Turtles all the way down, 40 Propeller MCU skyscraper

Why bother interconnecting 40 Propeller microcontrollers one on top of the other? For the power that comes from parallel processing of course! [Humanoido] put the setup together for a total of 1280 ports, 640 counters, and more all running at 6.4 billion instructions per second for the low low price of 300-500$ by our count. The “skyscraper” even comes … Read the rest

Bluetooth bracelet hacked

[Jeffery] hacked the Bluetooth standard in order to use this bracelet as a custom display. He took up our challenge to hack the device when we first saw it back in February.

In order to display his own messaged he looked into how the HFP is implemented in the Bluetooth stack. The details are shared in his readme Read the rest