FreePCB is a free, open source, downloadable PCB design tool for Microsoft Windows, released under the GNU General Public License. $10 per square inch, which includes three copies of your design. If your Gerbers violate the design rules that Advanced or any other fab house needs, the tool will flag the errors in your design in a matter of minutes. via Friday Hack Chat: Trusting The Autorouter — Hackaday. The following are the rules for our. We currently support uploaded Kicad files from the current stable version, 6. Eagle uses the Width property of polygons for several purposes. 0 was released in July of 2018. The TLPHnodeV2 is designed as a 4-layer board, so the rules are: One of the most advanced areas in Open Hardware is open chips, a critical dependency for the European Union. Our service cannot process Altium’s Drill Drawing (DD1) or Drill Guide (GG1) files. Running into something unusual? Can’t figure it out? We can help! Send your files to support@oshpark. Maximum Drilled Hole Size. Downloading CAM files We have published some scripts to automatically download, install, and update our files for Eagle. Full stackups and design rules are linked. We opted to design the board such that it can be used as a pendant on a necklace (lanyard) or as a keychain (especially for those of you who like large keychains). For more specific guides, tips, and problems relating to use of a specific design tool, our Design Tools. Full stackups and design rules are linked. Design Rules. If you don’t need super fast turns, there is an outfit in Oregon called OSH Park. Unfortunately, this makes it impossible for us to determine the correct layer order, since multiple layers identify themselves as “Internal Layer 1”. 254mm) Holes belows this size will be rounded up. Remember to publish your BOM as well, since your project cannot be built. Sollte ihre Platine besondere Anforderungen haben, treffen Sie die erforderlichen Einstellungen hier und speichern die Design Rules unter einem neuen Namen ab. For example, a 2 square inch board would cost $10 and you’d get three copies of your board. Batteries are on the back of the board. Shipping Information and Turnaround Times There are two periods of time to think about when making your order: Fabrication time is the time between when you place your order and when we receive boards from the fab. 31 build for myself, I was ready to work on the board design for some IceTube clocks as gifts. For additional details, see our guide on generating and submitting gerbers. 10 mil (0. If you’re in the Denver area, join Laen and Drew for an open house at our new assembly partner: Advanced Assembly! When: Thursday, October 25th, 3:30 – 6:30 PM. The two main design factors were, providing an output up to 5 volts, and reducing the drift at the output from temperature and humidity changes. Thomas Pointhuber got Twitter excited yesterday with this video of importing Altium design into KiCad: Finally, importing #altium boards into #kicad is only one click away (in the developer version). While most PCBs can be simple rectangles, sometimes the design requires more complex geometry. Ensuring Plated Holes Add an important tool to your maker skill set by learning to make your own PCB using Open Source designs and Eagle. Supported Drill Slot Features. October 23, 2016 October 23,. We recommend checking your settings by clicking on Custom. $10 per square inch, which includes three copies of your design. This is a good guide: Markdown Cheatsheet. 32nd Parkway, Suite 225, Aurora, CO 80016. Primarily, this layer serves to indicate the edge of your board. com, and we’ll get everything in order. 73 with free shipping. This guide will show the reader how to make a modest adapter board to connect a Trinket M0 to a INA219 current sensor. Drill Specs and File format and Common Drill issues. In Cadence Allegro, these two settings are disabled by default but need to be enabled: Check Enhanced Excellon Format. 168k 17 17 gold badges 227 227 silver badges 390 390 bronze badges. All fabrication services. Design Rules. You can order as many copies as you want, as long as they’re in multiples of three. Ensuring Plated Holes For most users, this is the best way to order boards designed with KiCad. The KiCad project is proud to announce the release of version 6. If your project reuses or recycles what would otherwise be waste materials, or helps you to do the same for further projects, we want to see it. It's a little bigger than the minimum 5 mil gap in the OSH Park 4-layer design rules, but still small enough to matter for a coplanar waveguide. Open Eagle. He picked up a soldering iron at 8, and wrote some assembly at 12. 260 mil (6. When you’ve created and filled out your schematic, the next step is to create the PCB Design. stackup How to Load RUL files OSHPark 2 layer rules. 