The latest iteration of my #PCB to replace the tail lights in my #EV #Mustang arrived earlier from JLC.
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Ooh, maybe they should ‘slide’ up and down. There’s 100ms here between rows. Perhaps a little slow.
I don’t love the harshness of LEDs. They go so quickly from off to on. I wanted to try and simulate a bulb a bit by having it ramp up/down quickly. Not sure if it would work. But I screwed up the pin assignment on the MCU (pi pico) in this version. So I think I’ll need to respin this board to get PWM working for all segments.
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So, what’s better for nighttime/headlights-on mode? Top and bottom rows permanently on, middle section comes on for brakes? Or middle section permanently on and top and bottom come on for brakes?
#WeirdCarMastodon #opensource #electronics #raspberrypi #RaspberryPiPico #embedded #classiccars
@chrskly
I would be tempted to have a user-selectable pattern where the two outer segments only light up the bottom three rows, and the middle finger (oops) lights up all 6 rows, for use with people who follow too closely? -
@chrskly
I would be tempted to have a user-selectable pattern where the two outer segments only light up the bottom three rows, and the middle finger (oops) lights up all 6 rows, for use with people who follow too closely?@DenOfEarth haha, I hadn’t thought of that. I have three extra inputs, so that’s possible
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Ooh, maybe they should ‘slide’ up and down. There’s 100ms here between rows. Perhaps a little slow.
@chrskly
Top bottom for running lights, middle might be mistaken for brake lights. Or do tri color and use amber for turn signals? -
@chrskly
Top bottom for running lights, middle might be mistaken for brake lights. Or do tri color and use amber for turn signals?@FritzAdalis yeah, think this is the way. The top and bottom are a little more frosted so the light is more diffused.
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@FritzAdalis yeah, think this is the way. The top and bottom are a little more frosted so the light is more diffused.
@chrskly
You could put frosted plastic inside the lens if it doesn't dim it too much.Addressable lights like ws2812 might make it easy, but I'm not sure if they'd be bright enough. I did find https://www.nhtsa.gov/sites/nhtsa.gov/files/tsf811128.pdf, which implies 31 cd might be sufficient (or at least legal in the US) but you might want at least 100 cd.
(If you've already researched this thoroughly, my apologies.)
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So, what’s better for nighttime/headlights-on mode? Top and bottom rows permanently on, middle section comes on for brakes? Or middle section permanently on and top and bottom come on for brakes?
#WeirdCarMastodon #opensource #electronics #raspberrypi #RaspberryPiPico #embedded #classiccars
@chrskly middle on makes me think brakes, so top and bottom running middle brake?
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So, what’s better for nighttime/headlights-on mode? Top and bottom rows permanently on, middle section comes on for brakes? Or middle section permanently on and top and bottom come on for brakes?
#WeirdCarMastodon #opensource #electronics #raspberrypi #RaspberryPiPico #embedded #classiccars
@chrskly I would expect all 3 on for braking and sequence left/right for turning.
not sure about running lights, maybe just all dim?
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@chrskly I would expect all 3 on for braking and sequence left/right for turning.
not sure about running lights, maybe just all dim?
@RueNahcMohr I screwed up the pin assignment on the mcu, so I think some segments are on the same PWM channel. I suppose it doesn’t stop me from dimming all the lights at once though …
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@RueNahcMohr I screwed up the pin assignment on the mcu, so I think some segments are on the same PWM channel. I suppose it doesn’t stop me from dimming all the lights at once though …
@chrskly your controller is more than fast enough to do software pwm without anyone noticing. :]
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