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Uploading data over the Internet using ThingSpeak
11/22/2018 at 07:01 • 0 commentsI used ThingSpeak's web servers to upload the sensor's readings over the Internet, since I needed values every minute or so and not every second, so I easily got to use ThingSpeak for free. Here are some sample readings I got:
I'm reading the parameters such as, voltages, LDR value, Humidity and Temperature and can easily be plotted using ThingSpeak.
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Tested Sensors with LCD
09/17/2018 at 12:45 • 0 commentsSo, I connected all the sensors on NodeMCU and displayed their data on a 16x2 LCD. In the video below I used lighter on temperature sensor DS18B20 and the effect can be seen on LCD, as the temperature rises from 30 °C to 35 °C. Later I test the LDR sensor by blocking the light and the result can be observed on LCD.