The selectable BPF did not work, resulting in signal loss. PCB Order - JLCPCB PCB Order - EASYEDA About About Team News Report. They have fabricated circuit boards that are intended for frequencies from 1 GHz to 6 GHz handling RF powers of 10 Watts to 1000 Watts and their quality is excellent. Before the making of Gacun SMPS circuit for a power amplifier, we must know in advance what it is Gacun. Their custom PCBs from JLCPCB have rust-resistant pads and vias, and remain high quality even at high temperatures. If that's actually the case you need 0. We do not charge setup fees or stencil fees. Which means they start from "A" and finishes with "Z" of PCB manufacturing process. This piano using Arduino was made out of. JLCPCB (Shenzhen JIALICHUANG Electronic Technology Development Co. I think in a few years we will see access to old crappy fab processes open up like we have for PCBs and we might get to the point where almost anyone can whip up their own SoC in some python based HDL, send it off to JLCIC (look up JLCPCB if you don’t get this reference) and have a small run of chips that are perfect for your little hobbyist. How about taking it one step forward? What if we could design PCB, manufacture and get it Assembled? Yes you heard that right. This is a design tool integrated LCSC components catalog and JLCPCB service that helps users to save time to make their ideas into real products. Go to Tools and select Arduino UNO from board menu, select programmer as USBasp and choose com port of the board then select Upload. Full feature custom PCB prototype service. As we all known, PCB price of JlCPCB is the cheapest among China PCB Manufacturers. UA741's high performance monolithic OP-AMP on single silicon chip. Latter articles will discuss more advance topics such as Compare Mode, PWM and Captures. Check out our free online PCB Prototype Calculator for an instant price quote. Circuit board designs for the underwater robotics team. 5″ diagonal in size. The sound is very loud and very durable,easy to builds better. Algorithm is basically a set of simplified rules or. Gerbv lets you load several files on top of each other, do measurements on the displayed image, etc. Make MOSFET transistor circuit as a timer by utilizing working principle of the capacitor. دليل دورات Eletorial. $2 for 10 pcs of customized pcb? That’s a amazing deal! But it’s really in JLCPCB. And of course, we jumped right into it, we already designed a PCB and is in the making as we speak. , and the relatively low price of delivery to my country (I live in Belarus). Cheap and Quick-turn PCB Manufacturing - JLCPCB. Today I'd like to delve a bit into China PCB manufacturer -JLCPCB's PCB pricing,quality, features, delivery. Basically, an electroscope is a device that visibly reacts in the presence of static charge by means of aluminium leaves that will spring. The MPLAB Xpress Evaluation Board features PIC16F18855, an 8-bit PIC processor with Core Independent Peripherals (CIPs) combined with eXtreme Low Power (XLP) technology suitable for a wide range of general purpose and low-power applications. 248 and it is a. JLCPCB offers ENIG, which was still cheaper than OSH Park, but much closer in price. Before placing footprints we need to create a board outline. We also offer other advanced circuit technology including microwave RF PCB, flex PCB and rigid flex PCBs. Circuit board designs for the underwater robotics team. JLCPCB (Shenzhen JIALICHUANG Electronic Technology Development Co. Hello Friends, I hope you are fine and doing great in your lives. Cheap and Quick-turn PCB Manufacturing – JLCPCB. DharmaniTech - Blog with circuit designs and ideas around microcontrollers!! Wednesday, December 8, 2010. A bit of a different mailbag this week. Bill of Materials(BOM) File for SMT Assembly. Jlcpcb shipping cost keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. This is all simple LM741 circuits, it's so useful, LM741's general purpose single OP-AMP. The domain jlcpcb. Just got some of my boards from them. 9 from github and BLtouch starts on line 722. 4V Two Step Lithium Battery Charger Circuit - CC and CV Mode: The advancement in Electric Vehicles, Drone and other mobile electronics like IoT Devices seems to be promising for the future. There is no specific reason for this recommendation. These boards showed up within about a week of ordering, this is of course using DHL (Otherwise your PCBs typically spend a few weeks in the mail system). 