Can your micro-PLC do this?
Explore what EQSP32 can do that others may not.
From built-in CAN-Bus communication and smart relay coil control to seamless Home Assistant integration and modular I/O expansion, the EQSP32 micro-PLC challenges everything you thought a compact controller could do.
This page brings together all the unique capabilities of EQSP32 through our “Can Your Micro-PLC Do This?” campaign—highlighting powerful features, real-world applications and the unmatched flexibility of the platform.
Expanding to your needs.
Control up to 166 IOs.
Stacking up to 15 ten-channel expansion modules, EQSP32 adds 150 additional IO points to its 16 built-in IOs, reaching a total of 166 IOs—a record for PLCs of this size and cost.
Each module seamlessly integrates into the system, adding 10 versatile terminals with both input and output functionality.
Plug-and-Play Expansion – Modules are automatically detected at power-on, functioning as native IOs without extra setup.
Effortless Scalability – Designed for industrial automation and monitoring, EQSP32 ensures seamless growth with minimal effort.
Read up to 30 PT100 sensors.
Stacking up to 15 dual-channel expansion modules, EQSP32 makes it easy and cost-effective to scale up to 30 precision PT100 temperature sensors.
The EQXPT02 RTD expansion module adds two PT100 sensor inputs per unit—easily snapped in via the side connector. No need for rewiring, external ADCs, or complex setup.
Supporting 2-wire, 3-wire, and 4-wire PT100 configurations, it provides the flexibility to match accuracy and cost requirements across various applications.
Perfect for thermal monitoring in industrial automation, HVAC systems, greenhouses, and process control environments—this modular architecture scales without added complexity.
Measure pH or Redox (ORP).
EQSP32 supports direct access to pH and Redox (ORP) monitoring by just snapping an expansion module, reducing cost and simplifying water treatment applications.
With the EQXPH01 pH/ORP interface, the EQSP32 micro-PLC becomes a complete chemical monitoring controller—ideal for pools, aquaponics, industrial wastewater systems and automated dosing setups.
Using a standard BNC connector, it connects directly to pH and ORP probes—no need for external signal conditioners. Sensor data are automatically updated to the main unit via EQSP32’s board-to-board communication bus.
Operate EQSP32 as a standalone controller, or integrate it with Home Assistant, Node-RED or cloud dashboards via MQTT, TCP, or Bluetooth for seamless monitoring and control.
This modular, plug-and-play approach makes EQSP32 ideal for scalable and reliable water quality control.
Read up to 90 K-type thermocouples.
Scale up to 90 thermocouples by extending the EQSP32 with up to 15 plug-and-play six-channel EQXTC modules.
Each EQXTC06 module provides six channels for K-type thermocouple sensors, with automatic detection during EQSP32 startup. Once powered on, all readings are sequentially updated and transferred to the main controller as local values.
Temperature signals are amplified and pre-processed directly on the module, converting to Celsius and filtering noise before transmission. This offloads the EQSP32’s CPU and ensures faster, cleaner data for your application.
Ideal for industrial ovens, kilns, fermentation chambers and temperature-critical processes where high channel count and real-time accuracy are essential.
Connectivity and IoT solutions.
Built-in CAN-Bus communication.
Not all micro-PLCs can speak CAN-bus—In fact, none does. The EQSP32 is the only PLC in its class and price range with a built-in CAN interface, seamlessly integrating with your motor controllers, battery management systems (BMS), HMIs, industrial sensors and more.
This ensures real-time, reliable communication without external converters or additional hardware, making EQSP32 the ideal choice for industrial automation, smart energy systems, and mobile robotics.
Wirelessly monitor PLC I/O states.
Monitor EQSP32 I/O states in real-time from your phone. The EQConnect mobile app wirelessly delivers key system data via Bluetooth—no need to put your head in the cabinet.
With a simple Bluetooth link, you can instantly visualize digital and analog inputs and outputs from your smartphone, along with live supply voltage readings. Ideal for field diagnostics, setup checks and fast commissioning—without needing a laptop or opening your panel.
Whether you’re on the factory floor or up a ladder, EQSP32 keeps your process visible and accessible, wirelessly.
Arduino Cloud compatibility.
EQSP32 can seamlessly connect to Arduino Cloud, enabling real-time control, monitoring and data logging from anywhere—all from a custom, no-code, drag-and-drop web and smartphone UI.
Build dashboards to control your system remotely, track sensor values, or automate actions. Just pair the EQSP32 with your Arduino Cloud account and map inputs, outputs and internal variables instantly.
Perfect for small-scale SCADA, commercial automation systems or off-site process monitoring, EQSP32 brings cloud connectivity to your automation projects with zero friction.
Home Assistant integration.
EQSP32 natively supports MQTT and Home Assistant device discovery, making automation setup fast and hassle-free.
With automatic device discovery, EQSP32 publishes all control and monitoring entities as a unified device to Home Assistant. No custom configuration or manual topic mapping required.
It functions as a fully standalone controller while seamlessly integrating with Home Assistant for both local and remote control. Users can monitor live data, adjust parameters and also create additional custom automations directly from the Home Assistant interface.
This integration brings industrial-grade automation to a widely adopted smart home ecosystem—bridging professional control systems and user-friendly automation platforms.
Node-RED integration.
Use EQSP32’s predefined MQTT topic structure to build Node-RED automation flows in minutes—no complex setup needed.
