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Electronic Technologies and Biosensors Laboratory

Academic Year 2020/2021 - I Semester

Assignment 04

This repository contains the PSoC Creator workspace to be used as a starting point for the successfull submission of the Assignment 04 of the course "Electronic Technologies and Biosensors Laboratory" of the I Semester of the academic year 2020/2021.

Objective

In this assignment you are required to create a project using PSoC Creator and the CY8CKIT-059 KIT along with the following components:

  • 1 photoresistor and 1 10kOhm resistor
  • 1 potentiometer
  • 1 LED and 1 330 Ohm resistor

Context

This week LTEBS srl is interested in exploring the home automation market and asks you to develop a smart lamp prototype. The lamp will be simulated by an LED and the prototype must have the following features:

  • The bulb must turn on (ON/OFF) on the basis of a reasonable brightness threshold you have decided -> sampling of a photoresistor, ON/OFF switching of the LED
  • The user can choose the intensity of the light through a potentiometer -> sampling of a potentiometer sampling and LED driving for light intensity (tip: modulate light intensity only if LED is switched on)
  • The product must be able to be started remotely in order to guarantee compatibility with an App that the company's software engineers are developing -> ON/OFF command on UART + ISR Rx to start sensor reading + LED to indicate whether the PSoC is sending or not
  • For diagnostic purposes, it must be possible to plot the sampled signals and save them in a text log file -> it is required to provide the Bridge Control Panel .ini and .iic file for interfacing with the firmware (NB: Both signals must be plotted)

In order to sample more than one signal you must use the PSoC Creator AMux component. Photoresistor can be sampled using a voltage divider configuration, as in figure:

Photoresistor schematic

Connections

The external LED must be connected to pin 2.7, the potentiometer to pin 2.5 and photoresistor to pin 2.6. The UART must use the pins 12.6 and 12.7 in order to communicate through the KitProg.

Serial Port Communication

For remote command part, please use the following command:

  • “B”,”b”: begin, you can start sampling sensors
  • “S”, “s”: stop, don’t measure anything

Setup and Assignment Delivery

  • Fork this repository

  • Clone the repository you just forked by entering the following command in your terminal:

    git clone https://github.com/[your_username]/AY2021_I_HW_04.git

  • Open up the workspace in PSoC Creator

  • Activate the project with your name and surname

  • Work on your project. Remeber to save Bridge Control Panel configuration files (.ini and .iic) inside BRIDGE_CONTROL_PANEL_CONFIG_FILES folder inside your project folder

  • The last commit must be named 'SURNAME_NAME Final Delivery'

  • Propose a pull request before the deadline for the assignment, which is on October 30 at 6PM

Evaluation

The evaluation of the assignment will take into consideration the following aspects of the project:

  • successful build process without any warning/error generated
  • successful programming without any error generated
  • correct functioning of the device as per the requirements
  • code organization (header and source files, useful comments)
  • schematic organization and documentation
  • successful use of git for version control (commits with proper comments, use of branches, ...)
  • successful pull request on GitHub

Additional Resources: