Product overview
The Happymodel Mobula7 O4 2S 80mm Digital HD Micro FPV whoop is a BNF flight platform for indoor and backyard FPV flying, including freestyle use. Its supplied hardware combines an M80 frame, four RS1102 KV10000 brushless motors, HQPROP 45MMX3 tri-blade propellers and a DJI O4 Air Unit. The package includes four clockwise and four counterclockwise propellers, one canopy and a screwdriver. The aircraft supports a 2S battery and offers around five minutes of flight time.
The CrazyF405HD ELRS flight controller integrates a 4-in-1 ESC, serial ExpressLRS 2.4GHz reception, a barometer, blackbox and voltage/current sensing. Its STM32F405RGT6 processor runs at 168MHz, and the BMI270 gyro uses an SPI connection. Controller mounting-hole dimensions are 25.5 × 25.5mm. The O4 transmission module measures 30 × 30 × 6mm, and the camera module measures 13.44 × 12.36 × 16.50mm. Camera, coaxial and 3-in-1 cables are each 50mm long; the Air Unit weighs approximately 8.2g including its camera.
The DJI O4 Air Unit delivers 1080p live view at 30/50/60/100fps, with region-dependent operating frequencies and transmitter power limits. Using a DJI FPV Remote Controller requires Betaflight firmware with SBUS support, import of the factory dump and settings changes; flight-controller hardware modification is unnecessary. A firmware upgrade with barometer use requires the BARO_DPS310 build define. The installed O4 Air Unit also carries a service constraint: warranty problems require its return to mainland China.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity | Happymodel Mobula7 O4 2S 80mm Digital HD Micro FPV whoop. |
| Platform type and intended use | BNF micro FPV flight platform for indoor and backyard flying. |
| Battery support, flight time and factory SKU | 2S battery support; freestyle flying; flight time around 5 minutes; factory SKU 5A10097. |
| Frame and flight controller | 1 Happymodel M80 frame; 1 CrazyF405HD ELRS flight controller with CRAZYBEEF405 firmware target.Supplied package. |
| Motors and propellers | 4 RS1102 KV10000 brushless motors; 1 propeller set of HQPROP 45MMX3 tri-blade propellers, comprising 4 clockwise and 4 counterclockwise propellers.Supplied package. |
| Video equipment and accessories | 1 DJI O4 Air Unit; 1 canopy; 1 screwdriver.Supplied package. |
| Motor specifications | Model RS1102 KV10000; configuration 9N12P; stator diameter 11mm; stator length 2mm; shaft diameter Φ1.5mm; motor dimensions Φ13.5mm × 14mm (diameter × length); weight 2.8g; LiPo cell count 1–2S.RS1102 KV10000 motor. |
| Propeller specifications | Weight 0.33g; polycarbonate material; pitch 0.9; diameter 45mm; hub thickness 5mm; shaft 1.5mm.Supplied propeller type. |
| Processor, firmware, gyro and mounting | STM32F405RGT6 MCU, 168MHz and 1Mbyte flash; CRAZYBEEF405 firmware target; BMI270 gyro with SPI connection; mounting-hole dimensions 25.5mm × 25.5mm.Flight controller. |
| Controller power supply | 1–2S battery input, DC 2.9V–8.7V.Flight controller battery input. |
| Integrated electronics and sensing | BLHeli_S 4-in-1 ESC rated 12A each; serial ExpressLRS 2.4G; BMP280 barometer; 8MBp blackbox; voltage sensor with scale 110; current sensor with scale 470.Flight controller integrated equipment. |
| ESC supply and current | 1–2S LiPo/LiPo HV supply; 12A continuous current; 15A peak current for 3 seconds.Onboard 4-in-1 ESC; peak rating applies for 3 seconds. |
| ESC firmware and protocol | Supports BLHeli_S Bluejay firmware; factory firmware Bluejay ESC V0.19; target Z-H-30; default protocol DSHOT300.Onboard ESC factory configuration. |
| ESC startup-power requirement | Set startup power to 1100/1200.When using a 1S battery and high-KV 0702/0802 motors. |
| Receiver radio specifications | Packet-rate options 25Hz/50Hz/150Hz/250Hz/500Hz; RF frequency 2.4GHz; enameled copper-wire antenna 31mm long; telemetry output power less than 12dBm.Onboard UART ExpressLRS 2.4GHz receiver. |
| Receiver firmware | Default firmware ExpressLRS V3.0.1; firmware target HappyModel EP 2400 RX; firmware can be updated through ExpressLRS Configurator.Onboard UART ExpressLRS receiver factory configuration. |
| Air Unit weight and module dimensions | Air Unit including camera approximately 8.2g; transmission module 30 × 30 × 6mm (L × W × H); camera module 13.44 × 12.36 × 16.50mm (L × W × H).DJI O4 Air Unit; weight includes the camera module. |
| Cable lengths | Camera cable 50mm; coaxial cable 50mm; 3-in-1 cable 50mm.DJI O4 Air Unit. |
| Video operating frequencies | 5.170–5.250GHz and 5.725–5.850GHz; operation is region dependent and subject to local regulations.DJI O4 Air Unit; operating frequency varies by region. |
| Video transmitter EIRP | 5.1GHz: less than 23dBm (CE). 5.8GHz: less than 30dBm (FCC), less than 14dBm (CE), less than 30dBm (SRRC).DJI O4 Air Unit; ratings depend on frequency band and regional designation. |
| Live-view quality | 1080p at 30/50/60/100fps.DJI O4 Air Unit. |
| Remote-controller integration requirement | Reflash Betaflight with SBUS protocol support, import the default factory dump through the CLI and change the required Betaflight settings; no flight-controller hardware modification is required.When using a DJI FPV Remote Controller. |
| Barometer firmware-build requirement | Add the custom define BARO_DPS310 in Betaflight Configurator build configuration before loading online firmware.When upgrading firmware and using the barometer. |
| Air Unit warranty return requirement | The installed DJI O4 Air Unit requires return to mainland China for warranty service.Warranty problem with the DJI O4 Air Unit installed on the BNF drone. |
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