Portable 5in Monitor with HDMI - Adafruit Industries · Circuit Diagram Circuit Diagram ... Connect FPC Extension Board ... //learn.adafruit.com/portable-5in-monitor-with-hdmi Page

Portable 5in Monitor with HDMICreated by Ruiz Brothers

Last updated on 2017-06-12 03:41:37 PM UTC

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Guide Contents

Guide ContentsOverview

Multi-Purpose MonitorEmbedded DisplayDesign & 3D PrintingTools & SuppliesExtra Parts

3D PrintingPartsSlice Settings

Circuit DiagramCircuit Diagram

On/Off SwitchConnect Switch to PowerBoostSwitch WiresStrip WiresSecure WiresTin WiresSecure SwitchTrim SwitchTin SwitchSolder Wires to SwitchCheck WiresHeat ShrinkSecure PowerBoostConnect Switch to PowerBoostTest Switch & Battery

TFP401 DriverConnect PowerBoost to DriverSecure Display DriverDisplay Driver WiresStrip WiresSecure WiresTin WiresConnect Wires to Display DriverCheck Wires

© Adafruit Industries https://learn.adafruit.com/portable-5in-monitor-with-hdmi Page 2 of 35

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Connect Display Driver to PowerBoostSecure PowerBoostSolder Wires to PowerBoostCheck WiringTest Circuit

DisplayConnecting DisplayConnect FPC Extension BoardConnect Display to FPCOrient DisplayConnect DisplayCheck Display ConnectorsFit ConnectorMount FPC BoardCheck Display ConnectorsGet Display DriverConnect DriverTest HDMI

AssemblyInstall Display to CaseSnap EdgesCheck Display CornersRemove Protection FilmInstall Display DriverMount Display DriverInstall PowerBoostMount PowerBoostInstall SwitchConnect BatteryMount BatteryJoining PartsClose CoverSnap Fit EdgesFinal Check


Overview

Multi-Purpose Monitor

Are you in need of a small screen for your project? Our 5" (800x480) TFT display might bejust what you're looking for. This display features a standard 40-pin connector and iscompatible with our TFP401 HDMI breakout. Combined with our PowerBoost and a lipobattery, you can make this into a portable display. Our 3D printed case houses all of theelectronics to make a nice little package. You only need to wire four connects, so it's a veryeasy DIY project that you can make in just a half an hour.

Embedded Display

There's lots of ways to position the display driver, effectively giving you the ability to mountthe HDMI port in any orientation. This can be very useful, especially when you need toembed the display into an enclosure. Our 40-pin FPC extension board gives you theflexibility to position the display driver away from the display, giving you the ability to designyour own setup.

Design & 3D Printing

I designed the case to house the screen, display driver, powerboost, battery and on/offswitch. It's actually quite thin compared to a regular display because it doesn't need VGAor composite inputs. This is about as small as you can get, so it's great if you need to savespace. The cover and case are designed to snap together. I designed little nubs on theedge of the case that snap into corresponding indentations so the two pieces actually locktogether. It's also easy to take apart. The microUSB port from the display driver andpowerboost are accessible, so it's easy to power off a USB port or recharge the battery.


1 x 5.0" 800x480 TFT Display40-pin without touchscreenAdd To Cart1 x TFP401 HDMI Breakout40-pin TTL without touchAdd To Cart1 x FPC Extension Board40-pin 200mm flex cableAdd To Cart1 x Powerboost 1000C5V lipo charger USB boost @1AAdd To Cart1 x 2500mAh BatteryLithium Ion Polymer 3.7VAdd To Cart1 x Slide SwitchSPDT breadboard-friendlyAdd To Cart1 x Tripod Screw InsertCamera and Tripod 3/8" to 1/4" Adapter ScrewAdd To Cart


https://www.adafruit.com/product/1680














Tools & Supplies

To put together the electronics, we just need a few tools like a soldering iron and some wirecutters. But using a panavise and helping third hands just makes things easier.

1 x Panavise Jr.Helps hold onto components while solderingAdd To Cart1 x Solder IronHeat pen used for melting solder wireBuy Now1 x Helping Third HandHelps hold onto wires while solderingAdd To Cart1 x 30AWG WireSilicone cover stranded wireOut of StockNotify Me1 x Flush CuttersHakko Precision Flat PliersAdd To Cart1 x Wire StrippersHakko Professsional Quality 20-30 AWG Wire StrippersAdd To Cart

Extra Parts

These are some additional parts that you might find useful. In the main photo, you can seeI'm using a Raspberry Pi 3, keyboard and a short HDMI cable, all of which are available inthe shop.

