L293D is a chip that enable us to control two motors together with only one Arduino board or other microcontrollers. However, I was having a project that required controlling four DC motors together. Recently i brought a L293D Arduino Shields , it covered all of my pins that i need to use them to connect […]
Nandland Go Board – Your FPGA Playground My name is Russell and I am the creator of www.nandland.com. I started Nandland to increase the usage of FPGAs by making them easy to use. I am thrilled to announce after months of hard work the creation of the next phase of that plan: The first FPGA
Pull-up resistors are very common when using microcontrollers (MCUs) or any digital logic device. This tutorial will explain when and where to use pull-up resistors, then we will do a simple calculation to show why pull-ups are important. Suggested Reading Concepts that you should be familiar with before proceeding: What is a circuit? Resistors Voltage,
It includes everything a regular PC has and can do anything that a regular PC does, all at a low price of 69 USD. LattePanda runs perfectly on the go. Creating documents with Microsoft Office, playing HD videos and running Windows apps on LattePanda is exactly the same experience as using a regular PC. LattePanda
LattePanda – A £45 Win10 Computer For Everything Continue Reading
California, where I once lived, is in the midst of a severe drought. Thankfully, I now reside in North Carolina, a much wetter state. But even here there have been years when water was in short supply and people were asked to conserve. Most folks are happy to comply with such requests. But that’s not
In this Instructable I am going to show how to use an Arduino board and BitVoicer Server to control a few LEDs with voice commands. I will be using the Arduino Micro in this Instructable, but you can use any Arduino board you have at hand. The following procedures will be executed to transform voice
Speech Recognition with Arduino and BitVoicer Server Continue Reading
Fast & Easy Fake-TV Light module built for under $5; with enhanced features. With the use of this device you can go for holidays or on vacation leaving your home with a lived in appearance and thus an added layer of security. “I’m up and I am a night owl … or perhaps asleep on the
Experimenting with an HF oscillator, I needed to control the varactor diode voltage in precise increments over a 2V-10V range. A buffered potentiometer was the obvious choice, and connecting two pots in series to give coarse/fine control (or using a multiturn pot) would offer improved control over the varactor voltage. However, this approach still didn’t
Control accurate incremental voltage steps with a rotary encoder Continue Reading
The device is designed for contactless measuring and monitoring temperature of objects. It is built on Melexis MLX90614 sensor and can measure temperatures in the range from -70°C to +380°C with 0.5°C accuracy and 0.01°C resolution. The period of measurements can be set in the menu from 1 sec to 1 min in 10 sec
Contactless Infrared Thermometer (Pyrometer) using MLX90614 and MSP430 Continue Reading
Have you ever wondered what’s inside your MacBook’s charger? There’s a lot more circuitry crammed into the compact power adapter than you’d expect, including a microprocessor. This charger teardown looks at the numerous components in the charger and explains how they work together to power your laptop. Most consumer electronics, from your cell phone to
