New 2.2.0 Signal report function

[peerv]

How can I implement the new 2.2.0 function

#define MY_SIGNAL_REPORT_ENABLED

Should it be defined in the node and/or the gateway?
Can it be used with NRF24?
How is the RSSI value reported?
Could not find a writeup on this new function.

[gohan]

https://forum.mysensors.org/topic/7822/portable-rfm69-signal-scanner/6

It works only for RFM69 and I didn't need to add the define you mentioned

[flopp]

I tried to send RSSI with nRF and it seemed to work, I could get a value that was changing if I moved away from Gateway.

i was using this variable, transportGetSignalReport(SR_TX_RSSI)

so to send the RSSI create a Child, I think you can pick anyone that can handle value from 0-1024 then use below message to send the value

send(RSSIMsg.set(transportGetSignalReport(SR_TX_RSSI)));

I am using Domoticz as Controller

[gohan]

I'll give it a try

[flopp]

I just now found some other maybe interested variables

transportGetReceivingRSSI()
transportGetSendingRSSI()
transportGetReceivingSNR()
transportGetSendingSNR()
transportGetTxPowerLevel()
transportGetTxPowerPercent()
transportInternalToRSSI(_transportSM.uplinkQualityRSSI)

i have not tested anyone of them, but it seems that "transportGetSendingRSSI()" will give same result as "transportGetSignalReport(SR_TX_RSSI)"
so the message may look like this instead

send(RSSIMsg.set(transportGetSendingRSSI()));

[gohan]

It's similar to the signal scanner code I used but I did not know it was working on nrf24

[sling]

Very useful new feature.
I learned a lesson: I'll be using the nrf24 without booster from now on. Much better range and commmunication.

output from nrf24 with radio set to LOW:

-256 :transportGetReceivingRSSI()
-29 :transportGetSendingRSSI()
-256 :transportGetReceivingSNR()
-256 :transportGetSendingSNR()
-12 :transportGetTxPowerLevel()
25 :transportGetTxPowerPercent()
0 :transportInternalToRSSI(_transportSM.uplinkQualityRSSI)

[gohan]

How did you make the tests?

[sling]

I added this to my sketch and observed serial output:

Serial.print(transportGetReceivingRSSI()); Serial.println(" :transportGetReceivingRSSI()");
Serial.print(transportGetSendingRSSI()); Serial.println(" :transportGetSendingRSSI()");
Serial.print(transportGetReceivingSNR()); Serial.println(" :transportGetReceivingSNR()");
Serial.print(transportGetSendingSNR()); Serial.println(" :transportGetSendingSNR()");
Serial.print(transportGetTxPowerLevel()); Serial.println(" :transportGetTxPowerLevel()");
Serial.print(transportGetTxPowerPercent()); Serial.println(" :transportGetTxPowerPercent()");
Serial.print(transportInternalToRSSI(_transportSM.uplinkQualityRSSI));Serial.println(" :transportInternalToRSSI(_transportSM.uplinkQualityRSSI)");

I don't know if it's a valid way to check the values.

[jumping]

Hi,
the NRF24l01 doesn't have a RSSI function as reported in Nordic datasheet, so how can the signal report work?
thanks

[mfalkvidd]

@jumping it doesn't :-)

See https://github.com/mysensors/MySensors/blob/57eca4f4afb3a26f4ef0ec10d522ac062de4d101/hal/transport/RF24/MyTransportRF24.cpp#L176

int16_t transportGetReceivingRSSI(void)
{
	// not available, only bool RPD
	return INVALID_RSSI;
}

int16_t transportGetSendingSNR(void)
{
	return INVALID_SNR;
}

int16_t transportGetReceivingSNR(void)
{
	return INVALID_SNR;
}

and
https://github.com/mysensors/MySensors/blob/6794c72ecd8c35c1a7587f73996d50c347b17f93/hal/transport/MyTransportHAL.h#L23

#define INVALID_SNR         ((int16_t)-256)	//!< INVALID_SNR
#define INVALID_RSSI        ((int16_t)-256)	//!< INVALID_RSSI
#define INVALID_PERCENT     ((int16_t)-100)	//!< INVALID_PERCENT
#define INVALID_LEVEL ((int16_t)-256) //!< INVALID_LEVEL

[jumping]

@mfalkvidd thanks for your answer, can you tell me what is the RF24_getSendingRSSI?

int16_t transportGetSendingRSSI(void)
{
	return RF24_getSendingRSSI();
}

[mfalkvidd]

@jumping github has a great search function if you want to get the answer quicker next time. :-)

Implementation: https://github.com/mysensors/MySensors/blob/345d6d7d119f5d2446c7d6a41e6f749e6ca8741c/drivers/RF24/RF24.cpp#L401

[jumping]

thanks, next time I will use the github search function :-) :+1: