--- product_id: 578293205 title: "Opta Lite [AFX00003] - Compact Industrial IoT Controller with Digital I/O, Analog Inputs, Modbus Support, and Edge Computing for Automation & Control Systems" brand: "arduino" price: "€ 252.76" currency: EUR in_stock: true reviews_count: 7 category: "Arduino" url: https://www.desertcart.it/products/578293205-opta-lite-afx00003-compact-industrial-iot-controller-with-digital-i store_origin: IT region: Italy --- # Modbus RTU & TCP for seamless industrial comms Compact 2.76x0.79x8.66 in footprint Digital I/O + Analog inputs + PWM outputs Opta Lite [AFX00003] - Compact Industrial IoT Controller with Digital I/O, Analog Inputs, Modbus Support, and Edge Computing for Automation & Control Systems **Brand:** arduino **Price:** € 252.76 **Availability:** ✅ In Stock ## Summary > ⚡ Compact IoT control that keeps your automation ahead of the curve! ## Quick Answers - **What is this?** Opta Lite [AFX00003] - Compact Industrial IoT Controller with Digital I/O, Analog Inputs, Modbus Support, and Edge Computing for Automation & Control Systems by arduino - **How much does it cost?** € 252.76 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/578293205-opta-lite-afx00003-compact-industrial-iot-controller-with-digital-i) ## Best For - arduino enthusiasts ## Why This Product - Trusted arduino brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile I/O Suite:** Digital, analog, and PWM outputs ready to handle diverse sensors and actuators. - • **Space-Savvy Powerhouse:** Fits tight industrial setups without compromise on performance. - • **Universal Connectivity:** Supports Modbus RTU & TCP to integrate effortlessly with existing automation networks. - • **Edge-Ready Intelligence:** Processes data locally for lightning-fast decisions and zero downtime. - • **Plug & Play Arduino Ecosystem:** Program with familiar Arduino IDE and tap into a vast developer community. ## Overview The Arduino Opta Lite is a compact industrial IoT controller designed for space-constrained environments, featuring comprehensive digital and analog I/O, Modbus RTU/TCP support for industry-standard communication, and edge computing capabilities for local data processing. Fully compatible with the Arduino IDE, it enables rapid prototyping and deployment of automation and control systems, making it a versatile choice for professionals seeking flexible, scalable industrial IoT solutions. ## Description desertcart.com: Arduino Opta Lite [AFX00003] - Compact Industrial IoT Controller with Digital I/O, Analog Inputs, Modbus Support, and Edge Computing for Automation & Control Systems : Electronics Review: Systemic problems with Opta connectivity - I purchased the Opta Lite with hopes it would be a solid / user friendly product that can be used for small projects and to help teach others who want to use it for basic PLC operation and programming to get beginners into automation. I was unfortunately severly disappointed. There are two IDEs that are used to operate the device from Arduino - Arduino IDE and Arduino PLC IDE. In order to get to where you can actually use the PLC for it's intended purpose by using the typical programming languages to build it's functions, you have to start by connecting to the PLC. This is a significant issue that I have yet to solve. The documentation leaves out important information for setting up communication and does not provide good troubleshooting steps to connect. Without thorough and complete documentation or customer support, this product doesn't do the bare minimum of bringing the customer to the basic setup of its logic. Perhaps this product was released too soon before working out bugs or before adequate documentation could be completed, but either way it was a complete waste of $150 and would serve better as a paperweight. When I tried to reach out to Arduino to get support, the only page that allowed contact info to be filled out would not actually allow me to click on the boxes or fill them out (I tried multiple browsers and even mobile). Support is clearly behind the curve for Arduino. I hope Arduino can solve its issues instead of continuing to market an unusable product. Review: Connection issues - Not good at all. Connection issues like everyone else. Do plenty of research before you purchase. It’s cheaper to but 24v plc clones and relays vs what you’ll spend trying to get this to work. ## Features - Compact and Powerful Industrial IoT Controller: The Arduino Opta Lite is a compact yet powerful industrial IoT controller, designed for space-constrained applications where performance and flexibility are critical. With a small footprint, it is ideal for deploying in tight spaces while providing ample I/O capacity to handle industrial automation, monitoring, and control systems. - Comprehensive I/O for Versatile Applications: The Opta Lite features digital I/O, analog inputs, and PWM outputs, enabling seamless integration with a variety of sensors, actuators, and external devices. It’s perfect for applications such as environmental monitoring, remote control, machinery automation, and smart building systems. - Modbus RTU & TCP Support for Industry Standard Protocols: The Opta Lite supports both Modbus RTU and Modbus TCP, widely used protocols for industrial communication. This makes it easy to integrate the Opta Lite into existing control systems, enabling it to communicate effectively with PLCs, industrial devices, and other automation equipment, ensuring compatibility in a range of automation environments. - Edge Computing Capabilities for Local Processing: With edge computing capabilities, the Opta Lite can process data locally without needing to rely on the cloud or a central server. This enables faster decision-making, reduces latency, and ensures continued operation even when connectivity to a remote system is lost, making it ideal for mission-critical applications in automation and control systems. - Arduino Ecosystem Integration for Easy Development: Like all Arduino boards, the Opta Lite is fully compatible with the Arduino IDE, allowing for easy programming and customization using familiar tools. Leverage the powerful Arduino ecosystem of libraries, resources, and community support to rapidly prototype and deploy industrial IoT solutions, making it an excellent choice for developers and engineers. