I am using the NUCLEO-WL33CC1 (for 868 MHz freq) and I tried the LPAWUR feature based on the Github examples that you provided:
https://github.com/STMicroelectronics/STM32CubeWL3/tree/main/Projects/NUCLEO-WL33CC/Demonstrations/LPAWUR/LPAWUR_WakeupRadio_Rx
https://github.com/STMicroelectronics/STM32CubeWL3/tree/main/Projects/NUCLEO-WL33CC/Demonstrations/MRSUBG/MRSUBG_WakeupRadio_Tx
The issue is that the range that I get is a max of 3 meters, no more that this. I already soldered the C3 capacitor, that is by default missing, with a value of 100pF. The L3 is 5.6nH and L4 is 6.8nH based on the schematics (MB2029) of the NUCLEO witch matches the values that are in the User Manual of the Nucleo (UM3418).
Questions:
- Is there anything that I am missing here in order to get a better range for the LPAWUR feature ?
- Should I be using a higher power Tx mode to get a better range, on the Github example the Tx power is set to 14 dbm ? If I change these value to 20 dbm and to PA_DRV_TX_TX_HP, will I get a better range ? If I get a better range, for how much meters the range will be improved ?
MRSUBG_RadioInitStruct.outputPower = 14;
MRSUBG_RadioInitStruct.PADrvMode = PA_DRV_TX_HP;
- In the GUI Application STM32CubeWiSE - RadioExplorer there is a tab "Wakeup radio settings" and also "Wakeup RX packet list" but I do not know how to set this and try it. Can you assist with these, how to test the LPAWUR via this GUI application ?
- Should I change the AGC settings for the LPAWUR Rx part to be more sensitive. Currently, in the code, for the Rx part the AGC is turned off ?
LPAWUR_RadioInitStruct.AgcMode = AGC_MODE_OFF;
