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PC and Analog MQ-3 Alcohol Sensor based Wireless Alcohol Monitoring System with ATmega16 using Series 2 Zig Bee

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In this project, we will learn about PC and Analog MQ-3 Alcohol Sensor based Wireless Alcohol Monitoring System with AVR ATmega16 Microcontroller using Series 2 Zig Bee. Here, we will display and monitor the concentration of Alcohol wirelessly from a PC/Laptop using Zig Bee.

Since, the output of the Analog MQ-3 Alcohol Sensor is analog in nature and these analog signals cannot be processed directly by the ATmega16 microcontroller. So, first this signal needs to be converted to digital value to be processed by the microcontroller. The conversion can be done with the help of ADC of the AVR ATmega16 microcontroller. After converting the analog signal to digital, the microcontroller will send the digital value of Analog MQ-3 Alcohol Sensor to the Zig Bee through USART communication protocol. This Zig Bee transmits the digital value of Analog MQ-3 Alcohol Sensor wirelessly to another Zig Bee connected with the PC/Laptop. At the PC/Laptop end, Zig Bee receives the digital value of Analog MQ-3 Alcohol Sensor and transmits that to the PC/Laptop through a USB cable. In the PC, the RealTerm Software receives the digital value of Analog MQ-3 Alcohol Sensor and displays it. In this way, the concentration of Alcohol is monitored from the PC/Laptop.

Now, we will place cotton dipped in Alcohol/Spirit near Analog MQ-3 Alcohol Sensor and we will see the change in concentration of Alcohol in PC.

Softwares Required

Hardwares Required

Name Quantity
AVR Trainer Board-100 with ATmega16 1pc
AVR USB Programmer 1pc
Analog MQ-3 Alcohol Sensor Board 1pc
XBee Series 2 (Configured Pair) 1pc
Zig Bee Base Board with USB Interface 1pc
12V, 1A DC SMPS Adaptor 1pc
USB AM-BM Cable 1pc
10 to 10 FRC Female to Female Connector 1pc
1 to 1 Connector-Female to Female 7pc

Circuit Diagram

Video

Downloads

PC and Analog MQ-3 Alcohol Sensor based Wireless Alcohol Monitoring System with ATmega16 using Series 2 Zig Bee
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