Slim HDMI Cable – 1.5 feet (450mm) (http://adafru.it/fTQ)Raspberry Pi 3 Case (http://adafru.it/wEC)Rii Wireles Keyboard + Mouse Combo (http://adafru.it/wED)




https://www.adafruit.com/new?q=soldering iron&

https://www.adafruit.com/new?q=soldering iron&













3D Printing

Parts

There's just two parts for this project, the enclosure and cover. I added an extra stand justfor propping up the screen. The case features a hole near the bottom center for inserting atripod screw adapter (3/8" to 1/4" (http://adafru.it/toF)) so you can mount it to any standardtripod (http://adafru.it/toE).

5in-case

main enclosure. display is mounted to this part no supports needed!

5in-cover

back cover of the enclosure. the battery, powerboost, displaydriver, and switch are mounted to this part.

supports? nope!

5in-stand

basic stand for propping up the displayneeds supports forbridging the ribs

Download Fusion 360 Archivehttp://adafru.it/wEEDownload STLs from Thingiversehttp://adafru.it/wEFDownload STLs from YouMaginehttp://adafru.it/wEGDownload STLs from Pinshapehttp://adafru.it/wEH




http://a360.co/2qyPnX4

https://www.thingiverse.com/thing:2354850

https://www.youmagine.com/designs/5in-portable-hdmi-display

https://pinshape.com/items/35973-3d-printed-5in-portable-hdmi-display

Slice Settings

I sliced the parts using CURA and Simplify3D. Both are great slicers, you'll have to adjustyour slice settings in order to properly produce a tool path that is optimized for perimeters.The tolerances may slightly vary from printer to printer.

Simplify 3D – Flashforge Creator Pro

Nozzle Diameter: 0.4mmExtrusion Width: 0.48mmExtrusion Multiplier: 100%Extruder Temp: 220CInfill: 20%Bed: No heat (PrintInZ Build Surface)Default Print Speed: 60mm/sTravel Speed: 90mm/s

CURA – Ultimaker 2+

Nozzle Diameter: 0.4mmLine Width: 0.5mm


Extruder Temp: 220CInfill: 20%Bed: 65C (Glass surface)Default Printing Speed: 70mm/sTravel Speed: 150mm/s


Circuit Diagram

Circuit Diagram

This provides a visual reference for the wiring of the components. They aren't true to scale,just meant to be used as reference.

To power this circuit, we'll use a 3.7v 2500mAh lipo battery. The PowerBoost has an onboard regulator that will convert the voltage to 5V automatically. It also has on-boardcharging circuit, so we can recharge it over USB when the battery gets low.

Ground from PowerBoost to SwitchEnable from PowerBoost to Switch5V from PowerBoost to 5V on TFP401Ground from PowerBoost to ground on TFP401


Battery to JST connector on PowerBoost


On/Off Switch

Connect Switch toPowerBoost

I’m going to start by connectingthe slide switch to thePowerBoost.

Switch Wires

To do this, I’ll use wire strippersand a spool of wire. I’ll need tocut two pieces of wire from thespool and make sure they’re longenough to fit inside the case.


https://learn.adafruit.com/assets/42028


Strip Wires

Then, I’ll use the wire strippers toremove a bit of insulation fromthe tips of each wire.

Secure Wires

I like to secure my wires to a pairof third helping hands. I find iteasier if the exposed wires areoriented facing the samedirection.

Tin Wires

To prevent the strands of wirefrom fraying, we can tin them byadding a small bit of solder.




Secure Switch

Once that’s done, I’ll swap outthe wires for the slide switch.

Trim Switch

I’ll snip off one of the leads fromthe switch and cut the remainingtwo in half using flush diagonalcutters. Now I can work onattaching the wires to the slideswitch.

Tin Switch





First, I’ll add a bit of solder to theleads on the slide switch. Thismakes it more sticky so it’s easierto attach wires.

Solder Wires toSwitch

Using the tip of the solderingiron, I’ll heat up tinned solder andconnect the wires.

Check Wires

With that done, I’ll double checkto see if the solder joints are niceand solid.





Heat Shrink

A piece of heat shrink tubing willkeep these two wires together.Just slip the wires through andapply heat to shrink the tubing.

Secure PowerBoost

Now that we have our switchedwired up, we can work onconnecting it to thePowerBoost. I’ll use a panaviseto secure the PowerBoost so thatI can keep it steady while I do thesoldering.

Connect Switch toPowerBoost

The first wire from the switch willconnect to the Enable pin, andthe second wire will go toGround.





Test Switch &Battery

Now we have our slide switchwired up to the PowerBoost. I liketo check my work every so oftenso we can actually plug in thebattery and test the switch to seeif it’s all good. If it is, we shouldbe able to power it on andoff. The little blue LED indicatewill light up when it’s on.



TFP401 Driver

ConnectPowerBoost toDriver

Next we’ll work on connecting thePowerBoost to the TPF401display driver.

Secure DisplayDriver

Again, using the panavise tokeep the board secured while Ido some soldering.




