# Visitors Center

Loook at the installed **UI Nodes**

* Input
  * inject
* Function
  * split
  * join
* UPM\_Sensors
* Sound
  * Text to speech
* Analysis Microsoft Cognitive Services
  * **Others**
* [Daycare Monitoring and Tracking System Using Intel Edison Development Kit](http://www.instructables.com/id/Daycare-Monitoring-and-Tracking-System-Using-Intel/?ALLSTEPS)

echo "rfkill unblock bluetooth" >> /etc/profile

```bash
npm WARN deprecated i18next-client@1.10.3: you can use npm install i18next from version 2.0.0
> bcrypt@1.0.2 install /usr/lib/node_modules/node-red/node_modules/bcrypt
> node-pre-gyp install --fallback-to-build

node-pre-gyp ERR! Tried to download(404): https://github.com/kelektiv/node.bcrypt.js/releases/download/v1.0.2/bcrypt_lib-v1.0.2-node-v46-lin 
node-pre-gyp ERR! Pre-built binaries not found for bcrypt@1.0.2 and node@4.4.3 (node-v46 ABI) (falling back to source compile with node-gyp) 
make: Entering directory '/usr/lib/node_modules/node-red/node_modules/bcrypt/build'
...
npm WARN optional dep failed, continuing fsevents@1.1.1
```