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This summer I bought a small, cheap motor scooter (EU small motorcycle class) for local journeys, as a contribution towards slowing climate change. My 4x4 Vogon constructor ship* sits unmolested in the driveway most of the time now. The problem is that the scooter speedometer is both wildly inaccurate and inconsistence, and it has no trip meter, and the fuel gauge equally useless, and there is no clock. The fuel gauge shows full when the tank is full, but half full after using less than a third of a tank, and then empty when there is a good 40% left.
No problem! Out with the Android 'phone, wake up the brain, and roll my own dashboard - GPS for speed and distance, and with fuel consumption calculated from distance and time to cover it, logging starts, stops, and acceleration after stops to determine the type of driving - urban traffic, normal urban or open road. On testing, it worked well, and the calculated fuel consumption was within 1% of actual consumption.
The problem is - in Cyprus sunshine, no matter how I orientate the 'phone holder, it is impossible to read it from reflections and glare - and if I am wearing light coloured clothing it gets worse. Now, some time ago a cyclist was telling me that the latest bike computers consisted of an Android program using Bluetooth to update an LCD display on the handlebars - and LCD screens are easily visible, having tested it with a handlebar mounted clock and thermometer on the scooter.
What I want is to get hold of these Bluetooth LCD display device, together with the appropriate API so I can drive it with the functionality I have already built. I have Googled, Bingled and DuckDuckGoed to my heart's content, but so far no joy.
Can anybody source one of these things? I would really like to get a reliable dashboard before I start getting speeding tickets and/or running out of petrol miles from anywhere. It just needs four lines for speed, time, trip and fuel %.
Pretty please! 
* Vogon constructor fleets were tasked with destroying planets - ostensibly that obstructed a new space highway, but I think they just did it for fun.
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Check out waveshare.com - lots of cool stuff.
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Thanks for the link. I how just spent a cool hour browsing their multiple goodies, but unfortunately not what I am looking for, which is the old style LCD where characters are made up from dark grey bars on a light grey background.
https://www.sencor.com/getmedia/96c58684-6859-4398-bb9a-63ae8c54f13f/SWS25BS.jpg.aspx[^]
Comme รงa!
I have one of those sitting on my desk right now, and it is the only type of display readable in bright sunlight.
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Purchase an anti glare screen protector for your phone?
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Tried it! I even bought a non-reflecting case, but it was a bust - it just glared enough to obscure the screen, although it did reduce the reflections.
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Thanks for that - that is probably what I shall end up getting. If it can store and recall to the screen the trip distance, then I can use it as a fuel gauge - I know pretty accurately how far I can go on a full tank, as I have kept fuel/odometer records since I bought the thing. I would then just have to zero it on filling. It is likely that it would store it, as most of the cyclists I know ride somewhere, stop and eat/drink, and then cycle back. At least that particular machine doesn't clutter up the screen with cardiac data etc.
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Text to speech. A button for a readout shoutout.
"Before entering on an understanding, I have meditated for a long time, and have foreseen what might happen. It is not genius which reveals to me suddenly, secretly, what I have to say or to do in a circumstance unexpected by other people; it is reflection, it is meditation." - Napoleon I
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Too much ambient noise - exhaust, engine noise, wind noise, all while wearing a helmet, would make it inaudible. Wearing headphones would be an option, but they are very uncomfortable under a helmet, and tend to make other road sounds inaudible.
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I suspect update time on these (typically appreciable fractions of a second) is way too slow for a realtime display.
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This also may be useful for local trips. As for a dashboard I guess it will have to strap to your hand or arm unless Google is still selling their glasses.
https://shiftrobotics.io/[^]
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I wonder if a privacy screen protector would help.
Sample[^]
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It's certainly worth a try - I'll check out if one is available for my Cat phone.
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If you can find a suitable LCD with eg I2C or SPI connection (on eg Amazon), it's pretty trival to turn it into a Bluetooth-connected display with an Arduino Nano BLE (or similar). Depends whether you're a bit of a DIYer.
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Nice idea - but well beyond my paygrade! 
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Do you bring your towel on each trip?
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Of course - I am a hoopy frood! 
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You could look for e-ink devices running android. There are a few. E-ink is also perfectly visible in sunlight.
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Thanks - I didn't realize e-ink displays had reached the phone market yet! Definitely worth checking out.
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#Worldle #281 4/6 (100%)
๐ฉ๐ฉ๐ฉ๐ฉ๐จโฌ
๏ธ
๐ฉ๐ฉ๐ฉ๐ฉ๐จโ๏ธ
๐ฉ๐ฉ๐ฉ๐ฉ๐จโ๏ธ
๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ๐
https://worldle.teuteuf.fr
"A little time, a little trouble, your better day"
Badfinger
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Wordle 498 3/6
โฌ๐จ๐จ๐ฉโฌ
๐จ๐ฉโฌ๐ฉโฌ
๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ
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Wordle 498 4/6
โฌโฌ๐จโฌโฌ
โฌโฌโฌโฌ๐จ
๐จ๐ฉ๐ฉโฌโฌ
๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ
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Wordle 498 4/6
๐จโฌโฌโฌโฌ
โฌ๐ฉโฌโฌ๐จ
๐จ๐ฉ๐ฉโฌโฌ
๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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โฌโฌ๐จโฌโฌ
๐จโฌโฌโฌ๐จ
๐จ๐ฉโฌ๐จโฌ
โฌ๐ฉ๐จโฌ๐จ
๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ
Life should not be a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming โWow! What a Ride!" - Hunter S Thompson - RIP
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