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Level 3

Crimedingdong Inc. approached us with an idea for a new home alarm system. They found out that most thiefs use a flashlight when breaking into houses. So they want us to create an alarm system that beeps when it detects light.

Specification

• Use the “Photontech i5” light sensor to detect the level of light
• When the light level is above 50 sound an alarm with the “Audiomaster Extreme” module
• Stop the alarm when it’s getting dark again
• Shine a flashlight (e.g. on your phone) to the light sensor to test your code

Help

Cable connections

• MCU1-P0 -> Light Sensor
• MCU1-X1 -> Buzzer

Hints

• Do the development in a darker room
• The “Audiomaster Extreme” beeps with a high tone if you send the number ‘30’ over XBus
• Use the TGT instruction

Solution

MCU1

tgt p0 50
+ mov 30 x0
slp 2