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New features, refinements, and basic Pi features

This commit is contained in:
Phil Howard 2015-03-21 22:16:06 +00:00
parent e8ce0a8688
commit b642be2dc7
12 changed files with 252 additions and 38 deletions
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31
description/overlay/arduino-spi.md Normal file
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@ -0,0 +1,31 @@
#ATmega 328p / Arduino over SPI
###Did you know that your Pi could power and program an ATmega 328p/Arduino directly, with nothing but a few wires, a breadboard, a 16Mhz crystal oscillator and some 22pF capacitors?
Read my [complete Pico PiDuino tutorial](http://pi.gadgetoid.com/article/building-the-pico-piduino) to get started for just over £5
You'll need to install [Gordon's modified AVRDude](https://projects.drogon.net/raspberry-pi/gertboard/arduino-ide-installation-isp/).
Connect 8/CEO to your ATmega's Reset/RST pin, 9/MISO to its MISO pin (D12), 10 to its MOSI pin (D11) and 11/SCLK to its SCLK pin (D13).
Power your ATmega with the 3.3v and GND pins from your Pi, and you're good to go.
Make sure you have no rogue SPI device drivers running and check it's connected correctly using:
```bash
avrdude -p m328p -c gpio
```
To get started compiling Arduino sketches from the command line:
```bash
sudo apt-get install arduino arduino-mk
```
This basic Makefile should get you started. Create a basic sketch, name it mysketch.ino and run:
```bash
export BOARD=atmega328
make
avrdude -p m328p -c gpio -e -U flash:w:build-cli/Arduino.hex
```

26
description/overlay/i2c.md Normal file
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@ -0,0 +1,26 @@
#I2C - Inter Integrated Circuit
The Raspberry Pi's I2C pins are an extremely useful way to talk to many different types of external peripheral; from the MCP23017 digital IO expander, to a connected ATmega.
You can verify the address of connected I2C peripherals with a simple one-liner:
```bash
sudo apt-get install i2c-tools
sudo i2cdetect -y 1
```
You can access i2c from Python using the smbus library:
```bash
sudo apt-get install python-smbus
```
And then in Python:
```python
import smbus
DEVICE_BUS = 1
DEVICE_ADDR = 0x15
bus = smbus.SMBus(DEVICE_BUS)
bus.write_byte_data(DEVICE_ADDR, 0x00, 0x01)
```

26
description/overlay/spi.md Normal file
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@ -0,0 +1,26 @@
#SPI - Serial Peripheral Interface
###Known as the four-wire serial bus, SPI lets you daisy-chain multiple compatible devices off a single set of pins by assigning them different addresses.
A simple example of an SPI peripheral is the MCP23S17 digital IO expander chip Note the S in place of the 0 found on the I2C version. Using it in WiringPi2 is a doddle:
```python
import wiringpi2 as wiringpi
HIGH = 1
OUTPUT = 1
PIN_BASE = 65
SPI_ADDR = 0x20
wiringpi.wiringPiSetup()
wiringpi.mcp23S17Setup(PIN_BASE,SPI_ADDR)
# 16 pins including the starting pin
mcp23S17pins = range(PIN_BASE,PIN_BASE+15)
for pin in mcp23S17pins:
wiringpi.pinMode(pin,OUTPUT)
wiringpi.digitalWrite(pin,HIGH)
```
You can also use the SPI port to "Bit-Bang" an ATmega 328, loading Arduino sketches onto it with Gordon's modified version of AVRDude.
Hook up you Pi's SPI port to that of your ATmega, and power the ATmega from the 3.3v pin on the Pi. Make sure you're not running any SPI device drivers, and run "avrdude -p m328p -c gpio" to verify the connection.
See the individual pins to learn how to connect up your ATmega.

