Sinhala Kumarage L. Profile

4,8

(36 értékelés)

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$30 USD / óra

kotte,

sri lanka

$30 USD / óra

Itt jelenleg ennyi az idő: 8:11 du.

Ekkor csatlakozott: július 12, 2009

7 ajánlás

Sinhala Kumarage L.

@EEmbedded

4,8

(36 értékelés)

7,0

82%

$30 USD / óra

kotte,

sri lanka

$30 USD / óra

93%

Teljesített megbízások

100%

Költségvetésen belül

79%

Határidőn belül

22%

Ismételt megbízási arány

Electronic and Electrical system designs

We provide personal Technical Support to product developments for Inventors and Entrepreneurs. We have extensive experience with 32/16/8-bit microcontrollers and processors from: - ST Micro STM32F series), ST micro (STR7 series), - Atmel (AVR, ATmega, ATtiny, AT91SAM), - Microchip (PIC32, PIC18F, PIC16F, dsPIC etc), - Texas instruments TI ( MSP432, CC3220, CC3120, CC2640R2F, CC1350, CC1310) We are contract manufacturers of PCBs and PCB Assembly with all required Product Certification for USA, Japan, Australia and EU. Applications - PC Applications ( Visual Studio, Java ) - Android Applications (Android Studio, Eclipse) - iOS Applications (Swift) - PCB - Altium Designer, Proteus, Eagle CAD Soft, Fritzing - Microcontroller - Arduino, IAR EWB, CCS, GNU Tool Chain - Communication - Bluetooth Low Energy, WiFi, GSM, Zigbee, RF, SATCom - BPM - Bonitasoft BPM

Az összes Electronics Engineers mutatása itt: Sri Lanka

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Portfólió

3702036

Bluetooth Low energy Device is gathering data from sensors and send that data to Android App automatically

Bluetooth Sensor device and APP

Commercial samples of Bluetooth LE client and Master modules.

Bluetooth Low Energy Product Development

3701990

This Bluetooth Low Energy dongle accept characters from Android App and send them to PC like normal HID Keyboard.

Bluetooth Low Energy Dongle work as HID Keyboard

Texas Instrument CC2541 chip Based BLE Beacons and LiPo Battery charger for Proximity Android APP project.

Bluetooth Low Energy Tags

1729851

This was developed for calculate Air Filter life of Air Purification Systems of Surgical Environment.

Project Content
1. PCB design
2. Firmware Development
3. Prototype Development
4. Production of 1000 units

Air Filter Life time Diaplay

Features of Device
1. Temperature control using PID loop
2. Battery operated
3. Temperature Data logging 15000 samples with time stamp.
4. Connects PC through USB port
5. Set point adjustment via PC Software
6. Graph for past data

Portable Temperature stabilizer for Medical Samples

3702036

Bluetooth Sensor device and APP

Bluetooth Low Energy Product Development

3701990

Bluetooth Low Energy Dongle work as HID Keyboard

Bluetooth Low Energy Tags

1729851

Air Filter Life time Diaplay

Portable Temperature stabilizer for Medical Samples

Értékelések

Változtatások elmentve

1 - 5 / 35 értékelés látható

Vélemények szűrése ez alapján:

1,0

£555,00 GBP

Project 15605092 has been deleted

communication is very poor very slow

Adam F.

@Fiddu8

•

6 évvel ezelőtt

4,4

$5 000,00 USD

Design a massage table pressure sensor with wireless ready light -- 2

I enjoyed the process of working with Lasantha

Randy H.

@RandyHill

•

7 évvel ezelőtt

5,0

$2 186,00 USD

Create a Android App to connect to BLE chip and program the chip CC2541 or other to get information from analog input and digital input

It was my first time to use freelancer, when I published my project, I received a lot of bids to do it. When I started talking with lasantha (Embedded), He understood immediately the project, by the way, he always gave me a support, feedback and how is the best way to solve the requirements. At the end, I got the excellent work. Lasantha and his mates have a very good skills to develop bluetooth 4.0 communication, programming cell phones app, and drawing of final diagram of A-PCB. I sent the A-PCB to my supplier in china, to manufacture it. I received the A-PCB without problem, miniaturized layout, lowest consumption, lasting battery draining, all the requirements were covered. I'm really happy with it. I recommended him a lot.. I'll hope to work with him again..

Bluetooth Low Energy (BLE)

Ricardo V.

@RicardoVasquezR

•

8 évvel ezelőtt

5,0

$526,00 USD

Find me a fabricator

Lasantha was fantastic to work with. I have previously hired him and would recommend his work to others.

Thomas G.

@TLGriffiths

•

8 évvel ezelőtt

4,6

$588,00 USD

Arduino Barcode Reader and Solenoid

Good work. Easy to work with.

C Programming

Arduino

Dave R.

@wampus

•

8 évvel ezelőtt

Tapasztalat

Mycardreader.com

aug. 2013 - dec. 2013 (4 hónap, 1 nap)

PCB design, Firmware development, Prototype development

WigglyAmps

USB HID using Teensy 3 development tool

Tanulmányok

BSc (Eng) Honors

University of Moratuwa,

Sri Lanka

2006 – 2010

(4 év)

Végzettségek

IESL

2010

Publikációk

Auscultation based stethoscopic diagnostic device for cardiac murmur identification

IEEE

In a healthy heart, there is no any abnormal blood flow takes place inside, in addition to the usual blood circulating pattern. However when the valves or tissues inside the heart are in diseased conditions, this usual blood flow pattern gets changed. As a result, abnormal sounds are produced with the normal heart beat sound. These abnormal sounds are known as cardiac murmurs. By identifying the murmur type doctors can diagnose the cardiac pathology related to that particular murmur type. This paper describ

Knowledge on heart patients through stethoscopic cardiac murmur identification for E-healthcare

IEEE

Cardiac murmurs are the sounds produced by the abnormal passage of the blood flow inside the heart due to the diseased valves or tissues. Identifying the type of the murmur can diagnose the cardiac pathology related to that particular murmur. This paper describes a researched digital stethoscope that can be used as a stethoscope as well as a murmur identification device. To capture the heart beat, a chest piece of a traditional stethoscope is used with a condenser microphone attachment. Then the signal is a