CE marking control panel: the integrator's guide Jul 6, 2026 From Prototype to Plant CE marking for control panels and machines: the integrator's guide There's a misunderstanding about CE marking that we see repeated among integrators with twenty years of experience: "every component ... Read more
Open source PLC: 5 real case studies in industry Jul 6, 2026 From Prototype to Plant Open source PLC: 5 case studies of machines that run on it There's a question every engineer asks before their first project with an open source PLC: "does anyone actually use this for real work?" It'... Read more
Node-RED vs CODESYS vs Arduino IDE: which to pick Jul 6, 2026 From Prototype to Plant Node-RED vs CODESYS vs Arduino IDE: the honest ranking for programming your PLC There are three main ways to program an open source industrial PLC, and the question "which one is best?" reaches our te... Read more
8 Signs Your Prototype Isn't Production Ready Jul 6, 2026 From Prototype to Plant 8 signs your prototype doesn't have industrial reliability (the full audit) Your prototype works. That doesn't mean it will hold up on the plant floor. We're writing it this bluntly because it's the m... Read more
How to use SQLite with ESP32 PLC Jun 23, 2026 Arduino Industrial SQLite runs directly on any Industrial Shields ESP32 PLC equipped with an SD card, giving you a full relational database without a server. This guide shows how to create the schema on your PC, load it... Read more
ESP32 PLC WiFi, Bluetooth and BLE guide Jun 19, 2026 Arduino Industrial The Industrial Shields ESP32 PLC includes Wi-Fi 802.11 b/g/n and dual-mode Bluetooth 4.2 (Classic BR/EDR and BLE) built directly into the ESP32 chip. No additional wireless modules are required. This ... ESP32 arduino Read more
MQTT on M-Duino with OpenPLC Jun 19, 2026 Arduino Industrial In this post, we will configure an M-Duino as an MQTT slave and a computer as the master. First, we will configure the M-Duino to send the value of I0.0 to the master; then we will see how to configur... Read more
Comparison between SARA-R412M and SARA-R422M8S Jun 19, 2026 Arduino Industrial Technical specifications of R412M and R422M82 Product description The SARA-R4 series cellular communication modules are products of the u-blox company, which offer solutions for IoT (Internet of Thing... Read more
RS-485 with Arduino and ESP32 based PLCs Jun 19, 2026 Arduino Industrial Introduction In this tutorial, we will guide you through the process of configuring and utilizing RS-485 communication with Industrial Shields' Arduino and ESP32-based PLCs. RS-485 is a robust and wid... Read more
Modbus TCP with Arduino and ESP32 based PLCs Jun 19, 2026 Arduino Industrial Introduction Modbus TCP is a robust and widely used protocol for communication over Ethernet in industrial automation systems. It allows seamless integration between devices, providing reliable data e... Read more
RS-485 with Raspberry PLC Jun 19, 2026 Arduino Industrial Introduction RS-485 is a robust and versatile standard for industrial communication, enabling long-distance data transfer with high resistance to electrical noise. It is widely used in automation syst... Read more
RS-232 with Arduino and ESP32 based PLCs Jun 19, 2026 Arduino Industrial Introduction RS-232 is a widely used communication protocol for serial data exchange between devices, offering simplicity and reliability in industrial applications. Industrial Shields PLC families, i... Read more