ITEM NAME:0.54inch Digital Tube LED Module+Wireless Microcontroller Serial Port Module Description: - Digital Tube LED Display Module This version of the LED backpack is designed for two dual 14-segment "Alphanumeric" displays. - HC-12 SI4463 Wireless Serial Port Module Using 433M frequency band external connect antenna with antenna welded hole ANT2, convenient for users to weld spring antenna. - Digital Tube LED Display Module These 14-segment displays normally require 18 pins (4 'characters' and 14 total segments each). - HC-12 SI4463 Wireless Serial Port Module Power supply voltage: 3.2-5.5 V.(if the modules working long hours in emission state, suggested that when the power supply voltage is more than 4.5V, you need concatenating a 1N4007 diode to avoid module built-in LDO got fever). - HC-12 SI4463 Wireless Serial Port Module Default communication distance : about 600 m (communication distance is adjustable up to 1000 m, air baud rate 5000 BPS). Specification: - Digital Tube LED Display Module - Selling Points: LED display I2C control 2 - line control. - Size: approx. 50.7 x 28.4 x 12.4mm / 1.99 x 1.12 x 0.49inch - HC-12 SI4463 Wireless Serial Port Module - Interface protocol: UART/TTL - Material: electronic components - Size: approx. 28×13mm/ 1.10 x 0.51inch Package Included: 4 Piece Digital Tube LED Display Module 1 Piece HC-12 SI4463 Wireless Serial Port Module + 1 Piece spring.HC-12 SI4463 Wireless Serial Port Module Using 433M frequency band external connect antenna with antenna welded hole ANT2, convenient for users to weld spring antenna. - HC-12 SI4463 Wireless Serial Port Module.
