Last seen: Jul 11, 2014 7:07 AM EDT
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Rate: $30.00 USD/hour
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Nguyen Trung Quang

PCB design and programming microcontroller/ sky: n_trungquang

Username: quang102

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Location: Hanoi, Vietnam

Member since: April 2011



(29 reviews)

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1 user has recommended this freelancer.

My projects:

  • $377.75 USD
    Profile image for Seller RN2014


    Mar 22, 2014

    Very good Job overall, good communication and Fast turn around, readily available even on weekends, some small glitches but nothing major. Recommended.

    Project Description:PC board layout. 2 layer, Simple 6" x 2" rectangular all components on top side, through hole components ( phone jacks, DC jack, slide switches, 14 pin chips, etc) plus some SMT components (resistors,...
  • $490.00 USD
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    Jan 13, 2014

    Great work, thank you very much Quang.

    Project Description:PIC32 programming (must be portable to FreeRTOS): - Versatile MDIO low level driver to access MDIO devices - Versatile SPI master low level driver to access SPI slave devices (multiple) concurrently -...
  • $440.00 USD
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    Jan 2, 2014

    Excellent work, my best recommendations.

    Project Description:testadapter: -update connectors to VOIP board and schematics -add I2C extender chip and relay (will symbols & footprint will be supplied) -add some testpoint -layout bva: -update connetros to VOIP board...
  • $275.00 USD
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    Dec 29, 2013

    Quang did an excellent work. Very quick, very good communication. My recommendations.

    Project Description:We made a VOIP board which need a connector interface. Design must be made with Altium Designer. The following signals must be broad out. 2x 5V 2x RS232C (25 pin) 1x RS232C (9 pin) with audio in 3x...
  • $61.00 USD
    Profile image for Seller robertadams21


    Oct 31, 2013

    Met all requirements of project and very fast.

    Project Description:I have Altium Designer files for an amplifier board (4 layer, ~50 components, ~3x10 cm, standard technology). I need Gerber files produced in a way that they can be submitted to for production...
  • $164.35 USD
    Profile image for Seller alejandrosarras


    Oct 28, 2013

    I have worked with other freelancers , but this guy is a real professional and an expert, i will work with this professional again.. thanks

    Project Description:Need a Very small and simple Project Consist in a pic 16f628a 4x4 matrix keypad Need to read the key pressed , then send the data to a other device i already have ( data/clock input ps2 port) will...
  • $222.00 USD
    Profile image for Seller ulissesmiranda


    Oct 26, 2013

    Excellent freelancer. Very good skills in Altium Designer. Probably hire him again.

    Project Description:Double Layer PCB for TMS320F28335 (176LQFP) DSP. Circuits on PCB - SMD 0805 components - Power (3.3V and 1.9V regulators), Decoupling caps, etc - JTAG Interface - IO Conectors A similar PCB for...
  • $333.00 USD
    Profile image for Seller Eng4Prod


    Aug 8, 2013

    Very knowledgeable in Altium layout. There were a few miscommunications, but we worked them out. He would not start working project until he was paid 75% of total project cost (milestone funded and released). Also, he would not release Altium file until all payments were made. However, this may have been because I was a first time employer. He found some of my mistakes and corrected them, and he delivered a quality product.

    Project Description:PCB layout project for an adjustable voltage board. Layout must be done in Altium Designer, and compatible with my version (AD 12). The board is 4" x 6" with connectors on two ends (see attachment for details)...
  • $155.00 USD
    Profile image for Seller mx360


    Aug 2, 2013

    very good

    Project Description:N/A
  • $30.00 USD
    Profile image for Seller luizsalomon


    Jul 31, 2013

    Very nice freelancer. Second time around with him and second time I am completely satisfied.I can only recommend to our community.

    Project Description:Hello there. I need a Proteus schematic to simulate the 74HC165 and 74HC238 devices. Things that the schematic MUST have: signal generator (to simulate clock) and oscilloscope. The schematic will be used for instruction purposes, so the more scholastic the better...
    Nguyen Trung Quang has not completed any projects.
  • $450 USD In Progress

    Hi, I am looking for motherboard designer with good experience on altium. I want to get replicated from open source board. Please contact me I will send detail regarding the same through email.

  • $750 USD In Progress

    We would like to design and manufacture 5 circuits, involving I2C bus: - 4 analog input channels 0-10 V to I2C - 4 PT-100 channels to I2C - 4 analog output channels 0-10 V to I2C - 8 dry contact inputs to I2C - I2C to KNX gateway, ( scope of the project includes two prototypes of each and delivery to Spain. Details about the enclosure and connections will be provided.

  • [Sealed] In Progress

    [This is a Private Project. You must be logged in to view the Project Description]

  • €158 EUR In Progress

    I need a firmware for PIC microntrollers. ( may PIC 16 bit ) with good comments and documentation ( schematic,pcb design)My goal is load an little image on TV by composite or S-video signal ( this is a demo )The image is saved on external or internal eeprom ( you can choose because this is a very little demo project )The firmware must be simple in order to show how load an simple image or an simple graphic line I prefer C code or 90% C code and 10% asmThe circuit usually includes an micro + DACBy this prj you explain how we can draw on TV ThanksImage info:Color :min 8 colors

  • $555 USD 7 days ago

    Look for someone to edit a PCB that will have the SIM900 GSM module on it.all the peripherals for it to work (power supply, printed antenna etc... if needed of course) the circuit will work from lithium battery (no need to add charging circuitry)it will have audio (speaker, microphone) and single power switch that turn all the thing (connect the battery)also need to write script that will run on the module it self , simple script that after the GSM module join any network it makes a voice call to predefined number - open voice session.! please bid only if you already did such thing on the specific module!the awarded freelancer will need to provide all the necessary files (schematics, layout, gerber, script project files etc...) p.s. the PCB design should consider as cheap solution as possible

  • $33 USD/hr 10 days ago

    PCB layout and schematic capture project:Schematic will be hand-drawn or cut-and-paste from existing demo boards from TI, you will need a copy of Altium to perform this work. Enter the hand-drawn schematic, approximately 3 SMT ICs, about 15-20 passive components. Generate a bill of materials, part library, schematic, 2-4 layer PCB layout to be saved in Altium format. Generate gerber files and total package for turn-key assembly.