004in). Our Drills article has an example of how an image preview should look for the drill holes to be placed and. It includes an OSHPark-specific option to generate gerbers to match what we expect to see automatically. DipTrace is a free downloadable PCB design tool. Our Free Shipping option is delivered by Canada Post, so all Free Shipping to Canada will be held up until the lockout is over, at which point it’ll be delivered. stackup OSHPark 4 layer stackup. io has written an excellent DipTrace tutorial (pdf) that covers exactly how to set up your design rules before starting your design, and then how to generate gerbers when you’re ready to submit a design to us. Sorry we couldn't be helpful. This is the first major version release of KiCad since 5. 006 = 0. Select PCB Design and Add to Open Project. Set Solder Mask Clearance to 0. Unfortunately, this means we’ll place the copper in the opposite way from how you intended. Download all the files here. When processing Eagle’s BRD files, we use the following layers for silkscreen: For including other layers (such as tValues ), you will need to generate gerbers and submit those for your order. As a special bonus, orders placed before 11AM US/Pacific on Monday will ship by Friday of that week. Planar. Design Rules; Pricing & Specs;. 14 of the Programmable Voltage Reference, with new components and and upgraded specifications. Share. For older versions, it’s located under Dimensions > Pads Mask Clearance. 7″ circle with LEDs on the outside circle, and a hole at the top for a keyring. 1 mil (0. What I ended up with after many iterations, was a 0. io project for the OHS18 badge. Eagle will automatically enforce the Edge Keep Out DRC rule, and push copper pours away from any line on the. The best way is to configure KiCAD with the appropriate rules before you start to layout the board. We need the drill file to be in NC Drills format file. “Ding! That’s the bell for the second challenge round of the 2022 Hackaday Prize. 0508mm, (0. Fritzing requires you to set the same rules for the autorouter as for the design rules checking. This layer has several special purposes in Eagle, as well as for our service. Auto-routers tend to generate unusual wiring layouts that both difficult to manufacture, and are tough to correct without experience. I don’t speak for OSHPark, but it would seem the minimum annular ring would be about the same as the minimum track width. It looks like Ultiboard’s default design rules meet all of our specifications for all of our current services, but it’s always best to compare with the specs of the service you intend to order before starting your PCB layout. October 10, 2019 fustini AfterDark, hackaday. In the 2019 round of circuit board manufacturer reviews, OSH Park was the fifth most expensive of the 20 manufacturers surveyed, coming in at $116. From the PCB Layout screen, click Project on the top menu and click Export Files. On the file select dialog, browse to the files and select INSTALL. Here are some help pages for using common CAD packages with OSH Park. The visual difference between plated copper pads and non-plated copper pads will now be visible as well as copper in general. PCB Designs 20_pixel_ring_WS2812B This is a PCB design for a 20 pixel LED ring made from 5050 WS2812B (Neopixels as Adafruit calls them). Features for the OHS18 badge: ESP32 microcontroller with built-in WiFi; E-Paper to display the badge wearer’s name. 3rd Ave. We opted to design the board such that it can be used as a pendant on a necklace (lanyard) or as a keychain (especially for those of you who like large keychains). Design Rules. Annular Ring. Idyl. 0. Primarily, this layer serves to indicate the edge of your board. 001 to 5. How to Load Stackup Files OSHPark 2 layer stackup. June 18, 2020 fustini stencils. Aggressive dynamic bend. 4 precision with no zero suppression. Continuing with our goal to simplify Open Source Hardware fabrication, we’re very pleased announce that we’re finally able to accept direct uploads of KiCad PCB design files on OSH Park! For designers, this means that you can place an order without going through the plot process, worrying. Turn Times. See the KiCad download page for guidance. The Proteus defaults appear to include a trace width of 10 mil and a via drill diameter of 15 mil, which are both in spec, but it’s always best to. In this talk, I will show you how to start your scripting adventure with KiCad by explaining the. OnChip Open Source RISC-V microcontroller at ORCONF 2016. Set the design rules at File -> Board Properties, and click on the Rules tab. Optionally, you may increase Solder Mask Min Width to 0. Plated Slots. We produce high quality bare printed circuit boards, focused on the needs of prototyping, hobby design, and light production. In this project, I use a Python script and an updated version of my