Absolute Beginner's Guide to AVR Microcontrollers

The making of a Serial Programmer (stub)

2007-05-28T03:15:00.000+06:00

For making a serial programmer for the ATmega16, we need the keep the following handy -

1) DB-9 Female -1
2) 2m wire -5
3) .5m wire -6
4) Veroboard
5) Hacksaw
6) Wire Stripper & Cutter
7) Resistance - 10k (1), 15k (1), 47k (3)

8) Zener Diode -3 (the fatty ones)

9) NPN Transistor (BC 547)

10)Soldering Iron

11)Soldering Wire

12)Soldering Paste

13)Soldering Stand

14)Desoldering Pump

15)Tray

16)Multimeter

17)Anti-cutter

How to Solder

2007-05-28T02:47:00.000+06:00

For soldering we need to have the following handy

1) Soldering Iron
2) Soldering Wire
3) Soldering Paste
4) Soldering Stand
5) Tray
6) Desoldering Pump
7) the two points we want to solder

Heres a step-by-step walk through -

1) first of all, collect all the materials and place them orderly on the tray

2) now we power the solder iron and allow it to warm for 3-5 minutes

3) then, we dip the tip of the solder iron into the soldering paste and then we hold it tightly over the place or points we want to solder (not vertically but at an angle)

4) after sometimes we place the soldering wire slightly in contact with the soldering iron and wait for a few seconds for the wire to melt a bit

5) then the soldering wire is removed, and the soldering iron is also removed

6) if, for some reason the amount of soldering wire applied at the points is too much, we again use the soldering iron to melt the soldering wire at the points and use the desoldering pump to remove the extra soldering wire

7) after removing the soldering wire, we need to redo the htings from the beginning once again

illustrations ::
none as of now..but if anyone requires one, i will be more than heppy to help :)

The buying list

2007-05-26T18:41:00.000+06:00

For all of you who are starting their game with the avr microcontroller, here's the list (with a few pictures given at the end) that all of you might consider before going to the hardware store (these things will come handy within a few days) --

(A few items will also indicate the approx. unit price in BDTK ... with the current exchange rate being 1 US$=80 BDTK approx.)

1) Breadboard -3 180tk
2) Veroboard -2 20tk
3) Wire Stripper & Cutter (2-in-1s are available) -1 250tk
4) Hack Saw -1 60tk
5) Resistance (quarter watt ratings) (5 each) - 0.25tk per piece 5,10,15,33,47,150,470,1k,4.7k,3.3k,10k,15k,18k,470k,
1M,2M,3.3M,4.7M,10M,33M,47M,100M,330M,470M
6) Capacitor (5 each) -
100pF,470pF,1nF,4.7nF,10nF,47nF,100nF,470nF,1uF,2200uF
7) Breadboard Wires -100 gram 300-500tk per kg
8) Soldering Iron -40 watt (preferably Goot) -1 450tk
9) Soldering Wire -1
10)Soldering Paste -1
11)Soldering Stand -1
12)Tape (Red & Black) -1+1
13)Crocodile Clip (without connected wire) -1 pair or more 10tk/pair
14)DB-9 Female Connector (for soldering) -1/2 (Please see picture given below the list) 20tk
15)Universal IC Bed -1pair 30tk
16)Multimeter (Digital) -1 500tk
17)9v Battery (for multimeter) -1
18)IC Extractor(not a must) -1
19)Anti-cutter-1 55tk
20)Linear Pot 47k,100k,250k,500k -1 each
21)Adapter (ac/dc) -2 100tk
22)Heat Sink -1 35tk
23)VR 7805 -3 8tk
24)VR 7812 -2 8tk
25)ULN 2803 -2 30tk
26)LED -5
27)AT mega 16 -1 250tk
28)DC Motor 6V -1 50tk
29)Switch -6
30)Tray -1
31)Multiplug -1
32)Screw Driver (+/-) -2
33)LCD 16x4 -1 450tk
34)Diode 1N4001 - 5
35)Small Box -10
36)DB-25 Female Connector (for soldering) -1/2 30tk
37)Zener Diode -5
38) Battery clip -2
39) Black Marker -1
40)MAX 232 -1 100tk
41)LM 317 -1 10tk
42)Desoldering Pump -1 50tk
43)Pliers -1 180tk

A note of caution, please be careful in buying the things on the list, because sometimes the shopkeepers might alternate these things with inferior alternatives or sell you unwanted and expensive items.

Any questions or comments are welcome at -- ahsan.jnl at gmail dot com

Also, please let me and other viewers/users know your shopping experience.

A few pics have been given below for better understanding :)

AT mega 16, Digital Multimeter

Self adjusting Cutter-Stripper, Hacksaw

Breadboard, Veroboard

Adapter, Soldering Iron

Soldering Wire, Soldering Paste

DB-9 Front, DB-9 Back

Battery Clip, Crocodile Clip

Contact Me

2007-05-25T21:51:00.000+06:00

The best way to contact me is either via email or cell. So if you'd like to say something or just a friendly hi, mail or call me. Additionally/alternately you can post a comment here. Here are the email addresses and phone number :

About Me

2007-05-24T22:58:00.000+06:00

On a certain bright sunny day I came to this earth with endless curiosity ................

Officially, born in Dhaka in the October of 1987 .. I have read in many educational institutions --

International School Tehran, Iran

Indian Senior Secondary School, Iran

Manarat International School, Dhaka

Ideal School and College, Dhaka

Notre Dame College, Dhaka

Bangladesh University of Engineering and Technology, Dhaka

Both my parents are specialized doctors, well experienced in their field. I have an elder sister who is soon going to be a doctor, too :)

I have lived in Dhaka throughout all of my Bangladesh life.

I have got some really nice frnds. a few of them happen to be ....

Jappy, Jui, Rohan,

Mahtab,Ratan, Tonmoy, Towhid, Mahmud,

Sajid, Sarja, Shaumik, Tahmid, Sunny, Surjo, Shamo, Salman,

Tawseef, Anni, Devjanee,Munia, Mamnun, Raihan, Alamin, Faisal, Sajib

Joyee, Britee, Warda, Farjana, Lopa, Dola,

Silvi, Raisa, Tahsin, Tarana, Urmee, Tuli

the list goes on ( this list, intentionally, omits senior friends)

I have certain hobbies - coin and stamp collection

My primary professional interests centre on networking, the web and game programming

I have been to a few countries e.g. Iran, India, Bahrain, UAE & Thailand

Hope this blog post will give you a, if only partial, view of me and my life :)