Controlling ESP32 PLC digital outputs with Arduino Cloud Jun 15, 2026 Arduino Industrial This article is the second in a series on using the Industrial Shields ESP32 PLC with Arduino Cloud. It shows how to add a cloud variable, configure the network, upload the sketch, and build a dashboa... Read more
Detecting RFID tags with the RC522 reader and M-Duino PLC Jun 15, 2026 Arduino Industrial RFID (Radio Frequency Identification) technology enables automatic identification of objects and people via tags that transmit a unique UID when brought near a reader. This article shows how to connec... MDuino Open-Source SPI Read more
Store data and display it on Node-RED Dashboard with Raspberry PLC Jun 15, 2026 Raspberry Pi for Industry This article shows how to log sensor data to a file on the Raspberry PLC with Node-RED and the flogger node, then read that file and display the data as a chart in the Node-RED Dashboard. This two-ste... Data Storage Node-Red RaspberryPLC Read more
Reading the IE5345 inductive proximity sensor with M-Duino PLC Jun 15, 2026 Arduino Industrial The IE5345 is an IFM inductive proximity sensor that detects metallic objects at a range of 5 mm and outputs a digital signal. Because inductive sensors respond only to metal, they work reliably in we... MDuino Sensor Read more
Publishing DS18B20 temperature data from M-Duino PLC via MQTT Jun 15, 2026 Arduino Industrial This is part 1 of a series showing how to build a data pipeline from an Industrial Shields M-Duino PLC to a Google spreadsheet using MQTT and Node-RED. In this first part, the M-Duino reads the temper... DS18B20 MDuino MQTT Read more
Obtaining data from Google spreadsheets using Node-RED Jun 15, 2026 Raspberry Pi for Industry This is part 3 of a 3-part series. Part 1 covers reading temperature data via MQTT, and part 2 covers writing it to a Google Sheet. In this part, you’ll read the stored data using the GSheet node, tra... Dashboard Data Storage Node-Red Raspberry Read more
How to test the I2C communication protocol with Raspberry PLC Jun 15, 2026 Raspberry Pi for Industry The I2C bus is available on all Raspberry PLC models and is compatible with a wide range of sensors and peripheral integrated circuits. Before using a connected I2C device, you need to know its addres... automation Communication I2C I2CSCA I2CScanner OpenSource RaspberryPLC Read more
Connecting multiple SPI slaves to an M-Duino PLC Jun 15, 2026 Arduino Industrial SPI (Serial Peripheral Interface) is a synchronous serial communication protocol commonly used to connect a master device to one or more peripherals. Compared to I2C, SPI is faster and simpler: instea... MDuino Open-Source Slave SPI Read more
Controlling addressable LED strips with M-Duino and ESP32 PLC Jun 15, 2026 Arduino Industrial Addressable LED strips such as the WS2812B use a single data wire to control each LED individually in colour and brightness. This article shows how to connect a WS2812B strip to an M-Duino or ESP32 PL... Read more
Controlling a stepper motor with an ESP32 PLC Jun 15, 2026 Arduino Industrial In this post we will see how to control a stepper motor using an ESP32 PLC. We will cover the basics of stepper motors, their features, and how they work in combination with a driver controlled by the... Read more
Lora communication between two Raspberry Pi PLCs Jun 15, 2026 Raspberry Pi for Industry El Raspberry PLC supports optional click modules for specialised communications. This article shows how to set up LoRa radio communication between two Raspberry PLCs using the RN2483A module. LoRa (Lo... Read more
How to check the Raspberry PLC outputs Jun 15, 2026 Raspberry Pi for Industry To verify that the outputs of your Raspberry PLC are working correctly, the recommended approach is to run a C++ test program that toggles all digital, analogue, and relay outputs every second. If the... Read more