Eachine LAL5: Cheap 4K FPV race drone

Like most popular FPV drone brands, Eachine also started to equip their quadcopters with the Cadax TARSIER 4K dual-lens camera. The Eachine LAL5 is build on a robust, orthogonal X-shape carbon fiber frame with 225mm wheelbase. Featuring versatile LAL-F405 flight controller it can be configured with multiple flight modes. 

The 2507 type 1850KV motors are matched with Racerstar 5046 (5″ 3leaf) propellers. The motors are driven by a powerful 50A rated 4-in-1 ESC. The Eachine LAL5 drone can be powered by 4s as well by 6s LIPO batteries – LIHV (high voltage LIPO packs) are also supported.

Eachine LAL5 quadcopter features & specs

• Robust 225mm size carbon fiber frame (5 mm arm thickness);
• Orthogonal X-shape design;
• Quick arm replacement;
• EACHINE customized LAL-F405 flight controller;
• Bluetooth remote configuration (SpeedyBee APP);
• 2507 1850KV brushless motors;
• 50A Blheli_32 3-6S ESC;
• 40CH/5.8G Eachine TX805 FPV transmitter (25mW/200mW/600mW/800mW power);
• Cadax TARSIER 4K V2 dual-lens camera;
• 4-6 LIPO compatible.

Eachine LAL5 main parts

Customized LAL-F405 Bluetooth Flight Controller specs

• CPU: STM32F405 master;
• MPU: MPU6000 (via SPI);
• Input voltage: support 2-6S Lipo input;
• Onboard Bluetooth module, support APP configuration via smartphone;
• Firmware: MATEKF405;
• Integrated German Bosch BMP280 high precision barometer;
• Built-in 5v/2A; 10V/2A BEC output
• Reserve MicroSD BlackBox;
• Reserve 5 serial ports and I2C interface for convenient GPS access (Bluetooth occupies TX5/RX5);
• Supports multiple types of receivers (eg SBUS, SUMH, SUMD, SPEKTRUM1024/2048, XBUS or PPM);
• With LED programming signal output port, support programmable LED light strip, can be adjusted by flying control with color and flash mode;
• Has a voltage monitoring port (BAT) and a current monitoring port (CRT) to monitor  battery voltage and current (requires additional power);
• With buzzer output port, support for external alarm buzzer for sound warning or notification of aircraft flight status;
• Support for BetaFlight/Inav racing firmware;
• Size: 37 x 37 mm;
• Mounting hole: 30.5 x 30.5 mm;
• Weight: 5.9 grams.

Electronic speed controller (ESC) specs

• Continue current: 50A;
• Burst current: 60A (10s);
• Input voltage: 3-6S;
• BEC: NO ;
• Current sensor: YES;
• Main control chip: STM32F051;
• Mos chip: TPH1R403;
• Firmware: Blheli_32;
• Support DSHOT 150/300/600/1200/MULTISHOT/PWM/ONESHOT;
• MOS:5 * 6;
• Galvanometer: None;
• Mounting holes: 30.5 x 30.5 mm;
• Size: 49 *37 mm
• Weight: 13.5 grams.

Motor specs

Model: 2507;
KV: 1850;
Idle current (IO/10V): 1.42A;
No.of Cells(Lipo): 3-6S;
Peak current: 45A;
Max. power: 1080W;
Max. thrust: 1750g(6s/5“);
Configu-ration:12N14P;
Internal Resistance: 0.0398Ω;
Stator diameter: 25mm;
Stator thickness: 7mm;
Height: 19.5mm;
Width: φ31mm;
Shaft diameter: φ5mm;
Motor mount hole size: M3;
Recommend propeller: 5-7 Inch;
Weight: 43g.

Eachine TX805 specs

• Frequency: 5.8G;
• Channels: 40CH;
• Input voltage: 7V~24V;
• 120mA(MAX)—-25mW@12V;
• 200mA(MAX)—-200mW@12V;
• 300mA(MAX)—-600mW@12V;
• 350mA(MAX)—-800mW@12V;
• Extra features: Smart audio;
• Power supply: 5V output for Camera;
• Output power: 25mW/200mW/600mW/800mW switchable;
• Antenna connector: MMCX;
• Cable connector: Solder pads;
• Dimensions: 36 x 22 x 5mm;
• Weight: 8g (excluding antenna).