The goal of this project was to learn how to interface with an ESP8266
wifi module, understand communication protocals, prototype a commercial
product, and use the ssd1305 and DS18B20.
Tasks:
Task 1.1 Displaying sample code.
Task 1.2 Printing temperature data to serial monitor.
Task 1.3 Displaying temperature data on OLED.
Task 2. LED blinking with interrupt
Task 3. Master-Slave connection implemented with ESP8266 sending temperature data to thingspeak
Task 4. Schematic design of IOT temperature sensor. Surface mount ATMegas were used.
Unrouted Layout
Final PCB, DRC clean.
Discussion:
This project taught many valuable skills. Communication protocals was
very good to know, it allowed me to understand wiring connections and
more about the devices we are using.
For the PCB, the barebones microcontroller I was excited to learn how
to impliment. This opens many doors for creating practical applications
that can be used without a dedicted arduino.
Sending data to ThingSpeak is valuable for learning how to make use of data remotely.
Unfortunatly, I was unable to impliment the AP and password change
using pushbuttons. The interrupt implimentation was not ideal for user
input as it halts the program for too long. For future testing I would
create a function that would be called in the main loop instead.
Overall this project shored up knowlege I missed in Junior Design and taught practical design skills.
