EU1KY its fb Antenna Analyser project the software is still further developed The latest fw 040 KD8CEC offers even FT8 and other digi modes TX Will need i2c GPS clock and the frequency has to be corrected in the 200Hz window for WSPR STM32F746G Discovery board used in EU1KY A.A. Nice but some boards have a short circuit issue with JP2 external 5V supply. The soldering of this JP5 pins caused short to mass. The jp2 solder pad above has an extreme smal isolation gap, just a few 0.01 mm ! And the mass plane around it has a small edge of the mask uncovered ! Almost impossible to avoid solder bridges. Both of my Discovery board's suffered short circuit right out the box. I heard of at least 2 other cases. This is a weak spot, i would say a design flaw....
Ham radio in JO33hg31 53.15N 6.35E