Chengdu Ebyte Electronic Technology Co., Ltd. E22-xxxT30x series product user manual
Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd.
4. Recommended Connection Diagram
Brief connection instructions between the module and the microcontroller (the above figure takes the STM8L
microcontroller as an example)
The wireless serial port module is TTL level, please connect it to a TTL level MCU.
Some 5V microcontrollers may need to add 4 to 10K pull-up resistors to the TXD and AUX pins of the module.