You might think we started the Halloween hacking a bit early, but don’t worry.Although this A doll equipped with a microcontroller can imitate a USB keyboard to input information In the most creepy way possible seem Just like the prank gift you get after participating in someone’s creepy holiday carnival, the creator [Jonathan] It was actually prepared for a friend’s wedding. Therefore, it is not only an interesting piece of hardware, but also a good reminder of the importance of having a wedding registry.
But even from an outsider’s point of view, this seems to be a rather unusual wedding gift (according to the record, the prank involving this “haunted doll” has been a prank between them since they went to school), we can’t help but feel the way [Jonathan] Implemented it. A Digispark powered by ATtiny85 is hidden inside the doll, and there is also a simple USB 2.0 hub, It is said to alleviate some teething problems The small development board has an updated USB 3.0 port. By using V-USB, this allows the baby to enter a message after plugging it into the recipient’s computer.
He could have stopped there now, but [Jonathan] Hope this is an interactive experience. Specifically, he wants babies to show various personal tests to newlyweds, which means accepting user input. He came up with the clever user interface shown in the video below, which responds to changes in the system’s “caps lock” state.
This platform-independent solution allows users to navigate the doll’s menu system by clicking a key, even though Chromebook users there must break the Alt key to play together. This is an ingenious technique for two-way communication between MCU and computer without any client software. It is worth preparing for future non-haunted projects.Also worth a try [Jonathan] Invest in optimizing everything to fit the chip’s trivial 6012-byte flash memory.
By the way, this is a good time to remind readers of us Halloween Hacker’s Day The competition has now started, and the deadline for registration is October 11. If you have any cursed bar mitzvah gifts, you have been doing the finishing touches, and we would love to see them.