Bar graph boost meter

[Christo Atanasov]

Hi there,

I decide to make some boost meter with a 7 LEDs and LM3914 and ECU integrated MAP in MAC-05A.

Just wondering has somebody try this?
On which levels put 7 leds? I think MAP signal is 0-5V so I will have 10 levels between 0-5V equals (0.5v step) or I must try to get low end higher.. Let say about 1v instead of ground 0.

 

Happy New Year!

Chris

 

Audi 200 2.1Ti (KG - Engine)