This ia a home server project for my Raspberry Pi. The web app portion of this project uses Node.js/MongoDB. It's based on btford's awesome Angular Socket IO Seed. The system dashboard page shown below uses websockets to receive updates from the server as new data is collected. All of the charting is done with Chart.js.
In addition to the web app, there is a collection of worker processes, written in Python, performing some decoupled tasks. Right now there are five:
- One to check CPU temperature
- One to check memory usage
- One to check disk storage
- One to check system configuration
- One to collect news from specified sources
Each of these workers is scheduled using crontab. Holly also receives external room temperature/humidity data from another Raspberry Pi project I built called Starbug. This data is logged in the MongoDB and displayed in a couple charts also.
Holly is integrated with the Philips HUE Wireless Lighting system. This component is fairly basic at the moment. Right now it will:
- Find an existing bridge on the local network
- Handle the first time authorization/pairing process
- Present on/off buttons for each existing light in the Home section.
- While a light is on, display a slider control to change the current brightness.
An example of the controls can be found in the Home Temperature Chart screen shot below.
Holly is named after the ship's computer in one of my all-time favorite television shows, Red Dwarf. Growing up, I only caught this British Comedy/Sci-Fi sporadically on PBS, but it made a lasting impression. If it wasn't already obvious, this is definitely a work in progress. Stay tuned. :)
Holly tweets the most recent system CPU temperature as well as the most recent indoor temperature and indoor humidity readings on an hourly basis. Currently, the frequency of the tweets is not configurable from the front-end, but I have plans to work on that. Auto-tweeting requires a Twitter Developer account so that the following environment variables can be defined on the Pi:
TWITTER_CONSUMER_KEYTWITTER_CONSUMER_SECRETTWITTER_ACCESS_TOKEN_KEYTWITTER_ACCESS_TOKEN_SECRET
The following routes are used add/retreive data from the web server exposed on the local network.
GET: /api/indoor/temperature
Response:
{
_id: "5302c65d09838858dffd791d",
date: "2014-01-29T23:30:04.658Z",
fahrenheit: 79.5199993133545,
celsius: 26.399999618530273
}POST: /api/indoor/temperature
Payload:
{
fahrenheit: 79.5199993133545,
celsius: 26.399999618530273
}POST: /api/indoor/temperature/bulk
Payload:
{
temperature_data: [
{
fahrenheit: 79.5199993133545,
celsius: 26.399999618530273
},
{
fahrenheit: 79.5199993133545,
celsius: 26.399999618530273
},
{
fahrenheit: 79.5199993133545,
celsius: 26.399999618530273
}
...
]
}GET: /api/indoor/temperature/recent
URL Parameters:
- numberOfReadings - Optionally control the number of readings returned by this route. If not defined, the default number of records returned is 6.
Response:
[
{
_id: "5302c65d09838858dffd791d",
date: "2014-01-29T23:30:04.658Z",
fahrenheit: 79.5199993133545,
celsius: 26.399999618530273
},
{
_id: "5302c65d09838858dffd791c",
date: "2014-01-28T01:10:42.159Z",
fahrenheit: 83.83999862670899,
celsius: 28.799999237060547
},
{
_id: "5302c65d09838858dffd791b",
date: "2014-01-28T00:55:28.826Z",
fahrenheit: 83.30000000000001,
celsius: 28.5
}
...
]GET: /api/indoor/humidity
Response:
{
_id: "5302c65d09838858dffd7922",
date: "2014-01-28T00:55:28.829Z",
percent: 12.800000190734863
}POST: /api/indoor/humidity
Payload:
{
percent: 12.800000190734863
}POST: /api/indoor/humidity/bulk
Payload:
{
humidity_data: [
{
percent: 12.800000190734863
},
{
percent: 12.800000190734863
},
{
percent: 12.800000190734863
}
]
}GET: /api/indoor/humidity/recent
URL Parameters:
- numberOfReadings - Optionally control the number of readings returned by this route. If not defined, the default number of records returned is 6.
