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    • C

      Fipy Beta Firmware 1.20.3.b3 BLE advertisement sniffer
      Comments & Feedback • fipy ble performance beta firmware sniffer • • Clément Berges  

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      I have made the test with scan intervals and scan windows equal to 10 ms. static esp_ble_scan_params_t ble_scan_params = { .scan_type = BLE_SCAN_TYPE_ACTIVE, .own_addr_type = BLE_ADDR_TYPE_PUBLIC, .scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL, .scan_interval = 0x10, .scan_window = 0x10 }; The results are better but still not as good as v1.20.3.b0 Beta Firmware was. With the new values, I raised up to 60% of advertisement frames catched. Always with the same conditions and 500 ms as advertisement interval.
    • le_wildfox

      Network Performance Measure with Pycom Board
      Discussion • gpy pysense nb-iot performance discussion • • le_wildfox  

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      @le_wildfox I'm not very familiar with NB-IoT, but from what I understand, it is quite specifically designed to not offer great throughput or latency, as the priority is low power. The peak rate is between 20 and 250 kbits/s, and latency is counted in seconds... Not sure exactly what you expect to get...
    • robert-hh

      Doubt about the Lora Antenna kit
      Discussion • lora antenna performance • • robert-hh  

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      robert-hh

      @jcaron I have two antennas which perform more robust. One, which looks similar, but is 22 cm long (18 cm up from the hinge). That one shows a nice current profile, peak in the middel of the "active" section and going down to almost zero towards bot sides. The other is a home-brew ground plane antenna, along a recipe from the ttn forum, which also work pretty well. Both are not very sensitive to touching the xxPy and moving. Compared to these the PyCom antenna performs between 6dB and 16 dB, depending on placement and touching. I have my xxPY built into a aluminium box with the antenna connector at the shorter side. The PyCom antenna shows some current at the connector, which explains the sensitivity to touching. Picture: GP antenna on FiPy in a box, built from a SMA connector an 1.5 mm wire. Tip wire it 82mm, the radial are 86 mm.
    • B

      BLE GATTC write perfomance
      Discussion • bluetooh characteristic performance write • • binux  

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    • R

      Enhancing the readout speed of BLE devices around the PyCom
      WiPy 2&3 • wipy ble time data rate performance • • redimo  

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