thanks esp_tk, I was able to find the advertisement, just by increasing the scan interval/scan window. They were using blugiga module as ble server, which requires a longer period of scanning. i was able to make the connection and read the data. but i am not able to make the connection consistently,...

Hi Everybody, I am working on Gatt client example to read data NONIN3230 pulseoximeter. I am able to connection with a esp32 server and read the data from the device But could not make connection with NONIN3230 pulse oximeter device. ie.. while performing the scanning, the client is not able to disc...