hello my friend Thank you very much for this great tutorial. It had many useful tips. Please advise on adding LEDs exactly like the screen behind you or make a new video.
Fantastic! Compiled and downloaded to board. I see a ton of noise in the FFT output browser when no audio is supplied to the microphone. After checking the audio input to the ESP32 (originating in the microphone) I observed 1-V noise pulses at 30 mS intervals. I assume these are related to the WiFi transmitter. Will need to work on power bypassing to reduce the noise. Has anyone else seen this?
I think noise is a common problem with the ESP32, but the cause isn't clear. It's either a physical noise (from the WiFi chip), or the power line has electrical noise. ruclips.net/video/zPd5tm6MtfM/видео.html ruclips.net/video/LCmgfb5HrIY/видео.html ruclips.net/video/BkiDfcDYZFQ/видео.html
Yeah, could be noise from the power supply or usb…. You can reduce it by adding a load to the input like a 1k resistor in parallel with the input port and ground. Also, in the software there is a noise tresshold that you can play around with
WLAN generates a lot of interference in the ESP32. The power supply drops impulsively by several 100mV when WLAN is transmitting. I have tried for a long time to minimise this with external capacitors - without success. The ESP32 cannot be used in applications with WLAN and simultaneous use of ADC or DAC. Therefore I use external ADC's with I2S interface, which are available for little money.
Hi, great video... When trying to install ESP32 web programmer the following message appears in Google Chrome: [Error: Downlading firmware WebSpecElement.bin failed: 404]
hello my friend
Thank you very much for this great tutorial. It had many useful tips.
Please advise on adding LEDs exactly like the screen behind you or make a new video.
Great project. Thanks.
My plessure
Time to transform some fourriers..need to look a bit into that audio stuff..
It’s a world new wordl
the "web programming" part surprised me, I didn't know it was possible to flash remote binaries via web browser!
Yeah it is great indeed
If you have any questions or suggestions, feel free to ask them. Ill try to answer all as best I can. Also check out the element 14 community.
A lot of work in it. For making one myself, I know it :) Good job guys.
How did you know I was going to explain this to my friends? 😂
Fantastic! Compiled and downloaded to board. I see a ton of noise in the FFT output browser when no audio is supplied to the microphone. After checking the audio input to the ESP32 (originating in the microphone) I observed 1-V noise pulses at 30 mS intervals. I assume these are related to the WiFi transmitter. Will need to work on power bypassing to reduce the noise. Has anyone else seen this?
I think noise is a common problem with the ESP32, but the cause isn't clear. It's either a physical noise (from the WiFi chip), or the power line has electrical noise. ruclips.net/video/zPd5tm6MtfM/видео.html ruclips.net/video/LCmgfb5HrIY/видео.html ruclips.net/video/BkiDfcDYZFQ/видео.html
Yeah, could be noise from the power supply or usb…. You can reduce it by adding a load to the input like a 1k resistor in parallel with the input port and ground. Also, in the software there is a noise tresshold that you can play around with
WLAN generates a lot of interference in the ESP32. The power supply drops impulsively by several 100mV when WLAN is transmitting. I have tried for a long time to minimise this with external capacitors - without success.
The ESP32 cannot be used in applications with WLAN and simultaneous use of ADC or DAC. Therefore I use external ADC's with I2S interface, which are available for little money.
Hi, great video... When trying to install ESP32 web programmer the following message appears in Google Chrome: [Error: Downlading firmware WebSpecElement.bin failed: 404]
Hello, your link is dead :(