Response:
[
{
_id: "5302c65d09838858dffd7922",
date: "2014-01-28T00:55:28.829Z",
percent: 12.800000190734863
},
{
_id: "5302c65d09838858dffd7921",
date: "2014-01-27T03:51:23.173Z",
percent: 18.899999618530273
},
{
_id: "5302c65d09838858dffd7920",
date: "2014-01-27T03:46:53.939Z",
percent: 18.899999618530273
}
]GET: /api/system-temperature-data
Response:
{
date: "2014-01-10T23:22:24.150Z",
celsius: 40,
fahrenheit: 104,
_id: "52d080b03a62e79fbf000003",
__v: 0
}Right now, this returns the last 18 temperature readings. That limit will be moved into a URL parameter for more flexibility very soon.
GET: /api/system/temperature/recent
URL Parameters:
- numberOfReadings - Optionally control the number of readings returned by this route. If not defined, the default number of records returned is 6.
Response:
[
{
date: "2014-01-10T23:22:24.150Z",
celsius: 40,
fahrenheit: 104,
_id: "52d080b03a62e79fbf000003",
__v: 0
},
{
date: "2014-01-10T23:20:46.229Z",
celsius: 47,
fahrenheit: 116.6,
_id: "52d0804e3a62e79fbf000002",
__v: 0
},
{
date: "2014-01-10T23:05:34.437Z",
celsius: 46,
fahrenheit: 114.8,
_id: "52d07cbe3a62e79fbf000001",
__v: 0
}
]This returns an object with the current, average, min, and max temperatures.
GET: /api/system/temperature/stats
Response:
{
average:
{
celsius: 43,
fahrenheit: 109.39999999999999
},
min:
{
celsius: 40,
fahrenheit: 104
},
max:
{
celsius: 47,
fahrenheit: 116.6
}
}GET: /api/system/memory
Response:
{
date: "2014-01-14T02:00:06.058Z",
total: 485,
used: 170,
free: 315,
shared: 0,
buffers: 15,
cached: 74,
_id: "52d49a26163cb90b06000001",
__v: 0
}GET: /api/system/storage
Response:
{
date: "2014-01-14T02:00:06.455Z",
available: 3531,
used: 2238,
percent: 39,
_id: "52d49a26163cb90b06000003",
__v: 0
}GET: /api/system/config
Respoonse:
{
date: "2014-01-17T01:07:41.655Z",
arm_freq: 800,
core_freq: 250,
sdram_freq: 400,
emmc_pll_core: 1,
force_pwm_open: 1,
config_hdmi_boost: 4,
hdmi_force_hotplug: 1,
hdmi_group: 2,
hdmi_ignore_edid: "0xa5000080",
hdmi_mode: 4,
hdmi_safe: 1,
disable_splash: 1,
disable_overscan: 1,
overscan_bottom: 16,
overscan_left: 24,
overscan_right: 24,
overscan_top: 16,
pause_burst_frames: 1,
program_serial_random: 1,
second_boot: 1,
temp_limit: 185,
_id: "52d8825d858ee93205000004",
__v: 0
}Get latest Starbug temperature data
GET: /api/starbug/temperature
Response:
{
date: "2014-01-10T23:22:24.150Z",
celsius: 40,
fahrenheit: 104,
_id: "52d080b03a62e79fbf000003",
__v: 0
}Add Starbug temperature data
POST: /api/starbug/temperature
Response:
{
celsius: 40,
fahrenheit: 104
}Get recent Starbug temperatures
GET: /api/starbug/temperature/recent
URL Parameters:
- numberOfReadings - Optionally control the number of readings returned by this route. If not defined, the default number of records returned is 6.