Display Driver Wires

I’ll need two more pieces of wire,this time for the voltage andground connections for thedisplay driver.

Strip Wires

Again, I’ll use wire strippers tostrip the tips of each wire.

Secure Wires

And back to the third helpinghands to assist me by holdingthem in place while I tin them up.




Tin Wires

I find it much quicker to tin all ofthe tips of they're all held in closeproximity of each other.

Connect Wires toDisplay Driver

With these wires all prepped,they’re ready to connect to thevoltage and ground pins on theTPF401 display driver.

Check Wires





I’ll connect the blue wire to theground pin and the red to the 5volts pin.

Connect DisplayDriver toPowerBoost

After that we’re ready to connectit to the PowerBoost.

Secure PowerBoost

So i’ll go ahead and secure thePowerBoost to the panavise.





Solder Wires toPowerBoost

The ground wire from the displaydriver goes to ground on thepowerboost, and voltage tovoltage.

Check Wiring

And with that complete, we’repretty much done with all of thewiring and soldering.

Test Circuit

At this point, I’ll connect thebattery back to the PowerBoostand test the circuit, onceagain. So far so good, now wecan work on connecting thedisplay to the TPF401 driver.






Display

Connecting Display

First, i’ll connect this 40-pin FPCExtension Board to the flexcable.

Connect FPCExtension Board

The side with the blue strip facesup and gets inserted into theconnector. Once it’s fully seated,we can close the latch to secureit.




Connect Display toFPC

Now we can connect the displayto the FPC extension board.

Orient Display

We’ll need to flip the display overand orient the connector so thecopper pads are facing down.

Connect Display

Insert the connector so it’s fullyseated and press the latch downto secure them together.




Check DisplayConnectors

Inspect the latch is fully seatedand the cable has been installedstraight.

Fit Connector

Then I’ll flip the display andposition the flex PCB andextension board so they’re on theback of the metal casing.

Mount FPC Board





I used a piece of mounting tackto secure the extension board tothe metal casing. This way it’llstay in place and makes theassembly a bit more easier.

Check DisplayConnectors

Make sure the FPC board issecured to the back of thedisplay.

Get Display Driver

Next up, let’s connect the screento the TFP401 display driver.





Connect Driver

The silver pads on the flex cableshould be facing up, then we caninsert and fully seat theconnector. We just need to pressin the little tabs on the side tosecure it shut.

Test HDMI

A quick test using a GoPro andwe can see the display is workingnicely. The HDMI out from theGoPro looks pretty clean. Andwith that, we can move ontomounting the components to the3D printed case.




AssemblyBefore install display, remove the protective film from the screen! If you don't do it now, youmight find it hard later. Or just make sure the green tab is accessible.

Install Display toCase

I’ll start with installing the screeninto the 3D printed housing. Weneed make sure the orientation iscorrect then we can insert thedisplay into the holders.

Snap Edges

Just press the side and cornersfrom the display down until thelittle nubs grabs hold of the metalcasing. They should just snapinto place.




Check DisplayCorners

Flip the display over and doublecheck to make sure it’s fullyseated and installed.

Remove ProtectionFilm

While we’re here, why not peeloff the protective film, it’s alwaysoddly satisfying.

Install Display Driver

Next we’ll mount the displaydriver to the back cover. Orientthe PCB facing down and rest themounting holes over thestandoffs.




Mount DisplayDriver

Then we can insert and fasten 4-machine screws into themounting holes and secure thePCB to the cover. You'll need #4-40 3/8" flat Philips machinescrews.

Install PowerBoost

Next up, place the PowerBoostonto the corresponding standoffs.

Mount PowerBoost

and hold it in place whileinserting just two machine





screws. Fasten until fullytightened.

Install Switch

Last but not least, we’ll fit theslide switch into the little holdernear the top, close to the displaydriver.

Connect Battery

Now we can plug in the batteryonce again and work out how tomount the battery to the cover.





Mount Battery

I just used four little pieces ofmount tack, but you can stick ontape or some other type ofadhesive. There’s a free spotnext to the driver, so it fits herenicely.

Joining Parts

All that’s left to do now is to bringthe two pieces together.

Close Cover




You'll need to position the flexcable so it folds in a position thatallows you to close to the case.

Snap Fit Edges

The back cover has littleindentations in the lip. The casehas little nubs that snap into theindentations and is secured inplace without the use of anyscrews, which is cool.

Final Check

And that’s pretty much,everything is installed and ready!

© Adafruit Industries Last Updated: 2017-06-12 03:41:36 PM UTC Page 35 of 35




Documents

Portable 5in Monitor with HDMI - Adafruit Industries · Circuit Diagram Circuit Diagram ... Connect FPC Extension Board ... //learn.adafruit.com/portable-5in-monitor-with-hdmi Page