Introduction: How to Solder the F3 EVO Brushed Flight Controller

Hi guys,

this is a short tutorial on how to solder the F3-EVO brushed flight controller for micro brushed quadcopter. You find this board all over the internet and in particular in Chinese online shops like Banggood or Gearbest. It's a perfect option for starting your own DIY micro quadcopter.

Step 1: Overview of the Board

Picture of Overview of the Board

The board is full with holes to connect motors, receiver and your all in one FPV camera. The pictures gives you an overview.

  • USB port for connecting the board to your computer and tune Cleanflight, which is preinstalled
  • Battery connection B+ and B-
  • Motor connections M1-M4
  • UART port 1-3 for AIO camera and receiver
  • Buz port for the buzzer
  • DSM for your spectrum satellite

Step 2: Connect Battery Lead

Picture of Connect Battery Lead

  • Solder the black battery lead to B-
  • Solder the red battery lead to B+

Step 3: Connect Motors

Picture of Connect Motors

solder the brushed motors to board:

  • M1: clockwise brushed motor (usually red wire to + pole, blue to - pole)
  • M2: counterclockwise brushed motor (usually white wire to + pole, black to - pole)
  • M3: counterclockwise brushed motor (usually white wire to + pole, black to - pole)
  • M4: clockwise brushed motor (usually red wire to + pole, blue to - pole)

The standard Cleanflight Quad X layout is shown in the picture.

Step 4: Connect the AIO FPV Camera

Picture of Connect the AIO FPV Camera

  • I used the UART 1 port to connect the AIO FPV camera. It provides 5V.
  • Solder the black power lead of the AIO camera to -
  • Solder the red power lead of the AIO camera to +

Step 5: Connect the Receiver

Picture of Connect the Receiver

You have several options to connect a receiver. You can use PPM, SBUS or DSM.

DSM Receiver:

  • Solder the DSM plus lead to 3.3V, the minus lead to GND and the signal lead to RX3,
  • In Cleanflight you need to enable UART3 as Serial RX.

PPM and SBUS Receiver:

  • Solder to UART2, minus lead to GND, plus lead to + 5V and the signal lead to RX2
  • In Cleanflight you need to enable UART2 as Serial RX (see pic)

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