Response:
[
{
date: "2014-01-10T23:22:24.150Z",
celsius: 40,
fahrenheit: 104,
_id: "52d080b03a62e79fbf000003",
__v: 0
},
{
date: "2014-01-10T23:20:46.229Z",
celsius: 47,
fahrenheit: 116.6,
_id: "52d0804e3a62e79fbf000002",
__v: 0
},
{
date: "2014-01-10T23:05:34.437Z",
celsius: 46,
fahrenheit: 114.8,
_id: "52d07cbe3a62e79fbf000001",
__v: 0
}
]Get Starbug temperature stats
GET: /api/starbug/temperature/stats
Response:
{
average:
{
celsius: 43,
fahrenheit: 109.39999999999999
},
min:
{
celsius: 40,
fahrenheit: 104
},
max:
{
celsius: 47,
fahrenheit: 116.6
}
}GET: /api/news-source/config
Response:
[
{
date: "2014-01-20T00:48:56.373Z",
url: "http://gigaom.com",
_id: "52dc72782d0a03f342000001",
__v: 0
},
{
date: "2014-01-19T18:13:03.705Z",
url: "http://www.theverge.com/",
_id: "52dc15afbe18ba0000000001",
__v: 0
},
{
__v: 0,
_id: "52db3d87b606877fb2000001",
category: "technology",
date: "2014-01-19T02:50:47.621Z",
url: "http://arstechnica.com/"
}
]POST: /api/news-source/config
Payload:
{
url: "http://www.theverge.com"
}PUT: /api/news-source/config
Payload:
{
_id: "52dc15afbe18ba0000000001",
url: "http://www.theverge.com"
}DELETE: /api/news-source/config?id=52dc15afbe18ba0000000001
GET: /api/news-articles
Respoonse:
[
{
_id: "52dde0d80983886bbae8b4e9",
title: "Microsoft reportedly paying YouTube personalities to promote Xbox One",
url: "http://www.theverge.com/2014/1/20/5328766/microsoft-reportedly-paying-youtube-personalities-to-promote-xbox-one",
summary: "In addition, a copy of the full legal agreement leaked recently, detailing the confidentiality rules partners must abide by when they sign up. Digital marketing campaign clearinghouse Poptent shows listings from January 10th inviting YouTube stars to sign up for the Machinima deal, and reports of the quiet promotion surfaced this past weekend. Poptent also lists $1 per CPM deals from back in November inviting Machinima's stars to promote the Xbox One — suggesting that this new mode of advertising has been going on since at least the console's launch. Microsoft has reportedly partnered with Machinima to quietly pay the YouTube channel's video partners to promote the Xbox One. According to Ars Technica, Machinima's affiliates could get a $3 per CPM (or $3 for every 1,000 views) bonus if they included at least 30 seconds of Xbox One footage and mentioned the console by name in their videos. We've reached out to Microsoft and Machinima for comment.",
image_url: "http://cdn0.sbnation.com/entry_photo_images/9732109/IMG_5171-1024_large_verge_super_wide.jpg",
keywords:
[
"paying",
"partners",
"personalities",
"reportedly",
"rules",
"machinimas",
"youtube",
"inviting",
"deal",
"xbox",
"video",
"promote",
"machinima",
"microsoft",
"sign"
]
}
]POST: /api/news-articles/read
Payload:
{
_id: "52dde0d80983886bbae8b4e9",
title: "Microsoft reportedly paying YouTube personalities to promote Xbox One",
url: "http://www.theverge.com/2014/1/20/5328766/microsoft-reportedly-paying-youtube-personalities-to-promote-xbox-one",
summary: "In addition, a copy of the full legal agreement leaked recently, detailing the confidentiality rules partners must abide by when they sign up. Digital marketing campaign clearinghouse Poptent shows listings from January 10th inviting YouTube stars to sign up for the Machinima deal, and reports of the quiet promotion surfaced this past weekend. Poptent also lists $1 per CPM deals from back in November inviting Machinima's stars to promote the Xbox One — suggesting that this new mode of advertising has been going on since at least the console's launch. Microsoft has reportedly partnered with Machinima to quietly pay the YouTube channel's video partners to promote the Xbox One. According to Ars Technica, Machinima's affiliates could get a $3 per CPM (or $3 for every 1,000 views) bonus if they included at least 30 seconds of Xbox One footage and mentioned the console by name in their videos. We've reached out to Microsoft and Machinima for comment.",
