Practical
Electronics
Volume 49. No. 9
September 2020
ISSN 2632 573X
Contents
Projects and Circuits
Ultrabrite LED Pushbike Light
16
Design by Daniel Doyle – words by Nicholas Vinen
se a tiny
high e ficiency
driver that delivers a constant
or
. to a e a a e a very right icycle light torch or other light source.
The Micromite Explore-28 by Geoff Graham
24
lug in odule ith the o er ul
in icro ite lus a
soc et or co
s
and rogra
ing all you need to start ith the icro ite in one handy ac age.
Three Stepper Motor Drivers by Allan Linton-Smith
32
ant to uild your o n
rinter or
achine ou ll need ste er otor
drivers. ere are three o the ost co
on driver odules and ho to use the .
Series, Features and Columns
The Fox Report by Barry Fox
to
content rescue
8
Techno Talk by Mark Nelson
he erils o an en uiring ind...
10
Net Work by Alan Winstanley
ights ca era action return to the co
le
orld o
security ca eras.
Cheap and easy compact speaker enclosures by Julian Edgar
novel techni ue or uilding enclosures using clay fi re o er ots
38
Circuit Surgery by Ian Bell
i erential a lifiers
43
Make it with Micromite by Phil Boyce
art
ltrasonic o stacle avoidances
48
a s Cool eans y ax The agnificent
lashing
s and drooling engineers
art
53
PIC n
art
i by Mike Hibbett
o t are tools or the
Audio Out by Jake Rothman
o noise here in o er u
57
ly
art
Regulars and Services
Made in the UK.
Written in Britain, Australia,
the US and Ireland.
Read everywhere.
© Electron Publishing Limited 2020
Copyright in all drawings, photographs, articles,
technical designs, software and intellectual property
published in Practical Electronics is fully protected,
and reproduction or imitation in whole or in part are
expressly forbidden.
The October 2020 issue of Practical Electronics will be
published on Thursday, 3 September 2020 – see page 72.
Practical Electronics | September | 2020
12
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