Tag Archives: Arduino

Using Python with Arduino

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by toptechboy.com:

This series of lessons will teach you how to take your Arduino projects to the next level by having the Arduino interact with the Python programming language. Python is a free program you can download. Since you have already learned the fundamentals of programming through our first 20 Arduino lessons, learning Python will be a snap!

Using Python with Arduino – [Link]

Make an Apple Watch Door Unlocker

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Here’s how to automagically open doors at home or at work with a tap on your wrist. By Marc Jensen, James Squires and Shawn Roske:

What’s an Apple Watch good for? How about unlocking doors with just a tap on an app? We figured out how do something no one else has done for under 150 bucks, using standard door-strike hardware, our custom app, and a tiny RFduino microcontroller. In this Weekend Project we’ll show you exactly how to do it.

Make an Apple Watch Door Unlocker – [Link]

Super Simple Arduino Load Driver V2.0

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Turn loads on and off with your Arduino! Use 5V to control up to 100V. Add a motor, solenoid, or get creative! P channel or N Channel.

This is version 2.0 of the previously successful kickstarter project I launched last year. I have a ton of these PCB boards left over and it got me thinking. Why not find a P channel MOSFET with the same pinout and use it to control the direction of the motor also. I looked around and found the IRF5210. I ordered up a batch and tested them out. All thats left to do now is order a large quantity for the price break and assemble the rest of the boards.

Super Simple Arduino Load Driver V2.0 – [Link]

HamShield for Arduino (VHF/UHF transceiver)

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HamShield lets your Arduino talk to far away people and things using amateur radio bands (Coverage: 136-170MHz, 200-260MHz, 400-520MHz)

HamShield lets your Arduino talk to far away people and things using powerful amateur radio bands! Best of all, the hardware and software is open source!

With the power of Arduino, you can use the HamShield to build and invent amazing things in minutes!

HamShield for Arduino (VHF/UHF transceiver) – [Link]

Measure Capacitance with Arduino

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by Maximous @ instructables.com:

This tutorial provides a guide on how to set up an Arduino to measure the capacitance of a capacitor. This can be useful if the capacitor is unlabeled or if it is self-built.

Capacitance is an object’s ability to store an electric charge. Reasonably, this object is referred to as a capacitor. A capacitor that stores this charge in an electric field between two conductive plates is known as a parallel plate capacitor.

Measure Capacitance with Arduino – [Link]

MOVI, a standalone speech recognizer shield for Arduino

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MOVI is an offline speech recognizer and voice synthesizer that adds voice control functionality to any Arduino project

MOVI stands for My Own Voice Interface! It is the first standalone speech recognizer and voice synthesizer for Arduino with full English sentence capability:
Up to 200 customizable English sentences.
Speaker independent
Standalone, cloudless and private
Very easy to program

MOVI provides an alternative to buttons, remote controls, or cell phones by letting you use full-sentence voice commands for tasks such as turning devices on and off, entering alarm codes, and carrying on programmed conversations with projects.

MOVI is plug and play! Connect the shield to your Arduino Uno or compatible board, connect an optional speaker, and you’re ready to go.

MOVI, a standalone speech recognizer shield for Arduino – [Link]

Arduino DCF77 Master Wall Clock

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by oliverb @ instructables.com:

Time displayed on large 1″ (26mm) 7 segment displays with secondary 4×20 LCD information display. The clock can be used stand alone or provides the following pulses to drive slave clocks 1 sec alternating, 30 sec, 1 min , 1 hour, 24 hr, 15 min chime of quarter hours, hourly chime of hours.

An Arduino 328 Microprocessor is used to decode and display time & date from the DCF77 “Atomic” Clock in Mainflingen near Frankfurt Germany.
The DCF77 signal is decoded using the fantastic new DCF77 library written by Udo Klein meaning the clock stays in sync and keeps perfect time even with a massive amount of noise on the received DCF77 signal. Udo Klein’s DCF77 library also continually “Auto Tunes” the quartz crystal so in the rare event the signal can’t be decoded the clock remains accurate within 1 sec over many days.

Arduino DCF77 Master Wall Clock – [Link]

Arduino VFD Display Clock Tutorial

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by Kesselwagen @ instructables.com

Vacuum fluorescent displays look really kinda fancy and cool to me, I really love the blue-breen color. That’s why I decided to write this Instructable about a clock based on this technology. This is my first instructable here, showing you how I have designed built my clock and how you can build yourself exactly the same or a similar clock that utilizes the VFD display. I’m not a native speaker – just for you to know if you’re wondering why some sentences might make no sense at all.

Arduino VFD Display Clock Tutorial – [Link]

DIY soldering station

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MatthiasW over at DebuggingLab posted his DIY Weller station clone project, that is available at Github:

At the fpv-community.de Forum I read about a DIY Weller station. Basically an Arduino shield to drive a Weller soldering tip. As there is not much to it, the board simply contains an precision OpAmp, a power MOSFET, 2 buttons for adjusting the temperature and a display to show the current values. This design looks like a good starting point for my own advanced project. As I have lately discovered a 1,8 inch SPI TFT at banggood.com for an amazing price ( ~ 4.60 $ / 3,70 €), I started using them regularly in my projects. So I surely wanted to use it with this soldering station as well.

DIY soldering station – [Link]