Question

The goal is to make an outer planet watch. Use the SW tool to create eight seven-segment displays as shown below. LED1, LED2, LED3, LED4, LED5, and LED6 are defined in order from left to right. Like our planet, the concept of second, minute, and hour are the same. However, some basic differences are explained in detail here. -SW0 is used to switch modes following the sequence: time and stopwatch. 1. LED 5-6 (seconds) These are used to display seconds. The unit of a second is modulus 3 in daytime and modulus 5 at nighttime. In daytime, in Modulus 3, the clock increments as 0, 3, 6, 9... and counts till 60 (temporary state). When it reaches 60, the minute will decrease by one (LED3-4). At nighttime, in Modulus 5, the clock increases as 0, 5, 15... and counts till 75. When it reaches 75 (temporary state), the minute will decrease by one (LED 4-5). 2. LED 3-4 (minutes) These are used to display minutes. On an extraterrestrial planet, every minute decreases by one every 60 or 75 seconds. 1 hour is 30 minutes. It decreases as 30, 29, 28, 27..., 0 (30 is a temporary state). If it is 30, the hour unit is incremented by two. Make sure to have a switch to insert any value. 3. LED 2 (hour) This is used to display the hour. This is a single number and the hour increases by two (in a 30-minute hour, it will increase by 2). Make sure to have a switch to insert any value. The hour has 6 states starting at 00. 4. LED 1 (hour) Display "d" for daytime and "n" for nighttime. Make sure to have a switch to insert any value. - Setting: users can set to any desired AM/PM, an hour, a minute, but not a second. In this mode, users can set AM/PM first. If SW1 is pushed on, users can set an hour. If SW1 is pushed again, users can set a minute. If SW1 is pushed again, users can set AM/PM, and so on. - Stopwatch: In this mode, initially all LEDs display S9:59:59. If SW1 is paused, you can set the hour (LED2). If SW1 is paused again, you can set minutes (LED 3-4). With SW0, you can switch between the stopwatch and the main clock. When you press SW0 again, the stopwatch will run.

          The goal is to make an outer planet watch. Use the SW tool to create eight seven-segment displays as shown below. LED1, LED2, LED3, LED4, LED5, and LED6 are defined in order from left to right. Like our planet, the concept of second, minute, and hour are the same. However, some basic differences are explained in detail here. -SW0 is used to switch modes following the sequence: time and stopwatch. 1. LED 5-6 (seconds) These are used to display seconds. The unit of a second is modulus 3 in daytime and modulus 5 at nighttime. In daytime, in Modulus 3, the clock increments as 0, 3, 6, 9... and counts till 60 (temporary state). When it reaches 60, the minute will decrease by one (LED3-4). At nighttime, in Modulus 5, the clock increases as 0, 5, 15... and counts till 75. When it reaches 75 (temporary state), the minute will decrease by one (LED 4-5). 2. LED 3-4 (minutes) These are used to display minutes. On an extraterrestrial planet, every minute decreases by one every 60 or 75 seconds. 1 hour is 30 minutes. It decreases as 30, 29, 28, 27..., 0 (30 is a temporary state). If it is 30, the hour unit is incremented by two. Make sure to have a switch to insert any value. 3. LED 2 (hour) This is used to display the hour. This is a single number and the hour increases by two (in a 30-minute hour, it will increase by 2). Make sure to have a switch to insert any value. The hour has 6 states starting at 00. 4. LED 1 (hour) Display "d" for daytime and "n" for nighttime. Make sure to have a switch to insert any value. - Setting: users can set to any desired AM/PM, an hour, a minute, but not a second. In this mode, users can set AM/PM first. If SW1 is pushed on, users can set an hour. If SW1 is pushed again, users can set a minute. If SW1 is pushed again, users can set AM/PM, and so on. - Stopwatch: In this mode, initially all LEDs display S9:59:59. If SW1 is paused, you can set the hour (LED2). If SW1 is paused again, you can set minutes (LED 3-4). With SW0, you can switch between the stopwatch and the main clock. When you press SW0 again, the stopwatch will run.

Added by Denise K.

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