DFPlayerMini autostart
Fulvio.Toussan 2025-08-30 03:41:51 181 Views1 Replies Hi,
can someone suggest me a way, to autoplay a standalone DFPlayerMini, when it is powered on ? I grounded the ADKEY1 with no success. The same thing connecting the pin ADKEY1 with the USB - pin.
Thanks to anyone who wants to answer me.
2025-09-03 01:34:37 
ahsrab.rifat
You can use a momentary push button that normally triggers ADKEY1.
Add a small capacitor (like 10 µF) between ADKEY1 and GND to briefly pull the pin low when power is applied.
This simulates a short button press right at power-up, triggering playback.
You may need to experiment with capacitor value to ensure the DFPlayer detects it as a press (~100–300 ms pulse).
ahsrab.rifat 
