haas:fall2021:common:projects:led0
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| haas:fall2021:common:projects:led0 [2021/08/27 20:54] – [Testing connectivity] wedge | haas:fall2021:common:projects:led0 [2021/08/27 21:00] (current) – wedge | ||
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| =====Background===== | =====Background===== | ||
| For this project, you will be writing a C program using the wiringPi library on the Raspberry Pi, wiring up a red LED to your breadboard and witnessing your ability to control it via software. | For this project, you will be writing a C program using the wiringPi library on the Raspberry Pi, wiring up a red LED to your breadboard and witnessing your ability to control it via software. | ||
| + | |||
| + | =====Grabbing project resources (on lab46)===== | ||
| + | I have prepared a **grabit** for resources related to this project. To obtain: | ||
| + | |||
| + | <cli> | ||
| + | lab46: | ||
| + | make: Entering directory '/ | ||
| + | '/ | ||
| + | '/ | ||
| + | make: Leaving directory '/ | ||
| + | lab46: | ||
| + | </ | ||
| + | |||
| + | At which point you can change into the newly created and populated **led0** directory. | ||
| + | |||
| + | =====Getting project resources from lab46 to your pi===== | ||
| + | Okay, you've snagged the project files on lab46. Now, how to get them to your pi? | ||
| + | |||
| + | The same way you've been juggling project files already, by using your mercurial repository! | ||
| + | |||
| + | Using the **hg** tool, be sure to **add**, **commit**, and **push** successfully on lab46. | ||
| + | |||
| + | Then, over on your pi, use **hg** to **pull** and **update** the new changes into place. Then you can proceed. | ||
| + | |||
| + | =====On your pi===== | ||
| + | Study and run this program on your pi in conjunction with testing and verifying operation of your properly hooked up electronics circuit. When done, submit it on lab46. | ||
| + | |||
| + | To utilize the needed functionality for this project, you will need to ensure you have the following packages installed: | ||
| + | |||
| + | * **build-essential** (hopefully you took care of this in ntr0) | ||
| + | * **wiringpi** | ||
| + | |||
| + | ====Installing wiringpi==== | ||
| + | An exception to the usual package installation process, especially for those with a Raspberry Pi model 4B: when you install **wiringpi** the usual way, we may end up with errors when proceeding further, such as the following: | ||
| + | |||
| + | <cli> | ||
| + | yourpi: | ||
| + | Oops - unable to determine board type... model: 17 | ||
| + | </ | ||
| + | |||
| + | What you will need to do is manually install an updated (and out of database) version of the **wiringpi** package, as follows (looking out for errors along the way): | ||
| + | |||
| + | <cli> | ||
| + | yourpi: | ||
| + | ... | ||
| + | yourpi: | ||
| + | ... | ||
| + | yourpi: | ||
| + | </ | ||
| =====Input and Output via the GPIO pins on the pi===== | =====Input and Output via the GPIO pins on the pi===== | ||
| Line 33: | Line 82: | ||
| <cli> | <cli> | ||
| - | yourpi: | + | yourpi: |
| | | ||
| | BCM | wPi | | | BCM | wPi | | ||
| Line 60: | Line 109: | ||
| | BCM | wPi | | | BCM | wPi | | ||
| | | ||
| - | yourpi: | + | yourpi: |
| </ | </ | ||
| Line 118: | Line 167: | ||
| <WRAP info>The plastic rectangle should have a notch cut out from it, and notice that the ribbon cable connector has a notch included in it. That is a key to indicate how you need to connect the ribbon cable into the T-cobbler</ | <WRAP info>The plastic rectangle should have a notch cut out from it, and notice that the ribbon cable connector has a notch included in it. That is a key to indicate how you need to connect the ribbon cable into the T-cobbler</ | ||
| + | |||
| ====(1) red LED==== | ====(1) red LED==== | ||
| You have a few LEDs included in your kit, some of notably different colours. Go for one of the distinctly red looking ones, resembling the following: | You have a few LEDs included in your kit, some of notably different colours. Go for one of the distinctly red looking ones, resembling the following: | ||
| Line 198: | Line 248: | ||
| In future projects you will start implementing more logic to attain further functionality. | In future projects you will start implementing more logic to attain further functionality. | ||
| - | |||
| - | ====Grabbing project resources (on lab46)==== | ||
| - | I have prepared a **grabit** for resources related to this project. To obtain: | ||
| - | |||
| - | <cli> | ||
| - | lab46: | ||
| - | make: Entering directory '/ | ||
| - | '/ | ||
| - | '/ | ||
| - | make: Leaving directory '/ | ||
| - | lab46: | ||
| - | </ | ||
| - | |||
| - | At which point you can change into the newly created and populated **led0** directory. | ||
| - | |||
| - | ====Getting project resources from lab46 to your pi==== | ||
| - | Okay, you've snagged the project files on lab46. Now, how to get them to your pi? | ||
| - | |||
| - | The same way you've been juggling project files already, by using your mercurial repository! | ||
| - | |||
| - | Using the **hg** tool, be sure to **add**, **commit**, and **push** successfully on lab46. | ||
| - | |||
| - | Then, over on your pi, use **hg** to **pull** and **update** the new changes into place. Then you can proceed. | ||
| - | |||
| - | ====On your pi==== | ||
| - | Study and run this program on your pi in conjunction with testing and verifying operation of your properly hooked up electronics circuit. When done, submit it on lab46. | ||
| - | |||
| - | To utilize the needed functionality for this project, you will need to ensure you have the following packages installed: | ||
| - | |||
| - | * **build-essential** (hopefully you took care of this in ntr0) | ||
| - | * **wiringpi** | ||
| - | |||
| - | ===Installing wiringpi=== | ||
| - | An exception to the usual package installation process, especially for those with a Raspberry Pi model 4B: when you install **wiringpi** the usual way, we may end up with errors when proceeding further, such as the following: | ||
| - | |||
| - | <cli> | ||
| - | yourpi: | ||
| - | Oops - unable to determine board type... model: 17 | ||
| - | </ | ||
| - | |||
| - | What you will need to do is manually install an updated (and out of database) version of the **wiringpi** package, as follows (looking out for errors along the way): | ||
| - | |||
| - | <cli> | ||
| - | yourpi: | ||
| - | ... | ||
| - | yourpi: | ||
| - | ... | ||
| - | yourpi: | ||
| - | </ | ||
| =====Compiling===== | =====Compiling===== | ||
| Line 275: | Line 276: | ||
| <cli> | <cli> | ||
| - | lab46: | + | lab46:~/src/SEMESTER/ |
| - | Submitting desig project " | + | |
| - | -> led0.c(OK) | + | |
| - | + | ||
| - | SUCCESSFULLY SUBMITTED | + | |
| </ | </ | ||
haas/fall2021/common/projects/led0.1630097653.txt.gz · Last modified: 2021/08/27 20:54 by wedge
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