LAUNCHXL-CC1352R1: Two BLE peripherals(CC1352R1) operate at the same time

Couldn't understand well on what you mean make two cc1352R BLE peripherals operate at almost the same time. Can you use solid example to elaborate this?

Hi,

Sorry for that. For example, I want to write a characteristic value to two cc1352 devices at the same time and hope the two cc1352 devices can receive the characteristic value at almost the same time. Is this clear?

Thanks.

BRs. 

Basically, you can try to decrease connection interval to minimum and send writing a characteristic value to two cc1352 devices continuously.

Hi,

Yeah, you're right. But I don't know how to write a characteristic value to two BLE devices at the same time. I check the GATT API and it seems that there is no API to support this function in the connection state.

Thanks.

BRs.

You cannot write a characteristic value to two BLE devices at the same time. You can only do this continuously in two write characteristic commands.

Hi,

If I do this continuously in two write characteristic commands, the time error between two BLE devices maybe not accepted. What I want to do is to make the two BLE devices receive the characteristic value and then execute some operations at almost same time.

Actually I want the two BLE devices to do something as synchronously as possible and this maybe related to time Synchronization in BLE. Is there any other ideas or good materials?

Thanks.

BRs.

According to my understanding on BLE protocol, it’s not feasible for your request. Wait and see if others have alternative for your application.

Hi,

For this requirement, we're just doing some research. We hope that the two BLE devices as peripheral GAP role can receive the command from the IOS application at the same time. Because our application scenario maybe related to sensor data fusion. Like we hope we can control two sensors to collect data at the same time(almost) through BLE(CC1352). So currently we don't have the clear benchmark and we want to know what methods can we use to achieve this function based on CC1352.

Thanks.

BRs