16
description/overlay/uart.md Normal file
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@ -0,0 +1,16 @@
#UART - Universal Asynchronous Receiver/Transmitter
###The 2 UART pins in WiringPi are: 15, 16
UART is a handy, straight forward way to interface an Arduino ( or bootloaded ATmega ) with your Pi. You must, however, be careful with logic-levels between the two devices: the Pi is 3.3v and the Arduino is 5v. Connect the two and you might conjure up some magic blue smoke.
Personally I'm a fan of building out a Arduino Bootloaded ATmega 328 circuit on a breadboard with a voltage regulator to take the Pi's 5v line and convert it to 3.3v. The ATmega 328 seems to run quite happily at 3.3v using a 16Mhz crystal and you'll then have an Arduino clone with 3.3v logic.
Assuming you have WiringPi2-Python installed, the following python example opens the Pi's UART at 9600baud and puts 'hello world'
```python
import wiringpi2 as wiringpi
wiringpi.wiringPiSetup()
serial = wiringpi.serialOpen('/dev/ttyAMA0',9600)
wiringpi.serialPuts(serial,'hello world!')
```

38
generate-html.py
View File

@ -11,6 +11,10 @@ resource_url = '/resources/'
overlays = [
'spi',
'uart',
'i2c',
'arduino-spi',
'pibrella',
'explorer-hat-pro',
'explorer-hat',
@ -21,7 +25,7 @@ template = open('template/layout.html').read()
pages = {}
navs = {}
select_overlays = {}
select_overlays = []
overlays_html = ''
@ -74,7 +78,7 @@ def load_overlay(overlay):
loaded['page_url'] = slugify(loaded['name'])
pages[loaded['page_url']] = render_overlay_page(loaded)
navs[loaded['page_url']] = render_nav(loaded['page_url'], overlay=loaded)
select_overlays[loaded['page_url']] = loaded['name']
select_overlays.append((loaded['page_url'], loaded['name']))
return loaded
def load_md(filename):
@ -143,13 +147,18 @@ def render_pin(pin_num, selected_url, overlay=None):
pin_name = pin['name']
pin_text_name = pin['name']
pin_used = False
pin_link_title = []
if overlay != None and str(pin_num) in overlay['pin']:
overlay_pin = overlay['pin'][str(pin_num)]
pin_text_name = ''
#print(overlay)
pin_name = overlay['pin'][str(pin_num)]['name']
pin_name = overlay_pin['name']
pin_used = True
if 'description' in overlay_pin:
pin_link_title.append(overlay_pin['description'])
#alternates = []
#for overlay in overlays:
@ -169,8 +178,9 @@ def render_pin(pin_num, selected_url, overlay=None):
# pin_subname_text = '({})'.format(pin['name'])
pin_name = 'BCM {} {}'.format(bcm, pin_subname)
# pin_text_name = 'BCM {} {}'.format(bcm, pin_subname_text)
#if 'wiringpi' in pin['scheme']:
# wiringpi = pin['scheme']['wiringpi']
if 'wiringpi' in pin['scheme']:
wiringpi = pin['scheme']['wiringpi']
pin_link_title.append('Wiring Pi pin {}'.format(wiringpi))
# alternates.append(render_alternate('wiringpi','Wiring Pi pin {}'.format(wiringpi)))
#print(pin_type)
@ -185,13 +195,13 @@ def render_pin(pin_num, selected_url, overlay=None):
if pin_used:
selected += ' overlay-pin'
return '<li class="pin{} {}{}"><a href="{}"><span class="default"><span class="phys">{}</span> {}</span><span class="pin"></span></a></li>\n'.format(
pin_num,
' '.join(map(slugify,pin_type)),
selected,
pin_url,
pin_num,
pin_name
return '<li class="pin{pin_num} {pin_type}{pin_selected}"><a href="{pin_url}" title="{pin_title}"><span class="default"><span class="phys">{pin_num}</span> {pin_name}</span><span class="pin"></span></a></li>\n'.format(
pin_num = pin_num,
pin_type = ' '.join(map(slugify,pin_type)),
pin_selected = selected,
pin_url = pin_url,
pin_title = ', '.join(pin_link_title),
pin_name = pin_name
)
def render_nav(url, overlay=None):
@ -215,8 +225,8 @@ pins = db['pins']
overlays = map(load_overlay,overlays)
for url in select_overlays:
overlays_html += '<option value="{}">{}</option>'.format(url, select_overlays[url])
for url, name in select_overlays:
overlays_html += '<option value="{}">{}</option>'.format(url, name)
pages['pinout'] = render_overlay_page({'name':'Index','long_description':load_md('description/index.md')})

