Sarf service to get sensor data using temperature & humidity SHT20 sensor modbus RTU Added sensor for radiation /getSensorData is the name of Service Server
returns temperatura and umidita
rosservice call /getSensorData temperatura: 20.43 umidita: 54.91
requirements: pip install minimalmodbus
to build : catkin_make on temphum_ws
to run: rosrun temphum scripts/getTempAndHumidity.py
Publish Data: rosrun temphum send_sensor_data
default port /dev/ttyUSB0
change permissions : sudo chmod 777 /dev/ttyUSB0 or add user to dialout group
