Create a Smart Doorbell using Ultrasonic Sensor and ESP8266 with LED and Buzzer that will send a notification on Blynk app. Provide the code and steps to build the model.

!!!EXPLAIN HOW IT WORKS WITHIN THE CODE WITH COMMENTS!!! The idea of ​​the Project is to use the PIR sensor in combination with the HC-SR04 ultrasound sensor, a servo motor, three LEDs (red, yellow, green), an LCD and a buzzer. The final project must simulate an entrance and exit system of an urbanization that can grant access when the PIR detects a person. And meet the following conditions: 1) The mechanical arm must be simulated with a servo motor (when it is down, 0 ﹾ, the red led must be on). This must go up when placing a hand on the PIR sensor (during the raising of the arm the yellow led must be turning on and off).2) Simultaneously when the mechanical arm is activated, an audible alarm must also be activated (buzzer at the rate of the yellow led) and when the arm is fully up (90 ﹾ) the green light must be turned on (the only LED on at that moment).3) The ultrasound sensor will detect an object that interferes with the normal return of the arm to its initial position and will…

In order to define the user interface design for the mobile app that will be used by will 4 live, we will need to test a prototype. Just for the users, the testing?

Imagine you work in online marketing for a hotel and want to improve the hotel's app experience for customers. Give an example of a question you could ask during usability testing. B. Based on the findings from the user testing conducted, it was found that participants felt pressured to provide their personal information too early during the account creation process. What advice would you offer to the UI interface designer to address this issue?

Pro_Lab 7 1. Modify the toolbar of the ContactActivity to display the proximity sensor readings. Add the proximity sensor service so that this works. 2. Modify the app so that when the user long-clicks the cell number of a contact, the text messaging service is opened instead of the phone service. You will have to have a permission in the manifest to send text (SMS) messages. 3. Modify the compass to report NW, NE, SW, and SE, in addition to the N, S, E, and W headings.

Provide three justifications for designing an app's UI before writing any code.

In order to complete the user interface design of the mobile application that a group of students are developing for the charity will 4 lives, we must conduct user testing on a prototype. simply user testing is all.

Is it helpful for your app to use a Java Layout Manager? A panel's layout manager has a number of possible settings. Could you walk me through your thought process, and provide an example of how you would tackle this problem?

Create a simple user interface design in android studio using the combination of linear layout horizontal and vertical.

Using Xcode in Swift language. How do I create an app using a slider that changes the background color to make it darker or lighter as I use the slider and shift it from left to right?