Search found 255 matches

by Christian_Bylund
28 Oct 2019 18:15
Forum: Lambda Shield for Arduino
Topic: Lambda Shield on Arduino Mega
Replies: 3
Views: 5237

Re: LEDs do not light

Good news, to use the Lambda Shield with Arduino Mega you need to reroute the SPI pins.

See example on our Instagram account.
https://www.instagram.com/p/BvZv4_GAOl2

Thank you.
by Christian_Bylund
23 Oct 2019 17:55
Forum: Lambda Shield for Arduino
Topic: Lambda Shield on Arduino Mega
Replies: 3
Views: 5237

Re: LEDs do not light

Hello,

Could you please take a picture of the set up. Refer to which software you are using. And what sensor you are using.

What is the serial output?

I think we can sort this out.

Thank you.
by Christian_Bylund
01 Sep 2019 22:29
Forum: Lambda Shield for Arduino
Topic: Lookup table for CJ125 in V=8 amplification.
Replies: 6
Views: 9315

Lookup table for CJ125 in V=8 amplification.

I got a request for a lookup table when the CJ125 is in amplification V=8 compared to the standard code V=17. The V=8 mode is more useful for rich applications, the V=17 mode is more useful for lean applications. Here is a conversion table made from the LSU 4.9 data sheet for the V=8 mode: //Lambda ...
by Christian_Bylund
05 Aug 2019 21:34
Forum: Lambda Shield for Arduino
Topic: Lambda GUI not reading
Replies: 28
Views: 42296

Re: Lambda GUI not reading

If anyone runs into the same symptom we have concluded that the problem in this case was a faulty oxygen sensor.
by Christian_Bylund
30 Jun 2019 13:01
Forum: Lambda Shield for Arduino
Topic: Lambda GUI not reading
Replies: 28
Views: 42296

Re: Lambda GUI not reading

Please also let me know your shipping address, send it to christian@bylund-automotive.com and I will ship a replacement Lambda shield for evaluation in parallel. Thank you.
by Christian_Bylund
24 Jun 2019 19:12
Forum: Lambda Shield for Arduino
Topic: Lambda GUI not reading
Replies: 28
Views: 42296

Re: Lambda GUI not reading

The readings are the same. I only experienced the flashing LED problem when I plug in the power jack but not the arduino. Thank you for clarifying. Using the multimeter, when reading ~1010 during operation could you please measure the voltage between the 5V pin and one of the GND pins on the Arduin...
by Christian_Bylund
24 Jun 2019 18:56
Forum: Lambda Shield for Arduino
Topic: Lambda GUI not reading
Replies: 28
Views: 42296

Re: Lambda GUI not reading

dgleason wrote:
24 Jun 2019 16:11
I plugged in the wires & power in that order and experienced the same issues. I also tried using a different Arduino, with the same results.
And with the same issue do you mean that is reading 1010 ADC in open air or that it is resetting the Arduino and flashing the LED's?
by Christian_Bylund
23 Jun 2019 23:28
Forum: Lambda Shield for Arduino
Topic: Lambda GUI not reading
Replies: 28
Views: 42296

Re: Lambda GUI not reading

If I try to plug in the power supply when the USB is not connected, the LEDs on both boards flash about once/second, but do not stay lit. I am not sure if this is normal behavior of the board. I can replicate what you are experiencing when I have the X7 jumper and the 12V power supply connected to ...
by Christian_Bylund
20 Jun 2019 00:00
Forum: Lambda Shield for Arduino
Topic: Lambda GUI not reading
Replies: 28
Views: 42296

Re: Lambda GUI not reading

dgleason wrote:
19 Jun 2019 23:34
Can the board handle 2A? If so, I'll try a higher current power supply.
Yes, no problem. It needs a minimum of 1A so 2A is fine. Just make sure the DC jack is center positive.
by Christian_Bylund
19 Jun 2019 08:28
Forum: Lambda Shield for Arduino
Topic: Lambda GUI not reading
Replies: 28
Views: 42296

Re: Lambda GUI not reading

UA_Optimal (λ = 1.00): 304 (λ = 1.00) UR_Optimal: 176 These values are spot on, thank you. I'm concerned that the power source could be part of the problem. I'm using a 12V, 1A wall plug. However, it takes multiple tries of plugging the jack into the board, and removing and replacing the jumper wir...