Hi everyone I hope I chose the right place to put this if not sorry. I’m new to arduino projects but I’d like to make an OBDuino for my car. I had posted a similar thread on ecomodder but most of the people there who developed the project are no longer active.
So I’ve been doing research on the project but one of the biggest problems I’ve been running into is that the build instructions are old and the pictures don’t work anymore. Which is a issue when the post says “it should look like this” but the picture is missing.
So far I’ve come up with this
My car info is:
2002 Pontiac Sunfire SE Sedan
4 Speed Auto
VPW (J1850) Protocol
Parts List :
Arduino (I’ll use the Arduino Uno) REV 3
Link → http://www.radioshack.com/product/index.jsp?productId=12268262 ←
LCD I’m still deciding on the size
Will these 2 work? → 220 ohm 1/2W 5% Carbon Film Resistor pk/5 : Resistors | RadioShack.com ←
→ NTE QW151-10 - 1/4W 510 Ohm Metal Film Flameproof Resistor | RadioShack.com ←
Transistor (I only need 1 right?)
PNP Amplifying Transistors (15-Pack) : PNP Transistors | RadioShack.com
Buttons to switch screens
These are normally open
3A 125V SPST Normally Open Pushbutton Momentary Switch : Pushbutton Switches | RadioShack.com
I’m looking at LCDs now I want to use a 4x20 size one if it would work.
I’ve been reading about the OBD cable I’m trying to figure out how to make one for my cars protocol right now I’m not sure though if I need an ELM or not. If you can help me out on that I’d really appreciate it.
Please let me know if I should use different parts like I said before this is my first arduino project so I’m doing as much research as I can but I don’t have any experience to know if these are all correct parts.
I have the links to the project that I’ll post below
Thanks for any help.