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Description
Matek ExpressLRS/ELRS Vario Receiver ELRS-R24-V (2.4ghz) EOLAre you looking to buy a Matek ExpressLRS ELRS Vario Receiver in Australia? Specific for the Gliders and other fixed wings. Small in form factor, It can be installed in gliders with restricted payload bays such as DLGs and high performance slopers. Not needing to install an additional altimeter variometer also saves room and weight. The built in barometer provides vertical speed telemetry. The variometer sounds both ascending and descending tones, so
Are you looking to buy a Matek ExpressLRS ELRS Vario Receiver in Australia?
- Specific for the Gliders and other fixed-wings. Small in form factor, It can be installed in gliders with restricted payload bays such as DLG’s and high performance slopers. Not needing to install an additional altimeter/variometer also saves room and weight.
- The built in barometer provides vertical speed telemetry. The variometer sounds both ascending and descending tones, so you will know whether you are in lift or sink without having to look at your transmitter.
- with ExpressLRS firmware and CRSF protocol, this will also give you other telemetry data like battery voltage, current and GPS related.
Specifications
- ESP8285, SX1281, ExpressLRS Firmware
- RF Frequency: 2.4GHz ISM (2400~2480MHz)
- Antenna connector: IPEX MHF-1
- Telemetry power: 12dbm
- CRSF-PWM-V converter with barometer integrated
- 7x PWM outputs (6x with power rails, PWM8 is just a signal pad)
- PWM frequency: 50, 100, 160, 330, 400Hz configurable
- PWM resolution: 4x 1024 position + 3x 128 position(ExpressLRS 2.0 Wide switch mode)
- 1x UART(2) for GPS
- 36V Max. battery voltage sense (1K:10K voltage divider built-in)
- Compatible with external Current sensor (0~3.3V)
- RxBt,Curr,Capa,Bat%,GPS telemetry and VSpd(Vario)
- Rated voltage: 3.5~9V @5V pad, 0~36V @Vbat, 0~3.3V @Curr
- Power dissipation: 50mA(binding), 90mA(wifi mode)
- No 5V regulator built-in, Servos must be powered via 5V pad on CRSF-PWM-V board by external 5V source.
- Failsafe value configurable
- Firmware upgradeable
- Physical:
- PCB Size: 27x16mm,
- Weight: 5g w/ antenna and 2.54 pins
- Packing:
- 1x ELRS-R24-V(includes CRSF-PWM-V and 2.4G Receiver)
- 1x IPEX MHF1 Antenna
- 2.54mm straight and 90° 3×6 Dupont pins
Firmwares
- 2.4GHz Receiver: ExpressLRS /DIY_2400_RX_ESP8285_SX1280, V2.0 or newer
- CRSF-PWM-V: crsf_pwm_v2.0 or newer
Pinouts and Pads
- Tx1/Rx1(UART1) for Receiver integrated
- Tx2/Rx2(UART2) for GPS/firmware update/setting parameters
- 1~8: CH1~CH8 PWM outputs
- Curr: current sensor signal (0~3.3V)
- Vbat: 0~36V Battery voltage sensing
- G: ground
- 4v5 pad voltage = 5V pad voltage -0.3V.
- no 5V regulator built-in, need to power on the board and receiver via external 5V source
Failsafe (FW 2.0.0 or newer)
- CH3 is arranged for the throttle, Failsafe value = 988 by default. you can change the failsafe value of CH3 and other channels by following settings.
- Make sure ESC signal is disconnected from CRSF-PWM board before starting failsafe settings
- Bridge PWM1 and PWM2 signal pad, then power on CRSF-PWM board and receiver.
- Failsafe value will be saved automatically after CRSF-PWM board is powered on and receive CRSF signal. LED blinks 8 times quickly.
- Failsafe value = The PWM value of each transmitter channel when CRSF signal is received by CRSF-PWM board.
- Remove the jumper between PWM 1 and 2, then CRSF-PWM board will work in normal PWM output mode.
LED status
- slow blinks: CRSF-PWM board doesn’t receive CRSF signal, e.g., receiver is not bound with transmitter.
