Making a calculator using Arduino and 4 * 4-project code Keypad

There are 2 codes and each of those codes is available in 2 formats -

1. Text file - ".txt" format
2. Arduino file - ".ino" format

You are ordering a Digital Product that will be emailed to you as soon as you complete the order purchase. This is not a Physical Product and do not confuse this Digital Product with any Physical Product.

What is a Digital Product?

By Digital Product we mean that the product that you order is a file and not a Physical Product. It can be a pdf, txt, ppt, jpg, zip, or other similar file formats.

Types of Digital Products?

We sell various types of Digital Products -

• Project Codes
• Circuit Diagram
• Datasheets(These are all free of cost)

Note - We might add more types of Digital Products in the future and these policies might also be applicable to those products.

Digital Product Policies - 

• All the digital products that we sell are neither refundable nor cancellable.
• Once an order is successfully placed, no refund shall be initiated for any reason.
• You might consider buying any Digital Product in N number of quantities as per your choice or requirements, but we might suggest you keep the quantity as 1 because the same product file will be emailed if you enter a quantity more than 1.
• We are not responsible if you order the digital product considering it as a physical product and no refund shall be initiated.
• We highly recommend you read the product description before buying a digital product.
• Make sure you have gone through all the policies for buying any digital product.