Many Bluetooth devices contain a circuit board or module that has a System on Chip (SoC). A SoC is a small computer with memory that runs software that handles Bluetooth. Combinations of SoC and software libraries are pre-qualified by SoC manufacturers so that compatibility is guaranteed. The main SoC manufacturers used for Bluetooth LE are Nordic Semiconductor, Dialog, TI, NXP and Toshiba.

Nordic SoCs
Dialog Bluetooth low energy
TI Bluetooth Low Energy
NXP Bluetooth Low Energy
Toshiba Bluetooth

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