image_url: "http://cdn0.sbnation.com/entry_photo_images/9732109/IMG_5171-1024_large_verge_super_wide.jpg",
keywords:
[
"paying",
"partners",
"personalities",
"reportedly",
"rules",
"machinimas",
"youtube",
"inviting",
"deal",
"xbox",
"video",
"promote",
"machinima",
"microsoft",
"sign"
]
}POST: /api/news-articles/ignore
Payload:
{
_id: "52dde0d80983886bbae8b4e9",
title: "Microsoft reportedly paying YouTube personalities to promote Xbox One",
url: "http://www.theverge.com/2014/1/20/5328766/microsoft-reportedly-paying-youtube-personalities-to-promote-xbox-one",
summary: "In addition, a copy of the full legal agreement leaked recently, detailing the confidentiality rules partners must abide by when they sign up. Digital marketing campaign clearinghouse Poptent shows listings from January 10th inviting YouTube stars to sign up for the Machinima deal, and reports of the quiet promotion surfaced this past weekend. Poptent also lists $1 per CPM deals from back in November inviting Machinima's stars to promote the Xbox One — suggesting that this new mode of advertising has been going on since at least the console's launch. Microsoft has reportedly partnered with Machinima to quietly pay the YouTube channel's video partners to promote the Xbox One. According to Ars Technica, Machinima's affiliates could get a $3 per CPM (or $3 for every 1,000 views) bonus if they included at least 30 seconds of Xbox One footage and mentioned the console by name in their videos. We've reached out to Microsoft and Machinima for comment.",
image_url: "http://cdn0.sbnation.com/entry_photo_images/9732109/IMG_5171-1024_large_verge_super_wide.jpg",
keywords:
[
"paying",
"partners",
"personalities",
"reportedly",
"rules",
"machinimas",
"youtube",
"inviting",
"deal",
"xbox",
"video",
"promote",
"machinima",
"microsoft",
"sign"
]
}GET: /api/article-keywords
Response:
[
{
word: "service",
score: 1,
_id: "52ddfecffc1a6c1a09000011",
__v: 0
},
{
word: "experience",
score: 2,
_id: "52ddfecffc1a6c1a09000012",
__v: 0
},
{
word: "music",
score: 3,
_id: "52ddfecffc1a6c1a09000013",
__v: 0
},
{
word: "login",
score: 2,
_id: "52ddfecffc1a6c1a09000014",
__v: 0
},
{
word: "available",
score: 1,
_id: "52ddfee4fc1a6c1a09000018",
__v: 0
}
]GET: /api/bustracker/routes
Response:
[
{
route: "1",
routeName: "Bronzeville/Union Station"
},
{
route: "2",
routeName: "Hyde Park Express"
},
{
route: "3",
routeName: "King Drive"
},
{
route: "4",
routeName: "Cottage Grove"
},
...
]GET: /api/bustracker/directions?route=<route>
Response:
[
"Northbound",
"Southbound"
]GET: /api/bustracker/stops?route=<route>&direction=<direction>
Response:
[
{
stopID: "17773",
stopName: "Desplaines & Fulton/Milwaukee/Kinzie",
latitude: "41.888009687847",
longitude: "-87.644301652908"
},
{
stopID: "5520",
stopName: "Fulton & Desplaines",
latitude: "41.886835573972",
longitude: "-87.644060254097"
},
{
stopID: "5518",
stopName: "Jefferson & Lake",
latitude: "41.885573577175",
longitude: "-87.64274597168"
},
...
]GET: /api/bustracker/predictions
Response:
[
{
title: "8 - Southbound",
predictions: [
{
type: "A",
time: "08:56",
distanceToStop: "9376",
delayed: false
},
{
type: "A",
time: "09:14",
distanceToStop: "28635",
delayed: false
}
]
},
{
title: "10 - Southbound",
predictions: [
{
type: "A",
time: "08:58",
distanceToStop: "1838",
delayed: false
}
]
},
...
]GET: /api/bustracker/favorites
Response:
[
{
stopID: "1100",
route: "10",
_id: "52fc46b912b1c55b92000001",
__v: 0
},
{
stopID: "386",
route: "20",
_id: "52fc47641d07cc2293000001",
__v: 0
},
{
stopID: "1115",
route: "29",
_id: "52fc472f645abde092000001",
__v: 0
},
...
]POST: /api/bustracker/favorites
Payload:
{
stopID: "1100",
route: "10"
}DELETE: /api/bustracker/favorites?id=<_id>