Episode 3 — One digital input, many meanings: a production counter on an ESP32 PLC Jul 28, 2026 From Prompt to Plant From Prompt to Plant is the series where we share, openly and in full, the prompts that let you program an Industrial Shields PLC with Claude Code. The AI writes the code; you validate it on a test be... Read more
Retrofit a Legacy PLC for IIoT with ESP32 PLC or GateBerry Jul 23, 2026 Arduino & Raspberry Pi Industrial News, Industry 4.0, IoT Can you retrofit a legacy PLC for IIoT without touching its logic? Yes. Reading the signals that are already there, instead of reprogramming the controller that produces them. That distinction is the ... Read more
PLC-to-phone alerts and the Purdue Model: when is it OK to skip the SCADA? Jul 23, 2026 From Prompt to Plant From Prompt to Plant is the series where we share, openly and in full, the prompts that let you program an Industrial Shields PLC with Claude Code. This article answers the best question episode 1 rec... Read more
Episode 1 — Pump failure alerts on your phone via Telegram with an ESP32 PLC Jul 21, 2026 From Prompt to Plant From Prompt to Plant is the series where we share, openly and in full, the prompts that let you program an Industrial Shields PLC with Claude Code. The AI writes the code; you validate it on a test be... Read more
Industrial Shields at Automation Expo 2026 | Visit us in Mumbai Jul 21, 2026 Arduino & Raspberry Pi Industrial News, Industry 4.0, IoT Industrial Shields will be at Automation Expo 2026 in Mumbai from 22 to 25 July , together with our Indian distribution partner Visha World . Find us at Hall 6, Stand O-26 , at the Nesco exhibition ce... Read more
Can AI really program PLCs? What LLMs change in industrial automation, and what they don't Jul 10, 2026 Arduino & Raspberry Pi Industrial News, Industry 4.0, IoT There is a lot of noise around artificial intelligence replacing engineers, rewriting industries and making entire skill sets obsolete overnight. Industrial automation tells a different story. Can Cha... Read more
Arduino PLC vs ESP32 PLC vs Raspberry Pi PLC: Which to Choose Jul 6, 2026 From Prototype to Plant Arduino PLC vs ESP32 PLC vs Raspberry Pi PLC: Which to Choose Choosing between an Arduino-based PLC, an ESP32 PLC, and a Raspberry Pi PLC looks simple. Three families, three datasheets, one decision. ... Read more
RS485 Problems: Step-by-Step Bus Fault Diagnosis Jul 6, 2026 From Prototype to Plant RS-485 Diagnostic Checklist: How to Find the Intermittent Fault on Your Modbus RTU Bus A few months ago an integrator wrote to us on the verge of losing his best customer. His installation — a PLC pol... Read more
PLC Wiring Mistakes: The 10 That Destroy Your Panel Jul 6, 2026 From Prototype to Plant PLC Wiring Mistakes: The 10 That Destroy Your Panel A panel working on the test bench doesn't mean it's wired correctly. We see it constantly in technical support: the integrator tests everything in t... Read more
Arduino Industrial Components: 7 You Should Never Install Jul 6, 2026 From Prototype to Plant 7 'Maker' Components You Should Never Install on the Plant Floor (and Their Industrial Equivalent) The maker ecosystem is the best automation school there's ever been. We say that with full knowledge ... Read more
Modbus RTU vs Modbus TCP vs OPC UA: Which to Use Jul 6, 2026 From Prototype to Plant Modbus RTU vs Modbus TCP vs OPC UA: Which to Use The protocol you choose today will stay with the installation for its entire service life. Ten, fifteen years. And yet it's usually decided in five min... Read more
From prototype to industrial production: 12 steps Jul 6, 2026 From Prototype to Plant From prototype to industrial production: the 12-step checklist "The prototype already works. Now what?" It's the question I've been asked most often since we founded Industrial Shields in 2012. And th... Read more