I have a genuine Uno wifi rev2 with a Lambda-shield-2. No problems with two of your examples ...-2-Gui-Example and ...-2-Example (with SD), they're running fine. But ...the third, ..-2-Smartphone-Example doesn't function. The heating doesn't start. What can be the problem? Hello Ries, What is the i...

http://www.bylund-automotive.com/support/images/ADC-datasheet.png Above is the section in the data sheet for everyones reference. Note that 0x3FF (1023) does not represent VREF but VREF - 1 LSB. http://www.bylund-automotive.com/support/images/ADC-reference.png Above highlights this with the 3-bit A...

Hello Henrich, Thank you for the positive feedback. If you need a reference design you know where to order it! Regarding the classic 1023 vs 1024 discussion. The ADC is 10 bits (1111111111) corresponding to the highest value of 1023 , it is still 1024 values counting the 0 value. But the highest val...

I did a quick experiment tonight with CO2. I went from 21% oxygen down to 0% by letting carbonated water decarbonate while measuring the process with the oxygen sensor.

Hello mquilesg, I translated your title, note that this is an English only forum. Perhaps you could bring some background to your question? In the Y 258 E00 015e - Technical Product Information of the Bosch LSU 4.9 sensor they state the following condition in section 5.3: When used in a stoichiometr...

It is hard to troubleshoot your custom design. I took the liberty of uploading the picture for you. Without SPI it is impossible to get any errors from the CJ125 to work with. Do you have any schematic to share? I can't see any main DC capacitor and the connections around D1 does not look right to m...

Kevin I think your heater circuit is inverted. Please share a picture of your board and the components you are using.

When you connect the sensor it gets very hot and continues with this error. Sensor can never heat up until 0x28FF is received from the CJ125 Diagnostic Register so why is it getting very hot? Can you please share a picture of your setup? It sounds like you have a constant supply to the sensor, it w...

I changed the components, but the following message appears: CJ125: 0x283F What would that error be? Thank you for sharing your work with the LSU 4.2. This error is "Ext. heater - Short circuit to ground". - Is your heating off? - It also seems that the pins for LSU 4.2 are not the same a...

The Lambda Shield app for Android is now available on the Google Play store.