Defaults to BLE protocol version 1

I'll keep it at v1 until at least the ESPHome and Home Assistant bridges
versions are released with support to v2.

bridge/parahub.yaml

@@ -3,21 +3,11 @@ esphome:
   platform: ESP32
   board: lolin32
 
-wifi:
-  ssid: !secret wifi_ssid
-  password: !secret wifi_password
-  power_save_mode: none
-
-mqtt:
-  broker: !secret mqtt_broker
-  username: !secret mqtt_user
-  password: !secret mqtt_password
-
 esp32_ble_tracker:
 
 sensor:
   - platform: b_parasite
-    mac_address: "f0:ca:f0:ca:00:01"
+    mac_address: "f0:ca:f0:ca:01:01"
     humidity:
       name: "bprst1 humidity"
     temperature:
@@ -28,7 +18,3 @@ sensor:
       name: "bprst1 battery_voltage"
 
 logger:
-  # level: VERY_VERBOSE
-
-ota:
-  password: !secret ota_password

code/b-parasite/config/prst_config.h

@@ -28,7 +28,9 @@
 // BLE.
 // Prints out BLE debug info, such as the final encoded advertisement packet.
 #define PRST_BLE_DEBUG 0
-#define PRST_BLE_PROTOCOL_VERSION 2
+// The BLE protocol version defines how the sensors' data is encoded inside the
+// BLE advertisement packet.
+#define PRST_BLE_PROTOCOL_VERSION 1
 
 // There are two options for configuring the MAC address of b-parasites:
 // 1. Comment out the PRST_BLE_MAC_ADDR to use a random static MAC address that