The original Adafruit Motorshield kit is one of our most beloved kits, 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:
The NeuroDreamer Sleep Mask by Cornfield Electronics is a meditation device that flashes colored lights at your eyelids and plays brainwave beats for your ears to help you fall asleep, have lucid dreams, or for meditation. We decided to open one up to see the details of its construction and figure out how it works.
With a logarithmic response over a large dynamic range, this sensor can be used in a wide range of lighting conditions with no re-calibration. From 3-Lux (twilight, or dim indoor lighting) to 55,000 Lux (A sunny day), this sensor can handle it all! The manufacturing process for these chips assures consistency from one chip to the next. Unlike CdS photocells, there is minimal sample-to-sample variation and individual calibration is not necessary.
This is a quick tutorial for our 128x64 and 128x32 pixel monochrome OLED displays. These displays are small, only about 1" diameter, but very readable due to the high contrast of an OLED display. Each OLED display is made of 128x64 or 128x32 individual white OLEDs, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its crispness!
The 1.3" SHARP Memory LCD display is a cross between an eInk (e-paper) display and an LCD. This daylight-readable display has the ultra-low power usage of eInk and the fast-refresh rates of an LCD. This model has a matt silver background, and pixels show up as little mirrors for a silver-reflective display, a really beautiful and unique look.
Feel like someone is snooping on you? Browse anonymously anywhere you go with the Onion Pi Tor proxy. This is a fun weekend project that uses a Raspberry Pi, a USB WiFi adapter and Ethernet cable to create a small, low-power and portable privacy Pi. Plug the Ethernet cable into any Internet provider in your home, work, hotel or conference/event. Power up the Pi with the micro USB cable to your laptop or to the wall adapter. The Pi will boot up and create a new secure wireless access point called Onion Pi. Connecting to that access point will automatically route any web browsing from your computer through the anonymizing Tor network.
Mu is an amazing editor that works with CircuitPython and compatible boards. You can connect to the serial REPL right inside the editor. It also includes a plotter the works with your code to give you a live visual graph of your data! This guide will show you different ways to use the plotter with different sensors. It's time to plot!
Sous vide is rapidly becoming an important cooking technique in many of the very best restaurants in the world. It combines principles of molecular gastronomy with industrial temperature controls to precisely manage the chemical reactions of cooking. We love good food as much as we love science and technology, so we had to build our own sous vide controller. This project turns an inexpensive rice cooker into a precision cooking instrument. Join the high-tech cooking revolution by building your very own sous vide controller!
This document is "The List" - it is the direct result of the overwhelming interest in starting Hackerspaces that hit my inbox after co-founding PSOne and HacDC. When so many people asked for help with the very basics of starting and running a successful Hackerspace, I compiled this list to make it as easy as possible for potential Hackerspace founders to hit the ground running (and not forget anything important). Since then, “the list” has been distributed and shared within Hackerspace culture. It has helped with structuring the success of many Hackerspaces - and hopefully with this update and public release, it will serve as a handy go-to checklist for your awesome Hackerspace-to-be.