Detailed Function; Ldc Reception; Single Point Wakeup - Ebyte E330-400T13S User Manual

433/470mhz 20mw wireless module

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Chengdu Ebyte Electronic Technology Co., Ltd.

5. Detailed function

E330-400T13S module receives in LDC mode. The module is in the LDC (Low Duty Cycle) ultra-low power receiving mode

when powered on. The specific working mechanism is that the module periodically wakes up from sleep to detect the wireless

wake-up code. If there is a valid wake-up code, turn on RX Windows, otherwise, it will restart again after timeout. Go to sleep.

As shown below:

Sending mode. When the module sends data, it can automatically load the wake-up code corresponding to the LDC cycle.

The module has a single-point wake-up function, which can effectively suppress the problem of false wake-ups between devices

with the same frequency and different addresses; in the internal design, the module address will be configured as the SYNC address of

the hardware radio frequency chip, which is used to synchronize the receiving process and send The receiver chip will automatically

filter this data packet if it does not match the receiving synchronization word; the sender uses the short preamble + synchronization

word when sending the wake-up code;

LDC cycle is software configurable

Both sender and receiver need to configure the same LDC cycle.

E78-900M22S User manual

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