Arduino Workshop is a free Android app developed by Peter Ho, which offers a comprehensive guide to Arduino projects. It is categorized under Education & Reference and offers a range of projects that cover various categories, including Display, Sensors, Automation, and Internet-of-Things projects.

The Display projects category includes projects for different types of LCDs, OLEDs, and TFT displays. The Sensors projects category offers projects that use various sensors such as PIR, DHT11, BMP180, 18B20, MPU6050, Pulse sensor, HC-SR04, UV sensor, and Dust sensor. The Automation projects category includes projects that allow users to control home appliances using an Android app, Google Assistant, or Siri & Shortcuts. The Internet-of-Things Projects category includes projects that post sensor data to the IoT Thingspeak website.

The app also mentions that more projects will be added soon. It is worth noting that Arduino is a trademark of Arduino AG, and all other trade names mentioned in the app or documentation provided by the app are trademarks or registered trademarks of their respective holders. The app is not related or affiliated with these companies in any way. Overall, Arduino Workshop is a useful app for beginners and enthusiasts who want to learn and experiment with Arduino projects.