Each website has lots more videos and you can see exactly how the
circuits work. But there is nothing like building the circuit and that's
why you need to re-enforce your knowledge by ACTUAL
CONSTRUCTION.
Learning Electronics is like building a model with Lego bricks. Each
"topic" or "subject" or "area" must be covered fully and perfectly, just
like a Lego brick is perfect and fits with interference-fit to the next
block. When you complete this eBook, you can safely say you will have
mastered the 555 - one more "building block" under your belt and in the
process learn about DC motors, Stepper motors, servos, 4017 chips,
LEDs and lots of other things. Any one of these can take you off in a
completely different direction. So, lets start . . .
Colin Mitchell
TALKING ELECTRONICS.
To save space we have not provided lengthy explanations of how any of
the circuits work. This has already been covered in TALKING
ELECTRONICS Basic Electronics Course, and can be obtained on a
(posted to anywhere in the world) See Talking Electronics
http://www.talkingelectronics.com
) for more details on the
555 by clicking on the following four pages:
Many of the circuits have been designed by Colin Mitchell:
,
,
while others are freely available on the web. But this
eBook has brought everything together and covers just about every
novel 555 circuit. If you think you know everything about the 555, take
the
SI NOTATION
All the schematics in this eBook have components that are labelled
using the System International (SI) notation system. The SI system is an
easy way to show values without the need for a decimal point.
Sometimes the decimal point is difficult to see and the SI system
overcomes this problem and offers a clear advantage.
Resistor values are in ohms (R), and the multipliers are: k for kilo, M for
Mega. Capacitance is measured in farads (F) and the sub-multiples are u
for micro, n for nano, and p for pico. Inductors are measured in Henrys
(H) and the sub-multiples are mH for milliHenry and uH for microHenry.
A 10 ohm resistor would be written as 10R and a 0.001u capacitor as 1n.
The markings on components are written slightly differently to the way
they are shown on a circuit diagram (such as 100p on a circuit and 101
on the capacitor) and you will have to look on the internet under Basic
Electronics to learn about these differences.
NEW!
FROM TALKING
ELECTRONICS
A new range of 555 chips have been designed by Talking Electronics to
carry out tasks that normally need 2 or more chips.
These chips are designated: TE 555-1, TE555-2 and the first project to
use the TE 555-1 is