CYCLONE ELRS 2400RX-7CH V1.1 Receiver

Short Description:

CYCLONE ELRS 2400RX-7CH V1.1 is a 2.4GHz receiver with seven PWM channels, CRSF output, 5V headers and an external copper-tube antenna.

Product Name: CYCLONE ELRS 2400RX-7CH V1.1 Receiver
Product Type: 2.4GHz ExpressLRS PWM Receiver
Frequency Range: 2.4GHz
Channels: 7 PWM Channels
Output Interface: PWM / CRSF
Input Voltage: 5V
Control Protocol: ExpressLRS / CRSF
Antenna Type: External Copper-Tube Antenna
Firmware Support: ExpressLRS 3.2
PCB Version: Ver. 1.1

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Product Detail

FAQ

Technical Highlights

2.4GHz ExpressLRS Receiver

The CYCLONE ELRS 2400RX-7CH V1.1 is a 2.4GHz radio-control receiver designed for ExpressLRS-based RC and FPV control systems. It is a control receiver rather than an analog or digital video transmitter.

Seven Direct PWM Outputs

Seven independently labelled channel connections allow servos, an ESC or other compatible PWM-controlled equipment to be connected directly to the receiver. Each channel position is accompanied by 5V and ground connections.

PWM and CRSF Interface Support

The board supports direct PWM channel connections and identifies CH2 as TX and CH3 as RX for a CRSF serial connection. The required output configuration must be selected in the receiver firmware before connecting the target device.

External Copper-Tube Antenna

An external copper-tube antenna connects to the receiver through a detachable micro-coax connection. The external antenna arrangement allows the antenna to be positioned away from conductive frame components and onboard electronics.

Clearly Labelled Connection Layout

The reverse-side silkscreen identifies ground, 5V, CH1 through CH7, TX, RX, LED, BOOT, ADC and GND connections, supporting accurate wiring during installation and maintenance.

ExpressLRS 3.2 Support

The supplied product information identifies ExpressLRS 3.2 support. The receiver and transmitter module should use compatible major firmware versions and matching regulatory-domain settings.

Receiver Specifications

Brand	CYCLONE
Board Model	ELRS 2400RX-7CH
PCB Version	Ver. 1.1
Product Type	ExpressLRS PWM receiver
Operating Band	2.4GHz
PWM Outputs	7 channels
Serial Output	CRSF through the labelled TX and RX connections
Power Connection	5V and ground headers
Antenna	External copper-tube antenna
Firmware Support	ExpressLRS 3.2

Connection Layout

CH1 / BOOT	Channel 1 PWM connection with the board-labelled BOOT function.
CH2 / TX	Channel 2 PWM connection and labelled serial TX connection.
CH3 / RX	Channel 3 PWM connection and labelled serial RX connection.
CH4	Channel 4 PWM output.
CH5	Channel 5 PWM output.
CH6	Channel 6 PWM output.
CH7 / LED	Channel 7 PWM connection with the board-labelled LED function.
ADC	Board-labelled ADC connection. The electrical limits and required scaling must be verified before use.
5V / G	Five-volt and ground connections are arranged alongside the channel headers.

Output Configuration

Use the labelled CH1–CH7 connections when direct PWM output is required.
Use the labelled TX and RX connections when the receiver is configured for CRSF serial communication.
Confirm the receiver output mapping before connecting servos, an ESC or a flight controller.
Functions sharing channel labels, including BOOT, TX, RX and LED, may depend on the selected firmware configuration.
Do not assume that PWM and CRSF functions are active simultaneously without checking the receiver configuration.

Installation Notes

Connect the receiver only to a regulated 5V supply through the correctly labelled power and ground pins.
Verify connector orientation and channel assignments before applying power.
Keep the antenna connected during operation and avoid repeatedly loading the micro-coax connector.
Position the exposed antenna section away from carbon-fibre parts, batteries, high-current wiring and other conductive materials.
Secure the receiver and antenna so that vibration or cable movement cannot pull on the antenna connector.
Confirm that the transmitter module and receiver use compatible ExpressLRS firmware and matching frequency-domain settings.
Perform binding, channel-direction, failsafe and control-range checks before operating the aircraft.

Recommended Applications

Fixed-wing aircraft requiring direct PWM servo outputs.
RC models using up to seven receiver channel connections.
FPV aircraft using an ExpressLRS 2.4GHz control link.
Flight-controller installations requiring a CRSF receiver connection.

FAQ

Is the CYCLONE ELRS 2400RX-7CH a video transmitter?

No. It is a 2.4GHz ExpressLRS radio-control receiver. It does not transmit FPV video and does not provide VTX frequency-channel or video-output-power settings.

How many PWM outputs does the receiver provide?

The board provides seven labelled PWM channel connections, identified as CH1 through CH7.

Does the receiver support CRSF output?

Yes. The board identifies CH2 as TX and CH3 as RX for a CRSF serial connection. The required serial-output mode must be selected in the receiver configuration.

What input voltage should be used?

The power headers are labelled 5V and ground. Use a regulated 5V supply and verify polarity before applying power.

Which ExpressLRS firmware does it support?

The supplied product information identifies ExpressLRS 3.2 support. Confirm firmware compatibility between the receiver and transmitter module before binding.

What type of antenna is supplied with the receiver?

The product images show an external copper-tube antenna connected through a detachable micro-coax connector.

Can the receiver be connected directly to servos?

The seven PWM channel headers include signal, 5V and ground positions for direct PWM device connections. Verify the connected device voltage, channel mapping and current requirements before installation.

B2B Procurement FAQ

Which product identification should be included in an inquiry?

Please identify the product as CYCLONE ELRS 2400RX-7CH Ver. 1.1 and specify the required quantity, destination market and intended PWM or CRSF installation.

Should this product be listed as a VTX or receiver?

Its technical product type is an ExpressLRS receiver. If it is placed in a VTX website category for commercial organization, the product title and specifications should still clearly identify it as a receiver.

What should be verified before a bulk order?

Confirm the exact PCB version, installed firmware version, antenna configuration, pin-header configuration, stock status, packaging, lead time and required compliance documentation during quotation.

Can PWM and CRSF requirements be included in the purchase specification?

Yes. The intended output mode and channel arrangement should be stated in the technical inquiry. Firmware configuration or preparation requirements must be confirmed during quotation.

Are product dimensions and weight available from the supplied material?

No reliable dimensions or weight are shown in the supplied images. Confirm the production-unit drawing and weight before completing mechanical integration or procurement documentation.