INTRODUCTION:

A data logger is an electronic device that records data over time, typically at regular intervals, allowing for the monitoring and analysis of various parameters such as temperature, humidity, pressure, voltage, and more.

OBJECTIVE:

  1. Data Collection: To collect and record data over time, allowing for analysis and insights.
  2. Monitoring: To continuously monitor parameters such as temperature, humidity, pressure, and more.
  3. Trend Analysis: To identify patterns and trends in the data, enabling predictive maintenance and optimization.
  4. Quality Control: To ensure compliance with regulations and standards by tracking environmental conditions.
  5. Troubleshooting: To diagnose issues and identify root causes by analyzing historical data.
  6. Optimization: To optimize processes, systems, and operations based on data-driven insights.
  7. Research and Development: To collect data for research purposes, testing hypotheses, and validating results.
  8. Compliance: To meet regulatory requirements and industry standards by maintaining accurate records.

COMPONENTS OF DATA LOGGER:

  1. ESP32 development shield
  2. ESP32 development board
  3. AHT2415C temperature and humidity sensor
  4. Jumper wires for extension
  5. Cable gland
  6. Power jack
  7. Junction box
  8. 5V / 1A DC adapter

12/04/2025

Under the guidance of Tejaswini, we learned how to connect the various components of a data logger. She walked us through the step-by-step process of linking the sensors, cables, and other equipment to ensure accurate data collection. Following her instructions, we successfully set up five data loggers, carefully connecting each component according to the procedure.

Procedure:

  1. Plug the ESP32 development board on ESP32 development sheild.
  2. Connect VCC wire of sensor to 3v3 pin of ESP32 development shield.
  3. Connect GND wire of sensor to GND pin of development shield.
  4. Connect SCL wire with D22.
  5. Connect SDA wire with D21.
  6. Connect wires to power jack by soldering.
  7. Connect power jack wires to ESP32 development shield.

13/04/2025

I thoroughly checked the connections of the old data logger to ensure everything was properly set up. I carefully examined the cables, sensors, and other components, verifying that each connection was secure and correctly linked.