Python is a highly readable language that is easy to use and learn hence it is gaining popularity as an education language. However, this should not lead anyone to consider it a child’s language for it is not. It is very powerful, flexible and platform independent. It supports many styles of programming from scripting and web design to GUI/Game development.
The Sense Hat from Raspberry Pi was developed as part of the Astro Pi Project. The Sense Hat comes with its own library and a variety of hardware including: a 8×8 RGB LED matrix for output; a five-button joystick for user control; and the following sensors:
- Gyroscope used to measure the positioning of an object
- Accelerometer used to measure the rate of the velocity of an object
- Magnetometer that provides an electronic compass
- Barometric pressure
The purpose of this page is a quick guide to using the different aspects of the Sense Hat but for full details you should check out the API.
MySql – Insert
Inserting rows into MySql can be done in a couple of ways. You can use the INSERT…VALUES and INSERT…SET commands.
The Zumo Robot shield comes with a buzzer that can be used to signify events or actions.
MySql – Feedback
Getting helpful feedback from MySQL when it errors is possible if you use the following:
mysql_query($sql) or die('Some useful message:' . mysql_error() );
MySql – Relationships
Dealing with relationships in MySql is not as straightforward as either MS Access or as you would have hoped for. Creating simple primary keys isn’t too difficult