- solid ON: CRSF-PWM board and receiver are working normally
- 5x fast blinks after powering on for 10 seconds: CLI mode is active
GPS telemetry
- Compatible with GPS NMEA protocol, 1Hz, Baud 9600~115200
- GPS “TX” to CRSF-PWM board “RX” Single wire half duplex UART connection, CRSF-PWM board “TX” to GPS “RX” is not essential.
- Support GPS Telemetry ID: GPS, GSpd, Hdg, Alt, Sats
- u-blox series GPS can output “0+1 – UBX+NMEA” protocol by default
- Sensors(GPS, GSpd, Hdg, Alt, Sats) will blink in Transmitter TELEMETRY tab once CRSF-PWM board has connection with GPS.
- Troubleshooting for no GPS telemetry, double check the wiring between GPS and CRSF-PWM board, some u-blox GPS may don’t output NMEA protcol, you need to revert GPS to default configuration in u-center.
- with OpenTX Telemetry Logging, You can plot your flight path or search the lost plane.
VSpd telemetry
- Barometer SPL06-001 (I2C address 0x76) integrated
- VSpd telemetry is supported by ExpressLRS 2.0, EDGE 2.6, OPENTX 2.2 or newer.
TIM & PWM Frequency
- PWM frequency on all 10x Channels can be configured according to TIM
- PWM run at 50Hz by default
- TIM2: CH1, CH2, CH4
- TIM16: CH3
- TIM3: CH5, CH6, CH7, CH8
CLI mode
- If CRSF-PWM board doesn’t detect GPS connected to UART2 within 10 seconds after powering on, CLI mode will active.
- After CLI mode is active, CRSF-PWM board can be connected to configurator via USB-TTL module/FC passthrough.
- in CLI mode, CRSF-PWM board firmware can be updated
- CLI mode has no effect to receiver CRSF signal and PWM outputs
Firmwares
- Pls view CRSF TO PWM CONVERTER page for firmware update of CRSF-PWM-V board
- Receiver has ExpressLRS 2.2.0 preloaded with binding phrase “123456”, the Receiver will never enter binding mode if using the traditional binding procedure.
- It must be flashed without a binding phrase to do traditional binding OR flashed with your binding phrase.
ExpressLRS wiki
Flashing via Wifi
- Disconnect ESC and servos from receiver first.
- Power on receiver by 5V source. Receiver’s LED(Red) will blink slow at first, and after 20s, it should blink fast indicating it’s on Wifi Hotspot Mode.
- More detailed steps, pls refer this page.
- Target: DIY_2400_RX_ESP8285_SX1280_via_WIFI
Flashing via UART
- Disconnect ESC and servos from receiver first.
- Wire the receiver into the USB-TTL adapter, with TX on receiver connected to the Rx on the USB-TTL, and RX on receiver connected to the Tx of the USB-TTL. Wire 5V and GND of the USB-TTL to 5V and GND of the Receiver.
- Press the boot button while powering on the receiver and CRSF-PWM board, (either button on reeciver board or button on CRSF-PWM-V board). and release – the Red LED on receiver should now be solid. and Blue LED on CRSF-PWM-V should now be fast blink
- Select the target DIY_2400_RX_ESP8285_SX1280 and “UART” for Flashing Method, set your bind phrase and Firmware Options and once done, click on Build and Flash.
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 4
Badass speaker🔊
Color: Black
It’s one powerful speaker. 🔈 I’ll have to do another survey after I use it for a couple day I’ve only turned it on once for only 10 minutes but so far so good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
★★★★★ 5
Fast, Reliable, and Stunning Print Quality — Best 3D Printer Value!
Set name: Ender 3 V3 SE
The Creality Ender 3 V3 SE is an absolute powerhouse for the price! At 250mm/s print speed with CR Touch auto leveling, this thing sets up fast and prints reliably right out of the box. The Sprite direct extruder handles flexible and rigid filaments with ease, and the print quality is stunning. Whether you're prototyping custom parts, printing jigs and fixtures, or cranking out creative projects, this printer delivers every time. Best 3D printer value on the market — period!
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Not the biggest kid on the schoolyard, but plays a solid ground game.
