Learn to setup and use WLED, the amazing ESP32-based product for controlling every type of LED strip. We will see how WLED works, how to choose LED strip lights and how to safely wire everything up.
We wil also hookup a microphone and use Audio Reactive, to control our LEDs with sound.
Learn how to use both 7-segment and dot-matrix LED displays with an Arduino.
We will be working with both single and multiple display units, in a variety of configurations.
LEDs are by no means dead, they are still a great choice for a number of applications. Add one to your next Arduino project.
In addition, we will build an Arduino OLED Temperature and Humidity Meter using an OLED and an I2C temperature and humidity sensor.
RGB (Red-Green-Blue) LEDs are versatile devices that can add color and functionality to your Arduino projects.
In this article we’ll examine the different types or RGB LEDs available to experimenters and see how to best use them with an Arduino. It promises to be a very colorful read!
Want to build n electronic compass or a guidance system for a robot? Adafruit’s LSM303AGR module is the perfect component for you.
Today we wil look at this versatile module and perform experiments with it. We wil also see how to calibrate it, and we wil indeed build a simple compass with an OLED display.
Come meet the XIAO family! Today we wil take a look at all of the members of the Seeeduino XIAO microcontroller family. And there are over a dozen of them!
We wil check out their specs and then create three very different projects that use the same circuit (but different XIAO boards).
Air Pressure is literally all around you! Today we wil be testing three inexpensive yet accurate air pressure sensors – the MS8607, BME280 and LPS25.
All of these sensors are on similar Adafruit modules. We will l try them out with a variety of microcontrollers, and we’ll code in C++ and MicroPython.
Today we are working with the TMP117, a precision temperature sensor with an accuracy within 0.1 degrees Celsius.
We’ll see how this sensor, on a module from Adafruit, can be easily connected to a microcontroller to build a super-accurate thermometer. We’ll even put together a WiFi thermometer with an OLED display.
Non-volatile Storage is memory that keeps its data without power. Pretty useful for saving configuration settings and web data.
Today we will examine four types of non-removable NV Storage – Internal Flash, External EEPROM, SPI NOR Flash and FRAM. We’ll see how they work, what advantages (and disadvantages) they have and how to use them with an ESP32.
Table of Contents1 Introduction2 Carbon Dioxide2.1 Measuring CO₂ vs. eCO₂3 ENS160 (with AHT21)3.1 ENS160 Pinout3.2 ENS160 Hookup3.3 ENS160 Code4 SCD41 CO₂ Sensor4.1 SCD41 Pinout4.2 SCD41 Hookup4.3 SCD41 Code5 Using Multiple Sensors5.1 Multiple Sensor Hookup5.2 Multiple Sensor Code6 Conclusion6.1 Parts List6.2