{"product_id":"sp3485-3-3v-uart-to-rs485-transceiver-module-32-nodes-rj45-screw-terminal","title":"SP3485 3.3V UART to RS485 Transceiver Module — 32 Nodes, RJ-45 \u0026 Screw Terminal","description":"\u003ch2\u003eSP3485 3.3V UART to RS485 Transceiver Module — 32 Nodes, RJ-45 \u0026amp; Screw Terminal\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003eSP3485 RS485 transceiver module\u003c\/strong\u003e is designed specifically for 3.3V microcontrollers (ESP32, STM32, Raspberry Pi) — operating from a single +3.3V supply while remaining interoperable with +5V RS485 bus devices. The SP3485 IC provides -7V to +12V common-mode input voltage range for robust noise immunity. RS485 I\/O is broken out to an RJ-45 connector, 3.5mm screw terminal, and 0.1\" pitch header for flexible wiring. Driver\/receiver enable is connected to the RTS line for automatic flow control.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransceiver IC:\u003c\/strong\u003e SP3485\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 3.3V (single supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLogic Compatibility:\u003c\/strong\u003e Interoperable with 5V logic devices\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommon-Mode Range:\u003c\/strong\u003e -7V to +12V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBus Nodes:\u003c\/strong\u003e Up to 32 transceivers per bus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlow Control:\u003c\/strong\u003e RTS pin controls driver\/receiver enable (auto direction)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Protection:\u003c\/strong\u003e Driver short-circuit protection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnectors:\u003c\/strong\u003e RJ-45, 3.5mm screw terminal, 0.1\" header\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 0.9 × 1.0\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSP3485 vs MAX485 for 3.3V MCUs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSP3485 (this module):\u003c\/strong\u003e Native 3.3V supply, 5V bus compatible — for ESP32, STM32, Raspberry Pi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMAX485:\u003c\/strong\u003e 5V supply required — needs level shifter for 3.3V MCUs\u003c\/li\u003e\n  \u003cli\u003eSP3485 is the correct choice for 3.3V microcontroller RS485 applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eESP32 \/ STM32 Modbus RTU master\/slave\u003c\/li\u003e\n  \u003cli\u003eRaspberry Pi RS485 industrial sensor network\u003c\/li\u003e\n  \u003cli\u003e3.3V MCU to RS485 bus interface\u003c\/li\u003e\n  \u003cli\u003eBuilding automation RS485 network node\u003c\/li\u003e\n  \u003cli\u003eLong-distance serial communication (up to 1200m)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSP3485 3.3V RS485 transceiver module — 32 nodes, RJ-45 and screw terminal, RTS flow control for ESP32\/STM32 Modbus RTU and industrial RS485 network projects.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991447392491,"sku":"\u003cnone\u003e","price":6.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/3-3v-uart-to-rs485-sp3485-transceiver-module.webp?v=1761805101","url":"https:\/\/keszoox.com\/products\/sp3485-3-3v-uart-to-rs485-transceiver-module-32-nodes-rj45-screw-terminal","provider":"Keszoox","version":"1.0","type":"link"}