Changes for page SN50v3-LB/LS -- LoRaWAN Sensor Node User Manual
Last modified by Bei Jinggeng on 2025/01/10 15:51
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... ... @@ -737,13 +737,11 @@ 737 737 738 738 ==== 2.3.3.7 Distance Reading ==== 739 739 740 - 741 741 Refer [[Ultrasonic Sensor section>>||anchor="H2.3.3.8UltrasonicSensor"]]. 742 742 743 743 744 744 ==== 2.3.3.8 Ultrasonic Sensor ==== 745 745 746 - 747 747 This Fundamental Principles of this sensor can be found at this link: [[https:~~/~~/wiki.dfrobot.com/Weather_-_proof_Ultrasonic_Sensor_with_Separate_Probe_SKU~~_~~__SEN0208>>url:https://wiki.dfrobot.com/Weather_-_proof_Ultrasonic_Sensor_with_Separate_Probe_SKU___SEN0208]] 748 748 749 749 The SN50_v3 detects the pulse width of the sensor and converts it to mm output. The accuracy will be within 1 centimeter. The usable range (the distance between the ultrasonic probe and the measured object) is between 24cm and 600cm. ... ... @@ -754,7 +754,6 @@ 754 754 755 755 [[image:image-20230512173903-6.png||height="596" width="715"]] 756 756 757 - 758 758 Connect to the SN50_v3 and run (% style="color:blue" %)**AT+MOD=2**(%%) to switch to ultrasonic mode (ULT). 759 759 760 760 The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value. ... ... @@ -767,13 +767,11 @@ 767 767 768 768 ==== 2.3.3.9 Battery Output - BAT pin ==== 769 769 770 - 771 771 The BAT pin of SN50v3 is connected to the Battery directly. If users want to use BAT pin to power an external sensor. User need to make sure the external sensor is of low power consumption. Because the BAT pin is always open. If the external sensor is of high power consumption. the battery of SN50v3-LB will run out very soon. 772 772 773 773 774 774 ==== 2.3.3.10 +5V Output ==== 775 775 776 - 777 777 SN50v3 will enable +5V output before all sampling and disable the +5v after all sampling. 778 778 779 779 The 5V output time can be controlled by AT Command. ... ... @@ -788,7 +788,6 @@ 788 788 789 789 ==== 2.3.3.11 BH1750 Illumination Sensor ==== 790 790 791 - 792 792 MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes. 793 793 794 794 [[image:image-20230512172447-4.png||height="416" width="712"]]