Dev Tech Tutorials by Lehi Alcantara

Lab 5 – IT 515R – IoT Systems Engineering Lab 5 IoT Security Online Link This lab is available as part of my online portfolio at: https://www.lehi.dev   Objective The purpose of this lab is to learn how to use a relay to control your garage door Opener. Establish complex conditions by an additional sensor, these principles include: Enumerate requirements from use case and user stories. Become more familiar with representing the desired system by using flowcharts, state diagrams, etc. Learn to plan what materials will be necessary to accomplish the system’s purpose Build Iot sensors by utilizing GPIO pins for inputs. Understand how relay works IoT security design architecture   Materials Personal Computer 1 x Wemos D1 Mini microcontrollers (ESP8266) 1 x 2.5A USB Power Supply with micro USB Cable 1 x breadboard 1 x Relay sensor 1 x raspberry pi with SD micro sd card and charger Arduino IDE Fritzing Jump wires Soldering iron Solder GPIO

Lab 6 – IT 515R – IoT Systems Engineering Lab 6 IoT User Interface – Garage Door Online Link This lab is available as part of my online portfolio at: https://www.lehi.dev   Objective The purpose of this lab is to learn how to use a relay to control your garage door Opener. Establish complex conditions by an additional sensor, these principles include: Implement Restful API to facilitate data transfer from sensors Develop a full feature UI interface displaying data states from sensors Implement a non user interface to open the garage door Enumerate requirements from use case and user stories. Become more familiar with representing the desired system by using flowcharts, state diagrams, etc. Learn to plan what materials will be necessary to accomplish the system’s purpose   Materials Personal Computer 2 x Wemos D1 Mini microcontrollers (ESP8266) 2 x 2.5A USB Power Supply with micro USB Cable 1 x raspberry pi with SD micro sd card and charger

Project – IT 515R – IoT Systems Engineering Project IoT Project – Temperature Sensors Online Link This project is available as part of my online portfolio at: https://www.lehi.dev   Problem/Issue & Proposed Solution Many times in my house I have a perfect/desired temperature on the main floor which happens to have the thermostat controller, but on a specified room It is always warmer beyond comfortable level. For the solution for this problem I have designed a system where I monitor each level: basement, main, upstairs. Create a website graph to see high level where each level temperature is at as well as created a slack bit and channel to let me know each level temperature as well as send commands to turn the fan on or off. Every hour it sends data for all 3 levels. If the upstairs passes a threshold then turn on the fan if it gets below a threshold then turn off the fan.The purpose of this project is to learn how to use IoT devices to solve a problem