What's difference between serial module and direct-driven module?
The serial module is to forward data. And the direct-driven module can directly control peripheral circuits.
The serial module is the bridge between the connected devices and the mobile devices, which enables two-way communication.
The direct-driven module can be regarded as the CPU, the customer only needs to do the programming to drive the peripheral circuits.
There are some direct-driven modules in RF-star.
RF-star series modules: