Why factories turn electronics into pumpkins: protecting industrial controllers from EMI

This Habr article explores the critical issue of electronics reliability in industrial environments. The author analyzes why microcontrollers that pass laboratory tests often fail when installed on production floors. The root cause lies in electromagnetic interference (EMI) generated by heavy equipment, such as welding machines. The material explains the nature of these 'electromagnetic storms' and provides recommendations for protecting computing hardware from external disturbances. The author emphasizes the importance of proper circuit design and shielding to prevent accidents and failures in automated production lines. This article is useful for design engineers and industrial automation specialists facing equipment stability issues in harsh electromagnetic environments.