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| life_hacks:lights-leds [2025/11/02 21:54] – [hybrid dimming] admin | life_hacks:lights-leds [2025/11/17 14:19] (current) – [PWM] admin |
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| === Strains on eye+brain / Epileptic === | === Strains on eye+brain / Epileptic === |
| It puts a strain eyes and brain having a low PWM flickering light source, especially if the spectrum is bad too - causing headaches and dry eyes. Epileptics are (even more) sensitive to fast&bright light changes - no wonder [[media#warningstoday_s_media_world|there are warnings on games and movies for a reason]]. Keep aware of what light sources you use. If no analog dimming: The faster the PWM-flickering the better. See [[https://notebookcheck.com]] for LCD panel reviews in notebooks with frequency measurements of PWM backlight (don't forget to filer out TN panels (they suck), go for IPS or OLED). For LCD Panels themselves search panel model on [[https://www.panelook.com/]]. \\ | It puts a strain eyes and brain having a low PWM flickering light source, especially if the spectrum is bad too - causing headaches and dry eyes. Epileptics are (even more) sensitive to fast&bright light changes - no wonder [[:media#warningstoday_s_media_world|there are warnings on games and movies for a reason]]. Keep aware of what light sources you use. If no analog dimming: The faster the PWM-flickering the better. See [[https://notebookcheck.com]] for LCD panel reviews in notebooks with frequency measurements of PWM backlight (don't forget to filer out TN panels (they suck), go for IPS or OLED). For LCD Panels themselves search panel model on [[https://www.panelook.com/]]. \\ |
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| FYI: See [[https://www.infineon.com/cms/en/product/power/lighting-ics/dc-dc-led-driver-ic/ild8150/|Infineon ILD8150,]] a hybrid dimming constant current LED driver IC. \\ | FYI: See [[https://www.infineon.com/cms/en/product/power/lighting-ics/dc-dc-led-driver-ic/ild8150/|Infineon ILD8150,]] a hybrid dimming constant current LED driver IC. \\ |
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| | ===== TODO: write about ===== |
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| - Adressable LEDs: 2wire [[https://cpldcpu.com/2022/01/23/controlling-rgb-leds-with-only-the-powerlines-anatomy-of-a-christmas-light-string/]] and [[https://hackaday.com/2022/01/31/reverse-engineering-a-two-wire-led-strip-protocol/|its hackaday.com entry]] [[https://hackaday.io/project/183709-powerline-controlled-led-strings|hackaday.io]] \\ | - Adressable LEDs: 2wire [[https://cpldcpu.com/2022/01/23/controlling-rgb-leds-with-only-the-powerlines-anatomy-of-a-christmas-light-string/]] and [[https://hackaday.com/2022/01/31/reverse-engineering-a-two-wire-led-strip-protocol/|its hackaday.com entry]] [[https://hackaday.io/project/183709-powerline-controlled-led-strings|hackaday.io]] \\ |
| - more addressable LEDs [[https://cpldcpu.com/category/reverse-engineering/]] \\ | - more addressable LEDs [[https://cpldcpu.com/category/led/]] \\ |
| | - candlelight playback: [[https://petemills.blogspot.com/2012/02/attiny-candle.html]] -> writeup with LED array/white colour temps \\ |
| | - LED tricks [[https://learn.adafruit.com/led-tricks-gamma-correction/the-quick-fix]] \\ |
| - nodimming vs dimming MCU \\ | - nodimming vs dimming MCU \\ |
| - dimming in driver vs dimming on signal for lightbulb-MCU to translate it to PWM level \\ | - dimming in driver vs dimming on signal for lightbulb-MCU to translate it to PWM level \\ |
