MAX232 Boards are used to connect the MAX232 circuit to a prototype board. There is a Dual RS232 Driver/Receiver MAX232N provided on the board. This circuit is necessary for establishing RS232 communication. All available components are clearly marked on the board so that there is no need for additional schematics.
Line Follower click carries an array of five QRE1113 miniature reflective object sensors. As the name implies, Line Follower click is best used for line following robots and cars. Each one of the QRE1113 sensors consist of an infrared transmitter and infrared receiver. Digital output.