5. Week5¶
Microcontroller¶
A microcontroller is a compact integrated circuit that controls specific functions in embedded systems. It includes a CPU, memory (RAM and Flash), I/O ports, and often timers and ADCs. Microcontrollers are used in devices like appliances, IoT gadgets, and robotics for automation and control.
XIAO ESP32-S3 Pinout for Digital I/O, Analog Input, and PWM
The XIAO ESP32-S3 is a versatile microcontroller board with a variety of pins for different functionalities. Here’s a breakdown of the pins you’re interested in:
Digital I/O Pins:
D0-D10: These 11 pins can be used for both digital input and output purposes. They are highly flexible and can be configured for various functions.
Analog Input Pins:
A0-A5, A8-A10: These 9 pins are designed for analog input, allowing you to read analog signals from sensors or other devices.
PWM Pins:
D0-D10: All 11 digital I/O pins can be used for Pulse-Width Modulation (PWM), enabling control over the duty cycle of a signal. This is useful for controlling the brightness of LEDs, motor speeds, and other applications.
Example¶
Search for the name of the Arduino used and choose a location
Then a suppository
To choose Getting started with seeed studio XIAO ESP32S3
Then search for esp32 and download it
With these steps, we search for the name of the Arduino written on it
To make sure the connection
Code Example C++¶
Use the three backticks to separate code.
/*
Blink
Turns an LED on for one second, then off for one second, repeatedly.
Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO
it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to
the correct LED pin independent of which board is used.
If you want to know what pin the on-board LED is connected to on your Arduino
model, check the Technical Specs of your board at:
https://www.arduino.cc/en/Main/Products
modified 8 May 2014
by Scott Fitzgerald
modified 2 Sep 2016
by Arturo Guadalupi
modified 8 Sep 2016
by Colby Newman
This example code is in the public domain.
https://www.arduino.cc/en/Tutorial/BuiltInExamples/Blink
*/
// 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(5000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
Confirm the code is active and running. (verify)>(upload)
Result¶
The second experiment using the microcontroller (Arduino) and LED
Search for Thonny website and download the first link
Steps to connect the Arduino and search for its name
Fill in the blanks
We searched for a code with the required name, which is the name of the piece we are working on esp32 blink python
Another code Python¶
import machine
import time
print("Hello, ESP32!")
led = machine.Pin(18, machine.Pin.OUT)
# Define a simple melody with durations (in seconds)
melody = [
(0.2, 1), # Note on for 0.2 seconds
(0.1, 0), # Note off for 0.1 seconds
(0.3, 1), # Note on for 0.3 seconds
(0.1, 0), # Note off for 0.1 seconds
(0.4, 1), # Note on for 0.4 seconds
(0.1, 0), # Note off for 0.1 seconds
]
while True:
for duration, state in melody:
led.value(state)
time.sleep(duration)
Resulte¶
