0.45cm /1.1inch x 0.18inch(LxW)
100 brand new and high quality
Diameter:28mm/1.10 inch
Length:274mm/10.79 inch
Step angle:5.625 x 1 / 64
Reduction ratio:1 / 64

packing include:
1 x Drive ule Board ULN2003
1 x Stepper motor 28BYJ-48
10 x Mini Switch

Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1