Product Detail
Description of 4-Axis DIY Micro Quadcopter Flight Controller Board (3.7V LiPo)
Overview
This compact 4-axis DIY micro quadcopter flight controller board is powered by a single-cell 3.7V LiPo and integrates flight control, a built-in 2.4GHz receiver and a 6-axis IMU on a tiny 26×26 mm PCB. Designed for Whoop/Inductrix frames, it provides 4 PWM motor outputs for brushed coreless motors — ideal for hobbyists who want a quick, lightweight flight system.
Key features
- Compact 26×26 mm PCB for Whoop/Inductrix mounting patterns
- Single-cell 3.7V LiPo input — small, lightweight power design
- Integrated 2.4GHz receiver (bindable RC protocols supported)
- Onboard 6-axis IMU (3-axis gyro + 3-axis accelerometer) for stabilization
- 4 PWM motor outputs for brushed coreless motors (easy solder connections)
- Ultra-light ≈3.7 g board weight — perfect for micro quad builds
Technical Specifications
| Parameter | Description |
|---|---|
| Input Voltage | 3.7 V (1S LiPo) |
| Motor Outputs | 4 PWM channels (for 4 brushed DC/coreless motors) |
| IMU | 6-axis (3-axis gyro + 3-axis accelerometer) |
| Receiver | Built-in 2.4 GHz radio (supports bindable RC protocols) |
| Board Size | ≈26 × 26 mm (Whoop/Inductrix mounting pattern) |
| Weight | ~3.7 g (without wires) |
| Mounting | Standard 19 mm hole spacing (Whoop frame compatible) |
| Motor Type | Small coreless brushed motors (e.g. 6×15 mm to 8.5×20 mm) |
| Country of Origin | China |
Package Content
- 1 × Four-axis Drone DIY Flight Control Mainboard (integrated receiver)
- (Only the mainboard is included — motors, frame, battery, props, transmitter not included)
What is?
A micro quadcopter flight controller board is the central electronic module that reads IMU sensors,
runs stabilization algorithms and outputs PWM signals to motors.
This board also includes a built-in 2.4 GHz receiver so you can bind a compatible transmitter and control the micro quad.
How Product Works?
The onboard 6-axis IMU senses rotational and linear motion;
the flight controller processes those signals with stabilization firmware and adjusts PWM outputs to each motor for stable flight.
The built-in 2.4 GHz receiver accepts pilot inputs which the controller translates into motor commands.
Usage/Application
- Custom Whoop/Inductrix micro quadcopter builds
- Indoor micro FPV learning and lightweight racing
- Prototyping brushed micro drone concepts and testing small frames
- Educational projects for learning flight control, IMU and RC binding
Caution
Handle soldering carefully — observe correct polarity when connecting the 3.7 V LiPo battery.
Not a toy for children; use protective eyewear when testing.
Follow local RC and airspace regulations when flying.
Warranty & Return Policy
Note: This item cannot be returned. If it arrives damaged or doesn’t work properly,
please contact us for assistance or resolution. Please record a video before opening the box.
Documentation
No official documentation included.
Need Assistance ?
Please call to our office to get more information about products, delivery information, warranty or return policy.
Mobile: +8801641757175
Email: [email protected]
FAQs About 4-Axis DIY Micro Quadcopter Flight Controller Board
Q1: What voltage does this board use?
A: It is powered by a single-cell 3.7 V LiPo battery (1S).
Q2: Does it include motors or props?
A: No — only the mainboard is included. Motors, props, frame, battery and transmitter are NOT included.
Q3: Is it Whoop/Inductrix compatible?
A: Yes — the ≈26×26 mm board uses a Whoop/Inductrix mounting pattern and 19 mm hole spacing.
Q4: What motor types are supported?
A: Small coreless brushed motors (approx. 6×15 mm to 8.5×20 mm) using PWM outputs.
Q5: Is a transmitter required?
A: Yes — bind a compatible 2.4 GHz transmitter protocol to the built-in receiver to fly.
Specifications
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- Model SKU140
- Weight 500 g
- Dimensions 35 × 30 × 7 cm
- Color Black, Pink, Red, White
- Size 10 X 20