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MAX485 to TTL RS485 converter module
MAX485-based TTL to RS485 converter module for long-distance, noise-resistant serial communication with microcontrollers.
Description
The MAX485 to TTL RS485 Converter Module is a compact and efficient communication interface designed to convert TTL-level UART signals to RS485 differential signals. Built around the reliable MAX485 transceiver IC, this module enables long-distance, noise-resistant serial communication in industrial and embedded applications.
It supports half-duplex RS485 communication and is ideal for use with microcontrollers such as Arduino, ESP32, ESP8266, Raspberry Pi, and STM32. Common applications include industrial automation, MODBUS networks, smart meters, PLC communication, and multi-node data transmission systems. The module operates on a 5V supply and features easy-to-use TX, RX, DE, and RE control pins.
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- Power requirements: +5 VDC
- 30 mA idle
- 46-220 mA active (depending on speech parameters and output load)
- Â Communication: Asynchronous 9600 bps serial (8N1)
- Dimensions: 1.25″x1.5″x0.37″
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 Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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 Voice effect optimization
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Dimension: 33*27.5mm
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With mounting holes
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