--- product_id: 180602828 title: "MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc)" brand: "knacro" price: "KD 1.00" currency: KWD in_stock: true reviews_count: 4 url: https://www.desertcart.com.kw/products/180602828-max3485-3-3v-rs485-to-ttl-signal-mutual-conversion-module store_origin: KW region: Kuwait --- # Overvoltage protection 120Ω termination resistor for long-distance LED signal & power indicators MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) **Brand:** knacro **Price:** KD 1.00 **Availability:** ✅ In Stock ## Summary > ⚡ Power your data flow with confidence — the MAX3485 module keeps your signals safe and sharp! ## Quick Answers - **What is this?** MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) by knacro - **How much does it cost?** KD 1.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/180602828-max3485-3-3v-rs485-to-ttl-signal-mutual-conversion-module) ## Best For - knacro enthusiasts ## Why This Product - Trusted knacro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Industrial-Grade MAX3485ESA Chip:** Reliable, high-performance RS485 to TTL conversion for seamless communication. - • **Plug-and-Play with Wiring Diagram:** Easy integration with 2.54mm pitch pins and clear wiring guide for fast setup. - • **Real-Time Signal & Power LEDs 🔴:** Instant visual feedback on send/receive status for effortless monitoring. - • **Built-In Overvoltage Protection ⚡:** Safeguards your devices from damaging voltage spikes, ensuring durability. - • **Integrated 120Ω Termination Resistor 📶:** Enables stable, long-distance data transmission up to 100+ feet without signal loss. ## Overview The MAX3485 3.3V RS485 to TTL Signal Conversion Module features an industrial-grade MAX3485ESA chip with built-in overvoltage protection and real-time LED indicators for power and data transmission status. It includes a 120Ω termination resistor for stable long-distance communication and uses tantalum electrolytic capacitors for superior power filtering. Designed for easy integration with all pins accessible and a wiring diagram included, this module ensures reliable, high-quality RS485 to TTL signal conversion ideal for professional-grade networking projects. ## Description 1, The module uses all industrial MAX3485ESA chip 2, With 485 signal overvoltage protection 3, With a signal, power LED indicator, send and receive situation panoramic view 4, With 120 ohm termination resistor strobe function, long-distance communication, can be directly shorted 5, The module will be 485 signal to the MAX485 signal can withstand the common-mode voltage of -7 to +12 V, the module can be solved as a result of the 485 signal common-mode voltage is too high, resulting in 485 burn or heat problems. 6, The module uses tantalum electrolytic capacitors to filter the power supply, the power quality better. 7,The module pin pin can be directly inserted in the hole plate 2.54 pitch for easy development 8, Our all modules have to undergo a rigorous test to ensure quality 9, The back of the module with a wiring diagram, to facilitate your use Package Included: 1xRS485 to TTL Signal Mutual Conversion Module Review: Works great! R5 Not installed for Termination - The adapter works great with an EP8266 to interface to another RS-485 device! Have run it at 115200 baud over a 100 foot cable. No issues. * Note: Does NOT come with resistor R5 installed to enable local termination. To enable local termination, one must jumper the two mounting pads for resistor R5. Product schematic in the listing shows a 0 ohm resistor in the circuit for R5. This is incorrect. Review: Works great - This review is for the single pack of the max 3485 3.3v board. There are 3 LEDs, one for power, one for tx, and one for rx. The board worked fine and the LEDs also work as expected to show bus traffic. There are empty solder pads to short if you want to enable termination. Good product. ## Features - The module uses the industrial grade chip MAX3485ESA. - With 485 signal overvoltage protection. - With a signal, power LED indicator, send and receive situation panoramic view. - With 120 ohm termination resistor strobe function, long-distance communication, can be directly shorted. All pins lead out. - The module uses tantalum electrolytic capacitors to filter the power supply, power supply superior quality. Product back with wiring diagram. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07V5LND1T | | Best Sellers Rank | #1,483,232 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7,040 in Power Converters | | Customer Reviews | 4.1 4.1 out of 5 stars (9) | | Date First Available | December 26, 2017 | | Is Discontinued By Manufacturer | No | | Item Weight | 0.634 ounces | | Item model number | RS485 to TTL | | Manufacturer | KNACRO | | Package Dimensions | 2.5 x 1.8 x 0.2 inches | ## Product Details - **Brand:** KNACRO - **Color:** Red - **Item Weight:** 0.02 Kilograms - **Output Voltage:** 3.3 Volts - **Plug Format:** Type B ## Images ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 1](https://m.media-amazon.com/images/I/51U7COsjxpL.jpg) ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 2](https://m.media-amazon.com/images/I/51yaCYZhBAL.jpg) ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 3](https://m.media-amazon.com/images/I/716xWl7MZ5L.jpg) ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 4](https://m.media-amazon.com/images/I/71ZE7J8jX9L.jpg) ![MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - Image 5](https://m.media-amazon.com/images/I/71mF7K9veUL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great! R5 Not installed for Termination *by K***S on December 17, 2023* The adapter works great with an EP8266 to interface to another RS-485 device! Have run it at 115200 baud over a 100 foot cable. No issues. * Note: Does NOT come with resistor R5 installed to enable local termination. To enable local termination, one must jumper the two mounting pads for resistor R5. Product schematic in the listing shows a 0 ohm resistor in the circuit for R5. This is incorrect. ### ⭐⭐⭐⭐⭐ Works great *by R***O on October 5, 2020* This review is for the single pack of the max 3485 3.3v board. There are 3 LEDs, one for power, one for tx, and one for rx. The board worked fine and the LEDs also work as expected to show bus traffic. There are empty solder pads to short if you want to enable termination. Good product. ### ⭐⭐⭐⭐⭐ Works with a Raspberry pi *by G***N on March 9, 2019* I was having issues with conflicts of the USB of a pi zero so I switched from a USB to RS485 to this device. I had to work on the timing but once that was calculated the module is soldi and works well ## Frequently Bought Together - KNACRO MAX3485 3.3V RS485 to TTL Signal Mutual Conversion Module for Overvoltage protectionWith Signal Indicator (3.3V 1Pc) - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.kw/products/180602828-max3485-3-3v-rs485-to-ttl-signal-mutual-conversion-module](https://www.desertcart.com.kw/products/180602828-max3485-3-3v-rs485-to-ttl-signal-mutual-conversion-module) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-20*