digital-to-synchro project to replay my mountain bike climbs and descents at 60x real time speed on a vintage aircraft altitude indicator. Featured in Make: Magazine’s 2022 Guide to Boards! ICE-V Wireless is an ICE40UP5K+ESP32-C3 development board, allowing Wi-Fi and Bluetooth control of the the FPGA by combining an Espressif ESP32C3HN4 SoC with a Lattice iCE40 FPGA. KiCad binaries are available for download for Windows, MacOS, and Linux or will be in the very near future. Non-Plated Slots. I could have used the existing V 1. You can set the rules with the Autorouter/DRC Settings option from the Routing menu. We expect all copper layers to be submitted with positive polarity, but DesignSpark will create negative layers if your internal layers are generated as powerplanes. We offer purple soldermask over bare copper (SMOBC) and an ENIG (Electroless Nickel Immersion Gold) finish. An Atmega1284p microcontroller will read these VGM files from an SD card and translate them into signals to send to the onboard YM2612 and SN76489 chips. … Ray Maurer - Parks Director Temporary Address Water Distribution 757 W. 006”) or larger. Order PCB; Design Rules; Pricing & Specs; Support; Shared Projects; We're a community printed circuit board (PCB) service! We bring you high quality, lead free boards (ENIG finish), manufactured in the USA, and shipped for free to anywhere in the world. CBC reports that Canada Post workers will be locked out as of Friday, July 8th, putting a halt to deliveries. Design Rules. Copper Layers in bend. Back in 2019, we added ability to order a stencil for your board design from OSH Stencils: You've asked for it for years and it's finally here! @oshpark now has a direct link after checkout to submit your design to our site for a stencil! We're working together to streamline your maker needs. There’s no template to import for design rules so you’ll want to open the Technology > Design Rule Manager menu and set your design rules every time you start a new PCB layout. 006”) or larger. Aggressive dynamic bend. 4 mil (0. OSH Park and Screaming Circuits produced an electronic conference badges for the 2018 Open Hardware Summit. You might also take a look at our more general errors relating to submitting orders. OSH Park is a community printed circuit board (PCB) order that brings you high quality, lead-free boards which are manufactured in the United States and shipped for free to anywhere in the world. Setting up Design Rules in Diptrace To make sure you are respecting these rules, in Diptrace PCB Layout go to verification /design rules. io, or Tindie . 0254mm) Here are some more shared projects on OSH Park from the contest: blinktronicator Sixteen different LED colors on a teeny tiny board. The first step is to make sure that the PCB matches the OSH Park Design Rules. If you’re using a 4 layer stackup with both “power” and “signal” internal layers, Altium will generate the internal layers as GP1 and G1. Resources description[en] = OSH Park Design Rules <p> Please make sure your boards conform to these design rules. — OSH Park (@oshpark) May 28. To get an estimate of the proper width, I first consulted a number of on-line or application-based calculators. Follow. He’s also an expert at using an autorouter successfully. KiCAD OSH Park Settings. com, and we’ll get everything in order. Its average price for 12 circuit boards is $116. Design Rules. These chips were used by. All OSH Park boards are manufactured in the United States, and we are operating on a normal schedule. Design Rules. All other values can be set to 0. For example, a 2 square inch board would cost $20 and you’d get three copies of your board. The zip file has everything we need, including the drill file, so all you have to do is upload that to oshpark. We are excited to see what people create in this new flexible PCB design contest on Hackaday. Turn Times. 14 of the Programmable Voltage Reference, with new components and and upgraded specifications. Slot widths 20mil (0. 002in). Design Rules and Generating Gerbers. Board Outline layer and Common Outline Issues Ground plane polygons. We offer 2 layer Flex PCBs for $10 per square inch including 3 copies of your design. io, Hackster. com Designer Altium Designer is a professional PCB design tool. You can order as many copies as you want, as long as they’re in multiples of three. The updated D2S converter fits on a single board and uses three Microchip MCP4802 DACs and three TI OPA548 power operational amplifiers to. 000 volt output version 3. OSH Park is a community printed circuit board (PCB) order that brings you high quality, lead-free boards which are manufactured in the United States and shipped for free to anywhere in the world. Super Swift Service is not available for Medium Run or Four Layer orders. Updated IceTube Clock Design. 