Happymodel Bassline: Micro FPV trainer drone

Happymodel Bassline

Featuring a robust carbon fiber true-X Toothpick-style frame with reinforced arms, compact size, and friendly price tag, the new Happymodel Bassline seems to be a great FPV trainer drone for newbies. The design idea was initially born in 2019, inspired by pilot Nathan Loopz.

For beginners, flying an FPV drone for the first time is an exciting but daunting experience since the possibility of crashing their quadcopter is more probable. This is why I recommend do not spend too much for the first quadcopter. The Happymodel Bassline is priced at just US$132.99 at Banggood with a built-in ELRS SPI radio reciever.

Do not let the small size of this FPV quad deceive you because it is quite a performer. It is incredibly light and has powerful motors, making it super agile in the air.

Happymodel Bassline key features 

  • Reinforce Toothpick style carbon fiber frame with a protective canopy;
  • 5-IN-1 AIO flight controller built-in 2.4G ELRS V2.0 and OPENVTX;
  • Support ELRS V3.0 (Need to upgrade firmware)
  • Powerful EX1103 KV11000 motors;
  • High-quality FPV system CaddxFPV Ant FPV camera + 400mW VTX
  • 2S LIPO compatible (350mah/450mah/550mah/650mah recomanded. Battery tray size: max 17mm width and 13mm height.

Technical specifications

Motors Mode: EX1103 KV11000
Configu-ration:9N12P
Stator Diamter:11mm
Stator Length:3mm
Shaft Diameter:Φ1.5mm
Motor Dimension(Dia.*Len):Φ13.5mm*15.5mm
Weight(g):3.8g
No.of Cells(Lipo):1-2S
Propellers Weight:0.88g
Material: PC
Pitch:2.3inch
Props Dia:52.17mm
Center Thickness:5mm
Center Hole Dia:1.5mm
Flight controller X12 ELRS V2.1 flight controller built-in ELRS 2.4G receiver Target: CRAZYBEEF4SX1280

X12 Frsky V2.1 flight controller built-in SPI Frsky 2.4G receiver Target: CRAZYBEEF4FR

X12 Flysky V1.0 flight controller built-in SPI Flysky 2.4G receiver Target: CRAZYBEEF4FS

X12 PNP V1.1 flight controller without onboard receiver Target: CRAZYBEEF4DX

MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: ICM20689 or ICM42688P(SPI connection)
Mount hole size: 25.5mm*25.5mm
Power supply: 1-2S battery input (DC 2.9V-8.7V)
Built-in 12A(each) Blheli_S 4in1 ESC

Built-in Betaflight OSD(SPI Control)
Built-in 5.8G OpenVTX 0mw~400mw
Built-in ExpressLRS 2.4G,Frsky D8/D16,Flysky AFHDS 2A
Built-in voltage detection

Built-in current sensor

Onboard 4in1 ESC Power supply: 1-2S LiPo/LiPo HV

Current: 12A continuous peak 15A (3 seconds)
Support BLHeliSuite programmable
Default Factory firmware: Z_H_30_REV16_7.HEX
Default protocol: DSHOT300

Support Bluejay firmware

Onboard SPI ExpressLRS 2.4GHz Receiver Packet Rate option: 50Hz/150Hz/250Hz/500Hz

ExpressLRS Firmware version: V2.0
RF Frequency: 2.4GHz

Antenna : SMD antenna
Telemetry output Power: <12dBm

Receiver protocol:  SPI ExpressLRS

Compatible with ExpressLRS V2.0 TX Module

Couldn’t flash separately ExpressLRS firmware

Could flash FC firmware to support ExpressLRS v3.0 TX module

Onboard SPI Frsky D8/D16 receiver Version SPI BUS receiver Frsky D8/D16 compatible
Compatible Non EU transmitter D8/D16 modelChannels: 8ch/16ch
No ground interference ( Transmitter and receiver 1 m from the ground): 200meterFailsafe support
Onboard SPI Flysky receiver Version PI BUS receiver
Protocol: AFHDS-2A
Channels: 14ch(AFHDS-2A)
No ground interference ( Transmitter and receiver 1 m from the ground): 200meter
Failsafe support
PNP Version

(without onboard receiver)

Full UART1 for external Receiver
Support CRSF/GHOST/SBUS/IBUS/DSMX protocol
IR1 pad(invert RX1) used for SBUS input
Onboard 5.8g OPENVTX Firmware version: OPENVTX
Smartaudio v2.1
PIT Mode support
RCE Mode support
Channels:48ch
Transmitting Power: 0/RCE/25mw/100mw/400mw
Power supply: DC 5V
Current (5v): <650ma (400mw)
Caddx ANT 1200tvl camera Image Sensor: 1/3″ CMOS Sensor
Horizontal Resolution: 1200 TVL
TV System: NTSC or PAL 
IMAGE: 16:9 or 4:3
Synchronization: Internal
Electronic Shutter: PAL: 1/50~100,000; NTSC: 1/60~100,000
S/N Ratio : >52dB (AGC OFF)
Video Output: CVBS
Lens: 1.8mm
Min. Illumination: 0.001Lux@F1.2
Auto Gain Control: YES
WDR: Global WDR
DNR: 3D DNR
Dimensions: 14*14mm(with bracket to 19*19mm)
Wide Power Input: DC 3.7-18V
Weight: 2g (N.W.)

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