Arduino BlogArduino Team2 min readintermediate
Digitize analog gauge readings with edge AI
Summary
An edge AI solution uses an Arduino UNO Q and a USB webcam to digitize analog gauge readings without modifying existing industrial equipment. This approach avoids downtime and risks associated with physical alterations, offering a cost-effective way to modernize monitoring.
- Digitizing analog gauges without equipment modification is a key industrial challenge due to serviceability risks.
- An Arduino UNO Q running MobileNetV3-Small via ONNX Runtime can read analog gauges using a standard USB webcam.
- This edge AI approach avoids physical alterations to legacy equipment, reducing downtime and approval hurdles.
- Training data was generated by photographing a physical gauge and using GPT-5.6 to classify needle positions.
This method is valuable for engineers in industrial settings looking to integrate legacy equipment into modern monitoring systems without costly or risky physical modifications.
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