0 Inch 1080P FHD WiFi GPS Dual Lens Car DVR Camera I just received this little number… and rather than the usual pretty stock photos here are some REAL photos to start the ball rolling. Complete codes, circuits and design. Gerbv is a viewer for Gerber RS-274X files, Excellon drill files, and CSV pick-and-place files. Fusion PCB manufacture, PCB Assembly, CNC milling services and more. FR-4 is the most commonly used material for PCBs. I chose this platform on the basis of the convenience of integration with the EasyEDA platform, low prices for orders of PCBs up to 100x100 mm. Get 5 boards, any colour with tons of customization, for only $2! And if it's your first order, get 10 boards for the same price! Just upload your gerbers and get an instant quote! Submit your order and your boards will be reviewed for production within the hour. Unlike SPI this protocol only uses two wires to establish the connection and hence known as Two wire interface. com) to get a PCB cash coupon. Το jlcpcb σας ενημερώνει για τις ενημερώσεις παραγωγής όπως για παράδειγμα: έβαλα την παραγγελία μου στις 12 Σεπτεμβρίου και έλαβα ενημερώσεις για την παραγωγή στις 13 Σεπτεμβρίου. Prototype PCB manufactuer, HDI PCB, electronic components, with printed circuit board assembly turn-key service. So first, set Board OutLine as the active layer, then draw the board outline using Track and Arc from the PCB Tools palette. 9/18/2018 · JLCPCB Prototype for $2(Any Color): https://jlcpcb. I ordered mine with my board from JLCPCB, but if you order a board from OshPark you can get the stencil separately from Osh Stencils. com reaches roughly 1,716 users per day and delivers about 51,491 users each month. Examples? Look: As a result I just decided to leave the settings as default and only removed the unnecessary layers. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this. Convert your files to PDF, DXF, DWF, PLT, PNG, TIFF and more. It is now $26. 1 channel (2 Front, 2 Rear, 1 Center and 1 Sub woofer). after soldering. The monthly production capacity is 200,000 sq. OurPCB Tech. When staring at a 17" monitor on a crowded desk, and pushing, pulling and twisting a wimpy joystick just doesn't do any more, it's time to build a simulated cockpit or flight deck. buildcircuit. Once you have. Receive your free printed circuit board design file check at FreeDFM. But when ordering some new boards, JLCPCB now declined to manufacture them with (cheap) HASL surface finish and only wanted to manufacture them if I switched to (more expensive) ENIG. Arduino BLE Accelerometer Tutorial - Introduction. • Join us by 30th May, the most gorgeous pictures will be displayed on JLCPCB Facebook on 31st May. To download Gerber files of your PCB just click the Fabrication Output button in EasyEDA. The module itself currently sells for $6. com for 5 pieces of a PCB design we have done here at electronics-lab. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. The manufacturing category is meant to apply to any post about when your KiCad files are complete and you're ready to send off to get made. Thousands of. com/en/PCB/Design-Rule-Check/index. The PCB design has 2 layers and was done on Autodesk Eagle. com for 5 pieces of a PCB design we have done here at electronics-lab. 2 layer boards its the opposite, the JLCPCB are better. A Gerber file for each section of your electronic circuit design is what you need if you want to create a PCB. ), is the largest PCB prototype enterprise in China and a high-tech manufacturer specializing in quick PCB prototype and small-batch PCB production. but I have some questions. 354 between pads and at 0. Convert your files to PDF, DXF, DWF, PLT, PNG, TIFF and more. Can you send me pcb layout component placement and schematic diagram?. JLCPCB is a PCB manufacturing company with a full production cycle. For sample order( The order quantity is less or equal to 50pcs), if it is made with panel（panelised by v-cut lines or millings） , as long as the size for single pcb is smaller than 15 mm per side(or equal to 15mm), then it will be charged of $14. 1 Channel Audio Processor Surround Pro Logic Decoder will make the sound come alive like a professional home theater sound system for the distribution of rich sound. com How to Get PCB Cash Coupon: https://bit. Le Magic Mirror (miroir magique) est un projet Raspberry Pi très populaire, qui permet de concevoir un miroir intelligent modulaire. Provided by Alexa ranking, jlcpcb. Hello Friends, I hope you are fine and doing great in your lives. The PCB is exported in the industry standard Gerber export format which suitable for uploading to popular PCB service providers. Cellular backdoor with Hologram Nova on Raspberry Pi flask-ask server-Amazon Alexa controlled. I’m designing the worlds (currently) smallest ESP32 development board and it’s called TinyPICO. com, I'm thinking of taking 6-7 sample sets of my PCBA to China with me