BT401 i2s output
AsT 2026-07-25 20:43:16 129 Views1 Replies Hello, I'm new here. Recently, I purchased bt401 (labeled v3) module. The default configuration is DAC version. I searched how to update the module and what I found is that it can update via a storage device. So, can anyone provide any link where I can download the update file. ( Sorry for my English..)
2026-07-29 14:11:27 
Jason.Miao
the BT401 ships with DAC firmware by default, so you'll need to flash the I2S version.
I'd suggest reaching out to DFRobot support directly for the I2S firmware file, since it's not publicly listed on the wiki.
Hope this helps!
Jason.Miao 