I am trying to stack a USB Host Shield and a SD Card Shield but it doesn't really work
The USB Host shield I am using: USB 2.0 Host Shield Module for (For Arduino) 903309 2021 – $12.82
The SD Card shield I am using: http://www.miniinthebox.com/catalex-sd-tf-card-shield-expansion-board-for-arduino-works-with-official-arduino-boards_p1141444.html
For the SD Card shield there is zero documentation. The only thing I know that it's using pin 4 for CS.
The work individually when I put them on the bottom but the top one doesn't work.
The SD Card shield is also the only shield with ICSP passthrough header. The USB Host only has a ICSP Female.
Can somebody help me with this?