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module red black Customers Reviews

  • Works great and easy to use and mount into panel

    posted by KFandroid

    Easy to mount into panels. Great size. The diffuser on the screen makes the characters a bit dimmed down, and not as bright. Perfect to use in boats or other places because it does not affect your night vision. Intelligent software adjusts the decimal point like: 9.99 to 10.0 volts.
    This voltmeter works prefectly in my boats cockpit to monitor my batterys. Works to what it is ment for.
    Easy to connect to battery etc. It is not much bigger than two AA batteries. Easy to read characters.
  • OK

    posted by sparkyrobot

    All the LED's work, except for one row. I think this was caused by my experimenting while trying to find the pin layout. The product was probably fine. Luckily I do not need all 8 rows for my project. I intend to use this for a 2 digit display.
    I received a 16pin version.By testing I found that it was connected in the following way:Rows (+): pins 6, 2, 7, 1, 12, 8, 14, 9Cols (-): pins 16, 15, 11, 5, 10, 4, 3, 13The bottom text says:pin--45.72--0.8NL23881A
    I would but one of these again if I needed it.
  • 12mm 5mW Red Laser Diode Modules - Black (DC 4.5V)

    posted by evdbdx

    these red lasers (12mm 5mW Red Laser Diode Modules - Black (DC 4.5V)) are very cheap and working ok.thanks dealextreme.
    these red lasers are mechanically not very strong but good enough if handled with some care.
    these red lasers offer very good price/quality.i'm very happy with my order so I immediately ordered twenty more, can't wait for the arrival.
  • Works fine with Raspberry Pi

    posted by treblig

    Pretty neat TFT LCD. Reading is very crisp though you need good eyesight. I use it with a Raspberry Pi using this distro : http://tronnes.org/downloads/2014-01-07-wheezy-raspbian-2014-03-12-fbtft-builtin-firmware.zip (had to change the cmdline.txt file on the RPi to indicate to which GPIO the dc pin is hooked). You'll find some help with adafruit22a instructions (see notro's github.com/notro/fbtft/wiki ). Don't forget to enable SPI on the RPi !You can compile your own kernel with notro's fbtft driver if you know how to do it (I haven't compiled a kernel since 1992 so I just used the distro mentioned above.)
    2.2" is pretty small but it all depends on what you use it for and/or your eyesight.
    Pretty good screen.
  • a good product.

    posted by JakoMeister

    it is the cheapest Mini 8 x 8 Red LED Display i have found. Other products similar like this costs at least 10 dollars. It is easy to use with your DIY projects with arduino or raspberry pi (or another). It works fine. A good product with a great price.
    So you need a lot of wires to plug all the pins, i suggest you, to use a controller like the mcp23017 or something similar like this (with a only mcp23017 you can use both Mini 8 x 8 Red LED Display at the same time).


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