F4 Brushed Flight Controller (Frsky Rx / No RX)

 Update of the F4 Brushed Flight Controller (Frsky Rx + OSD) Since the firmware is the latest  Betaflight 3.4.1, SPI Frsky D16 connection works well in this F4 flight controller.  The position of the BOOT pad on the latest F4 Brushed Flight Controller is changed to near the BIND button.  Note: If you are using EU-LBT firmware radio controller, you might find that you can't bind successfully to F4 Brushless FC. Here are the solutions we provide for you. Thanks to Sebastian Abramowski for giving us the important feedback about binding to EU-LBT firmware radio controller. Here is a review video made by Mr ShutterBug. (The FC that Mr Shutterbug reviews is the original version, the position of the BOOT pad is different from the latest version) A smooth and thrilled flying in the forest and detailed explanation of F4 brushed fc. BETAFPV F4 brushed FC board bring a new era in FPV whoop technology. STM32F411 100MHz high performance MCU, 30A lower resistance MOSFETs, SPI Frsky Rx, Build-in B