4 precision with no zero suppression. Running into something unusual? Can’t figure it out? We can help! Send your files to [email protected] extension. 001 to 5. Help us improve this article with your feedback. The best way is to configure KiCAD with the appropriate rules before you start to layout the board. Annular ring specs are listed on the Services page for your board options. You can order as many copies as you want, as long as they’re in multiples of three. See full list on docs. Dr. </p> <p> Note, that not all DRC settings must be set by the manufacturer. 80. All our services offer purple soldermask over bare copper (SMOBC) and an Electroless Nickel Immersion Gold (ENIG) finish. Design Rules. Native Kicad uploads. Open chips have the potential to be beneficial in terms of their adaptability, speed and potential for increasing digital sovereignty in several sectors, including automotive industry, edge computing, data storage solutions, aerospace, energy or health. Contact Form Order PCB; Design Rules; Pricing & Specs; Support; Shared Projects; We're a community printed circuit board (PCB) service! We bring you high quality, lead free boards (ENIG finish), manufactured in the USA, and shipped for free to anywhere in the world. 10:1 ratio, 74mil (1. It should also be in 2. \ Please make sure your boards conform to these design rules. They publish a simple pricing schedule for rigid circuit. See here for a better explanation. Ground plane polygons. 7″ circle with LEDs on the outside circle, and a hole at the top for a keyring. This item is a battery holder/coin cell adapter PCB that lets you mount a standard CR2032 battery holder over top of a PCB layout that uses a soldered-in battery. Remove the Alignment Points. You can set the rules with the Autorouter/DRC Settings option from the Routing menu. OSH Park’s design rules dictate that the spacing should be at least 6 mil. OSH Park shared project: blinktronicator STM32F030F4P6 breakout board Not as bulky as the nucleo boards, after all. Copper Layers in bend. Hardware design by Alex Camilo based on concept from ESP trINKet by Mike Rankin. We process files using the latest stable Kicad version. The first step is to make sure that the PCB matches the OSH Park Design Rules. The design is a scalloped 2. Cost. Design Rules; Pricing & Specs;. 0. 013 + 2 0. The designs and code are. Resources Hackaday. I’m not too sure how the pad got so close to the trace, it could have been due to some offset or under-etching during the fabrication process or a combination of. Upverter exports gerbers in the naming scheme that. By default, Diptrace tends to be more conservative than what OSH Park can deliver; but there are few things to change: This layer has several special purposes in Eagle, as well as for our service. Help us improve this article with your feedback. Ordering from OSH Stencils is now easier. That comes to $9. The two main design factors were, providing an output up to 5 volts, and reducing the drift at the output from temperature and humidity changes. Furthermore, Osh park has a pricing schedule for its rigid circuit boards. Plated slots have the same annular ring requirement as plated drills. Batteries are on the back of the board. Each of our fabrication services has a unique set of design rules that limit how close and small your traces and vias can be to each other before the process fails and you get unusable boards. Cadence Allegro Drill Settings. Turn Times. We recommend you include a link to your projects primary documentation such as Github, Hackaday. Cadence Allegro Drill Settings. Open Source. Order PCB; Design Rules; Pricing & Specs; Support; Shared Projects; We're a community printed circuit board (PCB) service! We bring you high quality, lead free boards (ENIG finish), manufactured in the USA, and shipped for free to anywhere in the world. Ben is a Computer Systems engineer, with 25 years experience in board-level hardware and embedded systems design. Our “After Dark” service is the same cost as our 2 layer purple PCBs: $5 per square inch, which includes three copies of your design. 4864mm) Note, due to the use of soldermask instead of coverlay, our Flex PCBs are not well suited for use in applications where dynamic bends are used for operationally critical systems, such as medical and industrial. Orders are sent to fabrication daily, and will ship within 5 business days days. Where: 20100 E. After finishing the IceTube clock version 1. Inverted Inner Planes for 4 Layer Boards. Altium typically generates these with a . Ordering from OSH Stencils. When the Width is very small or 0, Eagle draws hundreds or thousands. Oshkosh, WI 54902 Phone: 236-5080 Fax: 232-5316. 0. To correct this, simply rename the layers. 20:1 ratio, 216mil (5. When laying out your design, it’s advised to load our Design Rules, so Eagle will generate warnings and ground planes according to our manufacturing specs. May 17, 2022 fustini Leave a comment. Copper Connection is a downloadable PCB design tool for Windows. 