Chengdu Ebyte Electronic Technology Co.,Ltd
E07-900M10S User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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away from the module according to the strength of the interference.If necessary, appropriate isolation and shielding
can be done;
If the communication line uses a 5V level, a 1k-5.1k resistor must be connected in series (not recommended, there is
still a risk of damage);
The mounting structure of antenna has a great influence on the performance of the module. It is necessary to ensure
that the antenna is exposed, preferably vertically upward. When the module is mounted inside the case, use a good
antenna extension cable to extend the antenna to the outside;
The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly
weakened.
4.2 Programming
It can complete the wireless data transceiving by operating its control register and transceiving buffer. Please refer
to the latest CC1101 data sheet for the timing operation of module register.
GDO0 is a general purpose I/O port
，
see CC1101 user manual
；
GDO2 is generally configured as an IRQ-like function, or not connected. SPI query mode can be used to obtain the
interrupt status, but it is still recommended to use external interrupt by connecting to a MCU;
After CC1101 restores IDLE mode or configured as sleep mode, it is recommended to reinitialize the power
configuration table.
5 Recommended circuit diagram
