Operation Instructions

1.
Use your mobile phone to test the Bluetooth function, download "nRF Connect"
on an Android phone, as shown in Figure 3, download it on an iPhone
“LightBlue”，As shown in Figure 4;
F3 F4
2.Take nRF Connect as an example. After entering the APP, open Bluetooth and
fill in the filter Bluetooth name "AOJ-20A", as shown in Figure 5. Pull down
to refresh and you will only see the name "AOJ-20A". If there are more than
one, select For the device with the strongest signal, you can also enhance
the RSSI to -60dBm filtering, click CONNECT to connect, as shown in Figure
6;
F5 F6
Turn on the Bluetooth receiving service, as shown in Figure 7; perform a
normal measurement and check the received Bluetooth data, as shown in
Figure 8;