45-Day ESP32 Bootcamp

Explore MicroPython for programming hardware with Python, discover its history and differences from other languages, and learn how to set up, deploy, and test IoT projects on hardware.

Explore Micropython IDEs, install the PyCharm Micropython plugin, use Moo editor, and interact with devices via serial ports to run a repl on ESP8266, ESP32, or Microbit.

Learn to set up MicroPython on your board using the PiCraft IDE, burn firmware, and deploy code to ESP32 or other boards via the IDE or command line.

Add the ESP32 JSON link in Arduino preferences; install the ESP32 board, then select the duet ESP dev kit version 1 and install the USB to UART driver if needed.

Wire an external led with a 220 ohm resistor, connect to ground and a pwm pin, and fade brightness from zero to full with pwm.

Fade a led on the esp32 using micropython with pwm, fading in and out from 0 to 1023 at 100 hz through simple duty adjustments.

Learn to address Esp32 pins with micropython's machine.pin class, create output and input pins, read values, and map pins to chip pins while using pull_up and pull_halt for deep sleep.

Learn analog to digital conversion on the ESP32 with micropython, configure adc pins 32–39, set attenuation to extend range from 0–1 v to 0–3.6 v, and select 9–12 bit readouts.

Explore the i2c protocol on the esp32 using micropython, wiring soft i2c and hardware i2c, scan devices, read and write bytes, and memory operations via scl and sda pins.

Master for loops in Python, using range, break, continue, else, and nested iterations to process lists, strings, and other sequences.

Learn how to use while loops in Python to execute code while a condition holds, including incrementing a counter, testing with less than six, and using break, continue, and else.

Download and install PyCharm, the Python editor, choosing the community free version for Windows, Mac, or Linux; launch as administrator to access the user interface.

Upload your first wifi scan sketch to the esp32 dev kit, select the correct com port and board, and view nearby networks in the serial monitor.

Set up the ESP32 as an HTTP server in Wi-Fi access point mode to serve web pages to connected clients.

Learn to build an internet of things smart garden using ESP32 and Blink app, monitoring soil moisture, temperature, humidity, and water level, then remotely manage care via a mobile interface.

Explore the working principle of using ESP32 to monitor temperature and humidity sensors and control relays for high-voltage devices via the Blynk app, enabling real-time, remote garden management.

download, install, and update the Arduino IDE from the official Arduino website, selecting Windows, Mac, or Linux; verify and upload sketches using setup and loop with the serial monitor.

Install the ESP32 board via boards manager, add ESP32 json link to preferences, select the duet ESP dev kit version one, and install the USB to UART driver if needed.

Design an ESP32 circuit featuring soil moisture, DHT11 temperature and humidity, and water level sensors plus a relay, using fritzing for simulation and pin mappings for coding.

Learn to build an ESP32 client that sends HTTP requests to a PHP script, posting touch sensor readings to a MySQL database, and display them with a web page.

Install the Arduino software, add the ESP8266 boards package via the boards manager URL, and install the USB driver to upload a DIY wifi-enabled sketch.

Upload your first code to the ESP32 board by selecting ESP32 dev kit, connecting via the com port, and running the wifi scan example to view networks in serial monitor.

Learn to program ESP32 with Arduino IDE, connect to WiFi, and send sensor data to a PHP endpoint via HTTP POST using the WiFi and HTTP client libraries.

Explore the ESP32 pinout, identify ADC, DAC, PWM, SPI, UART, and I2C pins, and learn which GPIOs are safe or input-only, with boot-time considerations for testing.

Explore thermocouples—two dissimilar wires forming a millivolt signal at hot and cold junctions—to measure temperature, covering Seebeck effect, alpha and beta constants, and common types like j and k.

Examine the glass thermometer as a complete system, with the bulb as the sensor, and the scale as the indicator. Consider brittleness, mercury and alcohol temperature limits, and reading accuracy.

The bourdon tube is a hollow elliptical tube that bends under pressure, moving a linked gear and dial pointer to display reading, and can drive a transducer or air nozzle.

Explore piezoelectric crystals that generate electric charge under mechanical stress and convert pressure into voltage, with applications in pickups, microphones, spark ignition, and pressure transducers.

Explore magnetic pickups using an inductive coil near a rotating body; pulses from a passing notch measure speed. Understand tachometers, including ac sinusoidal outputs and dc proportional outputs.

Discover flow meters, including positive displacement types, with meshing rotors having loops that drive a shaft, pointer, and dial to indicate flow based on rotation speed.

Explore how optical position sensors operate, detailing linear and rotary variants, light emission through stripes, pulse counting, and absolute versus incremental encoders with grayscale and ordinal scales.

Explore depth gauges for liquids and powders in tanks, including ultrasonic, electronic, and pneumatic methods, and learn how pressure relates to depth.

Learn to build ESP32 email alerts driven by sensor readings using Arduino IDE and SMTP servers. Configure a free sending email account and monitor readings via the ESP32 web server.

Verify ESP32 board recognition and code upload via the Arduino IDE, then test sending plain text and HTML emails from the ESP32 using SMTP, adjusting message body parameters.

Configure the ESP32 to read a touch sensor and send an email alert when the value exceeds 100, including the sensor reading for real-time monitoring.

Find and prepare an ESP32 board, Arduino IDE, sensors, resistors, buttons, and jumper wires, then create free Adafruit and iFit accounts for automation projects using wifi.

Connect the ESP32 dev kit, select the correct com port and board, upload the wifi scan sketch in the Arduino IDE, and view available networks in the serial monitor.

Learn to build an ESP32 web server, connect to a database, send email alerts, create an IoT smart garden, and enable Telegram notifications and over-the-air updates.

Control ESP32 as a web server by handling HTTP GET requests from a browser to turn LEDs on or off and display their status.

Configure the ESP32 devkit as an access point, compile and upload the sketch. Connect to the AP and control LEDs via a web page served at 192.168.4.1.

Write a php script to display readings from ESP data table, connect to the database, fetch id, sensor data, location, values, and reading time, and render them in a table.

Burn code to an ESP32 devkit, upload it, verify wifi connectivity and IP address via the serial monitor, and align HTTP request data and post data naming with the database.

Learn what an smtp server is, an internet standard for email transmission, and how to connect your ESP32 to smtp servers like Gmail or Yahoo to send emails for free.

Configure an ESP32 project to read a touch sensor and send an email alert when the value exceeds 100 using SMTP, with optional temperature sensors and serial monitoring.

Set up the blink app to monitor sensor values by installing the app, creating a project for ESP32, and configuring four gauges for temperature, humidity, water level, and soil moisture.

Copy the authentication token from the blink app and update the ESP32 code with your WiFi SSID and password. Set the refresh rate to two and five seconds, then compile.

Create a telegram bot for IoT by registering a bot, naming it to end with bot, and securing the HTTP API token and your ID to send data from ESP32.

Prepare the Arduino IDE to program the ESP32 by installing essential libraries—Arduino JSON and Universal Telegram Bot, latest version 1.3.0—and configure the boards manager with the ESP32 JSON link.

Learn to create an ESP32 circuit in Fritzing by adding a dev kit, a motion detector, and an LM35 temperature sensor, then connect ground, vcc, digital and analog pins.

Learn how ota over the air firmware updates work for the ESP32, enabling wireless wifi-based code updates without a serial cable for remote, continuous releases.

Discover how to enable over-the-air updates for ESP32 boards via a web server using the Async Elegant OTA library, enabling wireless firmware uploads without cables.