on a flight. MPLAB Xpress Board. Bill of Materials(BOM) File for SMT Assembly. - osu-uwrt/uwrt_electronics. Dispatch is done from Brunnthal, Germany (next to Munich). Forgot account? or. Found an interesting FPGA project on Kickstarter and decided to back it. What can we help you with?. com How to Get PCB Cash Coupon: https://bit. com Competitive Analysis, Marketing Mix and Traffic - Alexa. ly/2GMCH9w. com after correcting the footprint of the HyperRAM. Someone ask me. A Free & Open Forum For Electronics Enthusiasts. Watch the best Make your own videos online. The PCB design has 2 layers and was done on Autodesk Eagle. Algorithm is an important concept in programming and every programmers must be well versed in it to write efficient codes. For example, JLCPCB has one price for under 10x10 cm, and my boards are 5x10cm at maximum, so I can put two in one 10x10cm plate. and I going to order more. com Circuit project files: https://easyeda. py that automatically determines which FPC pins are Teensy inputs and outputs. jlcpcb | jlcpcb | jlcpcb com | jlcpcb review | jlcpcb china | jlcpcb pcba | jlcpcb coupons | jlcpcb gerber viewer | jlcpcb slot | jlcpcb wiki | jlcpcb country |. When you preview the Panelize Gerber at JLCPCB. EasyEDA Tutorial easyeda. Upload your Gerber files to check design for manufacturability. 9 from github and BLtouch starts on line 722. Have problems? Contact support now. Conversely, we will ship the next day. A bit of a different mailbag this week. I am sure I'm not the first person to think this, but after making a few projects with the help of JLCPCB, my youtube sponsor, I wanted to push both what I am comfortable with in terms of pcb design and JLCPCB's manufacture process. Here's an overview video of the first prototype (with the firmware partially working):. As of May 2018 it is my new default go to place to order PCBs. System: EasyEDA system parts, it comes from open source libraries, such as Kicad libraries, company public libraries, user contributions. Having said that, both companyes have delviered me product that is up to stracch. Complete codes, circuits and design. Once you have. Examples? Look: As a result I just decided to leave the settings as default and only removed the unnecessary layers. I2C (Inter Integrated Circuit) also known as TWI (Two wire Interface) is a bus interface connection that is used in many devices such as Sensors, RTC and EEPROM. com/GreatScott/LongboardFernbedienung-28d260c134334a9f8e23a8d22675be. - osu-uwrt/uwrt_electronics. Common questions and support documentation. Here is the main interface of Sprint Layout. The Arduino will process this data according. Forgot account? or. Containing a lot of bits and pieces for upcoming projects and other odds and ends. com) to get a PCB cash coupon. The intent of this article is to give you a very basic introduction to C programming on the Raspberry Pi. 25mm as my minimum and the QR is about 30 “elements” per X,Y then the QR will be 7. PCB We are a PCB manufacturer that specializes in PCB prototype and low volume PCB production. Once you have. JLCPCB Provide wonderful services with unbeatable price,especially only need 2$ now, you can get PCBs you want, It is a so good PCB prototyping. System: EasyEDA system parts, it comes from open source libraries, such as Kicad libraries, company public libraries, user contributions. First connect all the components together on the breadboard so that I can troubleshoot easily if something goes wrong. I had already ordered some new PCBs from JLCPCB. EasyEDA is such a full suite schematic and PCB design software/manufacturing service that's free to use and offers great prices on custom PCB manu. I have shared many Proteus Libraries till now but they all are randomly spread in blog posts so today I thought to post all those Proteus Libraries links in this post. This short tutorial, show you the basic how arduino and servo works together. Seed Studio also offers HASL and ENIG options, and in general was slightly more expensive than JLCPCB for a comparable board. Since 4 year now I'm mostly working with Eurocircuit but recently I tested different PCB prototype services and low cost solutions : JLCPCB, Seeedstudio and OSH Park. 6mm, 1oz, Green Soldermask, White Silkscreen, HASL $43 10pcs $215 100pcs $795 500pcs $1345 1000pcs FR4，4 Layer, 100x100mm, 1. 18 and it is a. 5 cot v-cut for per design. As it was my first order, the total came out to just $32. Have problems? Contact support now. Trending Hashtags. I ordering pcb from your company right now. They’re great for any project that outputs data, and they can make. Fusion PCB manufacture, PCB Assembly, CNC milling services and more. Ordering PCBs for JLCPCB is also very easy thanks to the amount of invested they have done to automate the PCB ordering project. I always use DHL. Generally, two boards are printed, that is, two boards are printed on one sheet of paper. When you preview the Panelize Gerber at JLCPCB. 