This sms-to-LED tutorial shows how to automate the manual button input on this $13 scrolling LED belt buckle with an arduino, and then how to pass SMS messages through it. A USB Host shield connects an android phone that passes SMS messages on. Full code is on the tutorial page.
Our 16X PWM LED FADER board is now completely open source. The firmware (mplab project in C), schematic and layout in kicad, and BOM are all available. Hopefully this project will be a good starting off point for someone needing high resolution PWM control of mosfets, and lots of them.
The brain is a dsPIC33FJ32GS608, which features 16+ PWM outputs with 1.04ns duty cycle resolution. This is used to provide full 16bit control over 16 channels, with a very fast update rate. With SPI, you can send commands fast enough to smoothly fade all 16 channels, although many fades and chases are built in. A simple command / value protocol accepts control from SPI, 5V UART, or RS232.
We’re making a new product called VMeter that’s a USB MIDI Controller Touch Strip and Display. It’s going to be sold through a new site: VMeter.net. In addition to a music controller, it has the potential to be used as a general purpose input touch strip and output meter display. It uses a USB HID interface (like a mouse or keyboard), making it relatively easy to interface with. We’ll be publishing both the protocol and computer-side source shortly. You could even use it with an arduino if you get a USB host shield. There are 8 capacitive touch sensors on the inside, and all the raw values are sent out, making it possible to do pressure sensing and even some limited multi-touch sensing.
We’re happy to introduce a new product, the 16X PWM LED Fader. It lets you control up to 16 channels of high resolution pwm voltage for LEDs or Speed controlled DC motors. It also has a bunch of built in command shortcuts for grouping lights, and making chase and fading sequences.
Features:
