notes on #low-power #electronics design (powered by #NFC)
on 02026-04-04microscope #video of Sharp #memory-LCD #low-power #LCD #displays #hardware
on 02025-10-13"Shineworld" may be the actual manufacturer of #Osptek and #good-display’s #LCD #displays. #electronics #hardware #low-power
on 02025-10-13other #low-power #Osptek #LCD #displays: “2.9 inch IPS SPI Interface 8 color TFT Display”, YDP290H003-V3, 210×480, 31×71mm, 2.8V, 14.3μA, but this one has 8 colors! #electronics #hardware
on 02025-10-13#Osptek (Osprey Technology of Taiwan, Yuying #LCD) is a different manufacturer of #low-power #electronics #displays #hardware; this one, model YDP420H003-V3, is 300×400 pixels, 64×85mm, 2.8V, 30μA. “4.2 inch IPS SPI Interface R/B/W Reflective TFT Display.”
on 02025-10-13#good-display #low-power #electronics #displays #hardware #pricing: US$6.89 for 384×168 and ≈80μW active-matrix monochrome reflective TFT from #good-display.com
on 02025-10-13320×240 95×75mm #memory-LCD for US$75.22. #low-power #displays #hardware #electronics #pricing
on 02025-10-13#memory-LCD #low-power #displays #hardware, with a very nice faceted database query thing: the left margin is an accordion with a section for each field and a checkbox for each value of that field, while the main display area has a card with name-value pairs for each selected record. Apparently they currently have an “LS044Q7DH01” that’s 4.4" (95×75mm), 320×240 (“QVGA”), 100μW hold power, 600μW 1Hz update power. It costs US$75 at Digi-Key! #electronics
on 02025-10-13#EEVblog forum about the μTimer project, where he is going to use #low-power #LCD #displays from #good-display #electronics #hardware
on 02025-10-13#EEVblog #video about #low-power #LCD #displays (like 14.3μA at 3.3V, up to 25μA during updates, 2.9" diagonal and 384×168) and why he prefers them to #e-ink: e-ink takes tens or hundreds of milliamps for a second or two to update. And service life is only 5 years or 10 million switches. He’s going to try the nice high-resolution ST7305-based #good-display.com (Dalian Good Display Co., Ltd.) reflective active matrix TFT LCD, even though the MOQ is 1000, because they sent him a demo board. It’s a nice high-contrast black and white and a very wide viewing angle despite (I think?) not being #memory-LCD. @mikeselectricstuff says the ST7305 datasheet says it supports up to 30Mbps over SPI. @afreestone101 says that if you peel the polarizer layer off the memory LCDs, the black color becomes mirror shiny. #electronics #hardware
on 02025-10-12