Key Display For AVR Arduino New 8-Bit Digital LED Tube 8-Bit TM1638 Module

DESCRIPTION: 

100% brand new and high quality
8 Bits. 8 keys. 8 LEDs. 8 digital tubes. common cathode LED digital tube.
With TM1638 Chip. this module gather more than three common SCM peripheral circuits.
The advantage is only three IO ports will be occupied when it drives.
SCM doesn't need to work for scanning display and key scanning.
It only need to read the relevant register to send display data or test button so it save MCU resources effectively.
Keys are sensitive and display effectively.

Specifications:
The rated voltage: DC12V
Voltage range: DC7.0 V-13.6 V
The input power: 0.24 A
The rated speed: 9500 R.P.M
Temperature range:-10-70C
expect life: 25C L10 when expected life 50000 hours
Bearing structure: free maintenance dual ball bearings
Rotation direction: the wind from stents place eduction. facing the rotor counter-clockwise
The wiring way: + red-black signal: blue (blue line. the alarm line speed. it is necessary to pay attention to). Line about 20 cm long
The biggest air volume: 26.8 m / h
The electric motor protection : overload protection. wrong level protection and stall lock current protection
Minimum wind pressure : 0.. 120 Pa
Noise index : 41.9 dB (A)
Material qualitative material: glass fiber reinforced plastic. PBT shell. PA blades
Function explain: electronic reversing the rotor dc fans. complete electronic directional control components
Color: Blue as picture show
Size: 75mm x 48mm/2.95"x1.89"(inch) (approx)
Net Weight: 24g