Sensor Data Acquisition with 32 bit ARM processor

Job ID: 31239789

Budget: $30 – $250 USD

I have a project where I need to Acquire data from a number of sensors of the same kind using the SPI protocol
Digital Logic-circuitry has to be design between the microcontroller and the sensors given that the numbers of sensors is about 25.
The goal is to use as few pins from the microcontroller and as few SPI buses.