i have an issue with my XENSIV PAS CO2 for witch I have no ideas. I read data from sensor by Sensor2Go Kit and GUI downloaded from Infineon site, and the co2 value remains on 1000 - 1100 ppm. But when i connect sensor (without Sensor2Go Kit) to my microcontroller using I2C interface and try to read 0x05 and 0x06 registers the values i get are much higher (e.g. 0x05 gives 0x0c, 0x06 gives 0x1d). Those two concatenated gives 0x0c1d and that is 3101 in decimal.
What can be the reason that those two co2 values (1000 and 3101) are so different? Do I calculate it in a right way?
Thanks for Your help, this is my first time with that kind of problems.
How to calcuation PASCO2 power consumption ?
Condition :From powering turn on 3.3V/12V to turn off , When can get the first real data ? power consumption ?
Is there the reliability specifications of PAS CO2?
Especially, the customer wants to know " Vibration Test" and "Mechanical shock".
What is the minimum time for 3.3V ON to 12V ON in the 3.3V / 12V power-on sequence?
According to AN_2106_PL38_2107_132213, the order is written, but the interval is not described.
Measurement mode configuration register (MEAS_CFG) Is it possible to measure in a time shorter than the minimum measurement interval of 5 seconds in continuous mode when OP_MODE is used in Single-shot mode? ex. 2s
We are planning to control both 3.3V / 12V power supplies to OFF / ON / OFF in order to reduce power consumption, but is it okay to repeat OFF / ON / OFF at short intervals (example: 5 seconds)? Is there any effect on the life of the IC?
I am testing the EVAL_PASCO2_SENSOR2GO in two configurations:
1) I connect the whole kit to the USB port of my PC and I launch the XENSIV software. The software connects to the device on COM4 and reads the CO2 concentration in my room, which is about 620ppm (seems reasonable to me).
2) I have made a custom interface board, which includes a boost converter to provide 12V and a microcontroller (Teensy 3.2) to communicate to the XENSIV™ PAS CO2 sensor directly via I2C. In this case, I talk directly to the sensor board not to the kit. I read the CO2 level using the microcontroller and the Arduino library, which offers .ino example files for single shot measurements of the CO2.
In the second config, I see the sensor is acknowledged via the serial interface and the product ID is read. Also the single-shot measurement example cumpiles smoothly, without errors, but this time the CO2 reading reported are always negative numbers, in the order of "-1240" (I presume ppm).
I wonder if somebody could help in telling me what could be wrong with the second config, as I don't think getting a negative number for CO2 levels makes any physical sense. Regardless of the sign, also a value of 1240 seems way too off from the 620ppm I got in the first configuration.
Any help would be much appreciated.
Hi, I'd appreciate it if you could provide its circuit schematic ! XENSIVTM PAS CO2 Evaluation Motherboard and XENSIVTM PAS CO2 Mini Evaluation Board，Show Less
Does this actually exist? Can I buy it anywhere?
It's a lot more usable with an onboard 12v booster.vs the miniboard
PASCO2V01AUMA2 (not for new design)
De link on de website for the LG-MLGA-14 package points to the LG-MLGA-14-1
An LG-MLGA-14 3D model and a package outline drawing is not aviable on the website.
What are the difference between the LG-MLGA-14 and the LG-MLGA-14-1?