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Installation Guide
The Atlatl is designed to be installed in your flight controller stack. It can be installed above or below
your FC using the same type of M3 nylon standoffs that are used to mount the FC itself. Wiring up the
Atlatl is not complicated.
1.
Insert the JST-GH connector into the receptacle on the Atlatl.
2.
Solder the red wire to the voltage source for the Atlatl. The Atlatl can run off of battery voltage
directly (7 to 42 volts, 2S to 6S). There is no need to run the Atlatl off of a voltage regulator.
3.
Solder the black wire to a ground pad. Video noise will be minimized if you solder your Atlatl
ground wire and your FPV camera’s ground wire to the same pad. Twist them together and tin
them before soldering them both to the same pad.
4.
Connect the Atlatl’s yellow wire to the video signal wire of your FPV camera. The camera’s video
wire will usually be yellow as well. You can directly solder the two wires together, or you might
have a PDB or FC with a “Video In” and “Video Out” pad. In that case, solder the camera’s video
wire to “Video In” and the Atlatl’s video wire to “Video Out”.
5.
The Atlatl can be remote-controlled using the ImmersionRC Tramp Telemetry protocol. This is
the intended use of the Atlatl. To use this feature, solder the Atlatl’s blue wire to the TX pad of
the UART on your flight controller that will be used for this feature.
6.
In Betaflight or Cleanflight, go to the Ports tab. Enable IRC Tramp protocol on the UART that you
are using to remote-control the Atlatl (the UART whose TX pad you soldered the blue wire to).
