Factory Outlet DC 12V 8-Bit Digital LED Tube Arduino Sensor Module 8-Bit TM1638 Module Key Display
75mmx48mm DC 12V 8-Bit LED 8-Bit LED Digital Tube 8 Keys TM1638 Display Module
Specifications:
| Size | 75mmx48mm/2.95"x1.89"(inch) (approx) |
| rated voltage | DC12V |
| Voltage range | DC7.0 V-13.6 V |
| input power | 0.24 A |
| rated speed | 9500 R.P.M |
| Temperature range | -10-70 ° C |
| Txpect life | 25 ° C 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 |
| Noise index | 41.9 dB (A) |
Including the following resources:
1. 8 key
2. 8 LED common cathode
3. 8 a digital tube common cathode
Use TM1638 digital tube drive chip to drive common cathode LED digital tube.
How to connect:
VCC GND 5V power supply, STB CLK DIO MCU I/O port.
This module for the chip TM1638, set the above three kinds of single chip microcomputer common peripheral circuit, the biggest characteristic is to simply take microcontroller three IO mouth can drive, scanning display and key scan don't need microcontroller intervention, only need to register to display data related to reading and writing or testing buttons, save MCU resources. Buy the module provides an example program.
Wiring methods :
VCC GND connected 5V supply, STB CLK DIO connected microcontroller IO port.
Photos
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