Search found 256 matches

by SevenZero
Sun Jan 13, 2013 10:08 pm
Forum: Electronics & Electrical Engineering
Topic: How to make high quality PCBs with Photoresist Film Sheet
Replies: 1
Views: 4471

How to make high quality PCBs with Photoresist Film Sheet

Step by step guidance to make high quality PCBs with photoresist film sheets. The film is folding in between of two cover film, remove one side first. 1.jpg Place the film on copper board, clean the copper board with sand paper beforehand, so it's easy to stick on it, make sure the film is flat, and...
by SevenZero
Wed Jan 09, 2013 1:56 am
Forum: Arduino
Topic: How to connect NRF24L01+ 2.4GHz Module to a microcontroller
Replies: 0
Views: 3402

How to connect NRF24L01+ 2.4GHz Module to a microcontroller

Connecting to Atmega32:
rf1.png
rf1.png (64.21 KiB) Viewed 3402 times
Code:
AVRrf.rar
(48.67 KiB) Downloaded 463 times

Connecting to Arduino:
Transmitter:
rf2.png
rf2.png (36.88 KiB) Viewed 3402 times
Receiver:
rf3.png
rf3.png (43.75 KiB) Viewed 3402 times
Code:
Ardurf.rar
(6.51 KiB) Downloaded 463 times
by SevenZero
Sat Jan 05, 2013 3:12 am
Forum: Arduino
Topic: How to fix auto reset in Arduino UNO PTH with PL2303
Replies: 2
Views: 4396

How to fix auto reset in Arduino UNO PTH with PL2303

PL-2303HX provides a convenient solution for connecting an RS232-like full-duplex asynchronous serial device to any Universal Serial Bus (USB) capable host. PL-2303HX highly compatible drivers could simulate the traditional COM port on most operating systems allowing the existing applications based ...
by SevenZero
Thu Jan 03, 2013 12:02 am
Forum: Arduino
Topic: How to flash Arduino UNO bootloader
Replies: 0
Views: 2230

How to flash Arduino UNO bootloader

This guide is for programming the Arduino UNO bootloader through Atmel ICSP USB programmer. If you have a diffrent programmer such as STK500, that only requires a different interfacing. It is a known fact that it is a bit tricky to program the Arduino bootloader. But if you follow these instructions...
by SevenZero
Wed Jan 02, 2013 1:32 am
Forum: Arduino
Topic: Connecting Nokia 5110 LCD Display Module to microcontroller
Replies: 1
Views: 5110

Connecting Nokia 5110 LCD Display Module to microcontroller

If you have a Nokia 5110 LCD Display module such as the one in TRONIC.LK as below, and you need to connect it to an Arduino or another type of microcontroller based development module, here is a quick guide which will help you out. 5110d1.jpg 5110d2.jpg Connection Diagram: 5110_5.jpg Datasheet: Noki...
by SevenZero
Mon Dec 24, 2012 1:15 am
Forum: Microcontrollers
Topic: How to connect ENC28J60 Ethernet Module to Microcontorller
Replies: 0
Views: 3934

How to connect ENC28J60 Ethernet Module to Microcontorller

If you have bought ENC28J60 Ethernet Module from TRONIC.LK , you can use it to do many things such as home automation through internet, etc... Here is a quick guide on how to connect it. Schematic of the module is this. ENC.png Connect the following pins carefully to the microcontroller. ENC1.png EN...
by SevenZero
Mon Dec 24, 2012 12:16 am
Forum: ??????? ???? ?????
Topic: Does anybody brought colourfull contract lenses?
Replies: 1
Views: 5548

Re: Does anybody brought colourfull contract lenses?

My personal idea... never do this. This will bring you unnecessary trouble. I guess you have natural black eyes as a native Sri Lankan? Do you know that many Europeans who are having Green, Blue or Brown eyes are using blank lenses to make their eyes look black? Also you might have seen millions of ...
by SevenZero
Fri Dec 07, 2012 1:30 am
Forum: Arduino
Topic: DIY Arduino
Replies: 4
Views: 10734

Re: DIY Arduino

The first thing I would like to ask you is to use an original regulator. Duplicates doesn't give you 5V accurately. The other thing I would like to suggest is to download the schematics from Arduino site. Then have a look at their techniques, regulators used on achieving this task. Arduino is a very...
by SevenZero
Fri Dec 07, 2012 1:09 am
Forum: Electronics & Electrical Engineering
Topic: L298 circuit diagram for normal DC and stepper motors
Replies: 2
Views: 4429

Re: L298 circuit diagram for normal DC and stepper motors

Flyback diodes are pretty much about two issues - the amount of power they have to remove and how quickly they have to remove it. In general, you don't really have to worry too much about either of these issues with a small toy motor. I use simple rectifier diodes as they are cheap and everywhere. ...
by SevenZero
Tue Dec 04, 2012 7:04 pm
Forum: Electronics & Electrical Engineering
Topic: L298 circuit diagram for normal DC and stepper motors
Replies: 2
Views: 4429

L298 circuit diagram for normal DC and stepper motors

L298_motor.gif
L298_motor.gif (10.57 KiB) Viewed 4429 times
L298_stepmotor.gif
L298_stepmotor.gif (10.96 KiB) Viewed 4429 times
If you are from Sri Lanka, you can buy L298 IC or L298 module from TRONIC.LK.

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