An IR remote control tester can be thought of as an electronic sensor with a visual display. A text message of the IR signal being present or absent will be displayed on a visual screen. Placing an IR handheld remote control in front of an electronic sensor and pressing a button will show the presence of an infrared signal on the visual display. Here is a concept drawing of an IR remote control tester:

The IR remote control tester block diagram is an engineering development tool used to convey a complete product design using graphics. The block diagram also makes it easier to plan the breadboard for prototyping and testing of the IR remote control tester in a maker's workshop or laboratory bench. A final observation of the IR remote control tester block diagram is that the basic computer convention of inputs is on the left-hand side, the processor is located in the middle, and the outputs are placed on the right-hand side of the design layout. As...