Quote from: Peter R on May 01, 2014, 11:12:27 PM

Quote from: telepatheic on May 01, 2014, 10:54:13 PM

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does anyone have bitcoind running on an ARM processor?

People have got it running on raspberry pis.

Thanks. I do know about the raspberry pis, but I'm thinking even smaller: a tiny little custom board with only the bare minimum hardware required to run bitcoind. Perhaps the ARM processor could still run linux, or perhaps in the future we could write a version of bitcoind that implemented its own simple OS (as is commonly done for DSP projects).

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The amount of memory (RAM) you require is the main problem.

I suppose you need enough RAM to pool the unconfirmed transactions, right? A 64 MB chip could hold around 100,000 TXs. Here's a 64 MB SDRAM chip that is only 6mm x 8mm in size and costs about $1.50: http://www.digikey.com/product-detail/en/AS4C4M16S-6BIN/1450-1077-ND/4531924

bitcoin QT can sometimes use upwards of 1 GB of RAM.