RS-485 Transceiver

An RS-485 Transceiver Module is a compact communication device designed to interface a microcontroller (e.g., Arduino, ESP32, GLYPH, STM32) for long-distance, reliable serial communication. Unlike standard UART (TTL), RS-485 uses differential signaling to resist electrical noise, making it suitable for industrial environments. In this document, you will understand how to interface the RS-485 Transceiver with GLYPH, enabling robust data transfer for applications such as Modbus networking, industrial automation, and remote sensor monitoring.

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Pin Configuration

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Key Features

• Differential signaling for high noise immunity
• Long-distance communication (up to ~1200 meters)
• Supports multi-device (multi-drop) network
• Half-duplex communication support
• UART to RS-485 signal conversion
• Low power operation

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Applications

• Industrial automation systems
• Modbus communication networks
• Smart energy meters
• Building automation & HVAC control
• PLC and SCADA systems
• Long-distance sensor networks

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Step 1: Hardware Required

1. Glyph Board (e.g., Glyph ESP32-C3)
2. G-MOD RS-485 Transceiver Module

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Step 2: Circuit Diagram

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