101mm (0. description[de] = EAGLE Design Rules Die Standard-Design-Rules sind so gewählt, dass sie für die meisten Anwendungen passen. For most users, this is the best way to order boards designed with KiCad. oshpark. com. What I ended up with after many iterations, was a 0. The VGM file format stores instructions for sound chips, and VGM files for many popular games can be found online. We recommend checking your settings by clicking on Custom. 508mm) or wider. Then you use the name command to give it the “ground” name. In general, you should ensure the Width property is 6 mil (0. xlsx I created this worksheet to track and translate OSH Park design settings into KiCAD design rules. Modifying Silkscreen Layers. It basically converts the pin layout from one of many odd 2- pin and 3-pin board styles into the common battery holder style. How to indicate Cutouts and Slots. OSH Park is a community printed circuit board (PCB) order that brings you high quality, lead-free boards which are manufactured in the United States and shipped for free to anywhere in the world. . ChrisGammell August 6, 2014, 2:46pm #6. Eagle uses the Width property of polygons for several purposes. 20:1 ratio, 216mil (5. Follow edited Apr 4, 2016 at 20:44. The following default values are well inside our design specs for 2 layer boards. The Dimension layer also serves an important role for Eagle’s DRC checking of copper pours. Orders will be shipped within 14 calendar days of ordering. We also support uploading gerbers generated with Kicad. Supported Naming Pattern. The shared project content is formatted by Markdown syntax. The Python scripting interface in KiCad is a powerful tool that can relieve you from repetitive and tedious tasks. 80 for 12 copies of the Manufacturing Reports Test Coupon PCB. OSH Park sponsors the FOSSi Foundation. Two-dimensional. Idyl. These are suitable for a lead-free reflow process, and are RoHS compliant. Important! A subtle change has been made in MR#405 by Mario Luzeiro that affects how copper is rendered. Sega Genesis Native Hardware Chiptune Synthesizer. During Gerber output, Eagle draws each Polygon as a sequence of lines, each one as wide as the Width property. You can get a quote, approve a design, and pay for an order at OSH Park. You might also take a look at our more general errors relating to submitting orders. Order PCB; Design Rules; Pricing & Specs; Support; Shared Projects; We're a community printed circuit board (PCB) service! We bring you high quality, lead free boards (ENIG finish), manufactured in the USA, and shipped for free to anywhere in the world. The following default values are well inside our design specs for 2 layer boards. We recommend this Ultiboard tutorial for setting design rules. This image shows a ENIG plated copper hole compared to the surrounding copper traces when the soldermask was turned off. There are also pads for a six pin Launchpad for programming or serial communication. I spoke with Autodesk’s Matt Berggren about the company’s Fusion 360 EDA tool and the new capabilities added to the software. This means that for each board, it costs $9. Our “After Dark” service is the same cost as our 2 layer purple PCBs: $5 per square inch, which includes three copies of your design. 025. To do this in Eagle PCB you draw a normal polygon on the top and bottom. Design Rules and Generating Gerbers. 8796mm) 2. Altium CircuitMaker is a free community-driven PCB design tool that has the look and feel of Altium Designer. Free online class to learn PCB design is about to start: TeachMePCB You want to learn how to design a printed circuit board and we can teach you. We offer purple soldermask over bare copper (SMOBC) and an ENIG (Electroless Nickel Immersion Gold) finish. Cite. In Kicad 5. ulp. 000 volt output version 3. April 5, 2020 fustini altium, kicad. This consists of a few short steps, and we'll figure out the file paths to copy things over. \ \ \ This DRC is very conservative, and is good for use with the auto-router. Autodesk’s Fusion 360 Merges ECAD, MCAD. Advanced Assembly factory tour this Thursday (10/25) October 23, 2018 fustini assembly, denver, manufacturing Leave a comment. I set the gap to 6 mils somewhat arbitrarily. It is also a great method to address issues that are specific to your workflow and are not likely to be solved in the upstream code. For example, a 2 square inch board would cost $20 and you’d get three copies of your board. Follow the dialogs and select the OSH Park 2 or 4 layer Technology file. 73 per board at quantity 12 with standard free shipping. Based on that, the minimum via pad diameter would be the minimum drill diameter + 2 track_width = 0. Check Auto Tool Select. Altium Board importer