FAQ

SEN0232, What is the operating temperature specification?

userHead JaneYu 2018-10-17 10:35:33 10 Views29 Replies

SEN0232, What is the operating temperature specification?

2024-07-02 14:16:03

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.

userHeadPic JaneYu
2024-06-03 11:56:45

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.

userHeadPic JaneYu
2024-06-02 04:38:38

The Wemos D1 mini is an ESP8266 and has an A0 range of 0...3.3 V.

userHeadPic JaneYu
2024-05-23 17:47:02

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.

userHeadPic JaneYu
2023-10-23 14:18:22

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

userHeadPic JaneYu
2023-10-23 13:58:51

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.

userHeadPic JaneYu
2023-07-13 11:23:51

Hello, Could it work with esp 8266?

userHeadPic JaneYu
2023-06-14 14:56:27

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.

userHeadPic JaneYu
2023-06-13 06:57:16

Hello! I would like to know if its possible to use this sensor whit a wemos d1 mini.
Thank you very much!

userHeadPic JaneYu
2022-12-25 19:48:11

Hi pls give a tutorial how to use it with raspberry pi with code

userHeadPic JaneYu
JaneYu wrote:

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.

2023-03-16 17:13:10
1 Replies
2022-10-23 20:56:47

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?

userHeadPic JaneYu
JaneYu wrote:

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

2022-10-24 14:44:35
1 Replies
2022-10-07 13:39:18

Can the audio waveform be plotted? Or just the decibel level?

userHeadPic JaneYu
JaneYu wrote:

Hi, If you want to derive audio waveforms, you can open the serial port plotter in the IDE to view the waveforms

2022-10-19 16:07:36
1 Replies
2021-12-17 16:29:26

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.

userHeadPic JaneYu
2021-08-27 22:30:51

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?

userHeadPic JaneYu
JaneYu wrote:

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

2024-07-22 19:49:47
1 Replies
2020-05-14 14:29:29

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.

userHeadPic JaneYu
2020-01-18 18:29:12

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

userHeadPic JaneYu
JaneYu wrote:

Hi, I advice that you need to purchase a new one or consult the customer service to send it back to repair.

2020-01-19 10:27:54
1 Replies
2019-05-06 10:54:01

What is your power supply of this sensor? If you used 3.3V, you have to change the VREF to 3.3 accordingly.

userHeadPic JaneYu
JaneYu wrote:

I've set the value to 3.3v, but the data is still incorrect.

2019-05-13 15:37:04
1 Replies
2019-03-22 01:11:38

Can you please tell me in details how to use ADC or some informative link for ADC

userHeadPic JaneYu
2019-02-28 23:41:11

Can i buy this device? It is always out of stock?

userHeadPic JaneYu
2018-10-20 05:27:43

SKU:SEN0232
-40 ~ +85degress. Do not you use it?
Please let me know the product temperature specification.

userHeadPic JaneYu