MKR1010 BLE - Timeout issue

[sprasadkrish]

Hardware :MKR 1010WIFI ( for BLE)
Arduino lib : version 1.1.3

I am using one central and two peripherals for data receiving.

CentralBLE always receives data, based on a request to peripheralsBLE.
Example: CentralBLE request peripheralBLE-1, to send data, peripheralBEL-1 send data to CentralBLE similarly
peripheralBLE-2 also.
CentralBLE request peripheralBLE-2, to send data, peripheralBEL-2 send data to CentralBLE

Issue:
Central receive data up to 2 minutes , after two minutes , central disconnect peripheral and stop receiving data . There is any possible to increase the timeout of Central BLE , or possible to set NO TIMEOUT in CentralBLE(continues data transfer).

sketch :
CENTRAL_V11.0.txt
PERIPHERAL_1_V11.0.txt
PERIPHERAL_2_V11_0.txt

[polldo]

Hi @sprasadkrish ,
There isn't any timeout limiting the maximum connection time. So, the problem should reside in your sketches.
I can give you the following advice.

• Maintain two concurrent connections instead of disconnecting from each a peripheral after a read.
• Catch and handle the cases in which arduinoBLE functions execution fails (returning 0)
• Substitute the delay statement with a busy cycle that calls the BLE polling function (see example below)

handle scan enable failures

int ret = 0;
while (!ret) {
  ret = BLE.scanForUuid("19b10000-e8f2-537e-4f6c-d104768a1214");
}

substitute delays

unsigned long timeRef = millis();
void loop() 
{
  // substitute the delay with a busy cycle that calls the BLE polling function
  // delay(3000);
  timeRef = millis();
  while (millis() < timeRef + 3000) {
    BLE.poll();
  }
...
}
  

Regarding the first point I mentioned above, take a look at this #105 . This commit implements some functions useful for handling multiple peripherals/centrals. This commit can also be tried by checking out the arduinoBLE 'multi_connection' branch here https://github.com/arduino-libraries/ArduinoBLE/tree/multi-connection .
Some examples can be found here #50

[sprasadkrish]

Hi Paolo Calao , Thank you , As per your suggestion , I will modify the sketches.

…

On Mon, 31 Aug 2020 7:43 pm Paolo Calao, ***@***.***> wrote: Hi @sprasadkrish <https://github.com/sprasadkrish> , There isn't any timeout limiting the maximum connection time. So, the problem should reside in your sketches. I can give you the following advice. - Maintain two concurrent connections instead of disconnecting from each a peripheral after a read. - Catch and handle the cases in which arduinoBLE functions execution fails (returning 0) - Substitute the delay statement with a busy cycle that calls the BLE polling function (see example below) handle scan enable failures int ret = 0;while (!ret) { ret = BLE.scanForUuid("19b10000-e8f2-537e-4f6c-d104768a1214"); } substitute delays unsigned long timeRef = millis();void loop() { // substitute the delay with a busy cycle that calls the BLE polling function // delay(3000); timeRef = millis(); while (millis() < timeRef + 3000) { BLE.poll(); } ... } Regarding the first point I mentioned above, take a look at this #105 <#105> . This commit implements some functions useful for handling multiple peripherals/centrals. This commit can also be tried by checking out the arduinoBLE 'multi_connection' branch here https://github.com/arduino-libraries/ArduinoBLE/tree/multi-connection . Some examples can be found here #50 <#50> — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#109 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AOFHQSSOZ43GUU4KQQLT2X3SDOVXBANCNFSM4QH6Z7SA> .