Rainforest RAVEn USB. It looks like an FTDI-type serial port to a host. If you skip their application and just open the port it constantly sends data. https://

Rainforest RAVEn USB. It looks like an FTDI-type serial port to a host. If you skip their application and just open the port it constantly sends data. https://rainforestautomation.com/wp-content/uploads/2014/02/raven_datasheet_1.8.pdf https://rainforestautomation.com/wp-content/uploads/2014/02/... Might be discontinued now, but I think Rainforest's gateway product is a continuation.