DiA FPV (cheapo) monitor

thingiverse

I needed a compact, user-friendly FPV monitor at an affordable price. After searching for a suitable option on Banggood, I found the RX5808 receiver with a 5" display, but its cases were unattractive and impractical. This inspired me to design my own version. Here is the result! Feel free to download and print it yourself - total cost under $30, plus your time. I tested this monitor using a tiny whoop's 260mAh lipo battery, which lasted for half an hour. With over 3000mAh Li-Ion batteries, you can expect an operation time of almost six hours! **Here is the BOM list:** Banggood RX5808 5.8G 48CH FPV Receiver with 480*320 5 Inch HD Display Snow Screen Monitor DIY ($25) https://www.banggood.com/RX5808-5_8G-48CH-FPV-Receiver-with-5-Inch-HD-Displayer-Snow-Screen-Monitor-DIY-For-FPV-Goggles-p-1309235.html?p=MW151810738534201705 Banggood 3 Pins Toggle Switch AC 125V 6A 2 Position SPDT ($1.32) https://www.banggood.com/3-Pins-Toggle-Switch-AC-125V-6A-2-Position-SPDT-p-916750.html?p=MW151810738534201705 For SMA connector, use the one that came with the monitor set or get some SMA pigtail connector (Google it!). You'll also need an M3 bolt at least 10mm long. **Assembly instructions:** See the assembly video: https://www.youtube.com/watch?v=Yvh2YlkTi1U Tape the PCB to the display using double-sided tape. Place the flat cable underneath. Take a broken brushless motor and remove two magnets from it. Grind them with sandpaper for better connection. Solder black and red wires to each magnet. Glue the black wired magnet to the bottom of the Li-Ion holder. Solder the black wire to the GND pad on the PCB.  Solder the red wire to the center pin of the toggle switch and another end to the VBAT pad on the PCB. If you want to keep the RP-SMA connector, leave it alone. Otherwise, replace it with an SMA version and mount it to the cover (an 8mm socket wrench will be helpful). Cut one side of the button panel to make it shorter. Do not cut over the traces. Place its plug and wire through a hole on the bottom of the mount and secure the panel in place. Keep one nut on the toggle switch and insert it into the switch hole on the side of the case. Adjust the nut to your liking, then hot glue it to the spot.  Slide the Li-Ion holder into the case, then arrange the wires behind the display and slide it in. Insert the 18650 Li-Ion battery's negative side to the bottom. Connect the red magnet to the positive side and check if the monitor works. Place the cover on top and secure it with a 45-degree angle from top left to bottom right (there's an angled lock on the left side of the cover). Screw in the M3 bolt, and you're done! Add some 5.8G antenna for extra functionality.