Hello guys! In this instructable I'll teach you how to make a very simple proximity sensor using infrared LEDs and Arduino. After several times trying to optimize it, I finally came up with something that is quite simple e precise. Just like my first instructable, this project is perfect for beginners in the arduino's world, with a few components anyone can make it. I hope you all enjoy it.
At the Codemotion in Milano, I had a chat with Federico Vanzati from Officine Arduino, and he gave me the fantastic idea to try to use a supercheap USB Audio card with Arduino Yún to give to it full audio capabilities with zero effort.
Adafruit is excited to add another product to the growing Adafruit Bluefruit line, this time it's the Bluefruit EZ-Link: the best Bluetooth Serial link & programmer ever made. "Like you, we have purchased all sorts of Bluetooth devices with high expectations - we just wanted something that worked! But nothing ever did exactly what we wanted: there was always some configuration modes to wade through, and trying to reprogram an Arduino is impossible. So we did what we always do, we went in and engineered something better. Something that works!"
What if making an Arduino, or wiring up an Arduino was as easy as printing one out? In this tutorial we printed our own Arduino Pro Mini board using a pen plotter and the Electroninks Circuit Scribe (a rollerball pen with highly conductive ink). Within 15 minutes we printed the board, placed components down with glue or tape, and uploaded a sketch.
Recently we saw a neat project by the people from Evil Mad Scientist – their “Peek-O-Book“, a neat take on a book with a shy monster inside, based on hardware from their Snap-O-Lantern kit. Not wanting to fork out for the postage to Australia we decided to make our own version, of which you can follow along.
This is a fun project that doesn’t require too much effort and has a lot of scope for customisation. There’s no right or wrong when making your own (or this one!) so just have fun with it.
NavSpark is a small, powerful, breadboard-friendly, 32bit development board that is Arduino compatible, with a world class GPS receiver as on-board peripheral, and under $15.
There is also NavSpark-BD, a variant model having world-class GPS/Beidou receiver as on-board peripheral, that enables you to adopt new GPS/Beidou satellite navigation technology when Broadcom Qualcomm just recently came out with solution supporting Beidou to their tier-1 smartphone customers like Apple and Samsung.
TThe original Adafruit Motorshield kit is one of our most beloved kits!http://www.adafruit.com/products/1438 --which is why we decided to make something even better. We have upgraded the shield kit to make the bestest, easiest way to drive DC and Stepper motors. This shield will make quick work of your next robotics project! We kept the ability to drive up to 4 DC motors or 2 stepper motors, but added many improvements:
Instead of a L293D darlington driver, we now have the TB6612 MOSFET driver: with 1.2A per channel and 3A peak current capability. It also has much lower voltage drops across the motor so you get more torque out of your batteries, and there are built-in flyback diodes as well.
The Odhner Arithmometer was a very popular pinwheel calculator invented in Russia in 19th century by a Swedish immigrant called W. T. Odhner. Like most of pinwheel calculators, it worked with an engine formed by a set of linked wheels which could perform the four basic mathematical operations within a machine of reduced size.
My awesome rubber band turret, controlled by an Arduino Uno, interfaced through a thumbstick. I have control over the X/Y movements of the turret, at various speeds depending the tilt, as well as firing and laser switching on/off all from the little thumbstick. Its powered by a 9V external wall adapter, and an additional 5V for the laser (I don't have a V. reg.)
The SPEED-VEST is a bicycle safety device and advocacy tool which displays the wearer’s current speed on their back in easy-to-read lighted numerals. It improves rider conspicuity while legitimizing bicycle speeds on the roadway. Originally conceived by Brady Clark and engineered by Mykle Hansen, it just won the Hub Bike Shop’sBike Gadget Contest in Minneapolis, MN.
The system consists of a wheel speed sensor, a wearable numeric display and a small computer that does the thinking. The computer is an Arduino: an open-source embedded computing platform powered by an Amtel microcontroller. It runs for 6 hours on a 9 volt battery.
Recently I've been making a device that unlocks my front door when a specific rhythm is knocked. It uses a piezo sensor and a solenoid motor - similar to what's used in car locks. I've programmed it to learn a new rhythm code at the push of a button and to recognise the rhythm regardless of the knock tempo. During the day a solar panel outside the door charges the batteries. I've still got a few technical things to fix up and I'll hopefully make it a lot smaller once it's finalised but for now it's so good not having to put 500 bags of groceries down to open the door.
If you’re a guitarist, or know a guitarist, you probably know just how many guitar effects there are out there — but what if you could design your own effects?
[J Rodriguez] has just released his opensource Arduino guitar pedal shield, dubbed the pedalSHIELD. He designed it as a platform to learn about digital signal processing, effects, and synthesizers — without needing an in-depth knowledge of electronics or programming. It allows you to design your own effects in C/C++, or download from his own library online. Some of the downloadable presets include an octave pedal, reverb pedals, delay pedals, and even distortion pedals!
After figuring out how the Elinchrom EL-Skyport Transmitter works, I wanted to do a proof of concept implementation with an Arduino. This would allow me verifying my assumptions I made in my previous investigation. The hardware is based on an Arduino Leonardo equipped with a cheap (< 4 USD) nRF24L01+ module. After powering up the Arduino, it sends out a trigger pulse to the EL-Skyport Receiver every 500 ms.
Our company here in Bangladesh owns a quite old concrete batch plant, which had full manual control requiring an operator to control 14+ switched and observe 3 mechanical scales (dial gauges). I was successful to upgrade this plant to an automated unit requiring minimal operator input using custom made Arduino Uno compatible board and LIFA. Wiring is still very messy and remains unfinished, which I shall take care in the near future after all testing is done.
The 86Duino is a high performance and fully static 32-bit x86 processor board compatible with Windows OS, Linux and most popular 32-bit RTOS. It integrates PCIE bus, DDR3, ROM controller, xISA, I2C, SPI, IPC (Internal Peripheral Controllers with DMA and interrupt timer/counter included), Fast Ethernet, FIFO UART, USB2.0 and SD/SATA controller within a single package to form a system-on-a-chip (SOC).
Everyone knows them, some already have one: a robotic lawn mower! You can purchase them, sometimes they are ‘intelligent’, sometimes they are simply silly. Very often, they are missing an important piece: adding your own ideas to the robot’s ‘brain’. That’s the idea of this project (’Ardumower’): Making a new ‘brain’ freely available for every robot mower in the universe!
During the Maker Faire Rome, I was lucky to get an Intel Galileo. But when I had to use it, it was suddenly clear that it’s not as straightforward as Arduino. I had to resort to desperate measures and do something that really only a very restricted class of noble people do, I had to read the manual.