DFPlayer - Overheat and no switching off
Paul.Paul 2025-05-07 06:35:18 779 Views2 Replies Hello,
I just bought a DFPlayer and connected it to a 8ohm speaker,
I connected a battery of 3.7V, 200mAh
I have put a sample sound on a mini SD card and tested it and it works well. but If I let the battery connected the DFPlayer heatup is this something normal and I just need to put a switch?
(I have just very basic knledge of electronics unfortunatly)
Thanks in advance
Paul
2025-05-07 16:22:10 
ahsrab.rifat
If the DFPlayer gets noticeably hot to the touch, it might damage itself or even pose a safety risk. Until the issue is solved, disconnect it when not in use.
ahsrab.rifat 2025-05-07 09:39:47 
Tonny12138
Make sure all ground connections are properly made.Occasionally, issues with the SD card can cause the DFPlayer to heat up. Try using a different SD card to test.
Tonny12138 
