Hall- vs Reedsensor What is the difference between a Hall sensor and a Reed sensor? This and much more (e.g. function of sensors and where they are used) is explained in the following worksheet.

Acoustic sensor Task Use the acoustic sensor to program a clapper switch, which activates a LED when you clap your hands. By means of a relay, also lights or other household devices can be switched (TV, HiFi system, coffeemaker, ...). For advanced users: To ensure that the switch is not [...]

Reed switch Task Use a reed switch and program a simulated alarm system. If a magnet is near the reed switch, everything is OK. If the magnet is removed, a LED is flashing (or a buzzer sounds). In reality, the reed switch is integrated in the window frame and the [...]

LCD Display Task The LCD display can be used in your programs to display the temperature, variables, sensor values and much more. If you need any help, take a look into the worksheet or watch the tutorials. Blockcode [...]

Ultrasonic sensor Task Use the ultrasonic sensor and program your own distance alert (similar to parking assistance in a car). If the distance exceeds 12cm, the green LED is flashing (or OK at display), if the distance is between 6cm and 12cm, the yellow LED is flashing (or "Attention" at [...]