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I have been playing with the frequency generator and the PAM8403. Do you add any low pass filtering to the PAM8403 Class D before feeding the ultrasonic transducer? Also, like other contributors I a…
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Hi
Always getting noise. How to remove noise.
I am using esp8266 and PAM8403
I tested with 0.5W 8 (hom) and 3W 4 (hom) speaker.
But it is very noisy.
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hello bro I made a design using, Pro micro usb, AD9833, PAM8403, 40Khz. but my project was not successful I want to ask:
1. I did not find pins 11 and 13 on my pro micro module, then I searched the…
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hi
will it work on heltec wifi kit 32 + amplifer PAM8403 ?
http://esp32.net/images/Heltec/WIFI-Kit-32/Heltec_WIFI-Kit-32_DiagramPinout.jpg
https://ae01.alicdn.com/kf/HTB18vzsaKH2gK0jSZJnq6yT1FXar/P…
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Hello, I'm a beginner to C++. My question is how can I edit the code to adapt it for use with the following components :
MAX9814
PAM8403
And also for the NRF24L01 Antennas as I may need the extende…
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I have no sound when I connect the instructions here
https://github.com/Edzelf/ESP32-Radio/issues/112
I want to try without VS1053
I connect ampliffer to GPIO 25, 26 and gnd - no sound again
ha…
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Hello. Nic project, i managed to implment it on two esp32 DevKitc v4. I am usintg MAX4466 analogic micrphone and PAM8403 amplifier connected to a 3W speaker.
I am using the whole process connected th…
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Hi Ed,
I guess the PAM8403 will be among the most commonly used amplifiers for your radio project. This chip has a mute pin (5) which is active low. Although this pin is not broken out on the board…
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Im using a PAM8403 as amp and it work great except when there is no audio I can hear a small buzz.
I have tried esp-radio and it got a shutdown pin to control it, does Karadio got something like that…
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Hello. In your explanation is said to connect cap 74uF but it is not defined is it electrolytic or normal, block (ceramic) and voltage of it ?
On your pic I see only electrolytic so I suppose it is …