Join Zahraa Khalil for an in-depth discussion in this video Checking a 7-segment LED type, part of Learning Arduino: Interfacing with Hardware.
- [Narrator] The 7-segment LED,…they come in in different size and different shapes.…One of the ways in order to know…if it's a common cathode or common anode…is checking the data sheet of the part number.…So you can check the part number for each 7-segment LED.…Another method, if you don't have access to the datasheet,…is using the multimeter.…So let's go ahead and try to use the multimeter…to test the 7-segment LED.…So I'm going to use this component.…So when using the multimeter,…the very first thing that you need to do…is using the com probe of the multimeter,…and use that in the middle pin,…which is the common pin of the 7-segment LED.…
The other thing is that you need to make sure…that you have the multimeter to the LED sign over here.…And then check it on that it has the LED sign over here.…So once you place the common pin,…use the other probe of the multimeter…in order to turn on each of the LEDs.…So I'm going to go ahead and try to see if the LED turn on.…So if you can see that once I place the anode side,…
- Interfacing with an LCD screen
- Wiring and coding the LCD interface
- Displaying random numbers on the LCD
- Interfacing with a seven-segment LED component
- Cycling through LEDs
- Using a shift register to interface with a seven-segment LED
- Interfacing with a keypad
- Combining the LCD, keypad, and LED
Skill Level Intermediate
The devices used38s
1. Interface with an LCD
2. Interface with a 7-Segment LED Directly
3. Interface with a 7-Segment LED Using a Shift Register
4. Interface with a Keypad
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