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marceloherman · 05-18-2010, 09:43 AM

i assembled my elm327.

i dont understand yet. here code.google.com/p/opengauge/wiki/OBDuinoInterface there is the interface with elm327 but the PWM protocol dont is used.

the pins 3, 4, 11 e 13 of the elm327 chip are not used on the diagram above. i must to buy the MC33290 chip too? the PWM will be converted on CAN protocol?

i am lost

but, again, thanks a lot by you help.

05-18-2010, 09:43 AM	#24 (permalink)
marceloherman herman Join Date: Apr 2009 Location: Curitiba - Brazil Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts	i assembled my elm327. i dont understand yet. here code.google.com/p/opengauge/wiki/OBDuinoInterface there is the interface with elm327 but the PWM protocol dont is used. the pins 3, 4, 11 e 13 of the elm327 chip are not used on the diagram above. i must to buy the MC33290 chip too? the PWM will be converted on CAN protocol? i am lost but, again, thanks a lot by you help.