EQSP32 automatically creates and publishes all control and monitoring topics over MQTT. Simply subscribe to the ones you need and start visualizing data or triggering actions in Node-RED—no coding required.
With the EQConnect smartphone utility, configuring network parameters on-site becomes quick and intuitive. Combined with EQSP32’s consistent topic format, this makes integrating industrial hardware into low-code workflows effortless—perfect for smart factories, remote monitoring, and scalable IIoT systems.
Send emails and live reports.
As an open micro-PLC, the EQSP32 has access to all internet services and can be programmed to send live reports and alerts via email.
Use the built-in connectivity to trigger automated messages based on your own criteria—whether it’s process data, performance summaries or early warnings.
Schedule daily reports, push alerts during specific events or log data remotely—all running directly on the EQSP32 using familiar APIs and standard protocols.
Other connectivity features include:
• Hosting web dashboards
• Performing over-the-air (OTA) firmware updates
• Syncing time via NTP servers (with daylight savings support)
• Seamless integration with MQTT, REST APIs and cloud services
Smart and fast development.
EQ-AI assistant for code generation.
Just describe your logic and EQ-AI assistant generates the automation code—making PLC programming easier than ever.
PLC programming often comes with a steep learning curve. Add IoT functionality and it now gets even more challenging, even for experienced engineers. EQ-AI simplifies the process by allowing users to describe automation logic in plain human language and instantly generate functional code.
It can assist with feature exploration, code optimization, debugging, and refining automation strategies. Whether you need development guidance or want to convert a hand-drawn ladder diagram into working code, EQ-AI is up for the task—making automation more intuitive and efficient.
Free programming tools.
Program your EQSP32 micro-PLC using free, widely supported development tools—no costly proprietary software or monthly fees.
Built on the popular ESP32S3 processor, EQSP32 benefits from a vast global community, offering extensive support, shared libraries and resources to accelerate automation projects.
Seamless integration with third-party solutions, industrial protocols and cloud services ensures unmatched flexibility and scalability for your applications.
Build custom dashboards in minutes.
Build an end-to-end IoT solution with a custom UI in minutes using Dashio, Home Assistant, Arduino Cloud, Blynk or Node-RED.
EQSP32 natively integrates with leading IoT platforms, enabling you to create intuitive dashboards, monitor live data, and control industrial processes—all without complex coding. Whether you’re building for real-time automation, cloud-based remote control, or a local touchscreen interface, EQSP32 makes it effortless.
Creating a market-ready system has never been easier. With this approach, development cycles shrink from months to days.
Open to custom and third-party solutions.
With open-source tools, developer templates and seamless third-party integration, EQSP32 gives you full control over your automation.
It offers a high-level API for rapid development, along with hardware-level access for advanced customization. Whether you’re leveraging native EQSP32 features, integrating third-party libraries like Modbus, or implementing fully custom solutions, EQSP32 adapts to your workflow.
Connect effortlessly to IoT platforms such as DashIO, Arduino Cloud, Blynk, Home Assistant and Node-RED for fast, low-code deployment.
From protocol integration to custom UI design, EQSP32 keeps your options open.
We are here when you need us.
Our moto is simple: “If you’re stuck for more than 15 minutes, ask for help—and we’ll come to your rescue.”
Other vendors might leave you hanging or let chatbots deal with customer issues. At Erqos, support means being part of the team and doesn’t stop at documentation.
Our team of real engineers is available to provide you with expert advice, system insights and hands-on development help.
When working with the EQSP32, you get direct access to professionals who understand automation and know the EQSP32 hardware and software inside-out.
Whether you’re solving a complex control issue or just need quick feedback, we’re here to help you succeed.
Connect to anything with EQVersal® I/Os.
Multipurpose inputs and outputs.
Unlike traditional PLCs, EQSP32’s outputs can also function as inputs—optimizing I/O usage and simplifying your wiring and system design.
With software-selectable I/O modes, each terminal can act as a digital input, analog input or power controlled output.
EQSP32 also features a smart coil activation method using PWM control for efficient relay and solenoid valve operation. It delivers the necessary switching power, then maintains a low-duty holding current—reducing energy consumption, heat and power supply strain in high-density applications.
Driving multiple industrial relays.
Unlike standard controllers, EQSP32 intelligently manages relay coil and solenoid valve power—providing the initial activation surge before reducing to a stable holding current.
This lets you drive up to 16 relays simultaneously without overloading your power supply.
With its efficient coil actuation, EQSP32 excels in industrial automation, HVAC & climate control, building management systems and smart agriculture & irrigation, where large-scale relay control is essential.
Drive addressable RGB LEDs.
EQSP32’s unique high speed output mode can control addressable LEDs—perfect for display panels and lighting systems.
From animated status displays and machine alerts to full-color dashboards and signage, EQSP32 makes it easy to add visual intelligence to your automation system.
No need for external drivers or pixel controllers—just connect your WS2812, SK6812, or other addressable LED strips directly to the EQSP32 and program your patterns using familiar logic.
Great for smart factories, process feedback and even creative industrial UI solutions.
Ultra high-density I/Os.
EQSP32 packs 16 multifunction I/Os into just 72mm (4 DIN modules). That’s more than any micro-PLC in its size class.
Each terminal supports digital input, analog input or output functionality—fully configurable in software. This high-density design simplifies panel layout and reduces costs without sacrificing flexibility.
Whether you’re automating industrial machinery, commercial systems, building management or prototyping compact automation solutions, EQSP32 delivers the most compact control platform in the market.
