which chip should capsule endoscope use? What is the actual maximum speed?

[zhaokun_01]

which chip should capsule endoscope use? What is the actual maximum speed?

[Kenneth]

For new development check out the nRF52832 (or other devices in the nRF52-family):
https://infocenter.nordicsemi.com/topic/struct_nrf52/struct/nrf52832.html?cp=3_2 

The SDK documentation can be found here:
https://infocenter.nordicsemi.com/topic/struct_sdk/struct/sdk_nrf5_latest.html?cp=5_1 

The throughput depends on the configuration of the BLE link, but some numbers are found here (see Table 2 at the bottom):
https://infocenter.nordicsemi.com/topic/sds_s113/SDS/s1xx/ble_data_throughput/ble_data_throughput.html?cp=3_5_1_0_16 

[zhaokun_01]

Thank you very much. For power consumption and throughput, Is nRF52832  bettor than nRF24LE1?

[Kenneth]

Yes. 

[zhaokun_01]

For capsule endoscope project, Is Bluetooth communication reliable? I know that the nordic gazella of nRF24LE1 is reliable.

[Kenneth]

All data transfer in BLE is reliable yes. Data cannot be lost, and data is received in the order they are sent.

Best regards,
Kenneth