I’m calling it MotionMote because it detects motion and because pretty much every type of wireless sensor or Moteino node name ends in “mote“. The possibilities for home security are endless, put this little guy in a corner near a door or on top of a cabinet somewhere and detect them intrudaz! Did I say there’s […]
MotionMote – Moteino motion sensor Read More »
Want a free board? Read below! My regular readers may already know that I never stop working on a project half-way. This is unfortunately the only exception so far, motivated by the fact that an IC isn’t doing what it’s supposed to do, that my thread on the TI support forum was left unanswered for
Tiny NFC reader with a TRF7970A Read More »
I’ve had this planned for a while. The concept is to display the frequency of the UK mains electricity supply. This is meant to be 50Hz, but the frequency actually fluctuates around this value, as a result of changes to supply and demand. If the frequency drops, it’s because demand has risen and/or supply has
Mains frequency display Read More »
This is a long delayed post. I am glad I finally finished making a video for it, and it’s time to introduce SquareWear 2.0 — an open-source, wearable Arduino microcontroller board. At heart, SqureWear 2.0 is an Arduino running at 3.3V and 12MHz. It has built-in mini-USB port for uploading programs, charging lithium batteries, and
SquareWear 2.0 – an open source wearable Arduino Read More »
Unleashing Wearable Device Innovation The Intel® Curie™1 module is the first platform of its kind from Intel—a complete low-power solution designed for companies interested in developing wearable technology solutions. The Intel® Curie™ module packs a robust set of features into its tiny size that are ideal for “always-on” applications such as social media, sports, and fitness activities. This
The Intel Curie Wearable Using Arduino Read More »
UPDATE: adding a light sensor to the device. The idea behind this project is connect some sensors to the Raspberry Pi and put the information available on demand via Twitter requests and put sensor history data online on the web To do that, I used a DHT22 temperature and humidity sensor connected to the Rasberry
Sending weather data via Twitter using Rasbperry Pi and DHT22 Read More »
Typically when electrical engineers wants to make a new circuitboard, they need to send their design files to a manufacturer and wait for it to be produced and mailed back. Hardware startup Voltera aims to expedite this process by putting it in on your desk with its V-One consumer circuit board printer. Winners of the $50,000 TechCrunch “Hardware
Print Your Own Circuit Boards and Reflow SMD Components with the Voltera V-One Read More »
This is a project that I have been working on a few months now and I have completed its build very lately. The main processor used in this project is an Arduino MEGA 2560 which is interfaced with a real time clock called the DS 1307 chip (which gives you the time and date). Both
Make A Arduino Led Alarm Clock Read More »
LTM4625 – 20VIN, 5A Step-Down DC/DC μModule Regulator Features Complete Solution in <1cm2 (Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB) Wide Input Voltage Range: 4V to 20V Input Voltage Down to 2.375V with External Bias 0.6V to 5.5V Output Voltage 5A DC Output Current ±1.5% Maximum Total DC Output Voltage Error Over Line, Load and Temperature Current Mode
Complete 5A step-down Regulator Read More »
Power Stacker is a portable, modular, USB rechargeable lithium-ion battery pack. Stack them together for power hungry projects or separate them for smaller projects with this modular system. The Gerber, BOM, and .STL files are available below. Power Stacker does what other USB rechargeable batteries have failed to do, and that’s the ability to combine
Stackable USB Rechargeable Battery System Read More »
