EC Buying 2Pcs Digital Tube Module 0.54 Inch 4 Digit Tube Module LED Display 4 Digit Tube LED Segment Display Module I2C Tube Clock Display for Arduino Orange

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EC Buying 2Pcs Digital Tube Module 0.54 Inch 4 Digit Tube Module LED Display 4 Digit Tube LED Segment Display Module I2C Tube Clock Display for Arduino Orange

Regular Price: US$29.99

Special Price US$24.99

Availability: In stock

Supplier: EC Buying

Category: Business & Industry & Science Industrial Electrical Optoelectronic Products Optoelectronic Displays LED Segment Displays

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Product parameters Product size: 50.94mm * 27.88mm * 11.93mm Working voltage: 5V (3.3V relatively dark) IIC address: default address 0X70 Nixie tube size: 0.54 inch Pin description C: Serial clock line D: Serial data line -: Supply voltage negative +: Positive level of supply voltage +: IIC level control terminal (connected to 3.3V or 5V) A0, A1, A2: IIC data address control terminal IIC address calculation: 0X70+A0+A1+A2 (suspended is 0, welding A0 is 1, A1 is 2, A2 is 4, for example, A0, IIC address at A2 welding=0X70+1 +4=0X75)

The driver chip can 'dim' the entire display from 1/16 brightness up to full brightness in 1/16th steps. It cannot dim individual LEDs, only the entire display at once. There are three address select pins so you can select one of 8 addresses to control up to 8 of these on a single 2-pin I2C bus (as well as whatever other I2C chips or sensors you like). The controller chip takes care of everything, drawing all the LEDs in the background. All you have to do is write data to it using the 2-pin I2C interface. This module solves the annoyance of using 18 pins or a bunch of chips by having an I2C constant-current matrix controller sit neatly on the back of the PCB. This version of the LED backpack is designed for two dual 14-segment "Alphanumeric" displays. These 14-segment displays normally require 18 pins (4 'characters' and 14 total segments each).