127mm and min width mask = 0. com, they provide both design and pcb sample service. Though you cannot expect music out of this but still it will be a fun project worth giving a shot, trust me. See more of JLCPCB on Facebook. It automatically understands each layer of PCB. Determining The Type of Drawer Slide to use. EasyEDA is such a full suite schematic and PCB design software/manufacturing service that's free to use and offers great prices on custom PCB manu. Tutorials on basic circuits , building print. JLCPCB via email support says the smallest feature size on silkscreen is 0. This is all simple LM741 circuits, it's so useful, LM741's general purpose single OP-AMP. Once I got everything working properly, I tried it on a Robot and played with it for some time. 354 between pads and at 0. 1 Channel Audio Processor Surround Decoder functions to process the stereo signal into surround sound pro logic 5. If you’re looking for more in. Ordering PCBs for JLCPCB is also very easy thanks to the amount of invested they have done to automate the PCB ordering project. In the previous post, I showed you how you can send Battery status to your phone using Arduino Nano 22 BLE Sense. Hi Guys, In today’s video I am going to show you, how I made a persistence of vision or pov display that can display text, basic graphics and animations. Electrical Properties. lay6) file in Sprint Layout. Brandon Keeber is raising funds for Novatropes: Electro-Kinetic Sculptures Inspired by Nature on Kickstarter! An elegant blend of high technology and biomimicry that creates a gorgeous optical illusion of infinitely cascading motion. and connected to Arduino UNO R3. 32 + $2 + $21. Hello, I was searching for PCB antenna design for ESP32. According to Wikipedia Algorithm is defined as “a set of rules that precisely defines a sequence of operations”. Remaining connections are shown in the circuit diagram. io information at Website Informer. For examples of how to write ISR for different interrupt sources check out tutorials sections for examples with full source code and detailed explanation. Watch the best Pcb videos online. Other applications that are ideal for MCPCB integration are solar panels and motion control applications. Step 1 - Creating the prototype. Mike's Flight Deck is an introduction to home cockpit building, the hobby that takes off where flight simulation game software ends. See Pcb videos from all of your favorite websites in one place. Connect with us. Open your PCB(. This piano using Arduino was made out of. The intent of this article is to give you a very basic introduction to C programming on the Raspberry Pi. 33mm which is 2x larger than the mfgr minimum. Though you cannot expect music out of this but still it will be a fun project worth giving a shot, trust me. When using the M. I use LM35DZ for temperture sensor, KW4-563ASA display (4 digit 7-segment with common anode), RGB led, 3 button (push button) for select and change the value for desired temperature and for hysteresis. What does your quoted price include? The PCB assembly pricing includes engineering fee, assembly fee and components cost. "You guys have a great service, and the quality of the printed wiring boards that come from ExpressPCB is second to none over all the other board houses I have used over the years. JiaLiChuang (HongKong) Co. This is now an opportunity to compare these different solutions. SMD Circuit. STM32 GPIO Code Examples. Having said that, both companyes have delviered me product that is up to stracch. And we got results. This will be an interesting DIY to make even though you are not very much into music. ( its a different printer on the 2 layer ). Alternatively, if you prefer to skip the hassle of PCB manufacturing and sourcing components, you can order the ANAVI Play pHAT maker kit from Crowd Supply and solder all the through-hole components on your own. 25mm as my minimum and the QR is about 30 “elements” per X,Y then the QR will be 7. Complete codes, circuits and design. com has ranked N/A in N/A and 1,816,124 on the world. For prototyping quantities (let's say 3 pcs. In this post, I’ll give you a quick overview of what a Python program is, what Python programs can be used for, and how to write and run a simple Python program on the Raspberry Pi. ESP8266 Vs. Unlike SPI this protocol only uses two wires to establish the connection and hence known as Two wire