You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
4.1 KiB
Markdown
80 lines
4.1 KiB
Markdown
# DESCRIPTION
|
|
This repository contains the **pool_kit_modified.ino** file, which was generated by modifying the
|
|
**source_code.ino** file from the **Original_Code_Pool_Kit** repository. The purpose of these changes was
|
|
mainly to add different sensors to the Wi-Fi Pool Kit and changing the format the data is shown in the Arduino
|
|
Serial Monitor, specifically so that the text printed is only the numeric data of the parameters that are being
|
|
measured, but these printed numeric data to be separated by commas so that it turns out easy for the user to copy
|
|
the printed information into a .CSV file, since this is the most common format used for data analysis with the Python
|
|
language tools we work with.
|
|
|
|
## I2C address and device list
|
|
|
|
|
|
|
|
|
|
|
|
In the code lines 21 to 25, we have added instructions for the conductivity and dissolved oxygen circuits, including
|
|
also the I2C addresses corresponding to each one of them. In this case, we have removed the instruction for the pH
|
|
circuit since this parameter at the end was not considered as representative in the specific application that was being
|
|
developed.
|
|
|
|
In the code lines 27 to 33, the names of the conductivity and dissolved oxygen circuits are added to the _device list_
|
|
so that we can refer to them using their corresponding names.
|
|
|
|
## Enable pins in the microcontroller
|
|
|
|
|
|
|
|
|
|
|
|
In the line 41 of the code, we need to set the pin number needed for our dissolved oxygen circuit, corresponding
|
|
with the connection this circuit will have with the ESP32 microcontroller.
|
|
|
|
In the **setup** function, we also need to set up the **pinMode** for the added circuits, specifically if they need
|
|
to have a **LOW** or **HIGH** digital value in the corresponding circuit.
|
|
|
|
The next image shows the connection for the circuits on the Atlas Scientific board.
|
|
|
|
|
|
|
|
According with the image, from left to right, we have the yellow circuit for dissolved oxygen, then the blue circuit
|
|
for ORP, the black circuit for temperature, and the green one goes for conductivity. Therefore, if it is neccessary
|
|
replace a circuit for a different one, it is always important to remember that the first space on the board from left to
|
|
right it is connected to pin 12 in the ESP32, the second space goes to pin 27, the third one has connection with pin 15,
|
|
and the last one goes to pin 33. It means that no matter what circuit you are using on the Atlas Scientific board, you
|
|
only need to specify on the code the correct pin for the connection with the ESP32 microcontroller.
|
|
|
|
## step3 function
|
|
|
|
|
|
|
|
In the lines 200 to 206 from the **pool_kit_modified.ino** file, we modified this function by adding the next
|
|
instructions:
|
|
|
|
**DO.send_read_cmd();**
|
|
**EC.send_read_cmd();**
|
|
|
|
These pair of instructions are commands defined in the libraries from Atlas Scientific imported to the Arduino IDE.
|
|
In this part, as we are adding different sensors and circuits to our kit, we use these instructions to extract the
|
|
readings of the measurements in the sensors, so that we can process those signals and show in the _Serial Monitor_
|
|
the corresponding numeric data.
|
|
|
|
In this case for this function, we have removed the command for the pH variable since this parameters was not going
|
|
to be used for data analysis.
|
|
|
|
## Printing in the Serial Monitor
|
|
|
|
|
|
|
|
|
|
|
|
The last changes in the original source code were made in the **step4** function.
|
|
|
|
All the data showed in the Serial Monitor consists on rows, and each of them has 4 numeric data in the next
|
|
order: temperature, dissolved oxygen, ORP and conductivity. The changes made for this **step4** function allow
|
|
the user to print these 4 data one next to the other and separated by commas. This printing format was not available
|
|
in the original source code downloaded from the Atlas Scientific website, but the changes are very useful, since the
|
|
format now we have for the results in the Serial Monitor let us only copy the results printed into a .CSV file.
|
|
And as we mentioned at the beginning, the .CSV file format makes it easier to import the data into a Python
|
|
environment.
|