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AVR-USB Remote Sensor

AVR-USB Remote Sensor

RemoteSensor is a more advanced example for using Objective Development firmware-only USB driver for Atmel AVR microcontrollers (AVR-USB). It is a wireless thermo- and hygrometer with an USB port on the receiver. You can draw fancy diagrams of temperature and humidity for up to 16 wireless sensors.
RemoteSensor is a more advanced example because it utilizes an interrupt endpoint to indicate to the host when new data arrived, demonstrating how AVR-USB handles a second endpoint. The receiver part is basically a serial to USB converter with special processing for the wireless protocol such as data integrity checks and data block buffering.



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The entire system consists of the wireless sensors based on the low cost ATTINY26 microcontroller, the receiver running avr-usb on an ATMEGA8, Unix host software based on usblib which logs the measured data to a file in CSV format and a PHP script which integrates diagrams of the data into a web page:

If you really need to run the host side on Windows, you can compile it with minGW and libusb-win32.

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