SEN0232, What is the operating temperature specification?
JaneYu 2018-10-17 10:35:33 10 Views29 Replies SEN0232, What is the operating temperature specification?
You have a pot on the module.
You may use another electret mic, but you have to mount it watertight in a 1/2" boom to recalibrate.
Please have a look on the last pages of
https://github.com/rin67630... with instructions on how to harden an electret mic for outdoor use and make it fit to calibrators.
JaneYu Would you be able to share your code so we can check for any minor differences?
Also, we noticed that you might be using the ESP8266, which is an MCU that has a voltage offset even at 0~1V, and is not suitable for use in ADC projects such as decibel meters that require high accuracy. We recommend that you test with an external ADC such as the ADS1115.
JaneYu Hello.
If you are asking about these solder joints, these are the solder joints where we burn the on-board MCU programme during factory testing and for tooling testing, which could be used to get the dBA value, if you think our values are lagging, you can narrow down the delay() parameter of our sample code.
JaneYu Hello, I was wondering if it would be possible to get a Sen0203 with the microphone on the Other side of the board for my project with the sen0232
JaneYu According to our tests, the sensor is able to measure the sound of people talking in our office.
But sorry, we don't have a parameter for microphone sensitivity.
JaneYu Greetings!
I recently conducted a test on the Analog Sound Level Meter using a calibrated dB A measurement device. It appears that the value displayed on the Analog Sound Level Meter is considerably lower than expected. I would like to inquire if there is a method available to calibrate the Analog Sound Level Meter.
JaneYu Hello! I would like to know if its possible to use this sensor whit a wemos d1 mini.
Thank you very much!
JaneYu Hi pls give a tutorial how to use it with raspberry pi with code
JaneYu This sensor is an Analog sensor. And the Raspberry donot have the analog input PIN. So you have to use it with an external ADC.
You could take a look at this one: https://www.dfrobot.com/pro...
And once you get the analog data. You could convert the analog value into the decibel value based on our sample code of this sound level meter.
Hello,
I bought this module and connected it to my ESP32 dev kit as shown in your diagram.
I have the analog out of the sensor connected to D15, I am using your test script and I am getting readings of 100+ dBA from a quiet room. Snapping my finger produces 200+ decibels, what might be the issue?
JaneYu Hi, If you are using esp32, you will need to change the code from VREF 5.0 to VREF 3.3; Also change analogRead(SoundSensorPin) / 1024.0 * VREF to analogRead(SoundSensorPin) / 4096.0 * VREF
Can the audio waveform be plotted? Or just the decibel level?
JaneYu Hi, If you want to derive audio waveforms, you can open the serial port plotter in the IDE to view the waveforms
The measurement range of this sensor is 30dBA~130dBA, and the sound will be weakened to different degrees with different propagation media, so we do not have the range parameter to measure the distance.
JaneYu Hi. Looks very exiting. Is there anyway to add a different microphone to the setup? For instsance for outdoor use etc. And is it then possible to re-calibrate?
JaneYu You can, of course.
More or less every electret capsule will do.
https://uploads.disquscdn.c...
There is a pot on the module to recalibrate.
Here the code for an absolute top-notch sound pressure level software:
https://github.com/rin67630/Sound-pressure-level-meter-Booster
Hello, is it possible to detect frequency of a industrial robot with this module? I want to attatch this module to a robot and detect frequency.
JaneYu Hello,
I unintentionally destroyed the microphone of the board, can I Get some spare microphones to replace?
Also I want to know if i can add about 12 inch wire between microphone and board.
Kindly advice
JaneYu Hi, I advice that you need to purchase a new one or consult the customer service to send it back to repair.
What is your power supply of this sensor? If you used 3.3V, you have to change the VREF to 3.3 accordingly.
JaneYu I've set the value to 3.3v, but the data is still incorrect.
Can you please tell me in details how to use ADC or some informative link for ADC
JaneYu SKU:SEN0232
-40 ~ +85degress. Do not you use it?
Please let me know the product temperature specification.
JaneYu 

