Reely QuadroCopter combi-board 450 + 650 208944 208944 Hoja De Datos

The composite signal converter has a green and a red LED for status display.
A green LED (LD1) indicates that the
electronics are in normal operation.
This means that servo signals can be
measured and if required a composite
signal can be generated. When the
greed LED goes out, there is a basic in-
terference in the electronics.
A red LED (LD2) shows that no servo
signals are present. The reasons fort his
may be receipt interference, missing
power supply of the receiver , switched-
off transmitter of contact errors in the
connection lines.

Behaviour in case of receipt interferences
The composite signal converter measures the signal quality and thus also recognises receipt
interferences. Since channels 1 - 4 are mainly used for general control of models, they are
mainly targeted.

Interferences on channels 1 - 4
For these channels, verification of a valid pulse width (between 1 and 2 ms) is performed. If an
error is recognised, the composite signal is generated with the last valid value.
When the error rate exceeds the measure for proper receipt, the composite signal converter
does not output any composite signal anymore and activates the red LED. Now the receipt
problem can be recognised by the downstream logic and no receipt problems are concealed.
If the input signal is valid again, the red LED goes out and a composite signal is generated.

Interferences on channels 5 - 8
If the receipt interference only acts on channels 5 - 8, a composite signal continues to be gener-
ated for channels 1 - 4 and channels 5 - 8 are output with an invalid pulse length.
Thus, it is possible to continue to control the model, but the interference can be recognised by a
downstream logic at channels 5 - 8.
When the input signal is valid again, a regular composite signal is output.