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EasyRaceLapTimer Transponder Through Hole R1.1

author: TimJC
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2 layer board of 0.63 x 0.86 inches (16.0 x 21.8 mm)
Uploaded: December 10, 2015
Shared: December 10, 2015
Total Price: $2.70

IR transponder for multirotor (drone) racing with EasyRaceLapTimer system.

This board is intended to be powered by 5V from a spare servo connector on your receiver or flight controller. The hole in the board is for cable strain relief.

Note: ATTiny85 needs to be programmed with applicable code from EasyRaceLapTimer project.

This board has not been tested.

Parts to populate each board:

  • ATTiny85 DIP8

  • 2N2222 Transistor TO-92 or TO-18

  • 33Ohm 1/4W Resistor

  • 330Ohm 1/4W Resistor

  • Infrared 950nm LED LD274-3

  • 26AWG Servo Lead

Optional (but recommended): - DIP-8 Socket

For more informaiton visit:

  • EasyRaceLapTimer.com

  • RCGroups.com thread

5V SMD R1.2 version

Battery balance port R1.2 version

IR transponder for multirotor (drone) racing with EasyRaceLapTimer system.

This board is intended to be powered by 5V from a spare servo connector on your receiver or flight controller. The hole in the board is for cable strain relief.

Note: ATTiny85 needs to be programmed with applicable code from EasyRaceLapTimer project.

This board has not been tested.

Parts to populate each board:

  • ATTiny85 DIP8

  • 2N2222 Transistor TO-92 or TO-18

  • 33Ohm 1/4W Resistor

  • 330Ohm 1/4W Resistor

  • Infrared 950nm LED LD274-3

  • 26AWG Servo Lead

Optional (but recommended): - DIP-8 Socket

For more informaiton visit:

  • EasyRaceLapTimer.com

  • RCGroups.com thread

5V SMD R1.2 version

Battery balance port R1.2 version

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      Hey there! Before ordering, make sure you have all the info you need to complete and use this design. This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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