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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.
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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- Firmware:Â GRBL
- Modular stepper motor drivers:Â 3
- Limit switches:Â 6
- Micro-stepping:Â 1/16
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- Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825, and others) (Not Included)
- Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )
- Compact design.
- Runs on 12-36V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
- Please note that this is an unassembled kit and needs soldering.
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- Microcontroller: ATmega168 or ATmega328V
- Operating Voltage: 2.7-5.5 V
- Digital I/O Pins: 14
- PWM Channels: 6
- Analog Input Channels: 6
- DC Current per I/O Pin: 40 mA
- Board will run from 2V to 5V.
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- Rated maximum output: ± 4.5A, 40V, Peak 5A, low output impedance, source 0.5?,
- the receiving end of 0.4?, low voltage shutdown, thermal parking and circulation.
- circuit protection. After I design, you can set the current output of 0.5A 1A 1.8A 2.5A.
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- The drive is suitable software mach2, mach3, (mach3 have support WIN7 system), KCAM4 like.

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