When an Arduino PLC is the right choice for industrial automation Nov 12, 2026 An Arduino PLC is the right choice when the job is deterministic I/O control with standard industrial protocols: read sensors, drive valves and motors, talk Modbus, and do it the same way every cycle.... Read more
ESP32 PLC on the plant floor: when Wi-Fi, LoRa or 4G is the right link Nov 9, 2026 An ESP32 PLC is the right controller when the job needs a network more than it needs a big CPU: machines that must send data, remote sites without cable, or equipment a phone should control. The real ... Read more
Arduino CLI for Arduino PLC: compile and upload on Windows and Linux Oct 27, 2026 Arduino CLI is the official command line tool of Arduino. With it you can program an Arduino PLC (M-Duino Arduino PLC or Ardbox Arduino PLC) without opening the IDE: add the Industrial Shields boards ... ArduinoPLC Linux Uploading Windows Read more
Ardbox Q, the first industrial PLC with Arduino UNO Q: how it works and where it fits Oct 26, 2026 In many installations, control and data still live in separate devices. A PLC runs the process. Next to it, a small PC or gateway collects the data, shows it on a screen and sends it to other systems.... Read more
Send commands from a database to a PLC and move pneumatic actuators Oct 21, 2026 To send commands from a database to a PLC, you store each command as a row with an id and a status, you move new rows to the PLC through a small service (MQTT, Modbus TCP or a web API), and your PLC w... Read more
How to choose between M-Duino and Ardbox for industrial retrofitting Sep 1, 2026 Retrofitting a legacy machine with an Arduino PLC usually comes down to one practical question: does the application need onboard Ethernet and a higher I/O count, or does it need to switch loads direc... Read more
How to use SQLite with ESP32 PLC Jun 23, 2026 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 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 ... arduino ESP32 Read more
MQTT on M-Duino with OpenPLC Jun 19, 2026 In this post, we will configure an M-Duino Arduino PLC as an MQTT slave and a computer as the master. First, we will configure the M-Duino Arduino PLC to send the value of I0.0 to the master; then we ... Read more
Comparison between SARA-R412MÂ and SARA-R422M8S Jun 19, 2026 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 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
RS-485 with Raspberry PLC Jun 19, 2026 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