Vender [I] MAX3485 Module TTL To RS485 Module MCU Development Accessories To Serial UART [HOT] al mejor precio

This module features: All the chips we guarantee are brand new imported industrial-grade chips, which can reach a distance of thousands of meters. The ESD protection with plus or minus 15KV Chip driver is set rate, reduce EMI, and reduce caused by the improper matching cable terminal signal reflection, making the error-free signal transmission rate is as high as 500 KBPS. A receiver that has a unit load of 1/4 is an impedance that supports multiple communication and allows for a bus that is connected to no more than 128 devices. Industrial-grade chips working temperature can reach to 40 ° to + 85 °. This module can be hot plug, no other 485 chip heat plug is dead phenomenon. The power supply is used with the tantalum electrolytic capacitor, and the double capacitor is used for high low-frequency power filtering Using double transient suppression diode, the over-voltage protection performance is excellent 10 Ω current protection resistance, patch designed to improve 485 signal integrity It has terminals and welded lead holes, easy to debug and fixed wiring, and welding leads can improve the reliability of the signal The RS485 and the TTL signal are all single-sided, ensuring the quality of the signal and improving signal integrity Spread copper over large areas to prevent signal interference It has 2.54 interval hole welded hole for your secondary development It has the M3 screw hole which is quite commonly used now, and the installation is convenient and reliable Have 120 Ω termination resistor, can make short sub R16 can termination resistor With power supply and RXD, TXD signal, receiving and receiving The Angle pin is introduced to facilitate testing Support 3.3 V and 5V signal control and compatibility Package includes:1Pc TTL To RS485 Module It is well known that the flow control of 485 signal is very difficult to write programs, especially in some unknown communication data protocols. You don’t know the amount of data per packet and you don’t know when to switch the direction of sending and receiving. Then you can use our store’s 485 automatic flow control. Module to solve the above troubles. The protection function of this module is beyond value. You can compare with other 485 control modules, and you will find that the design of this module is reasonable and super value. The TTL to 485 automatic flow control module launched by this store uses MAXIM’s 485 chip with integrated automatic transmission and reception functions, and never uses an external automatic control chip. It is guaranteed that each is a new original chip, which is safer and more reliable than other automatic flow control methods. . This module is designed and produced by the store's joint in-service hardware engineers based on rich experience in actual product research and development, and each module has been strictly tested to ensure that it supports 500Kbps baud rate and below (the current mainstream 2400bps, 4800bps, 9600bps of Shenma , 19200bps, 38400bps, 57600bps, 115200bps, 128000bps, 256000bps, etc. are independently identified and automatically select the appropriate communication rate mode), and no external control chip is used. At the beginning of the design of this module, it is considered to be used in harsh environments, so the signal integrity and EMC characteristics of the module are improved. This chip has been used in formal industrial-grade products, so the performance is very reliable. The module is recommended to use 5V power supply (because the 485 signal level range is 2-6V, the long-distance reliability of 3.3V power supply is reduced), and both 3.3V and 5V signal control can be used (Note: The power supply uses 5V, and the signal uses 3.3V support. We have done signal protection, please rest assured)