CE432 2022 Fall
Lab 5
Name: Braden Morrow Email: bdmorrow@fortlewis.edu
1. Lab 5 - ESP32 & The Strain Gauge
2. Introduction The purpose of this tutorial was to use a regular ESP32 Board to read a strain gauge sensor and output the weight in kg
3. Results Task 1: This task asked us to usesome
example code and examples to build a wheatstone half bridge and recieve
measurements from the strain gauge using the ESP32 board. Figure 1
shows the wiring and an example video of measuring weights with the
strain gauge and an ESP32. The code for this task can be found in
Tutorial4 -> Task 1. The code used for calibration is in
Tutorial4 -> calibration.
Figure 1. Results from ESP32 and Strain Gauge Weight Measurements
5. Discussion This
was a good lesson in the effetiveness of wheatstone bridges in
measuring minute resistance changes. It was also a good chance to work
with a slightly alrered version of the ESP32 we've been using with the
ESP32 cam. Unfortunately I was unable to accomplish Task 2 due to time
constraints.
