/elec/propeller-clock : revision 15

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Committer: edam
Date: 2011-11-17 13:11:02 UTC
Revision ID: edam@waxworlds.org-20111117131102-ihs5tz2hynj18h0r

moved schematic and Makefile to propeller-clock dir and updated Makefile for Arduino Pro Mini w/ Atmel 168 board

files added:
COPYING

propeller-clock/propeller-clock.sch

files removed:
.bzrignore

arduino.mk

pcb.psd

project

project/propeller-clock.pro

project/propeller-clock.sch

src/analogue_clock_mode.cc

src/analogue_clock_mode.h

src/button.cc

src/button.h

src/config.h

src/drawer.cc

src/drawer.h

src/major_mode.h

src/minor_mode.cc

src/minor_mode.h

src/mode_switcher.cc

src/mode_switcher.h

src/test_mode.cc

src/test_mode.h

src/time.cc

src/time.h

src/util

src/util/Bounce.cpp

src/util/Bounce.h

src/util/DS1307.cpp

src/util/DS1307.h

src/utility

src/utility/Jamfile

src/utility/Makefile

src/utility/README.md

src/utility/StandardCplusplus.h

src/utility/algorithm

src/utility/algorithm.cpp

src/utility/associative_base

src/utility/associative_base.cpp

src/utility/basic_definitions

src/utility/bitset

src/utility/bitset.cpp

src/utility/cassert

src/utility/cctype

src/utility/cerrno

src/utility/cfloat

src/utility/char_traits

src/utility/char_traits.cpp

src/utility/climits

src/utility/clocale

src/utility/cmath

src/utility/complex

src/utility/complex.cpp

src/utility/csetjmp

src/utility/csignal

src/utility/cstdarg

src/utility/cstddef

src/utility/cstdio

src/utility/cstdlib

src/utility/cstring

src/utility/ctime

src/utility/cwchar

src/utility/cwctype

src/utility/del_op.cpp

src/utility/del_opnt.cpp

src/utility/del_opv.cpp

src/utility/del_opvnt.cpp

src/utility/deque

src/utility/deque.cpp

src/utility/eh_alloc.cpp

src/utility/eh_globals.cpp

src/utility/exception

src/utility/exception.cpp

src/utility/fstream

src/utility/fstream.cpp

src/utility/func_exception

src/utility/func_exception.cpp

src/utility/functional

src/utility/iomanip

src/utility/iomanip.cpp

src/utility/ios

src/utility/ios.cpp

src/utility/iosfwd

src/utility/iostream

src/utility/iostream.cpp

src/utility/istream

src/utility/istream.cpp

src/utility/istream_helpers

src/utility/iterator

src/utility/iterator.cpp

src/utility/iterator_base

src/utility/limits

src/utility/limits.cpp

src/utility/list

src/utility/list.cpp

src/utility/locale

src/utility/locale.cpp

src/utility/map

src/utility/map.cpp

src/utility/memory

src/utility/new

src/utility/new_handler.cpp

src/utility/new_op.cpp

src/utility/new_opnt.cpp

src/utility/new_opv.cpp

src/utility/new_opvnt.cpp

src/utility/numeric

src/utility/numeric.cpp

src/utility/ostream

src/utility/ostream.cpp

src/utility/ostream_helpers

src/utility/queue

src/utility/queue.cpp

src/utility/serstream

src/utility/set

src/utility/set.cpp

src/utility/sstream

src/utility/sstream.cpp

src/utility/stack

src/utility/stack.cpp

src/utility/stdexcept

src/utility/stdexcept.cpp

src/utility/streambuf

src/utility/streambuf.cpp

src/utility/string

src/utility/string.cpp

src/utility/string_iostream

src/utility/support

src/utility/support.cpp

src/utility/system_configuration.h

src/utility/type_traits

src/utility/typeinfo

src/utility/typeinfo.cpp

src/utility/uartbuf

src/utility/unwind-cxx.h

src/utility/utility.cpp

src/utility/utility.h

src/utility/valarray

src/utility/valarray.cpp

src/utility/vector

src/utility/vector.cpp

test/fan-test

test/fan-test/Makefile

test/led-test

test/led-test/Makefile

test/led-test/led-test.ino

test/phantom-button-presses

test/phantom-button-presses/Makefile

test/phantom-button-presses/main.ino

files renamed:
notes => Notes

test/ => fan-test/

test/fan-test/fan-test.ino => fan-test/fan-test.pde

src/ => propeller-clock/

src/propeller-clock.ino => propeller-clock/propeller-clock.pde

files modified:
electronics-information

propeller-clock/Makefile

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added added

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electronics-information

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| ¯``

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| |

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Arduino | ___ ,-|

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o----|___|--(|↘ ) T

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o----|___|--(|< ) T

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| R1 `-|

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| |

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| '----- GND

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| +-------+-------'

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| |

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Arduino | ___ ,-|

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o----|___|--(|↘ ) T

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o----|___|--(|< ) T

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| R1 `-|

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| |

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| '----- GND

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T = RC

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TRANSISTORS

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===========

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When using an NPN transistor as a switch, a typical set up might look

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something like this:

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o--------------+---- 5V

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[]

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( ) some load

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[]

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___ ,-|c

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o---[___]--b(|↘ ) T (NPN)

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R `-|e

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----+---- GND

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You would typically connect the pin to 5V to turn on the transistor.

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The current between the emitter and base turns on a larger current

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between the emitter and collector. The resistor, R, limits the

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turn-on current and prevents a short (effectively) across the

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transistor (and whatever the pin is connected to, such as an

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arduino!).

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PNP transistors were used in the days when a -5V rail was typical

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instead of a 5V rail. In this case, a typical set up would be exactly

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the same as above, but with -5V used for the top rail and a PNP

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transistor. The thing to note here is that the direction of the

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current would also have changed. Now imagine flipping this diagram

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up-side-down and offsetting both rails by +5V (so that -5V becomes GND

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and GND becomes 5V, respectively). Then you'd have this set up, which

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is a modern-day typical usage scenario for a PNP transistor.

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----+---- 5V

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___ ,-|e

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o---[___]--b(|↙ ) T (PNP)

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R `-|c

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[]

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( ) some load

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[]

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o--------------+---- GND

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In this set up, as before, a current is required between the base and

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emitter to turn on a larger current between the collector and emitter.

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But the difference this time is that the pin must be connected to

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ground to achieve this.

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CAPACITORS

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==========

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Two capacitors in parallel are equivelant to one capacitor whose

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value is the sum of the two.

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COMMON PARTS LIST AND USEFUL VALUES

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===================================

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NPN transistors

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BC548/BC547, 5V switch

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PNP transistors

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BC327/BC328, -5V switch

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LEDs

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~1.5V, ~10mA

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With 5V across them, a 560Ω resistor is required.

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DIODE

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1N4001

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Electrolytic Capacitor (Radial, 4700uF 16V)

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Maplin part no. VH57M

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Adruikno-powerable relay (DPDT, gold contacts, 5V, 27mA)

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Maplin part no. N05AW

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