Tiny Arm Processor and FPGA that fit inside of a USB Socket

 Tim 'Mithro' Ansell, a busy guy, has come up with a couple of tiny circuit board designs shaped like a USB plug, so tiny that only 4 small pads (that might be usable a capacitive switches) stick out of the USB socket.


Too busy to code applications for the Tomu stealth dongle using a Silicon Labs EMF32, 25 MHz ARM Cortex M0+ processor with 54K flash and 8K ram, he gave away a couple hundred boards to the creative crowd at the 2018 Hackaday Superconference in order to inspire coding contributions.

Tomu

Tomu is offered at CrowdSupply for $30,  2 for $35,  5 for $65.

It could be programmed to preform dongle tasks good or evil, like as a Universal 2nd Factor Authentication Key (U2F)


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  A second design fitting the same footprint that he came up with is the Fomu a tiny FPGA board, which he passed on to a fellow in Singapore who is offering it on CrowdSupply for $45, due to ship ship Jun 30, 2019.
 The Fomu uses a Lattice ICE40UP5K FPGA with 5280 Logic Elements, 660 Logic Array Blocks,  and eight DSP blocks with 16x16 bit multiply, and a 45 Mhs clock.


 We may have to wait to see what applications, that make sense running as a PC accessory, become available.  You can configure it to emulate a new Risc-V open source processor, which in turn can run python.      (a few of these might add significant processing power. plugged into a Raspberry Pi)
Fomu



Tim Ansell's talk at Hackaday



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