TTL to RS485 Power Supply Converter Board 3.3V 5V Hardware Auto Control Module

This TTL to RS485 converter board enables reliable serial communication between TTL-level devices and RS485 networks. It supports both 3.3V and 5V logic levels with hardware auto-control, making it suitable for industrial and maker projects.

Specifications

• Logic level: 3.3V or 5V (selectable via jumper)
• Interface: TTL (UART) to RS485
• Data direction control: Hardware auto-control (no software pin needed)
• RS485 transceiver: MAX485 or equivalent
• Baud rate: Up to 2.5 Mbps
• Power supply: 3.3V or 5V DC (from host board)
• Dimensions: Approximately 30 x 20 mm

Compatible with

• Arduino Uno, Mega, Nano
• ESP32, ESP8266 (NodeMCU, Wemos D1 Mini)
• Raspberry Pi (any model with UART pins)
• STM32, PIC, and other microcontrollers with TTL UART

What you can build with it

• Multi-node sensor networks for temperature, humidity, or pressure monitoring
• Industrial automation controllers communicating over long distances
• Home automation systems connecting multiple Arduino or ESP32 nodes

Built and Backed by Compoden

Every module includes access to our AI build companion, delivered via QR code, email, or WhatsApp, to help you wire and program it into a working project. With 10 years of experience supplying makers and institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI, cards, or Cash on Delivery, anywhere in India.

What is the difference between hardware auto-control and software control?

Hardware auto-control uses the RS485 transceiver's internal logic to switch between transmit and receive modes automatically, without needing a dedicated microcontroller pin. Software control requires an extra GPIO pin to toggle direction, which can be less efficient.

What payment options are available for this TTL to RS485 converter?

You can pay using UPI, credit/debit cards, or Cash on Delivery (COD). All options are available across India.

How long does delivery take?

We ship this module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery typically takes 3–7 business days depending on your location.