User Tools
WTF
WTF (Wireless Toolkit Framework) is a developers' kit produced by JP intended specifically for OpenTag, although potentially other firmware could be used as well. WTF specifies a common pin interface, and it includes common SW tools. Hence, it is a toolkit framework that can be extended to many different MCUs, radios, and common extension modules.
WTF core features:
- 42 pin interface (power, signals, JTAG)
- 32 pin signal interface (2×16 25.4mm DIP)
- Standard pin positions for UART, SPI, I2C, 4x ADC, 4x digital/PWM in, 4x digital/PWM out.
- Mini USB port
- 4 user LEDs
- 4 user buttons
WTF-AA0420 Preview
The WTF is under development currently. The first board to be produced is the WTF-AA0420. The “AA” means that it is a CC430 MCU and CC430 radio. The 04 means 4KB SRAM, and the 20 means 32KB Flash (20h = 32d). I'm having the prototype boards produced in March. Below is an image of the board, as has been compiled from gerbers sent to the prototyper. The actual board dimensions are 28x68mm, so this image is probably going to display bigger than it is in reality. 28x68mm is pretty damn small.
Anyway, you can see that basically all the GPIO pins of the CC430F5137 are brought-out to the edges (ports 1, 2, and 3). In addition, there is JTAG on the bottom left, and you can actually use the JTAG pins in the DIP form, as they are brought-out to the edge (the inner row allows compatibility with the normal MSP430 JTAG tools). If you look closely, you can see the 5 buttons and 5 LEDs.
Manufacturing and Distribution
The WTF will be licensed under a Creative Commons Share-Alike license (similar that used by Arduino).
- The design files, manufacturing notes, and bill-of-materials will be made available.
- You must include information on your product that it uses WTF, via a boilerplate logo.
- You can bypass the above requirement by obtaining written, special dispensation from the creator, JP Norair.
- Said special dispensation will involve a modest licensing fee, or some form of mutually agreed in-kind exchange.
If you are interested in manufacturing and/or distributing WTF kits, please contact JP.
