Software Editing; Basic Application; Basic Circuit Diagram - Ebyte E19-433M30S User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.

Try to stay away from some physical layers such as TTL protocol at 2.4GHz , for example: USB3.0；
 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 Software editing

 SX1278/SX1276+PA+LNA，same drive way as SX1278/SX1276，user can refer to SX1278/SX1276 datasheet.
 DIO0、DIO1、DIO2、DIO3、DIO4、DIO5 are configurable I/O ports for various application，see more in SX1278
datasheet. It can be floated when not used.
 RST、TXEN、RXEN must be connected,among which RST control chip reset，TXEN, RXEN are for controlling
RF switch.
 Make it ground well with large s pace for grounding and small power ripple. Filter capacitor is necessary and make
sure it is close to pin VCC and GND.
 SPI communication rate should not be set too high, usually around 1Mbps.
 In transmitting，set TXEN as high communication level，RXEN pin is low level; In receiving, set RXEN as high
communication level,TXEN is low level; Before powering off, set TXEN、RXEN as low level.
 Re-initialize register configuration when the chip is idle for higher stability.

5.Basic application

5.1 Basic circuit diagram

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E19-433M30S User Manual
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