[IC]：CC2531

[Frequency]：2.394~2.507GHz

[Protocol]：Zigbee

[Distance]：200m

[Interface]：USB

[Introduction]：E18-2G4U04B uses CC2531 RF chip imported from Texas Instruments. The chip integrates 8051 microcomputer and wireless transceiver, and integrates PA + LNA, which greatly expands the communication distance and improves communication stability, and it is equipped with ADC sampling, remote PWM output control, remote GPIO control and other