Reverse engineering LCD displays with Joey Castillo @Hackaday @josecastillo
Joey Castillo decided that he could more out of LCD displays with a little tinkering, as shared at Remoticon 2021.
Joey’s talk is a great way to learn the skills needed to reverse engineer a typical segment LCD.
Joey got his start hacking on these displays via his Sensor Watch project – a board swap for the venerable Casio F-91W wristwatch, with the project on CrowdSupply. It kits out the 33-year-old watch design with a modern, low-power ARM Cortex M0+ microcontroller running at 32 MHz that completely revolutionizes what the watch can do. Most importantly, however, it repurposes the watches original segmented monochrome LCD.
While segment LCDs are old-school and basic, they’re still a great technology for any low-power project that needs to display some data. After all, just think about how long the average digital wrist watch can last on a single coin-cell battery! [Joey]’s talk is a great primer if you’re interested in taking advantage of these displays, whether in existing hardware or by getting your own made from scratch!
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