This is only a preview of the July 2015 issue of Silicon Chip. You can view 35 of the 96 pages in the full issue, including the advertisments. For full access, purchase the issue for $10.00 or subscribe for access to the latest issues. Items relevant to "Build a Driveway Monitor, Pt.1":
Items relevant to "Install USB Charging Points In Your Car":
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Notes & Errata
ASCII Video Terminal for the Micromite (July 2014): version 1.3 of
the firmware has been released. This
fixes two bugs, including one which
caused USB data corruption in PAL
composite video mode. Escape
commands have also been added
to turn the cursor on and off (see
accompanying PDF file). The new
firmware is available from both Geoff
Graham’s website (www.geoffg.
net) and the SILICON CHIP website.
It can be loaded onto units which
have already been built using the
USB bootloader via a Windows PC.
Programmed chips supplied for this
project will use this new firmware.
6-Digit Nixie Clock, Mk2 (February
& March 2015): the daylight savings
calculations were wrong for some locations and this resulted in daylight
savings time being used year-round.
A revised version of the firmware,
coil is charged with current ready for
firing. The voltage on the coil primary
is very similar at around 300V to 360V
whether CDI or inductive ignition, so
that isn’t a problem.
More information is available at
www.worldphaco.net and www.
worldphaco.net/uploads/CAPACITIVE_DISCHARGE_IGNITION_vs_
MAGNETIC _ DISCHARGE _ IGNITION..pdf
How much power from
Class-D amplifier?
If I power the two High Power ClassD amplifier modules (SILICON CHIP,
November & December 2012) from a
Advertising Index
1910215C.hex, is available which
fixes this. Future clocks kits will be
supplied with the new firmware.
Users affected by this bug can set
the manual time-zone override so
that the unit shows the correct time
or mail their PIC32 chip to our PO
Box along with a return address for
re-programming (be sure to note that
the chip is for the Nixie Clock).
In addition, care is required when
fitting LED1 and the super-capacitor.
The IR LED supplied may have its
flat side towards the anode, not the
cathode (as is usually the case and as
shown in Fig.4). Check by referring
to the longer of its two leads, which
will be the anode.
Also, as stated in the text, be sure
to orientate the super-capacitor according to its polarity marking. Do
not rely on the depiction in Fig.4
which may not be accurate for all
super capacitors.
Next Issue
The August 2015 issue of SILICON
CHIP is due on sale in newsagents
by Thursday 30th July.
Expect postal delivery of subscription copies in Australia between July 27th and August 7th.
Altronics.................................. 66-69
Aust. Exhibitions & Events............ 10
Control Devices Group................... 3
Emona Instruments...................... 13
Front Panel Express....................... 8
Hare & Forbes.......................... OBC
Icom Australia.............................. 11
Jaycar .............................. IFC,45-52
KCS Trade Pty Ltd.......................... 7
Keith Rippon ................................ 95
LD Electronics.............................. 95
LEDsales...................................... 95
Master Instruments...................... 95
Microchip Technology..................... 9
Mikroelektronika......................... IBC
Ocean Controls............................ 23
Oatley Electronics........................ 39
Questronix.................................... 95
Radio, TV & Hobbies DVD............ 65
Sesame Electronics..................... 95
Silicon Chip Online Shop........ 88-89
Silicon Chip Subscriptions........... 19
Silvertone Electronics.................... 5
300VA 30V + 30V transformer, what
power output could I expect? (B. V.,
via email).
• Continuous power from each channel would be less than 150W into
4-ohm loudspeakers. For 8-ohm speakers, you could expect about 90W per
Tronixlabs..................................... 95
Worldwide Elect. Components..... 95
channel. For normal program signals,
you could expect up to 180W from
SC
each channel into 4-ohm loads.
WARNING!
SILICON CHIP magazine regularly describes projects which employ a mains power supply or produce high voltage. All such
projects should be considered dangerous or even lethal if not used safely.
Readers are warned that high voltage wiring should be carried out according to the instructions in the articles. When working on these projects use extreme care to ensure that you do not accidentally come into contact with mains AC voltages or
high voltage DC. If you are not confident about working with projects employing mains voltages or other high voltages, you
are advised not to attempt work on them. Silicon Chip Publications Pty Ltd disclaims any liability for damages should anyone
be killed or injured while working on a project or circuit described in any issue of SILICON CHIP magazine.
Devices or circuits described in SILICON CHIP may be covered by patents. SILICON CHIP disclaims any liability for the infringement of such patents by the manufacturing or selling of any such equipment. SILICON CHIP also disclaims any liability
for projects which are used in such a way as to infringe relevant government regulations and by-laws.
Advertisers are warned that they are responsible for the content of all advertisements and that they must conform to the
Competition & Consumer Act 2010 or as subsequently amended and to any governmental regulations which are applicable.
96 Silicon Chip
siliconchip.com.au
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