The Problem
Company needed affordable, customizable display interfaces for IoT sensor networks. Commercial HMI panels were expensive and inflexible for our specific monitoring needs.
Technical Approach
Built complete solution using:
- Waveshare 7” capacitive touchscreen with ESP32-S3
- LVGL graphics library for responsive UI
- MQTT protocol for real-time sensor data
- Custom 3D-printed enclosure optimized for panel mounting
- Industrial-grade design with IP54 rating
Results
- 93% cost reduction compared to commercial alternatives
- Less than 100ms response time for touch interactions
- 99.9% uptime over 3-month deployment
- Scalable design adopted for multiple production lines