Testing a 74HC4051 The 74HC4051 is an analogue multiplexer / de-multiplexer IC. To this this IC, an Arduino Uno can be used by hooking it up with two 74HC4051 ICs. The first one is used as a multiplexer, the second one as a de-multiplexer.
With so many information available, it’s sometimes hard to figure out where to start best. Are the tutorials you are using complete enough to get started properly, yet simple enough not to get lost as a newbie? Allow me to point you in the right direction.
Tiny tutorial about the PWM pins on the Arduino Uno, with timing diagram and sweep sample code
Having multiple Arduino boards communicate with each other, can be done in several ways. Depending on the data content, accuracy and direction the data needs to be sent, one protocol may be better than the other.
If you haven’t read the previous tutorial on multiple sensors, you may want to read that one first: Multiple HC-SR04 with Arduino using interrupts With using multiple interrupts, there’s the disadvantage that the sensors may interfere with each other, when facing the same direction, and crossing each others line of sight. Also, since most Arduino […]
Binary numbers, hexadecimal numbers, we all heard of it or even saw them. But how do you count binary, or even calculate with them?
You may have noticed that reading and/or writing multiple I/O pins in an Arduino is quite time consuming, at least from a relative point of view. In this Quicky, you will learn how to speed up this process significantly.
Controlling RC servos with Arduino is relatively simple, at least when you use Arduino’s servo library. But the default timing may be a bit off for your application and the library seems a bit useless, or is there a simple way to fix this?
If you need to measure distances or detect objects, but you don’t have a large budget, the HC-SR04 Ultrasonic Sensor may be something for you.
When using autonomous vehicles, it’s important to be able to detect obstacles fast and efficient. The ideal way to do this, is by using Lidar, but that may turn out expensive. A much cheaper way is by using multiple ultrasonic sensors like the HC-SR04. This tutorial explains how you can use multiple HC-SR04, reading and […]