How to Build an FPV Drone: Parts List and Step-by-Step Guide

This guide is written around the most common first build — a 5″ freestyle quad on a 30.5×30.5 stack — but every step applies to a 3.5″ micro or a 7″ long-range build; only the part sizes change. Budget a weekend for the assembly and an evening for the software. The printable drone parts list & build checklist (PDF) has every item below with a tick box.

The complete FPV drone parts list

On the drone:

1. Frame — 5″ freestyle, 4–6 mm arms, 30.5×30.5 mounting. 5″ FPV frames.
2. Motors × 4 — 2207 or 2306 stator; 1700–1950KV for 6S, 2300–2750KV for 4S. 2207 motors · 2306 motors.
3. Flight controller + 4-in-1 ESC (a stack) — F405 or H743 FC, 45–65 A ESC. 30×30 stacks.
4. Video: analog camera + VTX + antenna, or a digital air unit (DJI O4, Walksnail). Decide this with the goggles — they must match. Video systems.
5. Receiver — ELRS 2.4 GHz for almost everyone. ELRS receivers.
6. Propellers — 5″ three-blade, at least 3 sets. 5″ props.
7. Battery × 3–4 — 6S 1100–1550 mAh (or 4S 1300–1550 mAh), XT60. 6S LiPo.
8. Small parts — XT60 pigtail, a 35 V 470–1000 µF low-ESR capacitor, battery strap and pad, M3 hardware, zip ties, heat-shrink, TPU camera and antenna mounts.

On the ground:

9. Radio transmitter with the same protocol as the receiver. ELRS radios.
10. Goggles matching the video system. Goggles.
11. Balance charger, 1–6S. LiPo chargers.

Rather than picking each one by hand, the DIY drone kit builder assembles a compatible set from live stock at three budgets, and lets you swap any slot before adding the lot to your cart.

Tools you need

• A temperature-controlled soldering iron (60 W+, chisel tip), 63/37 leaded or good lead-free solder, flux.
• Hex drivers 1.5 / 2.0 / 2.5 mm and an 8 mm nut driver or prop wrench.
• Wire cutters, tweezers, a small knife, double-sided tape, threadlocker (blue).
• A smoke stopper — a fused XT60 in-line that saves the electronics from a short on first power-up.
• A multimeter. A USB cable that carries data (not just charge).

Soldering · Hand tools · Testing & safety.

Step by step

1. Plan the layout before you solder anything

Dry-fit the stack, camera, VTX/air unit and receiver in the frame. Decide where each antenna exits, which way the FC arrow points (forward), and where the battery lead comes out. Read the FC’s pad diagram and note which UART each peripheral will use — receiver, VTX/air unit, GPS if any.

2. Build the frame and mount the motors

Assemble the arms and bottom plate, then bolt the motors on with the screws the frame maker specifies — too long and they hit the windings. A drop of threadlocker on each. Route the motor wires along the arms; trim them to reach the ESC pads with a little slack.

3. Solder the ESC

Mount the 4-in-1 ESC on soft standoffs, arrow forward. Tin each motor pad and wire, then solder the three wires of each motor to its corner — order does not matter yet; direction is fixed in software. Solder the XT60 pigtail to the main pads (red to +, black to −, check twice) and the capacitor across the same pads, polarity stripe to −.

4. Stack the flight controller

Fit the FC over the ESC on its standoffs and connect the ribbon cable. If the stack didn’t come as a pair, wire battery voltage, ground, current sense and the four motor signal lines to the matching pads by name.

5. Wire the receiver, video and camera

Receiver: 5 V, ground, TX and RX to one UART (TX to RX, RX to TX). Analog: camera to CAM/ground/5 V, VTX to VOUT/ground/voltage (check the VTX’s input range — many take 5 V, some battery voltage), plus a UART TX for SmartAudio/Tramp control. Digital air unit: its own harness to 9 V or VBAT, ground, and a UART pair. Keep wires short and away from the motors.

6. Smoke test

No props. Connect the battery through the smoke stopper. Nothing should get warm and the FC LED should light. Then plug in USB, open Betaflight Configurator and check the model on screen follows the quad as you tilt it.

7. Betaflight setup

1. Firmware — flash the latest stable release for your board’s exact target.
2. Ports — enable Serial RX on the receiver’s UART; VTX (SmartAudio/Tramp/MSP) on its UART.
3. Configuration — ESC protocol (DShot300 for BLHeli_S, DShot600 for BLHeli_32/AM32), board alignment, arming angle.
4. Receiver — bind, then move the sticks and watch the bars; set the channel map if they are swapped.
5. Modes — an arm switch, an angle/acro switch, a beeper, and turtle mode.
6. Motors — props OFF, spin each motor from the tab and confirm the order and direction; reverse a motor in the ESC configurator or with bidirectional DShot settings.
7. OSD — battery voltage, timer, warnings, RSSI/LQ.
8. Failsafe — switch the radio off with the quad armed on the bench (props off): motors must stop.

8. Props on, first flight

Fit props last, clockwise and counter-clockwise where the motor tab said, tightened by hand plus a quarter turn. Take off in a big field, in angle mode, at hip height. Hover, land, feel the motors — warm is fine, too hot to hold is not. Then go and fly.

Where the money goes

The airframe (frame, motors, stack, props) is the smaller half of a first setup; the video system, goggles and radio are the larger half, and they carry over to every drone you build after this one. Digital video costs several times what analog does, mostly in the goggles. The kit builder shows live totals for a budget, balanced and premium version of each size, so you can see the real number before you commit to a video system.

Common first-build mistakes

• Motor screws too long, shorting the windings — check against the motor spec.
• A cold solder joint on a motor pad: the motor twitches and beeps instead of spinning.
• Receiver on a UART shared with something else, or TX/RX swapped.
• Forgetting the capacitor: wavy lines in analog video, occasional FC resets.
• Props on during setup. Never.

Stuck on any of these? Send us a photo of the wiring on WhatsApp — most build problems are a one-line answer.