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Internet of Things Flashtalk: Speeding up a Hardware Design. Using open hardware such as Arduino and Raspberry PI as well as Dev Kits, complemented by Application Notes, White Papers, and Reference Designs. Talk to your FAE, your Manufacturer, and your Distributor.
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Speeding up Hardware Designs
Internet of Things2013-12-03
Daniel D LindmarkMake Believe Company
#TLDRSpeed is important: Open Hardware is a great start, but use Experts, MFGs, Distributors, FAEs. Read the Whitepapers, Reference Designs, and Application Notes.
Bonus Design Tip: To Pass FCC Certification, create ground fences with stitched vias surrounding the board and power islands.
Background: Scout Alarm
DIY Crowd Funded Home Security
Background: TeradyneBuilding Circuits and Software to test:Circuits and Software that are used to test:More circuits (Discrete Components).
Semiconductor Verification HardwareMicro volts to hundreds of voltsNano amps to hundreds of amps22 layer boards, 2.5 GHz routing
Dogs Like Steak: Time to Market is Critical
If you beat someone to market, by the time they have their first offering, you will have your second, cheaper offering.
Speed in MFP
Start with an Arduino / RasPi / DevKit Board and accessories:Ethernet, WiFi, Bluetooth, Motor Control, Zigbee, Knobs, Buttons, Capacitive Touch
If you can’t make IoT with these, you’re either a genius or a fool. Either way, proceed.
I was an Arduino Hater
How Dare these Geeks invade my wheelhouse?
Moofi HabitatRadial LED Globe BlinkenLicht Project-Lakes of Fire regional Burn )*(
Moofi Timeline
Software developers with zero hardware experienceProof of concept: HoursPrototype: DaysFinished 1-Off: Weeks
Except that that is not how it went
Are you running towards the finish line?Are you running towards the finish line?
Or away from the start?
“These Never Happen” - no one ever
Incorrect Interoperability Trace Coupling Unforntunate TpyosUnfamiliar Parts Bad Assumptions Impedance MismatchingSplit Plane Routing Decoupling Caps High ESRIncorrect Footprint Unintentional Shorts Dangling NetsMisnamed Pins Poor Layout Flow End of LifeLong Lead Time Sedimentary Code Poor OptimizationPower Supply Folding Counterfeit Parts Poor CoolingInsufficient Power Switching Noise Thermal EffectsRadiated Noise Insufficient Overhead Via Thermals
Find an Expert
I wasted years doing it the hard way with theory and understanding.
Find someone to tell you how to do it right.
Find a product advocateComponent manufacturers and distributors have a vested interest in you buying their product.
If you have hot coals, let them run over your hot coals.
Your FAE is your best friend
White Papers
Reference Designs
Application notes
Read every abstract / summaryCompanies such as Linear Tech and Arrow have hundreds of reference designs.
(And will gladly find someone to explain the parts you don’t get).
Speed in CompleteFunctional Prototype
Modify your dev hardware for your PCB.Arduino
Share Alike HardwareLGPL Software
RasPiLinuxClosed Hardware (CPU)
Dev KitFree as in Beer
Open Vs ClosedAn open hardware will compete against large companies by making it easy for anyone to emerge and difficult for the big guns to compete. This will spur innovation.
A closed hardware will attract investment. Competition will improve cost / features. This will spur innovation.
Open HardwareFastest time to MarketBest Reflection on BrandConsider Fencing your DesignConsider an Open SpinoffThere is no Secret Sauce
You climbed up to the top all by yourself!
Thank you
scoutalarm.commblabs.orgBlog: DanielDLindmark.comemail: [email protected]: @MakeBelieveInc
Bonus FCC Certification Layout Content Below
You should be worried about emissions
Emissions
Vertical Emissions are from exposed traces on the top / bottom side
Horizontal Emissions are from the side of the board.
Mitigate Vertical EmissionsBury Traces as close to the chip as possible.Keep Top / Bottom side trace lengths short(This means going to a 4-6 layer board)
Mitigate Horizontal Emissions200 mil GND fence around periphery and power islands100 mil stitching viaFlood top / bottom layers with GND
Antenna Layout
Place Antenna at outer edge of the board.No GND / Traces / Metal to the sidesNo GND underneath on any layer
Final Routing
No Vias from Chip to AntennaUse Coplanar Wave Guide for impedance matching (SaturnPcb.com)Install PI Network to Filter
Thank you
scoutalarm.commblabs.orgBlog: DanielDLindmark.comemail: [email protected]: @MakeBelieveInc
