Internet of thing Digital Thermometer DS18B20

I purchased this ic a long time ago. Never had any chance of using it. But now the this small itsy bitsy integrated circuit is sending data on the internet.

You can check the link at

It is connected on a custom gateway device.

The ds18b20 can take power in two ways. The circuit that i made is using the parasite power.

This time i used clear nail pail paint over the copper trace.

ds182b20 interface schematic
ds182b20 interface schematic

printed circuit board is designed in KiCad open source EDA tool.


UPDATE : 14 September 2018

Using nail paint as a substitute for PCB lacquer is a cheap solution. It should be avoided when making a rugged PCB. If their is a lot a mechanical vibrations and stress, then the nail paint will chip away leading to oxidation.

Industrial Automation Using Internet of Things

The system will automatically monitor the industrial applications and generate alerts/alarms or take intelligent decisions using concept of IOT. The monitoring and controlling of the industrial automation is done through atmega32 microcontroller. The communication through the internet is done with the help of ESP8266 module. All the sensor data is collected and sent to the web server which processes and analyzes the data and sends a controlling response to the device for control action. The device receives the response and decodes the response message and control the stepper motor. Automation through IoT can help to get rid of the short distance communication.

Project Image
Project Image

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