30
overlay/arduino-spi.json Normal file
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@ -0,0 +1,30 @@
{
"name": "Arduino SPI",
"description": "Program Arduino with Raspberry Pi SPI",
"pin": {
"19": {
"name": "MOSI",
"direction": "output",
"active": "high",
"description": "Master Out / Slave In"
},
"21": {
"name": "MISO",
"direction": "input",
"active": "high",
"description": "Master In / Slave Out"
},
"23": {
"name": "SCKL",
"direction": "output",
"active": "high",
"description": "Clock"
},
"24": {
"name": "CE0",
"direction": "output",
"active": "high",
"description": "Arduino Reset"
}
}
}

26
overlay/i2c.json Normal file
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@ -0,0 +1,26 @@
{
"name": "I2C",
"description": "Raspberry Pi i2c pins",
"pin": {
"3": {
"name": "Data",
"direction": "both",
"active": "high"
},
"5": {
"name": "Clock",
"direction": "both",
"active": "high"
},
"27": {
"name": "EEPROM Data",
"direction": "both",
"active": "high"
},
"28": {
"name": "EEPROM Clock",
"direction": "both",
"active": "high"
}
}
}

2
overlay/pibrella.json
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@ -1,6 +1,6 @@
{
"name": "Pibrella",
"manufacturer": "Pimoroni",
"manufacturer": "Pimoroni Vs Cyntech",
"url": "https://github.com/pimoroni/pibrella",
"description": "An all-in-one light, sound, input and output add-on board.",
"pincount": 26,

37
overlay/spi.json Normal file
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@ -0,0 +1,37 @@
{
"name": "SPI",
"description": "Raspberry Pi SPI pins",
"pincount": 5,
"pin": {
"19": {
"name": "MOSI",
"direction": "output",
"active": "high",
"description": "Master Out / Slave In"
},
"21": {
"name": "MISO",
"direction": "input",
"active": "high",
"description": "Master In / Slave Out"
},
"23": {
"name": "SCKL",
"direction": "output",
"active": "high",
"description": "Clock"
},
"24": {
"name": "CE0",
"direction": "output",
"active": "high",
"description": "Chip Select 0"
},
"26": {
"name": "CE1",
"direction": "output",
"active": "high",
"description": "Chip Select 1"
}
}
}

16
overlay/uart.json Normal file
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@ -0,0 +1,16 @@
{
"name": "UART",
"description": "Raspberry Pi UART pins",
"pin": {
"8": {
"name": "TXD / Transmit",
"direction": "output",
"active": "high"
},
"10": {
"name": "RXD / Receive",
"direction": "input",
"active": "high"
}
}
}

18
resources/pinout.css
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@ -8,6 +8,8 @@ table td, table th {border:1px solid #073642;padding:5px;}
table th {background:#073642;color:#EBE6D3;}
table * {text-align:left;font-size:13px;}
h2 {font-size:18px;margin-top:20px;}
.main-nav {
position:absolute;
right:0px;
@ -51,6 +53,7 @@ nav#gpio {
.bottom .phys {color:#002B36;}
.bottom .active .phys, .bottom :hover .phys,
.bottom .legend .phys {color:#FFF;}
#content {
float:left;
background:#EBE6D3;
@ -58,11 +61,9 @@ nav#gpio {
min-height:600px;
padding-bottom:60px;
}
#content article {
background:#EBE6D3;
padding:20px;
width:460px;
min-height:680px;
}
nav#gpio ul.top {
position:absolute;
@ -303,4 +304,13 @@ li.legend_ledborg {background:#000000;}
ul.legend li.legend_ledborg a {color:#FFFFFF;}
li.legend_clockatoo {background:#D33682;}
span.alternate {display:none;}
ol.linenums {margin-left:30px;}
ol.linenums {margin-left:30px;}
@media (min-width:1200px){
#container {
width:1200px;
}
#content {
width:700px;
}
}

