Embedded_Khiladi

Abstract Summer is showing its warm red color. We already know trees make much difference in temperature and weather. Even we have felt that as well. This small exercise of temperature monitoring was carried out to see technically how much relief the Green of trees gives against the Red hot of summer. We also learn how easy it is to make our own temperature monitoring device that can report temperature readings to the cloud through WiFi connectivity and can easily access readings through a mobile phone .   How to make our own temperature monitoring device. We can order below items online to make a Temperature monitoring device with internet connectivity. 1. ESP32 or ESP8266 for WiFi connectivity 2. DHT11 temperature and humidity sensor 3. Power bank to supply 5 V ( you might already have this) 4. Jumper cables For the software part, we will use Arduino IDE. We  will use DHT 11 Arduino library for DHT 11 temperature sensor and Firebase library for internet connectivity, there ...

I am using my homemade solar charger for my batteries and mobile. And you? Here is the simplest way of making it: I had one 3W 12V solar panel, I could not use the output of the solar panel directly to charge the battery. The power supply required to charge mobile phones and batteries needs to be smooth regulated 5 volts. So First I tried to make the power supply regulator using the old mobile charger. you can take out the rectifier portion and use the regulator of the old charger to give the 12v unregulated output of the solar panel. Later, I found one old car mobile charger that uses 12v from the battery and gives 5v output. my purpose solved!! I gave output from solar panel to car charger's 12 v input. that's all. Solar panel costs 400 and Car mobile charger 150, so total 550, and some soldering. or if we use a regular old mobile charger then it will cost just 450. Image: solar panel Image: Car mobile charger Image: our system charging a power bank