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DIY Wideband WBO2 AFR Gauge

Posted: 12 Mar 2020 15:04
by Christian_Bylund
From the DIY Wideband AFR Gauge on YouYube
Adrian Adrian from YouTube wrote:What is the value of the resistance in the capacitor? THANKS
The RC-filter in the video uses a 220 µF capacitor. I believe the resistor was around 1.5 kΩ. I am sure you can tune it for faster response, I used parts available to me. Not sure if you are looking for the ESR?
Adrian Adrian from YouTube wrote:A question The resistor is located on the green wire or the black wire?
The green wire in the video is connected to the resistor in series as can be seen in this schematic. Red is 12V (VIN) to power the gauge. Black is ground.
Image

Re: DIY Wideband WBO2 AFR Gauge

Posted: 19 Jun 2020 22:22
by wolf
Solution for C and R in SMD...
Image
https://ibb.co/m86rwG9

Re: DIY Wideband WBO2 AFR Gauge

Posted: 21 Jun 2020 15:33
by Christian_Bylund
wolf wrote:
19 Jun 2020 22:22
Solution for C and R in SMD...
Nice mod wolf!

I future proofed your photo. I hope you don't mind.

Re: DIY Wideband WBO2 AFR Gauge

Posted: 21 Jun 2020 17:01
by wolf
hello Christian,
np, furthermore I brigded the 2 "Diodes for the Stupid" on the Arduino and LambdaShield.. +0,7V are the result...

Re: DIY Wideband WBO2 AFR Gauge

Posted: 30 Jun 2020 22:27
by DaveK
Hi Wolf,
nice job.
Looks very neat and effective.
Regards
Dave.