Search found 113 matches

by TRONICLK
Thu Jan 17, 2019 9:22 pm
Forum: Advertising
Topic: Original Genuine Kinston Pen Drives SD Cards SSD Drives in Nugegoda Kohuwala
Replies: 0
Views: 5

Original Genuine Kinston Pen Drives SD Cards SSD Drives in Nugegoda Kohuwala

If you are looking for Kingston Pen Drives, SD cards and SSD drives, we have genuine Kingston products. Please visit TRONIC.LK Kohuwala outlet. Contact 011 4 544566 or 0777 854444.

SD Cards - Life Time Warranty
Pen Drives - 5 Years Warranty
by TRONICLK
Thu Jan 17, 2019 9:19 pm
Forum: Advertising
Topic: Electronic Arduino Project Assistance/Support Sri Lanka
Replies: 0
Views: 2

Electronic Arduino Project Assistance/Support Sri Lanka

TRONIC.LK has now started providing project assistance/support for university and school students in Sri Lanka. Assistance/Support could be either full project design and development or partial work such as Arduino coding assistance. For more information, please visit our outlet in Kohuwala. Tel: 0...
by TRONICLK
Wed Dec 19, 2018 6:39 pm
Forum: Arduino
Topic: How to get 2.4" TFT touch screen shield working
Replies: 0
Views: 295

How to get 2.4" TFT touch screen shield working

If you have bought 2.4 inch 176x220 TFT LCD Display Touch Screen Shield Module for Arduino , you will find the drivers don't work straight away. The libraries are as follows. https://github.com/prenticedavid/MCUFRIEND_kbv Open MCUFRIEND_kbv.cpp and uncomment following line //#define SUPPORT_9342 //c...
by TRONICLK
Thu Dec 13, 2018 3:16 pm
Forum: Advertising
Topic: Arduino Starter Kit in Sri Lanka
Replies: 0
Views: 76

Arduino Starter Kit in Sri Lanka

If you are looking for a good and affordable Arduino Starter Kit, TRONIC.LK provides a nice starter kit that comes with nearly 25 electronic components and modules including an original Arduino UNO board (DIP version). Items are available in our Kohuwala electronic store.
by TRONICLK
Sun Nov 25, 2018 12:31 am
Forum: Arduino
Topic: Arduino Nano cheat sheet
Replies: 0
Views: 105

Arduino Nano cheat sheet

nano.pdf
(748.65 KiB) Downloaded 16 times
by TRONICLK
Sun Nov 25, 2018 12:04 am
Forum: Arduino
Topic: How to drive 100led from arduno
Replies: 6
Views: 181

Re: How to drive 100led from arduno

You better consider using FETs for these high voltage switching purposes. Or else you can use Darlintons such as TIP series.
by TRONICLK
Thu Nov 22, 2018 7:29 pm
Forum: Arduino
Topic: How to switch 12V with Arduino with Transistors or FETs
Replies: 0
Views: 74

How to switch 12V with Arduino with Transistors or FETs

So many people are asking this question, so I thought to create a topic to discuss about this. Here are the diagrams for both options.

NOTE: D4 and D2 LED symbol represent a LED set (series/parallel) which requires 12V.

1. Transistor
Transistor.JPG
Transistor.JPG (53.72 KiB) Viewed 74 times
2. FET
FET.JPG
FET.JPG (47.34 KiB) Viewed 74 times
by TRONICLK
Thu Nov 22, 2018 7:21 pm
Forum: Arduino
Topic: How to drive 100led from arduno
Replies: 6
Views: 181

Re: How to drive 100led from arduno

Hi Gihan, Your digram explains the issue very well. Basically it is not correct. Consider following options. Logic Level FET one is my favourite. NOTE: D4 and D2 LED symbol represent a LED set (series/parallel) which requires 12V. 1. Transistor switching Transistor.JPG 2. FET Switching FET.JPG I use...
by TRONICLK
Thu Nov 22, 2018 3:56 am
Forum: Arduino
Topic: How to drive 100led from arduno
Replies: 6
Views: 181

Re: How to drive 100led from arduno

Hi Gihan, First I need to understand more about how you have connected the LEDs. Can you post a drawing please. You need to mention input voltage for LEDs as well. I might suggest you to move to a darlington or better to a FET, but before all that, I need the circuit diagram to understand.
by TRONICLK
Sun Oct 28, 2018 11:23 pm
Forum: Advertising
Topic: ESP32 ESP-32 ESP12 ESP-12 ESP8266 in Sri Lanka
Replies: 0
Views: 2013

ESP32 ESP-32 ESP12 ESP-12 ESP8266 in Sri Lanka

TRONIC.LK Arduino shop in Kohuwala has the biggest collection of NodeMCU development boards. We have ESP32, ESP12, ESP8266 adapters, temperature modules, relays, game controllers, OLED display boards with battery packs, etc... Please visit us from Monday to Saturday from 9AM to 6PM.

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