24
template/layout.html
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@ -1,13 +1,14 @@
<!doctype html>
<html>
<head><script type="text/javascript">var NREUMQ=NREUMQ||[];NREUMQ.push(["mark","firstbyte",new Date().getTime()]);</script>
<head>
<title>Raspberry Pi Pinout - Rev 2 Board</title>
<meta name="description" content="The comprehensive Raspberry Pi Pinout guide for the Raspberry Pi, now with Model B+ and Pi 2" />
<link href='http://fonts.googleapis.com/css?family=Sanchez|Ubuntu+Mono' rel='stylesheet' type='text/css' />
<link href='{{resource_url}}prettify/prettify.css' rel='stylesheet' />
<link href="//netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css" rel="stylesheet">
<link href="{{resource_url}}pinout.css?v={{v}}" rel="stylesheet">
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
<!--script type='text/javascript'>
<script type='text/javascript'>
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-32070014-1']);
_gaq.push(['_trackPageview']);
@ -16,7 +17,7 @@
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script-->
</script>
</head>
<body>
<div id="container">
@ -25,7 +26,7 @@
<li><a href="https://twitter.com/gadgetoid"><i class="fa fa-twitter"></i> @Gadgetoid</a></li>
<li><a href="https://github.com/Gadgetoid/Pinout2"><i class="fa fa-github"></i> Contribute</a></li>
</ul>
<h1 class="logo"><a href="/pinout"><img src="{{resource_url}}pinout-logo.png" style="top:8px;" /></a><span>Pi</span>n<span class="out">out</span></h1>
<h1 class="logo"><a href="/pinout"><img src="{{resource_url}}pinout-logo.png" style="top:8px;" /><span>Pi</span>n<span class="out">out</span></a></h1>
<div class="overlay-container">
<span>Learn more about:</span>
<select class="overlay">
@ -45,24 +46,9 @@
</div>
<script type="text/javascript" src="http://cdn.jsdelivr.net/jquery/1.9.1/jquery-1.9.1.min.js"></script>
<script type="text/javascript" src="http://cdn.jsdelivr.net/cycle/2.9999.81/jquery.cycle.all.js"></script>
<script type="text/javascript" src="http://cdn.jsdelivr.net/prettify/0.1/prettify.js"></script>
<script src='{{resource_url}}prettify/lang-ruby.js'></script>
<script src='{{resource_url}}prettify/lang-bash.js'></script>
<script src='http://cdn.jsdelivr.net/history.js/1.7.1/history.js'></script>
<script src='http://cdn.jsdelivr.net/history.js/1.7.1/history.adapter.jquery.js'></script>
<script src='{{resource_url}}pinout.js?v={{v}}'></script>
<!--script type="text/javascript">if (typeof NREUMQ !== "undefined") { if (!NREUMQ.f) { NREUMQ.f=function() {
NREUMQ.push(["load",new Date().getTime()]);
var e=document.createElement("script");
e.type="text/javascript";
e.src=(("http:"===document.location.protocol)?"http:":"https:") + "//" +
"js-agent.newrelic.com/nr-100.js";
document.body.appendChild(e);
if(NREUMQ.a)NREUMQ.a();
};
NREUMQ.a=window.onload;window.onload=NREUMQ.f;
};
NREUMQ.push(["nrfj","bam.nr-data.net","3cd5994c2d","2368869","Jl1cQ0MODVRUSho1DAtTRkVQTiBIQRdyIzFFQltZXhQVFxlja0laRm8ZHg==",0,1,new Date().getTime(),"","","","",""]);}</script-->
</body>
</html>