Hello.

I have two LoRa Whisper Nodes. I have been attempting to get them to communicate with each other using the example sketches: voltage.node and voltage.base, with no success. I factory reset both units, set the frequency to 916MHz and the power to 13. - Still not working. I receive a serial output on the base - all readings are zero (0). Maybe I am missing something basic. Please provide some things I should check.

Thanks,

Hello mdavis,

Have you updated the code to define the board version: The default example will have it defined as RF69, you need to switch to LORA if that's your board.

Additionally, have the boards being modified or any device/sensor attached to it?

I uncommented the LoRa line. See below. I haven't made any changes not configuration changes to the code and no hardware modification or attached sensors. I am able to successfully flash the blink example sketch. 

/* You need to configure the Whisper Node Version */
//#define T2_WPN_BOARD T2_WPN_VER_RF69
#define T2_WPN_BOARD T2_WPN_VER_LORA
#define RADIO_FREQUENCY 916.0
#define RADIO_TX_POWER 13

Whisper Board Configuration:
================================================
 T A L K 2   W H I S P E R   N O D E   LoRa 1.0v
================================================
 
    Major Version: 1
    Minor Version: 0
     Running Mode: Client
 
## Configuration ##
 
  :: SPI Flash ::
         JEDEC ID: EF3013
        Unique ID: D7:67:4:42:81:32:59:32:
 Write Protection: 100
 
  :: Radio RFM95 ::
       Frequency: 916.0000000000MHz
        TX Power: 13dBm
 
 
  :: Supply Voltages ::
          Battery: 7mV
    Micro-USB/VIN: 5324mV
 
  :: Talk2 Bootloader ::
    Major Version: 2
    Minor Version: 2
      EEPROM Data: 54:6C:6B:B2:1:A:0:7:0:0:0:0:0:0:11:A:0:0:1:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:
 
============================================

Could you please program one board as Voltage Base and other as Voltage Node and show "paste" the serial output here as well?

Voltage - Base
### Latest Voltage Readings ###
       Battery: 0 millivolts. 0
  Power Supply: 0 millivolts. 0

### Latest Voltage Readings ###
       Battery: 0 millivolts. 0
  Power Supply: 0 millivolts. 0

### Latest Voltage Readings ###
       Battery: 0 millivolts. 0
  Power Supply: 0 millivolts. 0

Voltage - Node
TaskRunning
TaskRunning
TaskRunning
TaskRunning
TaskRunning

Hi mdavis59,

please send a message with your details and order number to contact@wisen.com.au

regards

mdavis59 wrote: Hello.

I have two LoRa Whisper Nodes. I have been attempting to get them to communicate with each other using the example sketches: voltage.node and voltage.base, with no success. I factory reset both units, set the frequency to 916MHz and the power to 13. - Still not working. I receive a serial output on the base - all readings are zero (0). Maybe I am missing something basic. Please provide some things I should check.

Thanks,

Please note: If you are running these units next to each other on your desk.workbench, using the supplied antennas, it is highly unlikely that they will be able to communicate with each other using power-level 13.

I had the same problem, and I was scratching my head for hours, eventually coming to believe that I had broken my Whisper Nodes somehow.

In desperation, I lowered the transmission power and... it worked perfectly! It seems high transmission power when the units are close to each other is "swamping" or saturating the receiver. 

Try a lower transmission power.

Regards

Mark