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Remove FAQ, there is no time for that. Focus on development.

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Krisjanis Rijnieks 8 years ago
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# Frequently Asked Questions
This document might contain answers to your questions regarding ofxPiMapper and life in general.
## 1. How to launch ofxPiMapper on boot?
It depends whether you are using the addon example or are integrating ofxPiMapper into your application. In both cases you will have to run `make` to compile the binary.
### 1.1. Compile
Make sure that you understand whether you are using the example or building your own. Use `cd` to navigate to your project directory on the Raspberry Pi. In case you are using the example, the command to use should be similar to the following.
```bash
cd /home/pi/openFrameworks/addons/ofxPiMapper/example
```
Compile. Run the following command to do that.
```bash
make
```
The compiled binary of the application should appear in the `bin` directory of the project. Run the following command to launch the application.
```bash
/home/pi/openFrameworks/addons/ofxPiMapper/example/bin/example
```
### 1.2. Set up Cron
Cron is a job scheduler on UNIX-like systems. We are going to use the super user crontab to launch ofxPiMapper on boot. Use the following command to edit the crontab.
```bash
sudo crontab -e
```
If using it for the first time, you will be prompted to choose the text editor you want to use. Select "nano". Proceed. Add the following line in the file.
```
@reboot /home/pi/openFrameworks/addons/ofxPiMapper/example/bin/example
```
Hit `ctrl` + `x` to exit. Hit `y` to confirm changes of the file and `enter` to confirm the existing name of the file.
Congratulations! OfxPiMapper should start up after next system reboot.
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