{

uint8_t retries = 3;

while (GetChannelIndex() != index && retries > 0)

{

SetChannelIndex(index);

retries--;

}

{

MSP msp;

mspPacket_t packet;

packet.reset();

packet.makeCommand();

packet.function = MSP_ELRS_BACKPACK_GET_CHANNEL_INDEX;

// Send request, then wait for a response back from the VRX

bool receivedResponse = msp.awaitPacket(&packet, m_port, VRX_RESPONSE_TIMEOUT);

if (receivedResponse)

{

mspPacket_t *packetResponse = msp.getReceivedPacket();

msp.markPacketReceived();

return packetResponse->readByte();

}

DBGLN("HDZero module: Exceeded timeout while waiting for channel index response");

return CHANNEL_INDEX_UNKNOWN;

{

MSP msp;

mspPacket_t packet;

packet.reset();

packet.makeCommand();

packet.function = MSP_ELRS_BACKPACK_SET_CHANNEL_INDEX;

packet.addByte(index); // payload

msp.sendPacket(&packet, m_port);

{

MSP msp;

mspPacket_t packet;

packet.reset();

packet.makeCommand();

packet.function = MSP_ELRS_BACKPACK_GET_RECORDING_STATE;

// Send request, then wait for a response back from the VRX

bool receivedResponse = msp.awaitPacket(&packet, m_port, VRX_RESPONSE_TIMEOUT);

if (receivedResponse)

{

mspPacket_t *packetResponse = msp.getReceivedPacket();

msp.markPacketReceived();

return packetResponse->readByte() ? VRX_DVR_RECORDING_ACTIVE : VRX_DVR_RECORDING_INACTIVE;

}

DBGLN("HDZero module: Exceeded timeout while waiting for recording state response");

return VRX_DVR_RECORDING_UNKNOWN;

{

DBGLN("SetRecordingState = %d delay = %d", recordingState, delay);

MSP msp;

mspPacket_t packet;

packet.reset();

packet.makeCommand();

packet.function = MSP_ELRS_BACKPACK_SET_RECORDING_STATE;

packet.addByte(recordingState);

packet.addByte(delay & 0xFF); // delay byte 1

packet.addByte(delay >> 8); // delay byte 2

msp.sendPacket(&packet, m_port);

{

MSP msp;

mspPacket_t packet;

packet.reset();

packet.makeCommand();

packet.function = MSP_ELRS_BACKPACK_SET_HEAD_TRACKING;

packet.addByte(enable);

msp.sendPacket(&packet, m_port);

{

MSP msp;

msp.sendPacket(packet, m_port);

{

MSP msp;

mspPacket_t packet;

tm timeData;

if(!getLocalTime(&timeData)) {

DBGLN("Could not obtain time data.");

return;

}

packet.reset();

packet.makeCommand();

packet.function = MSP_ELRS_BACKPACK_SET_RTC;

packet.addByte(timeData.tm_year);

packet.addByte(timeData.tm_mon);

packet.addByte(timeData.tm_mday);

packet.addByte(timeData.tm_hour);

packet.addByte(timeData.tm_min);

packet.addByte(timeData.tm_sec);

msp.sendPacket(&packet, m_port);