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The MIMA Display
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The MIMA display board is able to be built with 5mm large leds,or with 3mm smaller leds.
The four large leds are two color, so only four are needed to show the 8 assist and charge levels.
The displays come with a black plastic bezel or frame for the leds, which doubles as an assembly fixture for the Kit version. The display can be mounted in a number of locations, as shown in the photos. At first it seemed that the central location would be good, as demonstrated by Mike 1&2, and Kip 1, but it soon became obvious that the MPG bargraph could be blocked by the display, especially if you are not tall. The Mike 3 mount solves that problem, and because of the countour fit to the dash, it does not even need any mounting attachment, as it just sits in the corner, and stays there. Another advantage to this position is that the Ribbon cable can be routed to the left sharply, so it falls into the crack between the steering wheel shroud and the dash, and is completely hidden.(This cable routing is not shown in the photo). Predrag found another nice spot for his display, under the radio,but had to route his ribbon under the radio, and it is visible. Once he decides if this is the place for it, he can cut a slot for the ribbon to go through the dash, and this will not be an issue. Alex idea 1, is an interesting concept, as he wants to use the blank opening in the heater vent for the leds. Proto 1 was a breadboarded display that I used for a time, and the penny shows how small one could make the display if surface mount leds were used. Lots of possibilities.
The latest offering, is as low a profile as possible, places the mode leds at both sides and one in the middle so that the mode is easier to recognize when it is dark. the display board is at the controller end of a ribbon cable, so the display can be smaller.The wires routing is completely hidden. The only problem, it is a lot of work to build, so a price adder was necessary.
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Low profile discrete display
|  | | | The low profile display |
The finished low profile discrete display has become the display of choice for most new installs. The PC board is separated from the display, so the display is light and easy to mount with a simple piece of foam. No epoxy double stick or other attachment necessary. It is a lot of work to make it though, therefore the additional charges. |
Making the Display housing
For those that want to fabricate their own epoxy display, A display housing is made in a similar way to the joystick mount, with the epoxy putty. One additional requirement is the need to use hot melt as a protectice covering for the resistors,transistor, and led's prior to the epoxy encapsulationto protect the components from damage with expansion/contraction stresses.
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