interface. In this post I will let you know how to order his PCBs from them, how much they charge for PBC and how many days it require to arrive and how the quality of the PCBs. Here is yet another application you can put your Arduino to use. We're getting an exclusive factory tour of one o. 0) March 1, 2016 Chapter 2 Layer Count Estimation and Optimization Layer Count Estimation A quick way to estimate the number of routing la yers required to fully break out signal pins. If you are an electronics hobbyist who often dabbled with Power Supply TV, then you will not be familiar with Gacun module. Once I get all samples for. Audio amplifier IC LM386 is a widely known Audio amplifier used in many audio circuits due to its miniature size and affordable cost. Hello friends, I hope you all are doing great. Today, I am going to share a list of New Proteus Libraries for Engineering Students. Do you think the customs. One Person's Experience Of Having PCB Assembly Done In China. Latter articles will discuss more advance topics such as Compare Mode, PWM and Captures. A Gerber file for each section of your electronic circuit design is what you need if you want to create a PCB. $2 for 10 PCBs. Comment Designator Footprint LCSC Part # （ optional ） 100uF C1 CASE-B_3528 C16133 100nF C2, C9, C10 0603_C C14663 10uF C3-5 1206_C C13585 15KΩ R5, R6 0603_R. This protocol will come in. JLCPCB, the largest PCB prototype enterprise in China and a high-tech manufacturer, specializes in quick PCB prototype and small-batch PCB production for ove. Premium source of Projects Tutorials Code Ebooks Library for Atmels Atmega32 AVR , Project List in PDF , Projects by Application. as well as stock control circuit microchip PIC16F microcontrollers made with a variety of serial… Electronics Projects, Model Aircraft Projects "avr project, microcontroller projects, ". The winners will get Free PCB Prototype. All packages are by default delivered by our shipping partner UPS. Adafruit Neopixel. gerbv - A Free/Open Source Gerber Viewer Overview. com uses a Commercial suffix and it's server(s) are located in N/A with the IP number 104. 81 with JLC and USD39. JLCPCB is a PCB manufacturing company with a full production cycle. Super High Power Amplifier called Yiroshi Audio is most powerful it has output power about 1000W up to 3000W, you can see the circuit diagram, PCB Layout amplifier, and see the video test Yiroshi Audio. Have problems? Contact support now. co blocked? Use our fast and secure proxy to unblock ldtv. ) we aim to be comparable to JLCPCB if you take DHL shipping and ENIG into account. Today, I am going to share a list of New Proteus Libraries for Engineering Students. FR-4 board material. Trending Hashtags. 18 and it is a. I think we get PCB easier and spend less than the past. Latter articles will discuss more advance topics such as Compare Mode, PWM and Captures. And we got results. For a 3 pin thyristor the. For more board size information please refer to the following data sheet:. I2C (Inter Integrated Circuit) also known as TWI (Two wire Interface) is a bus interface connection that is used in many devices such as Sensors, RTC and EEPROM. but I have some questions. Upload your Gerber files to check design for manufacturability. com) to get a PCB cash coupon. Do you think the customs. Have problems? Contact support now. As a maker and youtuber, I usually document my projects via videos and livestreams, so here is the chronological journey of why I started working on it and how it's all going…. As we all known, PCB price of JlCPCB is the cheapest among China PCB Manufacturers. JLCPCB(Shenzhen JLC Electronics Co. This protocol will come in. ), is the largest PCB prototype enterprise in China and a high-tech manufacturer specializing in quick PCB prototype and small-batch PCB production. 3V regulator respectively. 33mm which is 2x larger than the mfgr minimum. Generally, two boards are printed, that is, two boards are printed on one sheet of paper. I thought I would give a heads up though to users in the UK. