A Simple Chat device can be thought of as an electronic teleprinter. A text message can be sent to a visual display, such as the Arduino serial monitor or a typical LCD. The method of physically connecting to these visual displays can be accomplished using hardwired serial or wireless communications techniques. Creating the desired text message to send to the Simple Chat device will be accomplished using a typical notebook computer or desktop PC keyboard. These items are the basic physical requirements of our Simple Chat device. The concept drawings of two Simple Chat devices are as follows:

Serial communication-based Simple Chat device

Concept drawing of Simple Chat devices using BLE is as follows:

Wireless Bluetooth Low Energy (BLE) based Simple Chat device

Simple Chat device block diagrams are engineering development tools used to convey complete product designs using graphics. The block diagrams also make it easier to plan the breadboard for prototyping...