SKU: 26363367354

Matek mR900-30 mLRS (MAVLink long range system) firmware 30dBm RF power 900MHz Receiver

Sale price$33.29 Regular price$36.99
Save 10%

Pay in installments of $9.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Matek mR900-30 mLRS (MAVLink long range system) firmware 30dBm RF power 900MHz ReceiverMATEKSYS mLRS 900MHz series are NOT compatible with ELRS 900MHz & Frsky R9 series using the SX127x. They will not bind with each other. LoRa chip SX126x(e. g. mR900 30, E22) and STM32WLE5xx(e. g. mR900 22, WIO E5, E77) are compatible with each other. https: github. com olliw42 mLRS docu blob master docs SX126x_SX127x_INCOMPATIBILITY. md Experience unparalleled long range connectivity with the Matek mR900 30 MAVLink long range system. Equipped with

MATEKSYS mLRS 900MHz series are NOT compatible with ELRS 900MHz & Frsky R9 series using the SX127x. They will not bind with each other.

LoRa chip SX126x(e.g. mR900-30, E22) and STM32WLE5xx(e.g. mR900-22, WIO-E5, E77) are compatible with each other.

Experience unparalleled long-range connectivity with the Matek mR900-30 MAVLink long range system.

Equipped with MAVLink firmware and a 900 MHz LoRa band, the Matek mR900-30 receiver boasts 30 dBm RF power for optimal transmission strength. Stay connected with confidence and clarity.

Check out all our External Modules/Receivers Collection, and the rest of our Matek products!

 

Setup:

Use mR24-30 as a TX module : tx-matek-mr900-30-g431kb-default-xxx

 

Use mR24-30 as a TX in SiKTelem mode : tx-matek-mr900-30-g431kb-siktelem-xxx

Modes & Link Rate

Firmware Flashing:

Download STM32CubeProgrammer from ST website

mLRS firmware:

————————————————————————————————————

Make sure DFU driver has been installed. Check out “Install DFU Drivers” in this page

Connect the Receiver USB to computer while holding the boot button in.

  1. Select USB
  2. USB1 and click Refresh
  3. Connect
  4. select “Erasing & Programming”
  5. Tick all sectors and click “erase selected sectors”
  6. Browse firmware (hex or bin file) related to the hardware.
  7. Click “Start Programming”
  8. After programming, unplug USB and plug USB back in. If red LED blinks at 2Hz, the receiver is waiting for connecting with transmitter.

*** You can also flash it via INAV or BetaFlight configurator, load firmware local,  just like flashing a flight crontroller.


Com / CLI Commands:

  • Install serial_port_utility
  • Firmware tx-matek-mr900-30-g431kb-default,  USB = COM/CLI, connect USB directly to computer, install STM VCP driver,  select STM32 COM port
  • Firmware tx-matek-mr900-30-g431kb-siktelem, LT1/LR1 = COM/CLI,  connect USB-TTL module to LT1/LR1, select USB-TTL COM port
  • more CLI commands details. 

 


Specifications:

  • STM32G431KB,  mLRS firmware
  • LoRa SX1262 with TCXO
  • PA/LNA SE2435L
  • RF Frequency: 900MHz (868MHz, 915MHz FCC)
  • 915MHz RF power: 21dBm(min) / 22dBm / 24dBm / 27dBm / 30dBm(1000mW)
  • 868MHz RF power: 24dBm(min) / 24dBm / 24dBm / 27dBm / 30dBm(1000mW)
  • Antenna connector: IPEX MHF-1
  • TX1/RX1: Bi-directional Serial MAVLink
  • TX2: RC out(CRSF or SBUS)
  • one buttom for DFU mode and Bind
  • Power supply: 4.5-13V DC @ “V” Pad
  • Power dissipation:  340mA@5V IN(31Hz, 30dbm)
  • PCB Size: 29x21mm
  • Weight: 5.3g w/ antenna

 

LED Status

  • [Red flashing 2Hz], not connected to transmitter
  • [Green flashing 1Hz], connected to transmitter
  • [Red and Green alternately ], Binding mode enabled

Binding

Firmware

Tips

  • mLRS Github  & Documentation
  • mLRS Discord
  • mLRS Facebook group
  • If set RF power >=500mW, It is recommended to attach the heatsink to the bottom side of PCB. The gaps between fins can be used for mounting with M3 screws
  • MATEKSYS mLRS 900MHz series are NOT compatible with ELRS 900MHz & Frsky R9 series using the SX127x. They will not bind with each other.


Package Includes:

  • 1 x mR900-30
  • 1 x IPEX MHF1 dipole antenna. 8cm
  • 1 x Heatsink 20*20*6mm
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. 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
    SKU: 26363367354

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.4 ★★★★★
    Based on 15 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    N
    Verified Purchase
    Nuka Shroom Soup
    Charlottesville, US
    ★★★★★ 5
    Excellent value, flawless performance for well over a year and no signs of quitting.
    Color: Green/Black
    Excellent value, had this for well over a year and it still keeps perfect time, still water resistant. No worries about having to change batteries. Owned a fancy expensive (battery) watch once and the dept. store repair intentionally sabotaged the watch in the hopes I would purchase another from them. Yeah, good luck with that, lost my business forever. This is the 21st century, cell phones are the new time pieces, but solar is totally reliable and Timex makes it happen. Holds a charge for many months, although I prop it in a bright window for a few days every few months or so just to make sure the cells are always fully charged, although it's probably unnecessary, just being over cautious. I haven't actually experienced this watch ever running out of power even after months of use. Damn impressive, as it should be.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 12, 2025
    B
    Verified Purchase
    Bill
    Belleville, US
    ★★★★★ 4
    Good value for solar watch
    Color: Black/Orange
    Nice watch! It is plastic like but it is solar. No indiglo button only a little luminous on the hands so you don't want to wear it in tje dark and expect to check the time. 45mm case is good size for my wrist and the band works good also, Not too long not too short. Overall a good watch with no problems
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    B
    Verified Purchase
    Barry Vercueil
    Lexington, US
    ★★★★★ 5
    Amazing Solar for the price
    Color: Black/Orange, Color: Black/Orange
    Great watch. Very good visibility. Ligh and feels quality. Easy to swap straps. Same size as my Casio Duro. Highly recommend.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 30, 2026
    J
    Verified Purchase
    Jason G
    Whiting, US
    ★★★★★ 1
    Do not buy
    Color: Green/Black
    Do not buy. When I received the watch it did not work and the battery was dead. I bought a new battery and it killed that one as well after about a month.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 18, 2026
    M
    Verified Purchase
    Miles Connell
    Boise, US
    ★★★★★ 5
    Inexpensive doesn’t mean cheap.
    Color: Black/Orange
    After 10 months, zero complaints. Well, I got rid of the horrible NATO strap 🙄. That’s a personal preference. Easy to swap out to whatever you like. Keeps accurate time meaning it’s the same time. I’m not micro analyzing it and the seconds gained/lost. It has a confident look and feel and makes you feel good when wearing it. Sure it’s not high priced but it’s not cheap. Very comfortable, light and not unincumbered. If this is what you’re looking at, you’d be satisfied. Great looking, durable and simple watch. Full confidence.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 25, 2025

    recommand products