DF2301Q Is not responding
MarkR 2026-07-30 09:19:20 44 Views3 Replies I had the Voice Recognition working before going on vacation with the built-in words. When I cam back it is no longer responding to the wakeup word “Hello Robot”. The ASR LED does not light up.
It does not matter if I have the I2C wires connected. I supply power/ground to it (5v or 3.3v) with nothing else hooked up and it says “You are welcome to use the voice recognition assistant". It no longer responds to “Hello Robot”. I have not changed the wakeup word.
Did I gain an accent it does not like? LOL
With the I2C connected the I2C scanner sees it but nothing happens for the wakeup word. The ASR LED does not light.
I have power cycled it many times with I2C connected and not connected.
What can I do to fix this?
After a little more testing
void setup()
{
byte error;
byte address=0x64;
Serial.begin(115200);
Serial.println("In Setup()");
delay(6000);
Wire.begin();
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error==0)
{
Serial.print("I2C detected at 0x");
Serial.println(address, HEX);
}
else
Serial.println(">>> I2C not detected <<<");
while (!(asr.begin()))
{
Serial.println("Communication with device failed, please check connection");
delay(3000);
}
Serial.println("Begin ok!");
//asr.setVolume(7); // 1-7
//asr.setMuteMode(0); // 1=mute 0=unmute
asr.setWakeTime(120); // 0-255
Serial.print("Wake time: ");
Serial.println(asr.getWakeTime());
asr.playByCMDID(1);
Serial.println("Exit Setup()");
}
Serial Monitor Output:
In Setup()
I2C detected at 0x64
Begin ok!
Wake time: 120
Exit Setup()
I get “You are welcome to use the voice recognition system”
Then “Yes, I am here”
The blue ASR LED is lit.
And then it times out after 2 minutes and says “I'm off now”.
It does not recognize any commands I say when the ASR LED is lit or when it's off “Hello Robot” does not work.
It acts like the mic is turned off.
Help! I'm out of idea's at this point.
MarkR First, check the two tiny mic holes on the module aren't clogged with dust
If that's not it, hook it up via I2C and try running asr.playByCMDID(1) in your setup — that forces it into wake-up state directly, and if the blue LED lights up then you know the ASR chip is good and it's just the wake-word mic path acting up. From there you can also try asr.setVolume(7) to crank it up and asr.setWakeTime(20) just to rule out any weird config drift.
The library also has a resetModule() function if you're using UART mode, which is worth a shot if the I2C tricks don't help. Good luck, hope you get it talking again!
Jason.Miao What tiny holes are you talking about?
I thought the mic was one of silver pieces with the black top.


