PC Configuration software for the WSPR -TX Mini, WSPR-TX_LP1 and the WSPR Desktop transmitters
PC Configuration software for the Frequency Calibrator
Windows driver for USB chip CH340.
Usually only needed for Windows XP. Windows Vista, 8.0, 8.1 and 10 have built in driver.
Arduino firmware for WSPR Transmitters
Precompiled Hex files
Using Xloader to reprogram your WSPR Transmitter with a Hex file
Use Xloader to reprogram your WSPR transmitter with one of the Hex files above.
In Xloader do this:
Pick the hex file you have downloaded.
set the Device to the alternative shown in the image above.
Pick the correct Com port that the WSPR transmitter is using.
Click the Upload button.
After about 15 seconds your WSPR transmitter will be running the new firmware!