Set name: K2 SE, Set name: K2 SE
The K2SE is an excellent printer for users who are still interested in learning and growing within the 3D-printing ecosystem, but who no longer want to spend the majority of their time troubleshooting basic hardware issues. While it may not be a flagship, top-tier machine by today’s standards, it represents a significant step forward—especially when compared side-by-side with older platforms like the Ender 3 Pro.
Out of the box, the K2SE delivers a level of refinement that once required extensive upgrades on earlier printers. Features such as automatic bed leveling, filament runout detection, a sturdier frame with vibration-dampening feet, and a properly supported raised Z-axis bed all come standard. The addition of cloud access and a fluid web interface—complete with optional root access for advanced users—bridges the gap between a consumer-friendly machine and a system that still rewards technical curiosity.
My first print, a simple Kirby model, was intentionally done with minimal tuning to get a baseline feel for the machine. The results were impressive, especially coming from years of compensating for aging components on my Ender 3. With that printer long overdue for a new extruder, I had grown accustomed to managing variables that simply don’t exist on the K2SE. The consistency and reliability here are immediately noticeable.
Although I didn’t have the budget to add the multi-filament CRT system at launch, the printer’s upgrade path is clearly well thought out. Planned expansions like an enclosure, camera monitoring, and multi-material support make it easy to justify future investments. I would also welcome a firmware or hardware update that introduces Bowden extruder support, as it could further improve filament switching speeds and overall print performance.
As someone who has stuck with the same Ender 3 since long before touchscreens, CR-Touch, and modern quality-of-life upgrades became commonplace, it’s refreshing to see Klipper remain a core component of the K2SE. For users who are on the fence about moving away from heavy DIY builds, this printer strikes a compelling balance—offering reliability and speed without sacrificing control.
Perhaps the most underrated benefit is time savings. The K2SE is noticeably faster than older models, and its intuitive touchscreen interface makes it accessible even for non-technical users in my household. After setup, my wife and children can confidently start prints on their own, which speaks volumes about the usability of the system.
Print quality alone justifies the upgrade for patient users. While some may find the stock cooling fans slightly underpowered, the machine compensates with excellent compatibility for multi-tool and threaded expansion systems—an advantage over many Bowden-dependent designs that require significant modification for production or multi-material workflows.
And as a final bonus, despite being scheduled for February delivery, the K2SE arrived weeks early. Getting this machine ahead of schedule was the perfect way to confirm that the upgrade was absolutely worth it for the value price point.
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Reviewed in the United States on January 8, 2026
★★★★★ 1
Don’t buy
Set name: K2 SE Combo, Set name: K2 SE Combo
This printer is pretty awesome. Here is the biggest catch to it. We have spent hundreds of dollars on the app and or validating what we could buy between buying filament and everything else. This thing does not connect properly. It is very technical if you are not smart. This is a terrible thing to buy. I’m a very educated person and so are the other 3 to 4 people in my household that have all tried to use this thing it will not let you change individuals to print off it and even the amount of money you spend to buy credit credits and or other items that you want to purchase in the store do not print properly. This sucks don’t buy it even though this equipment is awesome. This is the worst thing I wish I’d never bought. I do not say this in the test and or ignorance I have studied. I have read up. I’ve looked at forums. I’ve been on Reddit. Everyone says this creatality is extremely difficult and we have definitely found this out firsthand. I would definitely return this, but I think my window has closed. It sucks when you buy a product and you have it for like 2 to 3 weeks before you get to use it but then your window to return it is closed. The app does not match what is online and or if you have more than one person that wants to print, you cannot share unless the other person is logged out and even if the person is logged out, it does not always match the same, so for example, I have tons of money and credit on my account, but it will not let me print out certain apps and or creations then it tells me that it will work on our item that we have purchased, but then it’ll say it does not work. It will not print. 3-D printer is a scam. It sucks. It has great potential but this is not the one for you. Don’t waste your money too much money.
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Reviewed in the United States on February 18, 2026
★★★★★ 5
Forget Adventurer 5M , This is the true and easy to use beginner machine
Set name: Ender 3 V3 SE
This is my 3rd 3d printer. Once I spent about 45 minutes assembling it has been printing nonstop since the amazon driver dropped it off, these are the best for reliability and perfect for hobbyists. It is not the quickest machine out there, but it makes up for it with a quality print good price as well.
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Reviewed in the United States on May 25, 2026