# FPV Mini Display
## Overview
https://www.youtube.com/watch?v=dOwJ6KlTIeQ
## Mini FPV monitor
Build a tiny portable FPV (First-person view) monitor! Great to use as a spectator display at an event or attach to your controller as a backup to goggles. It's rechargeable and has access to the band, channel and brightness controls.
The 2.5" TFT display is powered by a 500mAh lipo battery and a PowerBoost 1000C. The Eachine ER32 VRX AV receiver has 32 channels with frequencies from 5645-5945MHz. Small and low cost with a wide voltage input, it connects to the PowerBoost 1000C.
## Adafruit Parts
- [2.5" TFT Display](https://www.adafruit.com/products/912)
- [Powerboost 1000c](https://www.adafruit.com/products/2465)
- [6mm Slim Buttons](https://www.adafruit.com/products/1489)
- [500mAh Battery](https://www.adafruit.com/products/1578)
- [Slide Switch](https://www.adafruit.com/products/805)
- [Eachine ER32 VRX FPV AV Receiver](http://amzn.com/B017BFX3JQ)
## Tools and Supplies
- [3D Printer](https://www.adafruit.com/category/128) + [Filament](https://www.adafruit.com/products/2080)
- [Soldering Iron](https://www.adafruit.com/categories/84) + [Solder](https://www.adafruit.com/categories/84)
- [30AWG Wire](https://www.adafruit.com/products/2051)
- [Helping Third Hands](https://www.adafruit.com/products/291) / [Panavise](https://www.adafruit.com/products/151)
- [Heat Shrink](https://www.adafruit.com/products/1649)
- Mounting Tack
- [Wire Stripper](https://www.adafruit.com/products/527) / [Cutters](https://www.adafruit.com/products/152)
- Hobby Knife
# FPV Mini Display
## Circuit Diagram
## Electronics
Follow the circuit diagram below and reference the connections for wiring the circuit. Lay out the parts and circuits as shown and then measure each wire with enough slack to solder each component. Lable each set of wires to keep track which wire goes where.
## Display Driver
Remove the driver from the display to make soldering easy.
Use a panavise to hold the board in place while soldering.
Solder the **Video +** (4th pin) to the 3rd pin on the FPV receiver.
Solder **Video -** (3rd pin) to the 2nd pin on the FPV receiver.
Connect the 1st pin on the display to the **5v** on the powerboost.
The 2nd pin on the driver connects to the **G** pin on the powerboost.
The order of the pins for the **Brightness** button don't matter.
## FPV receiver
The 1st pin on the FPV connects to **+** on the powerboost.
The 2nd pin on the FPV connects to the **-** on the powerboost.
The order of the pin for the **Band** and **Channel** button don't matter.
## Slide Switch
Trim the pins short on the slide switch before soldering wires.
Connect one of the pins on the slide switch to the **EN** pin on powerboost.
Connect **GND** right next to the EN pin on the slide switch.
# FPV Mini Display
## 3D Printing
[Download Design](http://www.thingiverse.com/thing:1611044)
[Edit Design](http://a360.co/1RVqtpu)
## 3D Printed Parts
The FPV Monitor is split into 5 different pieces. The two case parts snap fit together without any screws.
The 6mm buttons mount into the lid part.
A riser fits on top of the Powerboost 1000c to elevate the FPV Receiver.
Use #6-32 1/2in screws with nuts to attach the two clamps on controllers.
An M5 x 20 Bolt and acorn nut attaches the case to the clamp parts.
## Slicer Settings
To slice the parts, we used Simplify3D. We recommend using the settings below or use them as reference. We 3D printed these parts on a Ultimaker 2+. If you have Simplify3D, you can download our profiles below.
## Customize The Design
The parts where designed in Autodesk Fusion 360. The design is public and available to download in different formats. If you'd like to use a different CAD software package, you are free to import the files and remix them.
[Customize Design](https://www.youtube.com/watch?v=Qv-nTkJnz1w)
## Filament Materials
We recommend using PLA material to reduce wrapping while 3D printing. The parts can be printed in different types of filament, such as ABS, PET or Nylon.
## Tolerances
The slots for the buttons may have tight tolerances. Test the tolerances by inserting all of components into each slot. If parts don't fit into the slots, you may need to use a craft knife or filing tool to loosen the area.
## Generating Supports
The top body case will need supports underneath the three hinge parts. We can optimize the print by adding supports beneath three hinge parts until it looks like the picture above.
For the lid, add one support pillars inside each button slot. Make sure the pillars don't touch the side of the walls or the supports can fuse to the walls of the slots.
## Removing supports
Use flat pliers to help remove supports. The supports should pull off easy, but take care not to damage the hinge if the supports are fused to the parts.
Use flat pliers to remove the supports inside the button slots.
Use a hobby knife to remove left over filament left over from retraction.
