Search Results for "countdown"

...The system utilizes the Arduino Uno/Nano to report on local weather conditions (temperature, humidity, barometric pressure). The system also provides a 10-second countdown when the fire button is pressed. The system meets and exceeds the NAR Safety Code standard for model rocket launch systems as it incorporates a removable key to block the flow of power to the launch pad. It incorporates an additional two-button safety system to ensure that a launch is conducted exactly at the desired time. ...

Multiplication Station will teach your child to add, subtract and multiply. All parameters configurable, like grid size and number ranges fonts and colors. Countdown timer keeps attention focused. High scores too.