{"product_id":"ttl-to-rs485-module-uart-level-converter-auto-flow-control","title":"TTL to RS485 Module UART Level Converter 3.3V 5V – 1\/5\/10pcs","description":"\u003ch2\u003eTTL to RS485 Serial UART Level Conversion Module\u003c\/h2\u003e\n\u003cp\u003eUpgrade your electronics projects with this compact \u003cstrong\u003eTTL to RS485 Conversion Module\u003c\/strong\u003e. Designed for seamless bidirectional signal conversion between TTL UART and RS485 levels, this module is an essential component for microcontroller projects, industrial automation, long-distance serial communication, and embedded systems development.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBidirectional Conversion:\u003c\/strong\u003e Converts TTL (3.3V\/5V) UART signals to RS485 differential signals and vice versa for reliable, noise-resistant data transmission.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomatic Flow Control:\u003c\/strong\u003e Built-in automatic direction control eliminates the need for manual switching between transmit and receive modes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility:\u003c\/strong\u003e Supports both 3.3V and 5V power supplies, making it compatible with Arduino, Raspberry Pi, STM32, ESP32, and other common development platforms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSMD Components:\u003c\/strong\u003e Surface-mount design ensures a stable, compact, and durable build for professional and hobbyist applications alike.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable Quantity:\u003c\/strong\u003e Available in packs of 1, 5, or 10 pieces to suit your project scale.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Compact Form Factor:\u003c\/strong\u003e Measuring just 1.5 × 4.3 cm and weighing only 1.69 g — easy to integrate into tight spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 × 4.3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.69 g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.3V \/ 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTTL UART ↔ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSMD\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Quantities\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 pc, 5 pcs, 10 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTTL to RS485 Conversion Module (quantity as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino, Raspberry Pi \u0026amp; ESP32 serial communication projects\u003c\/li\u003e\n  \u003cli\u003eIndustrial sensor networks and PLC communication\u003c\/li\u003e\n  \u003cli\u003eLong-distance wired data transmission\u003c\/li\u003e\n  \u003cli\u003eEmbedded system development and prototyping\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and maker projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ccb-flat-round-spacer-beads-diy-jewelry-making\"\u003e4\/6mm CCB Flat Round Spacer Beads DIY Jewelry Making 100-200pcs\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/round-aluminum-wire-diy-jewelry-making-1mm-3mm\"\u003eRound Aluminum Wire 1mm–3mm | DIY Jewelry Making Wire\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does the TTL to RS485 Module do?\u003c\/h4\u003e\n\u003cp\u003eA: The TTL to RS485 Module converts TTL-level UART serial signals (3.3V or 5V) to RS485 differential signals and back, enabling reliable long-distance serial communication between microcontrollers and RS485-compatible devices such as sensors, PLCs, and industrial equipment.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this module compatible with Arduino and Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The module supports both 3.3V and 5V power supplies, making it fully compatible with popular platforms including Arduino, Raspberry Pi, STM32, ESP32, and most standard development boards without any additional level-shifting hardware.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this TTL to RS485 Module require manual direction control?\u003c\/h4\u003e\n\u003cp\u003eA: No. This module features automatic flow control, which automatically switches between transmit and receive modes. This simplifies firmware development and makes integration into your project fast and straightforward.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many modules do I get per order?\u003c\/h4\u003e\n\u003cp\u003eA: You can choose from three quantity options at checkout: 1 piece, 5 pieces, or 10 pieces — perfect whether you need a single module for prototyping or a bulk pack for production.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the TTL to RS485 Module do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The TTL to RS485 Module converts TTL-level UART serial signals (3.3V or 5V) to RS485 differential signals and back, enabling reliable long-distance serial communication between microcontrollers and RS485-compatible devices such as sensors, PLCs, and industrial equipment.\"}}, {\"@type\": \"Question\", \"name\": \"Is this module compatible with Arduino and Raspberry Pi?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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