11. Input Devices¶
Welcome to week number 11, input devices.
GROUP ASSIGNMENT: - Probe an input device(s)’s analog levels and digital signals. - Document your work on the group work page and reflect on your individual page what you learned.
INDIVIDUAL ASSIGNMENT: - Measure something: add a sensor to a microcontroller board that you have designed and read it.
Assignment Checklist.
| item | Activity | Status |
|---|---|---|
| task 1 | Linked to the group assignment page. | IN PROGRESS |
| task 2 | Documented what you learned from interfacing an input device(s) to your microcontroller and optionally, how the physical property relates to the measured results. | IN PROGRESS |
| task 3 | Documented your design and fabrication process or linked to the board you made in a previous assignment. | IN PROGRESS |
| task 4 | Explained the programming process(es) you used. | IN PROGRESS |
| task 5 | Explained any problems you encountered and how you fixed them. | IN PROGRESS |
| task 6 | Included original design files and source code. | IN PROGRESS |
| task 7 | Included a ‘hero shot’ of your board. | IN PROGRESS |
| ## GROUP ASSIGNMENT | ||
| ## MEASURING EQUIPMENT AND INSTRUMENTS. | ||
| For the effective way of taking measurements, we use measuring instruments, now for the INPUT DEVICES week, we will use the already known OSCILLOSCOPY. |
OSCILLOSCOPY.¶
Electronic measuring instrument for displaying electrical signals at a given time. These signals are expressed in graphs in which an electron beam passes through a coordinate axis on a screen.
We will make the connection on channel 1, for collecting samples, and configuring the type of signal that we will take for reading.
We will perform the initial test of measuring the input voltage to the board.
Code Example¶
Use the three backticks to separate code.
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
Learnign¶
The correct selection of parameters for the verification of the signals within must be taken into account.