Industrial IoT Machine Monitoring System

I need concise, reliable firmware written in Embedded C/C++ for an ESP32 that will act as the on-machine HMI. The board already has a TFT display, keypad, Wi-Fi, and the usual sensor inputs routed; your... (Budget: ₹1500 - ₹12500 INR, Jobs: C Programming, Documentation, Electronics, Embedded Systems, Firmware Development, Internet of Things (IoT), Microcontroller, MQTT, Sensor Fusion, Sensor Integration)