Use JSN-SR04T sensor on Raspberry Pi to calculate the cylindrical volume of a raintank and publish to MQTT broker
Installation instruction:
1) Install the paho-mqtt library
sudo pip3 install paho-mqtt
2) Place the script wherever you want on the raspberry pi
3) Edit the script to the measurements of your rainwater tank
TankHeight = 200 # distance from sensor to bottom of tank ( cm )
TankRadius = 91 # radius of tank ( cm )
BrokerAddr = '192.168.1.41' # Address of MQTT brocker