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YS-S4 Multi-rotor Autopilot User Manual V1.4
g.
Only the USB interface can be used for Parameter Setting and Firmware Upgrade. The COM port is also an
interface to connect to a WI‐FI module.
h.
The YS‐S4 DOES NOT support ESC calibration The ESCs should be calibrated independently referring to the
manufacturer supplied ESC manual. It is a good idea to disable the ESC low‐voltage cut out. With most ESCs all
you need do is configure them to NiMH.
5.2
How to Connect the Modules
1) Connect the power supply module
As shown below, one 3‐core cable is used to connect the S4 to the power unit, the WHITE‐core is up, the
RED‐core is in the middle and the BLACK‐core is below.
The RED and BLACK bare wires should to be soldered to the Positive and Negative pole of the battery pack
connector (3S‐6S Lipo).
2) Connect the LED module
The LED module should be connected to the LED interface of the S4 main controller as shown.
3) Connect the GPS module
The GPS module has red and black ends; the RED end is connected to the S4 GPS‐R interface, and the black end to
the GPS‐B interface. The side of the slot faces up.
4) Connect the receiver
8
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