I am using nrf51822 chips and UART to communicate with my cellphone. I want to know if there are any ways to improve the sampling rate (reading and transmission) of measurement. I am doing the EEG stuff, so more date transitted is favorable. Thanks!
What "sampling rate" ?
Whether anything can be improved depends on where it's currently at - and we have no idea about that!
The nRF51822 Product Specification will tell you the capabilities of the chip.
Hi, Sampling rate relates to how many data collected in one second. More data collected in one second is preferred in my application.
I know what it means - but which particular "sampling rate" are you referring to?
the sampling of what and by what ?
The analog signal was input to nrf51822 ADC and then transmitted through Bluetooth. A cellphone was used as the terminal to receive data. I am wondering the maximal data the cellphone can receive per second. Thanks!
The maximum sample rate of the ADC in nRF51 series is 50 kHz, but this is heavily limited by the BLE activity if a softdevice is enabled. See this post for more details.