Sherpa is Cat M1 & NB-IoT Pet tracker, For the first time to use, you have to use the Bluetooth App to program the unit, This tutorial will demonstrate how to program the Sherpa via Bluetooth App.
Ready
- Charge the device for 30 minutes at least via the USB charging cable.
- Press the button (on the charging cable) for 3 seconds to Power ON.
Download Bluetooth App
- Search “nRF Connect for Mobile” on Google Play or iOS store to download and install the APP on your phone.

Connect to Tracker
- Enable the Bluetooth on your Phone
- Enable the location on your Phone
- Open the App “nRF Connect for Mobile” on your Phone
- Click “SCANNER” and select Sherpa to CONNECT

- CLIENT->Nordic UART Service
- TX Characteristic ->Click the icon
- RX Characteristic ->Click the icon

Send Commands to Tracker
Setup IP
- The command format is “#ip+ip”
- For example, if your IP is 113.98.254.180, the command is #ip113.98.254.180
- Input the IP commands and click “SEND”.

Setup Port
- The command format is “#pt+port”
- For example, if your port is 7700, the command is #pt7700
- Input the port commands and click “SEND”.

- Swipe the phone screen to the LEFT until show the following interface.

Lock the Network
Input the following commands to set the network
Lock the Bands
Input the following command to Lock the bands.
Setup APN
Input the following command to setup APN
Setup Working Mode
Input the following commands to change the working mode
Commands List
Items | Command Format | Command Sample | Reply |
---|---|---|---|
APN | #APN:apn E | #APN:nbiot E | nbiot OK |
Cat M1 Only | #NB_MODE:0 E | #NB_MODE:0 E | CATM set OK |
NB-IoT Only | #NB_MODE:1 E | #NB_MODE:1 E | NB set OK |
NB-IoT Band | #BAND:X,Y | #BAND:8,20 E | 8,20 OK |
IP | #ip ip | #ip192.168.1.1 | ip OK |
Port | #ptport | #pt7700 | pt OK |
Read IP | #rdip: | #rdip: | |
Read Port | #rdpt: | #rdpt: | |
Read Network | #rdnbmode: | #rdnbmode: | |
Read working mode | #rdloder: | #rdloder: | |
Read APN | #rdapn: | #rdapn: | |
Read Bands | #rdband: | #rdband: |
FAQ
I can’t connect to the nRF Connect App.
Try to reboot the Sherpa and then check if enable Bluetooth on your phone.
How to restart my device?
Connect to the USB Charger and press the button for 10 seconds to power off until led off, then press the button for 3 seconds to power ON.
How to find my firmware version?
Connect the Sherpa on nRF Connect App and it will show the device version, such as “SHERPA.V02_xxx”.
How to check my device’s IMEI number?
The device will report the device IMEI to the server.
Why does it not report data to my server?
Please make sure the Sherpa is wake-up (if it stops for a long time it will go to sleep) when you test.
How to Power Off the device?
Connect to the USB Charger and press the button for 10 seconds to power off until led off.
How to Power ON the device?
Connect to the USB Charger and press the button for 3 seconds to power ON.