Saline Level Monitoring System using LoRa Technology

Published Sep 19, 2022

GPL-3.0-only

10 hours to build

Beginner

arduino

Our system continuously monitors the weight of the saline bottle with the help of a load sensor and it is converted into saline level. The saline level reaches to a threshold limit (10% of saline) it automatically switches off the flow with the help of the solenoid valve connected to the saline bottle. The notification is also sent to the person in charge with the help of the Lora Module (Ra-02).

Components Used
Breadboard Half Size Breadboard Half Size	X 1
Load Cell ADC HX711 Data Conversion IC Development Tools Grove - ADC for Load Cell (HX711)	X 1
Buzzer 5V Buzzer 5V	X 1
Arduino UNO Arduino UNO	X 1
Solenoid Valve 12V Solenoids & Actuators 12V Solenoid Valve 3/4in	X 2
LCD 16x2 Display Module LCD16x2 has two lines with 16 character in each line. LCD16x2 is generally used for printing values and string in embedded application.	X 1
USB Type A to B Cable USB Cables / IEEE 1394 Cables USB A-B 28/26 BLACK 1.3 M	X 1
Relay Module Single Channel Relay Module Single Channel	X 1
Male to Female Jumper Wire Jumper Wires Mach pin jumper wires	X 1
Female to Female Jumper Wire Jumper Wires Mach pin jumper wires	X 1
Male to Male Jumper Wire Jumper Wires Mach pin jumper wires	X 1
12VDC Adapters Power Supply Wall Mount AC Adapters POWER SUPPLY 12VDC MEDIC GRADE US EU UK	X 1
RA02 LoRa Module Long Range Wireless Module 433Mhz Wireless module	X 1
Wireless Gain Antenna To transmit signals	X 1

Description

Transmitter Side:

First the Load cell along with amplifier module is connected with arduino uno and checked its working

Second, added saline bottle to it and checked for weight

Third, if the weight is below threshold limit then the relasy is turned off so that the saline flow is stopped

Last the data are trasmitted to the receiver module with the help of LoRa Module

Receiver Module:

First the value sent through LoRa Module is receibved and sent to the microcontroller

Second, The information is shown on the receiver display screen

Third, If the saline level is low the buzzer on the receiver module will be made to buzz so that the receiver knows the situation of the bottle and act accordingly