AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Flipclock wordpress stretched8/6/2023 In order to synchronise the mechanism with the electronics, the unit could have been driven to advance a minute at a time, but since every hour would need sixty pulses, this could take a while given the limited speed at which that could be done reliably. Minute advancements were effected by driving the clock’s 24V electromagnet with a DRV8871 motor driver IC, the power supply for which was generated from the USB supply via a TPS61041 boost converter. Using some strategically-placed magnets and hall effect sensors, the status of the internal mechanism could be determined. An STM32G031 runs the show, with a few push buttons and a SSD1306 OLED display forming the UI. wanted autonomy, and came up with a solution to make the thing fully adjust itself automatically.Įlectronics-wise, initial prototyping was performed with a Nucleo 32 dev board and a pile of modules, before moving to a custom PCB designed in Altium Designer. Since the clock requires a single pulse-per-minute in order to track time, the simplest track often followed is to open the back, set the correct time manually by poking the appropriate levers, and then let an external circuit take over clocking it. That sounded like a challenge, and the resulting hack is a nice, respectful tweak of the internals to bring it into the modern era. Was perusing an antique shop in Bologna, and came across a nice example of a late 1950s timepiece, in the shape of a Solari Cifra 5 slave clock, but as the shop owner warned, it could never tell the time by itself.
0 Comments
Read More
Leave a Reply. |