Your local hardware store or garden supply center probably has everything you need to install landscape lighting all around your property. What’s a little less likely is coming out of that situation with fewer holes in your wallet than in your yard. And even then, it’s pretty much guaranteed that any off-the-shelf equipment won’t send you a text message when your landscape lighting isn’t working properly. [Mark]’s landscape lighting system does, though!
Powered by a Raspberry Pi, this landscape lighting system has every feature imaginable. It can turn the lighting on at sunset and turn it off at a set or random time later in the evening. There’s a web interface served from the Pi that allows further user control. The Raspberry Pi also monitors the lighting and can sense when one of the lights burns out. When one does, the Pi uses Twillo to send a text message notification.
There’s not many more features we can imagine packing into a setup like this. Of course, if you don’t have a spare Pi around you can probably manage to get the job done with an ESP8266, or even an old-fashioned Arduino.
[Roy Shilkrot] and his fellow researchers at the MIT Media Lab have developed the FingerReader, a wearable device that aids in reading text. Worn on the index finger, it receives input from print or digital text and outputs spoken words – and it does this on-the-go. The FingerReader consists of a camera and sensors that detect the text. A series of algorithms the researchers created are used along with character recognition software to create the resulting audio feedback.
There is a lot of haptic feedback built into the FingerReader. It was designed with the visually impaired as the primary user for times when Braille is not practical or simply unavailable. The FingerReader requires the wearer to make physical contact with the tip of their index finger on the print or digital screen, tracing the line. As the user does so, the FingerReader is busy calculating where lines of text begin and end, taking pictures of the words being traced, and converting it to text and then to spoken word. As the user reaches the end of a line of text or begins a new line, it vibrates to let them know. If a user’s finger begins to stray, the FingerReader can vibrate from different areas using two motors along with an audible tone to alert them and help them find their place.
The current prototype needs to be connected to a laptop, but the researchers are hoping to create a version that only needs a smartphone or tablet. The videos below show a demo of the FingerReader. For a proof-of-concept, we are very impressed. The FingerReader reads text of various fonts and sizes without a problem. While the project was designed primarily for the blind or visually impaired, the researchers acknowledge that it could be a great help to people with reading disabilities or as a learning aid for English. It could make a great on-the-go translator, too. We hope that [Roy] and his team continue working on the FingerReader. Along with the Lorm Glove, it has the potential to make a difference in many people’s lives. Considering our own lousy eyesight and family’s medical history, we’ll probably need wearable tech like this in thirty years!
Continue reading “Trace Your Book or Kindle with the FingerReader”
[Utpal Solanki] wanted to do some text chatting from the comfort of the couch. He built this wireless chat client that he calls Chatbox using a microcontroller, a character LCD screen, and a keypad that he built himself.
The device communicates via an Infrared emitter and receiver. It pairs up with an Arduino using an IR shield that [Utpal] built. The handheld unit flashes a pair of white LEDs whenever it receives a message from the Arduino. You can then hit the Inbox button and scroll through to read what was received. To reply just type on the keypad the same way you would with a cellphone, then hit the send button to shoot that message back to the Arduino.
On the computer side of things the messages are being relayed to and from the Arduino over a USB connection. Early on in the video demonstration (embedded after the break) [Utpal] shows his Chat Box program communicating via the handheld unit in the same way that other messenger programs work.
Looks to us like he’s built his own non-pink version of what the IM-ME was originally intended to do.
Continue reading “Chatbox wireless IM client”
[Travers Buda] is giving new life to his abandoned childhood toys. He cracked open a set of Family Radio Services radios he had received for a birthday which work up to 2 kilometers apart. With just a bit of extra circuitry he was able to get them to act as wireless modems. The system functions but it looks like it would benefit from some more refinement, including error correction. In the end [Travers] manages to send and receive ASCII based messages at a whopping baud rate of 10.
Anyone who has tried their hand at RPG Maker 1 (or any text input with a controller) knows how difficult it can be typing long paragraphs into the console. [Thutmose] is here to save the day with Kupid 1.0 (2.0 in production). A PICAXE takes ps/2 keyboard input and converts it to a series of d-pad button presses for PS1 and PS2 controllers, providing quick data entry compared to the previously monotonous task.
We’re happy to learn that the source code and hardware is released, meaning it has the potential to be easily adapted to any controller/console.
This is an interesting little toy. A tiny board that can display text on an oscilloscope. The components, or rather just component, is a PIC16F628A. Aside from a power supply, that’s it. It can display 10 characters at a time and, as you can see above, scroll them as well. We don’t really know of a practical use for this, but it would make a nice practical joke tool. If you want some more complicated oscilloscope effects, check out Tennis for Two.