External LED displays

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seishuku
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External LED displays

Post by seishuku »

Just thought I would share this:
http://youtu.be/BdG7Q3NL6Ss

Started out with an old JAW wideband display that I got from my Brother, it works pretty good... But how about a little more data...

http://youtu.be/pJhWr3sL1ks

Using two 8 digit SPI LED displays from DFRobot.com, displaying RPM, AFR, CLT, and MAT... All driven from the MS2 via 3 spare processor pins and a little bit of code tossed in the user code area of the MS2extra source.

Edit:
Oh and yeah, the RPM is random... I don't have a stimulator, so I'm just manipulating the sensor inputs by touching them.
racingmini_mtl
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Re: External LED displays

Post by racingmini_mtl »

A different take on this idea:

Image

http://forum.jbperf.com/viewtopic.php?f=12&t=1346

Jean
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seishuku
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Re: External LED displays

Post by seishuku »

Cool, nice to see I'm not the only one.
Adafruit displays? Kinda pricey, though they are a little more flexible... The ones I have are $15 each from DFRobot.com
racingmini_mtl
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Re: External LED displays

Post by racingmini_mtl »

seishuku wrote:Kinda pricey
?

They're $10 each except for the blue and white which are $2 and $1 more, respectively. And they use I2C instead of SPI. By the way, the picture makes them look kind of crappy but that's not the case in real life.

Jean
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seishuku
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Re: External LED displays

Post by seishuku »

Well, $15 for 8 digits, vs $10 for 4 digits, that's $1.87 per digit vs $2.50 per digit! :lol:
They aren't SUPER expensive, but if you need a lot of them, it adds up.

Other options would be a nice big transflective SPI LCD, could fit even more info there... Though if it's a graphics display, it would add a bit more software overhead.
seishuku
Experienced MS/Extra'er
Posts: 209
Joined: Tue Dec 01, 2009 5:38 pm
Location: Wisconsin, USA

Re: External LED displays

Post by seishuku »

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