Shared Projects by TimJC

Please check out R1.4

IR transponder for multirotor (drone) racing. The hole in the board is for cable strain relief. This board has not been tested.

Parts to populate each board:

• ATTiny85 SOP8

• MMBT2222A

• 56Ohm 1206 Resistor

• 330Ohm 1206 Resistor

• Infrared 950nm LED LD274-3

• 26AWG Servo Lead

Helpful:

• SOP-8 programming clip

For more informaiton visit:

• EasyRaceLapTimer.com

• RCGroups.com thread

Through hole version

Please check out R1.1

IR transponder for multirotor (drone) racing. The hole in the board is for cable strain relief. This board has not been tested.

For more informaiton visit:

• EasyRaceLapTimer.com

• RCGroups.com thread

SMD version

36mm Multirotor PDB

Ground terminals are located in the corners, and high current items (ESCs) should be soldered to the side with the minus symbol (-). The exposed ground pads on the opposite side of the board should only be used for low current draw applications (e.g. video equipment, 3.3/5/6V UBEC, LEDs).

Positive terminals are located on the sides of the board, and high current items (ESCs) should be soldered to the side with the plus symbol (+). The exposed positive pads on the opposite side of the board should only be used for low current draw applications (e.g. video equipment, 3.3/5/6V UBEC, LEDs).

The pin headers are added to allow the connection of a 5V UBEC to the pads above the cut out. The pads above that allow for ground, +V (~12v on 3S) and 5V out to power FPV cameras and/or video transmitter. The ground and +V pads at the bottom of the board are for supplying battery voltage to your flight controller for voltage monitoring (low battery alarm).

30.5mm M3 mounting holes for 36mm flight controllers like Naze32, Flip32, CC3d, etc.

Not compatible with 50mm FCs, like KK2.

For an option with less exposed solder pads, please see revision 2.1.

36mm Multirotor PDB

30.5mm M3 mounting holes for 36mm flight controllers like Naze32, Flip32, CC3d, etc.

Not compatible with 50mm FCs, like KK2.

The pin headers are added to allow the connection of a 5V UBEC to the pads above the cut out. The pads above that allow for ground, +V (~12v on 3S) and 5V out to power FPV cameras and/or video transmitter. The ground and +V pads at the bottom of the board are for supplying battery voltage to your flight controller for voltage monitoring (low battery alarm).

For an option with more exposed solder pads, please see revision 1.1.

Futaba SBUS to serial inverter. This is used for connecting SBUS compatible RC RXs with Naze32/Flip32 multirotor flight controllers on input pin 4, and enabling “feature SERIALRX” in the Baseflight CLI. The holes in the board are for cable strain relief when used with standard 26AWG servo wire. The strain relief holes can be removed with flush/side cutters for mounting with pin headers instead. This is useful if you with to mount the inverter directly to the SBus output pins on the my Rx and/or input pins on the flight controller.

Parts:

• 10k Ohm 0805 resistor

• 1k Ohm 0805 resistor

• MMBT2222A SOT-23 NPN transistor