MIT App Inventor for AI and IoT (E-book)

This almost 400 pages counting book offers a practical approach of learning programming Android apps for your smartphone. By a 50-tal practical examples, increasing step by step in difficulty, it explains all posibilities of using a smartphone as a human interface to make wireless connection to a Rapberry Pi Pico (2)W. By using sensors connected to the Rpi to read data from it and control actuators to take actions to the outside world, your smartphone monitors all interaction over Wifi, Bleutooth or serial communication.
A very usefull en complete book to learn all about programing Android apps for your smartpnone.