Page 361 - ARM Based Microcontroller Projects Using MBED

14.4 PROJECT 2—ANDROID—NUCLEO BOARD COMMUNICATION USING THE ESP-01 347

FIG. 14.15 Circuit diagram of the project.

14.4.5 The Construction

As shown in Fig. 14.16, the project was constructed on a breadboard and jumper wires
were used to connect the ESP-01 to the development board. Also, the relay board was
connected to the development board using jumper wires. Notice that the ESP-01 module is
not breadboard compatible and an adaptor is necessary to plug it onto a breadboard.

14.4.6 The PDL

Fig. 14.17 shows the program PDL.

FIG. 14.16 Project constructed on a breadboard.