Changes for page LSN50v2-D20-D22-D23 LoRaWAN Temperature Sensor User Manual
Last modified by Xiaoling on 2024/01/17 16:19
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... ... @@ -925,37 +925,41 @@ 925 925 926 926 927 927 928 -=== 4.3.1 Battery Note === 928 +1. 929 +11. 930 +111. Battery Note 929 929 930 -((( 931 931 The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased. 932 -))) 933 933 934 934 935 +1. 936 +11. 937 +111. Replace the battery 935 935 936 -=== 4.3.2 Replace the battery === 937 - 938 938 You can change the battery in the LSPH01.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board. 939 939 941 + 940 940 The default battery pack of LSPH01 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes) 941 941 942 942 943 943 944 -= 5. Use AT Command = 945 945 946 -== 5.1 Access AT Commands == 947 947 948 + 949 +1. Use AT Command 950 +11. Access AT Commands 951 + 948 948 LSPH01 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LSPH01 for using AT command, as below. 949 949 950 -[[image: 1654589001411-343.png]]954 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]] 951 951 952 952 Connection: 953 953 954 954 USB TTL GND <~-~-~-~-> GND 955 955 956 -USB TTL TXD 960 +USB TTL TXD <~-~-~-~-> UART_RXD 957 957 958 -USB TTL RXD 962 +USB TTL RXD <~-~-~-~-> UART_TXD 959 959 960 960 961 961 In the PC, you need to set the serial baud rate to **9600** to access the serial console for LSPH01. LSPH01 will output system info once power on as below:
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