Silicon Probes Record Neural Activity From Brain Organoid

Of all the organs in the human body, perhaps the most difficult to study is the brain, owing to its dazzling complexity and its isolation from the rest of the body afforded by the protective skull and blood-brain barrier. So imagine if a miniature copy of a brain could be grown in a dish from stem cells in the body. With such a technology, the possibilities seem endless for understanding brain diseases and for developing therapeutics quickly.

Using Linux Device Trees for Fun and Profit

How does a computer know which parts it is composed of? What hardware and peripherals are connected? For a desktop computer, many things like storage drives and attached USB devices are discoverable on boot. But for embedded systems, a lot of the hardware is connected via non-discoverable protocols such as SPI, UART, and GPIO. The kernel, which controls the hardware, needs to be told what devices are attached and how to talk to them.