# Q: Can this device also detech other BLE devices?
Yes. Change the device to "RAW" scan mode. It can detect all BLE advertisement data.
# Q: How to write my own MQTT client?
Please check How to write my own MQTT client
# Q: How to upgrade firmware?
Please check How to upgrade firmware
# Q: Can the receiver work in a LAN network?
Yes. You can change the MQTT broker IP to LAN network.
# Q: Why the receiver restart after 2 minutes?
The device will restart after 2 minutes if these happened.
- Not connected to WiFi
- Not connected to MQTT Broker