Direct serial communication

JamesC · Post by **JamesC** » Sun Oct 18, 2009 1:15 pm

Is there any documentation covering serial communication with the MJLJ? For instance getting the RPM etc manually

I had the idea of interfacing an Arduino and an LCD with it - could be used to show RPM, temp (from aux) etc etc

James

Spockie-Tech · Post by **Spockie-Tech** » Thu Oct 22, 2009 1:50 am

I'm working on a similair thing at the moment

I just got my I2C controlled Nixie Tube display that I'm going to use for RPM display running, and I have a 20x2 OLED (easier to read than LCD in sunlight) for displaying Advance and other parameters, also running via an I2C interface chip to minimise use of IO lines by the LCD.

The Serial Spec is detailed on the Wiki here
http://autosportlabs.net/MJLJ_V4_Downloads
in the "Serial Communication API Specification" at the bottom of the page.

Note that is for the V4 board. If you have a V3, there is a seperate page for that.

Let me know how you go, maybe we can share some code

regards

Brett

Post by **brentp** » Thu Oct 22, 2009 4:42 am

Brett,

Oh- fun. I do want to see pics of that. keep us posted.

And thanks for posting the link to the API specs.

Thanks,

JamesC · Post by **JamesC** » Thu Oct 22, 2009 7:51 am

Wow that is awesome - it will be so easy.

It could actually be very easy to make a standalone unit to tune the MegaJolt - just lots of code! A simple one that modifys the current cell would be easy enough but difficult to use.

Thanks - and I'll let you know how I get on.

James

Spockie-Tech · Post by **Spockie-Tech** » Mon Mar 29, 2010 1:21 am

Hi Brent and others.

I finally got around to doing a powered-by post with the Megajolt Nixie Tacho !

details here - http://www.autosportlabs.org/viewtopic. ... 3866#13866

regards

Brett