Customer developing projects with BLE, and i´m already producing my modules with csr1010. I´m using private caracteristic 8 for read and 1 for write. Customer prefer low cost ble module.
Then we suggested FSC-BT646.
FSC-BT646 CE, FCC, BQB past, and it is low cost suitable for most project.
Customer test FSC-BT646 and is good, so he place an order for 2K pcs.
Thanks for the support.