Transparent Wireless Communication

Wireless & IoT
1

I am trying to send SPI data from a digital accelerometer to a system development board that plugs into the USB port of my PC. I have some Labview code that uses that data once it is at the SDP.

I’d like to drop a transceiver in here now and have the two ends not know the difference. The data rate set by SCLK is 1kHZ however I am capable of slowing that down to 500Hz if need be.

I have 4 signals that matter. three run from SDP(Master) to XL(Slave) and one the other direction.

CS - chip select →

MOSI - Master Out Slave In →

MISO - Master In Slave Out ←

SCLK - Clk (determines the data rate) →

This feels like there should be a near off the shelf solution

2

There are expensive SPI to serial, SPI to ethernet.

To keep cost low, you can use an Arduino and program it to interface via SPI. It’ll be quite a project.

3

There is an I/O repeater “app” for the 2.4 GHz Pololu Wixel modules that may do what you want. They are short range but extremely reliable up to about 10 meters. http://www.pololu.com/product/1339