There’s even a header for SPI making it easier to add custom hardware if necessary. This is a dual-layer board which may not be ideal for your own fabrication process. [Bert Kruger] posted ...

Not according to [techtoys], who has created an Arduino shield that creates an HDMI output from an SPI control input. This is a project that seems to have been around for a couple of years ...

Then, an Arduino board might be exactly what you ... module since they connect to different pins (the Wi-Fi shield to the SPI bus, and the Bluetooth module to the TX and RX pins).