Online Summer Student Program at CERN Research Internship Report: Environmental Expander (EnviE)

The goal of this internship is to write a code using Lua programming language that measures the signals from both the humidity and the temperature sensors. The environmental board, which is based on ESP8266, is equipped with platinum thin film Resistance Temperature Detector (RTD) and a Honeywell HIH-4021-003 calibrated and filtered sensor. To measure the signals, the analog-to-digital (ADC) response is converted using a voltage-temperature relationship. The code is broken into three main parts: connecting the device to Wi-Fi, converting ADC values, and creating a website to display the results. Due to time restrictions and the remote setting of the internship, only the solver that does the calculations for converting ADC responses was written.