I have this Multimeter Owon B35T with Bluetooth 4.0. It has an Android app, but I want to transmit the Data to my Arduino or Raspberry Pi3, for Data logging. To do this, I had to analyse the Data coming from the Multimeter.
For receiving the Data from the Multimeter, I used a Bluetooth V4.0 HM-11 BLE Module connected to an Arduino pro micro running on 3,3V and 8Mhz. The module is connected to the serial interface of the Arduino and the received data are transmitted to the Usb port of the same Arduino connected to the PC.
The same way I configured the BT Module over At commands
Config of the BT module.
I used a simple Arduino program to send and receive Data to and from the module.
First you have to set the module to Cental.
moule = central
show Bluetooth name in response
scan for devices
To connect to the Owon B35T type AT+CONE0(Mac adress of the Multimeter)