# FPV Mini Display
## Assemble
https://www.youtube.com/watch?v=Qv-nTkJnz1w
## Display driver
To make soldering easy, we'll need to remove the display driver by unlocking the black plastic bar to release the ribbon cable.
Use a panavise to hold the driver while soldering each wire as shown in the circuit diagram.
## Brightness button
Solder wires to the two pads as shown above. Careful not to bridge any connections by using a fine tip to solder.
## FPV AV Receiver
Carefully tin and solder each wire for composite, composite negative, power, ground, band and channel buttons.
## Adding Tac
We couldn't fit standoffs in the compact enclosure, so mounting tac is used to hold the battery and powerboost in place.
Add four dots to the battery and five dots to the powerboost to help them stick to the back of the display. Make sure to add enough tac so they are elevated above the display.
## Mounting buttons
Straighten the pins on the buttons so the can fit through the slots inside the mounts. Use a flat plier bend to the pins.
The tolerances will be tight, use a hobby knife to help loosen the slots.
## Tin buttons
Make sure the button pins poke through the slots and tin and solder each button.
Use a panavise to hold the lid while soldering.
## Solder Powerboost
Solder each connection to the powerboost as shown in the circuit diagram.
## Slide Switch
Shorten the pins on the slide switch with a flush cutters and then tin and solder each wire.
## Circuit Complete!
Add tac to the top of the battery to help level the display driver.
## Insert into case
Make sure the clean the inside of the case of any filament left over from retraction before fitting the components inside. Carefully angle the display into the case as shown.
Add tac to the powerboost riser to mount the FPV receiver.
## Antenna
Screw on the antenna to the receiver and tune to the channel the FPV camera is on the test the monitor.
## Attaching display to controller
If you plan to use the monitor on the controller, use #6-32 1/2 inch screws and nuts to attach the clamp parts to the antenna on the controller.
## Fly Safe!
Make sure to complete charge the battery before flying!
## Featured Products
### NTSC/PAL (Television) TFT Display - 2.5" Diagonal
[NTSC/PAL (Television) TFT Display - 2.5" Diagonal](https://www.adafruit.com/product/912)
Yes, this is an adorable small television! The visible display measures only 2.5" (6.35cm) diagonal, the TFT comes with a NTSC/PAL driver board. The display is very easy to use - simply connect 6-12VDC to the red and black wires, then connect a composite video source to the yellow and...
No Longer Stocked
[Buy Now](https://www.adafruit.com/product/912)
[Related Guides to the Product](https://learn.adafruit.com/products/912/guides)
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[PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A](https://www.adafruit.com/product/2465)
PowerBoost 1000C is the perfect power supply for your portable project! **With a built-in load-sharing battery charger circuit, you'll be able to keep your power-hungry project running even while recharging the battery!** This little DC/DC boost converter module can...
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### Tactile Switch Buttons (6mm slim) x 20 pack
[Tactile Switch Buttons (6mm slim) x 20 pack](https://www.adafruit.com/product/1489)
Slim clicky momentary switches are standard input "buttons" on electronic projects. These are half the width of classic 6mm tactile switches so they line up better on a breadboard, just plug them into every-other row. These work best in a PCB but
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### Breadboard-friendly SPDT Slide Switch
[Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805)
These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as...
Out of Stock
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[Related Guides to the Product](https://learn.adafruit.com/products/805/guides)
### Lithium Ion Polymer Battery - 3.7v 500mAh
[Lithium Ion Polymer Battery - 3.7v 500mAh](https://www.adafruit.com/product/1578)
Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 500mAh for a total of about 1.9 Wh. If you need a larger (or smaller!) battery,
In Stock
[Buy Now](https://www.adafruit.com/product/1578)
[Related Guides to the Product](https://learn.adafruit.com/products/1578/guides)
### Silicone Cover Stranded-Core Wire - 30AWG in Various Colors
[Silicone Cover Stranded-Core Wire - 30AWG in Various Colors](https://www.adafruit.com/product/2051)
Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to...
Out of Stock
[Buy Now](https://www.adafruit.com/product/2051)
[Related Guides to the Product](https://learn.adafruit.com/products/2051/guides)
### Hakko Precision Flat Pliers
[Hakko Precision Flat Pliers](https://www.adafruit.com/product/1368)
These Italian-made Hakko pliers are excellent for any precision work. The nose is flattened and fairly short to provide excellent control. The inside of the jaws is also flattened so they won't leave ridge-marks. And the grips are ultra comfy too, you can use these all days with no...
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[Buy Now](https://www.adafruit.com/product/1368)
[Related Guides to the Product](https://learn.adafruit.com/products/1368/guides)
### Flush diagonal cutters
[Flush diagonal cutters](https://www.adafruit.com/product/152)
These are the best diagonal cutters, large super-comfortable grip to use and have strong nippers for perfect trimming of wires and leads. I've used my pair every day for years.
In Stock
[Buy Now](https://www.adafruit.com/product/152)
[Related Guides to the Product](https://learn.adafruit.com/products/152/guides)
## Related Guides
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