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.
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.
Table of Contents1 Introduction2 PWM Fan Control2.1 Pulse Width Modulation (PWM)2.2 Common DC Fans2.2.1 2-Wire Fans2.2.2 3-Wire Fans2.2.3 4-Wire Fans3 Simple Fan Control3.1 ESP32 Fan Hookup3.2 Fan Speed Control Code4 Tachometer4.1 Tachometer Code4.2 Temperature Controlled Fan4.3 Temperature Controlled Fan Hookup4.4
Table of Contents1 Introduction2 TF-Luna LiDAR2.1 Principle of Operation2.2 TF-Luna Technical Specifications2.3 TF-Luna Pinout3 TF-Luna with Windows3.1 TF-Luna with Windows Hookup3.2 TF-Luna with Windows Demo3.3 TF-Luna with ESP32 (I2C Mode)3.4 TF-Luna with ESP32 Hookup3.5 TF-Luna with ESP32 Code4 TF-Luna with
Table of Contents1 Introduction – NVIDIA’s Jetson Platform2 Jetson Orin Nano Super Developers Kit2.1 NVIDIA Jetson Orin Nano2.2 Jetson Orin Super Power Boost2.2.1 LLM (Large Language Model)2.2.2 VLM (Vision Language Model)2.2.3 ViTs (Vision Transformers)3 JetPack 6.14 Getting Started with the
Digital Potentiometers, or “DigiPots”, are exactly what you think they are – potentiometers whose wiper position is set using a digital signal instead of a mechanical shaft or slider.
Today we will see how to use Digital Potentiometers and we’ll build a couple of projects. We’ll build a remote-controlled audio volume system and a variable power supply whose output voltage can be set with a web-based interface.
Diodes are the oldest and most elementary semiconductor. They are also among the most useful, and there are a variety of diodes to do everything from convert AC to DC to detecting radio waves and to producing light.
Today we wil take a look at diodes. We’ll see how they work, and how to use them.
Operational Amplifiers, or “op-amps”, are fundamental analog electronics building blocks that are used in both analog and digital designs. And if you are not using them, it’s about time you started!
Op-amps can be wired in dozens of different configurations, they are very versatile.< /p>
Let’s learn more about using Operational Amplifiers.
Linear DC Power supplies are no longer as common as switching supplies, but they are still a good choice for many applications.
Today we will learn how linear power supplies work, how they differ from switching power supplies, and how to use voltage regulator modules.
We will then construct a DC Power Supply suitable for use on the workbench.