  • $333 USD 12 days ago

    I have a schematic design and a BOM ready and I need someone to draw the schematic design for me on Eagle, and also to create the layout for it according to my requirements.

  • $555 USD 16 days ago

    hello there i need a person who can finish my PCB schematics add more and put them into a right order.

  • $722 USD 16 days ago

    Hello i need to read from an USB keyboard where key is pressed using a pic24fj64gb002 (with usb host) and send the info about the key pressed to a serial port.The code must be more simple possible, Clear,and full of comments (the code must be for xc16 and using official microchip libraries)also the schematics of the project must be more simple possible with minimum components.

  • $277 AUD 17 days ago

    Convert ORCAD schematic DSN files version 16.3 or higher to v16.2 to allow import to Altium v14

  • $333 USD 20 days ago

    Design and lay out a PCB that uses the Arduino and a PIR sensor.

  • £333 GBP 29 days ago

    A light system adjusted to a remote control operated by batteries. Room for adjustments and changes depending on what the engineer can do or suggests is possible.

  • $388 USD Jun 9, 2014

    I have the code which already done.. you need to check the correctness inorder to simulateYou only need to do the hardware and provide WWV transmission attaching more details in the requirement doc It is very urgent ..You should able to build the hardware in 3 days else done bid I need reciever part as a circuit cant use readymade reciever ..

  • $1222 USD May 29, 2014

    I am looking for someone who can make a 4x4 matrix keypad circuit ,PCB design and very low power consumption,on battery 3,7 v,that it has an eeprom and i2c real time clock for the time stamp.The keypad entries should be stored in the eeprom with the time stamp and to be read into a hiperterminal.It is needed the following : the source code ,pcb,and the software. Form of data extracted from eeprom:================= Keys | Time------------------------------ 1234 | 14:32:45 6839 | 15:05:28

  • $100 USD May 20, 2014

    I want logon account for a

  • $30 USD/hr Apr 12, 2014

    I have ongoing work related to our previous project "PC board layout 2 layer"

  • $450 USD Apr 1, 2014

    Hello,I"m Fariz from Indonesia.I want invite you to help me make pcb schematic and design.I have sierra wireless airprime q2687G/RD series, and i want to make product with usb interface. using Silabs CP2102 or FTDI.I hope you can help us.thanks/Fariz

  • $420 USD Mar 31, 2014

    The POS (Point Of Sale) Data Logger is similar to a portable magnetic stripe reader in that it logs data and can be used for memory back-up in case of power failure. This device quickly connects in-line on the POS terminal. Iam sure you have seen these POS terminals in just about EVERY store & some terminals have a computer-like keyboard with a built-in credit card reader, others have a separate credit card reader and some even have a credit card reader with a PIN pad where you enter your PIN # if you are using a debit card. Iam looking for a person who can convert a keylogger to Point of sale data logger which can capture the card details when a card is swiped while at the same time retain the pin number when it is entered. I have tried purchasing these data loggers but they only work with a normal keyboard and do not capture the card information when a card is swipped on a point of sale terminal. Bid only if you are sure you can do this job.

  • $222 USD Mar 28, 2014

    we need to develop program with pic12615. Our circuit diagram and functionality are ready

  • $500 USD Mar 14, 2014

    Program in ASM a small PIC with just 3~4 buttons, 1 x LCD (2 lines x 8 characters). Unit is basically a (very accurate) timer. Press button 1 and an Output will be high for XX.xx (setting 1 in flash) seconds, then off. Press button 2 and an Output will be high for XX.xx (setting 2 in flash) seconds, then off. Display time and count down on LCDCounters for number of cycles for button 1, number of cycles for button 2, total run time since reset, total run time (never reset), total kg (total time x constant that can be set). Other language options for menu and display.We only need well commented ASM code. No PC Board or samples.

  • [Sealed] Mar 4, 2014

    [This is a Private Project. You must be logged in to view the Project Description]

  • $222 USD Dec 18, 2013

    We need to have the schematic designed for a PCB board. Please only bid if you are a pro.

  • $150 USD Dec 17, 2013

    Hi anh!Em là Hậu mới ra trường, cũng có layout và sử dụng ổn Altium Designer.Em cũng mới biết đến dreelancer để tìm công việc layout thêm. Cho em xin địa chỉ email của anh được không ạ.

  • $1277 USD Nov 21, 2013

    To control DC motor whose specs are,6V/12V supply voltage,15 to 30A powerNeed a micro chip controller that can,1, Reduce the speed of the motor from 60RPM to 2rpm,2, Handling functions like CW AND CCW (clockwise and counter cwise)3, time based forward and revers motion: Soft start - CW for 2seconds - soft stop- pause1sec - soft start CCW for 2seconds – soft stop – number of cycles4, Alternatively proximity/touch sensor based CW and CCW (the board should be capable of giving the choice to select either sensor driven or time driven5, ON/OFF using remote.6, Number of cycles be relayed to any mobile phone.

    Nguyen Trung Quang does not have any open projects.
    Nguyen Trung Quang does not have any work in progress.
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