A data-acquisition system on a chip

Multifunction data-acquisition systems have been around for a long time as stand-alone instruments, plug-in cards, cabled computer peripherals, and embedded in systems. Such systems are often designed with separate ADCs, DACs, and digital I/O devices. Many microcontrollers include ADCs and DACs, but that locks you into using that device. The AD5592R from Analog Devices combines all of these I/O functions, l ...

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Arduino Robot

first of all, i am sorry if i have grammar mistakes, i am asian and i am 13 years old, i study arduino by my self (mostly my self) and this is my first project and also my first instructables. this is the robot that i used to compete with my friends in soccer robot. i did some modifications when i used it but it is broken now, so what i show you here is just a smartphone control robot. i will upload the imp ...

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The Making of a Cooled CMOS Camera

Now this post will be for some serious stuff involving video compression. Early this year I decided to make a lossless compression IP core for my camera in case one day I make it for video. And because it’s for video, the compression has to be stream operable and real time. That means, you cannot save it to DDR ram and do random lookup during compression. JPEG needs to at least buffer 8 rows as it does comp ...

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Arduino-Using Shift Registers With Ultrasonic Sensors

The HC-SR04 Ultrasonic range sensing module is great for sensing distances that can be used as an input for your Arduino projects, but using multiple (more than two) can quickly cost you a lot of pins. This basic Instructable gives you the code and basic instructions to use the 74HC595 8 bit series to parallel shift register so you can connect up to 8 HC-SR04 modules (16 IO pins) while using only 4 Arduino ...

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LTC3402 – 2A, 3MHz Micropower Synchronous Boost Converter

Features Synchronous Rectification: Up to 97% Efficiency 2A Switch Current Rating Fixed Frequency Operation Up to 3MHz Wide Input Range: 0.5V to 5V Very Low Quiescent Current: 38µA (Burst Mode Operation) 2.6V to 5V Adjustable Output Voltage 0.85V (Typ) Start-Up Voltage No External Schottky Diode Required (VOUT < 4.3V) Synchronizable Switching Frequency Burst Mode Enable Control Antiringing Control Reduce ...

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Turn Signal Biking Jacket

This tutorial will show you how to build a jacket with turn signals that will let people know where you're headed when you're on your bike. We'll use conductive thread and sewable electronics so your jacket will be soft and wearable and washable when you're done. Enjoy! A version of this tutorial is also on my website. https://youtu.be/ZtNEPkwCfxA Step 1: Supplies Get your supplies. You need: -- LilyPa ...

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Dobot M1, All-in-One Multifunctional Robotic Arm

Shenzhen Yuejiang Technology Co. Ltd (“Yuejiang”) is a leading robot arm solution provider in China. Yuejiang is established in July 2015 in Shenzhen, China by 5 dedicated robotics engineers with the mission of facilitating the development and upgrading of the industrial robotic arms solutions in China and continuously developing the extensive applications in this arena. Yuejiang’s newest product is Dobot M ...

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Arduino Weather Station with DHT11 and BMP180

Introduction In the previous tutorial I showed you how to build a weather station using only the DHT11 sensor and I said the readings from this sensor is fairly accurate. In this tutorial, I will be using the DHT11 to measure only the humidity and BMP180 to measure pressure and temperature. That’s because its readings are more accurate than the DHT11 temperature readings. Project Parts I will be adding only ...

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Control Your Home Appliances Using Arduino and Relay

Hello everyone, In this instructable we will be using Arduino And Relay module to control home appliances. This instructable covers: Basics of Relays.Connecting Relays with Arduino.Controlling AC appliances using Relays. How it works: The relay uses an electromagnet to mechanically switch electric appliances.A relay can be operated by a relatively small electric current that can turn on or off a much larger ...

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Spinduino – IoT Fidget Spinner

Description A smart, programable Fidget Spinner with the following features: * JavaScript programmable * 10-Pixel RGB PoV display (using APA102 LEDs) * Spin count / speed detection using a magnetic latch * Using Nordic Semiconductor nRF52832 chip * Bluetooth Low Energy (BLE) communication with smart phone / computer for controlling the display, reading the spin count and programming * Over-the-air firmware ...

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Simple SSR has zero-cross on/off switching

This Design Idea is a solid state relay (SSR) which uses a triac to switch AC loads at high current. There are plenty of simple SSR circuits available, but this may be the simplest circuit that achieves turn-on and turn-off only when the AC line voltage is near zero. Figure 1   AC SSR schematic with zero-cross switching (use browser zoom or open in another tab to enlarge) Transistor Q2 acts as a clamp to di ...

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Automated Plant Watering System

House Plant Babysitter Going away from a while? Need something to babysit your house plants?This box will automatically deliver an adjustable volume of water to four plants (or less) every day, or once every "x" day (up to seven days). A micro controller handles the time tracking and 120AC switching (via a relay). The relay powers a fountain pump which functions as the water delivery system. Step 1: Materia ...

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