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Figaro TGS5042 Carbon Monoxide Sensor & Op Amp

sharathb last edited by sharathb

In data sheet they have mentioned IC name as AD708 to be used but they have different IC's under its name AD708AQ and AD708BH etc.
which one should i use and many have reported struggles with configuring TGS 5042 CO sensor to get correct measurement, so any suggestions about it,

This'll be the alternate measuring circuit i found on internet which says it prevents polarization as mentioned in data sheet, what is polarization of sensor??
which circuit should i be using?
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@henkoegema said in TinyBME - ATTiny85 + NRF24l01 + BME280/I2C: @Wim-Oosterhof said in TinyBME - ATTiny85 + NRF24l01 + BME280/I2C: I was attracted to the idea of having a wireless hum/temp sensor and so I built this. I prototyped it on a breadboard, and I also soldered it on a PCB. I extended the antenna with a 8.3 cm wire. But I can't get it to work stable. Sometimes it works for many hours and sometimes only for one hour. And then it just hangs. A reset of the at85 sometimes helps, but most of the times I need to power it off and on again. I need it to work reliably for several weeks. Any suggestions ? Have you got any suggestions? Did you get it to work stable? Or have you abandoned the project?
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@bach e01-ml01sp4 is just a wireless module produced by EBYTE based on NRF24 plus PA/LNA chip to improve the signal. If you take off the metal lid you will see Nordic's chips there. Operating voltage means power supply, VCC pin. Digital IO of NRF24 is 5V tolerate. But you do you. @bach said in nano & E01-ML01SP4 gateway: i can't explain it as i don't fully understand it, i followed this tutorial https://maker.pro/arduino/projects/how-to-use-ams1117 Well, someone have misunderstood something, I guess. Any explanation for a resistor between GND pin and ground is if it is adjustable version of this regulator. And even then it would be used with resistor divider, not just one resistor. @bach said in nano & E01-ML01SP4 gateway: and where would you put the 0.1uF ? on the output of ams1117 or in the input of nrf24 ? Next to the cap you are using for NRF24. All caps work together, but for ensuring the best performance you need to place capacitor as close to actual VCC pin of the chip as possible. In your case it's not possible, because you are using prefabricated module, but you get the idea. @OldSurferDude said in nano & E01-ML01SP4 gateway: I believe that what @monte is saying that there will probably be little future support for the nRF24 at MySensors. No. I am saying that current development of MySensors is basically stalled. And I am not sure if anyone is seriously interested in keeping this project updated. @OldSurferDude said in nano & E01-ML01SP4 gateway: @monte is saying to use both capacitors 4.7μF electrolytic and 0.1μF ceramic. No. The practice of using smaller capacitor in parallel with the bigger one is not limited to only electrolytic ones. Please read this answer: https://electronics.stackexchange.com/questions/298798/capacitor-placement In this particular case it won't make much difference if any. But it's a good rule to remember if you are planning on making more complex circuits in the future. I may be wrong about IRQ pin after all. It seems to be used with MY_RX_MESSAGE_BUFFER_FEATURE feature. But I see that some people report problems using it and it only works with AVR.
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Hello here is why it does not compile as you want, the library must be MySensors 1.5.4 I tested today the compilation. that's why include<MySensor.h> and not MySensors.h I wish you a good day with my cordial greetings
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Figaro TGS5042 Carbon Monoxide Sensor & Op Amp

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