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this. I needed to fabricate some PCBs. com uses a Commercial suffix and it's server(s) are located in N/A with the IP number 104. They are good for heat dissipation. Most Popular Company JLCPCB is offering to make 10 PCBs maximum size of 10cmx10cm for only 2 dollars. These boards showed up within about a week of ordering, this is of course using DHL (Otherwise your PCBs typically spend a few weeks in the mail system). Hello friends, I have made a candy color sorting machine using an Arduino Nano, a NEMA 17 motor, and a TCS3200 color sensor In this project, the color sensor detects the color of candy and generates output in this output sensor data transfer to Arduino. The shipping cost is also slightly less than competition if you use DHL. Yes I'm talking about JLCPCB. About JLCPCB. Complete codes, circuits and design. I work on som update fore the systems. I2C (Inter Integrated Circuit) also known as TWI (Two wire Interface) is a bus interface connection that is used in many devices such as Sensors, RTC and EEPROM. With our 'Online Gerber Viewer' web service you can visualize your Gerber274x files as well as files in the Excellon format and navigate in a fast and simple way through the PCB design. SMT Assembly FAQs. Flowcode pic programming pic about the program in the form of flow diagrams of the easiest programs you can write easily in the market, still us is very simple, although it was touted as easy a little bit microcontroller, code, etc. We got contacted by JLCPCB, And they wanted to work with us and sponsor us. 22 Oct 2019- Explore genebotch's board "ARDUINO", followed by 1049 people on Pinterest. How to export Gerber file from EasyEDA Why should I export these files? The answer is simple - if you want to order production of PCBs on a platform other than JLCPCB, you need to export the files (Gerber) necessary for the production of your printed circuit board. Arduino as WS2811 RGB LED Controller: Here I will use some basic examples from Arduino library. JLCPCB: Prototype 10 PCBs for $2 (2-layer,100*100mm). RPLIDAR A3M1 is the next generation 360 degree 2D laser scanner (LIDAR) solution developed by SLAMTEC. The parts costs around $25 in Digi-Key. and connected to Arduino UNO R3. What is an AVR?. @ Make Your Own Lyrics With This Artificial Intelligence Rap. Last Updated: 2019-08-16 VBB supports exporting PCB's ready for manufacture directly from ‘VZ' family templates. I think we get PCB easier and spend less than the past. Create New Account. Watch the best Make your own videos online. Examples? Look: As a result I just decided to leave the settings as default and only removed the unnecessary layers. Sample Program. In this section, I will provide a brief overview of MPLAB Xpress board and its features. Visit JLCPCB (EasyEDA). This short tutorial, show you the basic how arduino and servo works together. Interested in pcb? Explore 149 pcb projects and tutorials with instructions, code and schematics. GerbView can convert your legacy Gerber files to the newer extended Gerber format. It can take up to 16000 samples of laser ranging per second with high rotation speed. Confirmed sample picture before 12:00am in China time, will be shipped in 24H. This is the cheapest price you have ever seen because the shipping charges are also low as compared to the companies. I downloaded 1. This article was meant to make you understand the working of LM386 IC and how to use in amplifier circuits. JLCPCB is a PCB manufacturing company with a full production cycle. OurPCB Tech. Results Arduino v esp8266 from youtube at herofastermp3. lay6) file in Sprint Layout. Today I am going to write an article on real life examples of embedded systems. Designed in EAGLE and manufactured by JLCPCB. My order was done without using any affiliation link or discount code so there was no way for them to know who I am. Download a sample BOM. Do you think the customs. ( its a different printer on the 2 layer ). When the something switch is cut off pin 2, it will be negative voltage and the trigger IC 555 will stop. Jlcpcb is a pioneer in the xx industry and specialize in making xx products. I think we get PCB easier and spend less than the past. STM32 GPIO Code Examples. 41 If you got the same PCB's in black instead of green at EasyEDA the price would be:. During the manufacturing process, we will send sample pictures to confirm. but I have some questions. Visit our store www. This is now an opportunity to compare these different solutions. We can also combine metal core with our HDI PCB technology. PCBs in JLCPCB factories, The video shows the whole manufacturing process of 2 layer PCB in JLCPCB Daya Bay Factory : Step1 From File to Film Step2. Here is yet another application you can put your Arduino to use. This protocol will come in. Orange Box Ceo 7,833,433 views. london reaches roughly 5,520 users per day and delivers about 165,596 users each month. Latter articles will discuss more advance topics such as Compare Mode, PWM and Captures. About JLCPCB. 1 student version grátis, simulador de circuitos analógicos e digitais PSpice Schematics of schematic editors, Desenhe e simule circuitos analógicos e digitais com pspice. The winners will get Free PCB Prototype. This is a company that makes PCB`s at low cost but with high quality.