Proof of Concept Development for Affordable Agriculture IoT Device

I'm in need of a skilled professional to help me create a proof of concept for a cost-effective IoT device aimed at the agricultural sector. This device should primarily be capable of collecting weather data. Objective: The basic version of the Khetease IoT product is designed to help small-scale farmers monitor key soil conditions—such as moisture, temperature, and humidity—in a portable, affordable device. The device is compact, lightweight, and can be used across multiple fields without permanent installation. It will connect to the farmer's smartphone via Bluetooth for real-time data transfer. Steps for Developing the PoC: Objective of PoC: Demonstrate the ability to measure soil moisture, temperature, and humidity using sensors. Send the data to a mobile app via Bluetooth. Validate the basic functionalities in a portable format, ensuring low power consumption and portability. Components for PoC: Microcontroller: Use an ESP32 or Arduino Nano, which supports Bluetooth. Sensors: Soil Moisture Sensor Temperature & Humidity Sensor (e.g., DHT11 or DHT22) Bluetooth Module: If using an Arduino, add an external Bluetooth module (e.g., HC-05), but with ESP32, Bluetooth is already integrated. Power Supply: Small rechargeable battery (like a 3.7V Li-ion battery) to power the system. Basic App: A simple app to receive and display data via Bluetooth (you can use an existing Bluetooth serial app for initial testing). Process: Connect the sensors to the microcontroller. Write basic firmware for the microcontroller to: Read sensor data. Transmit the data via Bluetooth. Test the connection between the microcontroller and your phone via Bluetooth using a simple app or terminal. Prototype enclosure: Build a simple case or enclosure for the components to simulate the portable nature of the device. Expected Outcome: Successfully collect soil and environmental data (moisture, temperature, humidity). Transmit the data to a mobile phone via Bluetooth. Validate battery life and the device’s portability. Evaluation: Analyze sensor accuracy, data transmission speed, and power consumption. Test how easy it is for farmers to operate (e.g., soil probe insertion, button press, app pairing).