for KiCad. OSH Park design rules for KiCAD. Step 2: Edit your shared project content. Dave Tweed. OSH Park Shared project MTG CR2032 PCB Saver, Rev A. 31 boards, but I wanted to use an up to date design that incorporated all the hardware improvements over the past 10 years while still staying. In general, you should ensure the Width property is 6 mil (0. It supports up to sixteen copper layers, a board size up to 60x60 inches, and it includes a design rules checker. File > New brings up the New Design dialog. During the 2019 review of the circuit board manufacturers, the osh park boards were ranked the 5 th of all the manufacturers. How to submit a Panel or Panelized Design. Orders will be shipped within 14 calendar days of ordering. Based on Travis Goodspeed’s GoodWatch21 schematic, using the CC430F5137IRGZR CPU, which doesn’t have the LCD controller of the CC430F6xxx in the GoodWatch. It requires a paid license to export gerbers. How to include Silkscreen Bitmap Logos. When using native slot callouts, we support the following. The uSMD designed by Arthur Benemann in KiCad shrinks The Maker’s Box SMD Challenge down to a 555 in 8-UFBGA package and a 008004 cap:. Of course, one shouldn’t really route traces or create component spacings that that test the minimums. Design Rules. Our new 2 layer “After Dark” service features black FR-4 substrate with clear soldermask to show off all those beautiful copper traces. Full stackups and design rules are linked. Matt explains how Fusion 360 blends ECAD and MCAD functionality in one environment and at an affordable price, and why he believes it will help round out Autodesk’s. 604mm) Holes exceeding this size will be milled. June 8, 2016 fustini kicad. 10:1 ratio, 74mil (1. io, PCB Art. In this talk you will learn how to import unique board shapes from Fusion 360, create arbitrary fill zones using images, and embed high-frequency RF filters. The guidelines go on to recommend that you use 25% (7 width 45 spacing) coverage on the top and 17% (7 width 70 spacing) on the back. In Cadence Allegro, these two settings are disabled by default but need to be enabled: Check Enhanced Excellon Format. Our Drills article has an example of how an image preview should look for the drill holes to be placed and. The TLPHnodeV2 is designed as a 4-layer board, so the rules are: Order PCB; Design Rules; Pricing & Specs; Support; Shared Projects; We're a community printed circuit board (PCB) service! We bring you high quality, lead free boards (ENIG finish), manufactured in the USA, and shipped for free to anywhere in the world. Eagle will automatically enforce the Edge Keep Out DRC rule, and push copper pours away from any line on the. io: New Contest: Flexible PCBs The now-humble PCB was revolutionary when it came along, and the whole ecosystem that evolved around it has been a game changer in electronic design. The design is a scalloped 2. Taking place on Saturday the 29th and Sunday the 30th of August in Hebden Bridge Town Hall, West Yorkshire, OSHCamp 2020 is looking for proposals for talks and workshops across a variety of themes including but in no way limited to: open source hardware projects, open development practices and principles, interesting projects built using open. FreePCB allows you to set a predetermined set of trace widths and via sizes. devbisme August 6, 2014, 2:17pm #5. DipTrace is a free downloadable PCB design tool. Fritzing requires you to set the same rules for the autorouter as for the design rules checking. 0. RUL Design Rule Setup KiCad requires that you manually set the design rules in PCBNew when you start a new board layout. During Gerber output, Eagle draws each Polygon as a sequence of lines, each one as wide as the Width property. The design combines the ICE40UP5K FPGA with a wireless interface driven by ESP32-C3. Load the Technology File for your PCB Design. How to fix Inverted Internal Layer Polarity. I used an Er value of 3. Here are some help pages for using common CAD packages with OSH Park. When the Width is very small or 0, Eagle draws hundreds or thousands. Design Tool Specific Help. If submitting a BRD file is preferred, you can modify the layer of text belonging to a footprint using the Smash tool. kicad_pcb board layout files directly. It should also be in 2. 1. Select File, then Run ULP. Common Questions. 4. Order PCB; Design Rules; Pricing & Specs; Support; Shared Projects; We're a community printed circuit board (PCB) service! We bring you high quality, lead free boards (ENIG finish), manufactured in the USA, and shipped for free to anywhere in the world. Bob “The Wizard of Make” Martin (of Microchip) and Mark “Hard Way” Hughes (of Advanced Assembly & Royal Circuit Solutions) are spilling all of their hard-earned design secrets in a first. Then you click the “i” to set the parameters. But the PCB is just so… flat.