1、please send the same Baud rate 115200 of both side
2、Make sure that the connections are normal. Connect black cables to black cables and yellow cables to yellow cables. Do not touch each other after connection

3、please use sdk demo to test
TELPO_DEMO_NEW_20220928.apk:http://service.telpo.net:8091/index/user/fetfile?key=g7LiNcS1ETtapxYA



if you want to receive data from other side ,please note to click the Rs485 RECV button firstly
