eLearn.Punjab

is the official repository of digitized textbooks of Punjab. Each book has been augmented with Video Lectures, Illustrations, Animations, Simulations and Interactive Assessments. Through this website, you can access 21 Science and Maths textbooks for Grade 6-10 which have been augmented with 13,047 Video Lectures, 592 Simulations , 2100 Audio minutes and 1,830Animations. eLearn.Punjab is developed by Punjab Information Technology Board (PITB) in collaboration with Punjab Curriculum & Textbook Board and the School Education Department (SED) 

Click here for updates about the rollout of eLearn.Punjab in schools across Punjab.

Digitized textbooks of Punjab Curriculum & Textbook Board (PCTB) for Grade 6-12th (Science & Math) are now one click away!

eLearn App is now available on Web & Google Play Store. eLearn's instant Web App can be accessed from your mobile phone browser and the Android App can also be installed from Google Play store.
Link to eLearn Website and Web app: https://elearn.punjab.gov.pk/ 

Read More

PIC16F877A and LM35 Based Temperature Monitor

PIC16F877A and LM35 Based Temperature Monitor

Interfacing LM35 Temp sensor with PIC16F877A Microcontroller

Why we chose PIC16F877A not 8051 Microcontroller?

The answer is simple in this project we are using LM35 sensor which is analog sensor here we need another IC Analog to Digital to convert the sensor analog reading in to digital so If you are going to chose 8051 microcontroller for this project you must attach another A2D ic because 8051
have no bulletin A2d converter but Pic microcontroller have so that’s why we select PIC16F877A instead of 8051 because it’s easy, cheap and simple.

Sensor LM35 pin out?

This is Temperature sensor which you can get easily from the market with low price The LM35 pin out is so simple the first pin is for input power maximum 5v Dc and the Middle pin is for Analog input and the third pin is for Ground

10mV ===> 1C
20mV ======> 2C
370mV ====> 37.0C and so on…...

Software and Other Tools :

First you need to install the Proteus vsm on your computer the good news is that you people can download Proteus Setup free from our blog and the second one is PIC-C compiler where you people can compile the C-code and will get the Hex file.

Schematic :

The Relay Load Is optional if you want to connect Load so go ahead .....

Hardware Level :

After completing everything at the software level then you can go easily at hardware side at hardware
you just need Pickit 2 Burner just put ic and Burn program on it and enjoy ...

Finally the Code :

Download everything the full package in Zip File

1) PDF documents

2) pic-c Compiler

3) code hex file

4) Proteus simulation
i upload the Zip file to GoogleDrive

just one click & Download Now

if You have any Question Regarding this Project so you can Ask anytime  leave a comment...

Read More

Simple UPS

This is the circuit diagram of a simple UPS that can deliver 12V unregulated and 5V regulated DC. The transformer T1 steps down the mains voltage to 12V AC and then the bridge B1 rectifies it. The rectified signal is smoothed by the capacitor C1.When the mains supply is available the battery will be charged via diode D3 and the regulator IC gets supply via diode D5. 12V and 5V DC will be available at

Read More