How do I configure the LUA script?

Copy the ELRS.lua script to the SD card Scripts/Tools folder and run it via the OpenTX menu.

What main control IC does it use?

It uses the ESP32+SX1278 main control IC with an ESP8285 backpack chip.

Elrs 500MHz Rx Receiver Module Anti-Interference Suitable for Fpv RC Camera Drone

Name: Elrs 500MHz Rx Receiver Module Anti-Interference Suitable for Fpv RC Camera Drone
Brand: Shenzhen Xingkai Technology Co., Ltd
SKU: 2175168355

Guangdong, ChinaShenzhen Xingkai Technology Co., Ltd

US$18.57

1 Piece

Sample price:US$18.57/piece.Request sample

Product profile

Customization

Available

Frequency Band

500MHz

Output Power

100MW

Model NO.

ELRS 500MHz RX

Refresh Rate

25Hz

Input Voltage

5-12V(2s)

Transport Package

Carton

Specification

6*5*5

Trademark

Xingkaitech

Origin

China

Production Capacity

50000piece/Year

Key features

Long Range Connectivity: Stable signal reaching 360-560 meters depending on frequency band.

Low Latency & High Refresh: Features 25Hz to 200Hz refresh rates for responsive control.

Customizable Power Output: Adjustable power from 100mW to 2000mW via LUA script.

Open Source ExpressLRS: Based on open-source ExpressLRS for flexible configuration.

ESP32+SX1278 Chipset: Robust main control IC with ESP8285 backpack chip.

CRSF Protocol Support: Compatible with Crossfire Serial Data Protocol for OpenTX.

Multi-Frequency Options: Available in 433MHz with 360-560MHz optional range.

Compact & Lightweight: Ideal for drones and FPV systems due to small size.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Exhibition Experience

Shenzhen Xingkai Technology Co., Ltd

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2016-05-20Nearest Port: Shenzhen, HKAverage Response Time: ≤6.17hTerms of Payment: T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryThe supplier is identified as a Shenzhen-based manufacturing factory in the manufacturing industry. It demonstrates broad customization, R&D, 3D design, SDK, ODM, and OEM capabilities, with new products reported in the past year. Quality assurance is stated, and finished-product inspection instructions are uniformly followed. However, several service-control procedures lack written records, there is no approved supplier list, and no valid manufacturing-capacity contract with associated subcontractors. The supplier has inventory capability and reported lead times within 15 workdays in both peak and off-season periods, but lacks overseas warehouses, showrooms, agents, or branches. Financial information is represented by year labels only, without sufficient evidence to assess financial credibility. No certification holdings or specific customer cases are provided.

Supplier typeThe supplier is classified as a combined company and a factory located in Bao’an District, Shenzhen, with associated companies in the manufacturing industry. This directly supports its identity as a manufacturing-oriented supplier rather than a purely trading entity.

R&D capabilityThe supplier reports professional technical R&D capability, available SDK support, new products within the past year, and ODM services. These stated capabilities provide explicit evidence of active product-development and technical-support capacity.

Production capacityThe supplier is a manufacturing factory, reports standardized and uniformly followed finished-product inspection instructions, has in-stock capability, and states lead times within 15 workdays in both peak and off-season periods. However, it has no valid contract with associated subcontractors, leaving subcontracted manufacturing governance as a documented weakness.

Customization capabilityThe supplier offers customization from samples and designs, full, minor, and flexible customization, as well as 3D software design, ODM, and OEM services. The consistency of these capabilities across the slices provides explicit evidence of broad customization support.

Product Q&A

Q:What is the maximum transmission distance?

The signal can reach up to 360-560 meters, depending on the selected frequency band.

Q:Can I adjust the output power?

Yes, you can adjust power from 100mW to 2000mW using the LUA script on OpenTX.

Q:What refresh rates are supported?

The module supports refresh rates of 25Hz, 50Hz, 100Hz, and 200Hz.

Q:Which remote control protocols are compatible?

It supports the Crossfire Serial Data Protocol (CRSF) and works with OpenTX systems.

Q:What is the input voltage requirement?

The input voltage range is 5-12V (2S).

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Elrs 500MHz Rx Receiver Module Anti-Interference Suitable for Fpv RC Camera Drone