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C7RHHGZD | | Best Sellers Rank | #2,588 in Single Board Computers (Computers & Accessories) | | Brand | Arduino | | Compatible Groove Diameter | 3.5 Millimeters | | Customer Reviews | 2.9 2.9 out of 5 stars (12) | | Exterior Finish | Zinc | | Global Trade Identification Number | 07630049203549 | | Grade Rating | [Grade 2] | | Head Type | Hex | | Item Dimensions | 2.76 x 0.79 x 8.66 inches | | Item Hardness | Grade 2 | | Item Weight | 200 Grams | | Manufacturer | Arduino S.r.l. | | Manufacturer Grade | Grade 2 | | Metal Type | Stainless Steel | | Model | AFX00003 | | Part Number | AFX00003 | | Screw Head Style | Industrial | | Set Screw Thread Type | Metric Coarse | | Size Name | M4 | | Thread Class | 3B | | Thread Size | M4 | | Thread Style | Right Hand | | Thread Type | Metric | | Unit Count | 1.0 Count | | Warranty Description | as described in the official web site | ## Product Details - **Brand:** Arduino - **Exterior Finish:** Zinc - **Head Style:** Industrial - **Manufacturer Grade:** Grade 2 - **Thread Size:** M4 ## Images ![Opta Lite [AFX00003] - Compact Industrial IoT Controller with Digital I/O, Analog Inputs, Modbus Support, and Edge Computing for Automation & Control Systems - Image 1](https://m.media-amazon.com/images/I/61lrXUUoIHL.jpg) ## Questions & Answers **Q: What is the main difference between Opta WiFi and Opta RS485?** A: Opta WiFi is for wireless IoT. Opta RS485 is for industrial networks using Modbus RTU. **Q: Can I program Opta using standard PLC languages?** A: Yes. Opta supports Arduino language and IEC 61131-3 PLC languages, including Ladder Diagram (LD) and Structured Text (ST). **Q: How do the Opta extension modules connect to the main units?** A: They connect directly to the main Opta units using an integrated bus system for a seamless, reliable connection without extra wiring. **Q: Is the Arduino Opta suitable for industrial environments?** A: Yes. It's built for durability and has certifications including cULus, ENEC, and CE. **Q: Can I use these products for home automation projects?** A: While designed for industrial use, its powerful features and flexible options could be applied to advanced home automation projects. ## Customer Reviews ### ⭐ Systemic problems with Opta connectivity *by K***R on July 30, 2025* I purchased the Opta Lite with hopes it would be a solid / user friendly product that can be used for small projects and to help teach others who want to use it for basic PLC operation and programming to get beginners into automation. I was unfortunately severly disappointed. There are two IDEs that are used to operate the device from Arduino - Arduino IDE and Arduino PLC IDE. In order to get to where you can actually use the PLC for it's intended purpose by using the typical programming languages to build it's functions, you have to start by connecting to the PLC. This is a significant issue that I have yet to solve. The documentation leaves out important information for setting up communication and does not provide good troubleshooting steps to connect. Without thorough and complete documentation or customer support, this product doesn't do the bare minimum of bringing the customer to the basic setup of its logic. Perhaps this product was released too soon before working out bugs or before adequate documentation could be completed, but either way it was a complete waste of $150 and would serve better as a paperweight. When I tried to reach out to Arduino to get support, the only page that allowed contact info to be filled out would not actually allow me to click on the boxes or fill them out (I tried multiple browsers and even mobile). Support is clearly behind the curve for Arduino. I hope Arduino can solve its issues instead of continuing to market an unusable product. ### ⭐ Connection issues *by F***O on April 19, 2026* Not good at all. Connection issues like everyone else. Do plenty of research before you purchase. It’s cheaper to but 24v plc clones and relays vs what you’ll spend trying to get this to work. ### ⭐ They missed the mark. *by C***Y on May 14, 2024* Nice little package. USB-C and Ethernet connectivity are promising for deployment, but.. the IDE: my god. If they were hoping to get industrial buy-in on this, they really missed the mark. Download Arduino IDE. Install tools for the Opta. Install Opta PLC IDE. Read instructions twice. Watch the software fail to compile/connect repeatedly. Read forums. Execute suggestions. Fail again. I should have a squeaky nose and a water spraying lapel flower after all the hoops I just jumped through trying to make any headway. Two computers. Three versions of their tools.. nada. This’ll be shelved. Maybe I’ll look into it again after a year or two, after they get this sorted, if they haven’t abandoned it. I really wanted this to work. Was looking for a sub-$200 micro plc that didn’t also require some stupid proprietary cable for programming since this is for a DIY home project. Good thing I’ve got some other PLCs laying around the office I guess I’ll use instead. I know they work and will continue to work without any BS. ## Frequently Bought Together - Arduino Opta Lite [AFX00003] - mxuteuk 3pcs Aluminum DIN Rails,4 Inches Long,35mm Wide,7.5mm High DIN Rail with RoHS for Hardware Components Mounting MXU-DIN-100 --- ## 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.it/products/578293205-opta-lite-afx00003-compact-industrial-iot-controller-with-digital-i](https://www.desertcart.it/products/578293205-opta-lite-afx00003-compact-industrial-iot-controller-with-digital-i) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-10*