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LED Outputs

Status LED

The status LED (STATUS_LED) indicates the status of TimoTwo module. The LED indicator pin is an output pin capable of sourcing 5mA at the VDD voltage. An appropriate current limiting resistor must be connected in series with the LED. This LED is also used when using the link switch based method of switching flex modes; please refer to flex mode page for details.

Receiver

Constant off (0V): Not linked to any transmitter

Flashing: off (0V) 100 ms / on (VDD) 100 ms: linked to a transmitter, but no active radio link

Flashing: off (0V) 900 ms / on (VDD) 100 ms: Active radio link, no DMX present

Constant on (VDD): Active radio link, DMX data present

Transmitter

Flashing: off (0V) 900 ms / on (VDD) 100 ms: Active radio link, no DMX present

Constant on (VDD): Active radio link, DMX data present

Flashing: off (0V) 100 ms / on (VDD) 100 ms: linking receivers

Flashing: off (0V) 200 ms / on (VDD) 200 ms: unlinking receivers

Linked

Receiver

The Linked LED (LINKED) indicates whether the TimoTwo is linked to a transmitter or if it’s available to be linked. High level (VDD) on this pin indicates a linked state; low level (0V) indicates that the TimoTwo module is not linked.

Transmitter

High level (VDD) on this pin indicates an ongoing linking activity; low level (0V) indicates that the TimoTwo module is currently not performing a linking activity.

Receiver

A high level (VDD) on the RF Link LED output (RF_LINK) indicates that the receiver is within range from the transmitter it is linked to and that an active radio link from the transmitter is present.

Transmitter

A high level (VDD) on the RF Link LED output (RF_LINK) indicates that there is an active radio link.

DMX LED

The DMX LED (DMX_LED) indicates if a valid DMX stream is received. A high level (VDD) indicates that DMX is present, a low level (0V) indicates that no valid DMX is present.

RDM LED

A high level (VDD) on the RDM LED output (RDM_LED) indicates that the TimoTwo is performing RDM activity.

Radio level

TimoTwo has 5 output signals for controlling radio level LEDs in the form of a bar graph (RDI_LVL0 - RDI_LVL4). Operation of these, and suggestion of LED colors, can be found in the table below. These are only used for receivers.

Signal name Suggested LED color On when signal quality
RDI_LVL0 Red below 10%
RDI_LVL1 Amber / Yellow above 20%
RDI_LVL2 Green above 40%
RDI_LVL3 Green above 60%
RDI_LVL4 Green above 80%