Access control with Arduino plus Keypad 4×4 plus Servo

Hi guys, I bring a new instructable for arduino, the control access with password, 4x4 keypad and a servo. We will use the Password and Keypad librarie for arduino, besides using the servo library, but this project can also be modified by changing the servo, a motor reley or motor stepper, or any other ideas ... This project can be used in different cases, for doors, Servo action, etc..   Step 2: Prepa ...

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Controlling Hand Drill with Roboduino using Arduino

This will explain how we re-purposed a hand drill to re-spool solder using a roboduino (arduino compatible), two servos, and a DIY encoder.  While one could use TRIACs to play with the AC power going into the drill, just using a servo to control the throttle is simple and avoids the pesky high voltage. Hand drills are pretty strong, hopefully this instructable will help others integrate it into other projec ...

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Control Servo with Light using Arduino

Hello! In this Instructable i will teach you how to control a servo using a Photocell. This is very simple and good for beginners. Step 1: Materials 1 x Photocell 1 x 10k Resistor 1 x Arduino 1x Breadboard 1x Servo and some jumpers Step 2: Wiring it up Wire everything following the schematic below. Step 3: The Code The Code is very simple: #include <Servo.h> Servo myservo; int val; void setup() { myse ...

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Simple 2-way motor control for the arduino

When I say simple, I don't mean use a speed control. But control the motor directly without any external circuitry. Here's how: How this came about: I recently was working on an instructable about charlieplexing with an arduino. And I was wondering if the same principle would work with motors to some extent. So I came up with the idea that if you used a motor instead of an led you could have 2-way cont ...

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Serial Servo Controller with Arduino

I'm going to show you how to use your Arduino to control up to 12 servos at once with minimal jitter.  Using a simple serial interface you can control the position of up to 12 servo channels.  Up to 10 snapshot positions can be saved and played back at any time.  Start up values for each servo can be saved as well. There are two major parts to the application.  The first part I will discuss is the firmware ...

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Compact 3-in-1 Stripboard DIYduino with Integrated Sensor and L298N Motor Shield

I am presenting a compact design of a stripboard Arduino board (DIYduino) that includes a 2A motor driver and has additionally the functionality of a sensor shield. The 2-channel version cost approximately $29.43 and is more affordable compared to $39.00 for a commercially available system consisting of an Arduino Uno, $21.50, a sensor shield, $8.50, and a motor shield, $9.00. The cost can be further reduce ...

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Drive by wire go kart using Arduino

I just got a new go kart engine, i went from 6hp to 10hp. This new kohler engine I got I think was not built to put on a go kart, so I had some trouble finding a way to attach the gas petal. Well after a few days of not really figuring anything out, I remembered that I had gotten an arduino about a week ago, and maybe I could use this to help me out. Step 1: Power and safety circuit below is a diagram of ho ...

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Arduino Servo Basic Code

In arduino projects, you might add servo to your projects. This short tutorial, show you the basic how arduino and servo works together.   Instruction; 1) Connect all jumper wire as shown in diagram. 2) Connect the signal wire from servo to digital pin 9. Upload this code to your arduino /*   Servo Basic   Understanding the basic of servo in arduino projects. Sweep servo to 0, 90, 180, 90 and 0.   Code ...

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Arduino Motors and Transistors

This week, we’ll finally be using the Arduino to control some motors! First up, we’ll control a standard DC motor running off a 9V battery with the help of an NPN transistor and a PWM (Pulse Width Modulated) signal from the Arduino. [box type="note" color=" #202020 " bg="#ffbb00 " font="verdana" fontsize="14" radius="20 " border="#000" float="right" head="Attributes"]Thanks to Jeremy , for this articles[/bo ...

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Arduino stepper motor and servos shield

This instructable will show you show to build an Arduino shield which can be used to control 3 servos and 1 stepper motor using 4 potentiometers. You will need: access to a laser printer/cnc router/etching chemicals 7 x 3 pin 3.5mm terminal blocks 2 x 2 pin 3.5mm terminal blocks 2 x 8 pin stackable headers 2 x 6 pin stackable headers 1 x 8 pin chip socket 1 x L293D motor driver chip optional: access to a la ...

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Strandbot – a solar & arduino powered R/C motorized Strandbeest

The Strandbot is a DIY upgrade for the Strandbeest originally designed by Theo Jansen.  Strandbeests are amazing mechanical creatures that are able to move on their own using just a little bit of wind power.  Unfortunately my tiny apartment is short on wind, so I decided to upgrade a miniature Strandbeest using an Arduino and some motors.  The brain is powered by a solar-charged Li-Po battery so the Strandb ...

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Self Balancing Unicycle

Following the popularity of our self balancing scooter and the SciChair we decided to try something a little edgier, the Self Balancing Unicycle. This project reuses a lot of stuff from our previous projects, using an arduino as the brains behind the scenes. Step 1: Ready your tools Before we begin lets ensure we have everything we need. For this project you probably want to be fairly comfortable with weldi ...

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