ELRS-dat
Info - ELRS-frequency-dat - ELRS-faq-dat
ELRS-link
ELRS-remote-console-tx
- BETAFPV literadio 3
BETAFPV literadio 2
ELRS-RX-dat - SX1276-dat - ESP8285-dat - ESP32-dat - SX1281-dat - SX1208-dat
protocol output - - CRSF-dat
resources
https://github.com/ExpressLRS/ExpressLRS
https://www.expresslrs.org/quick-start/getting-started/
ExpressLRS-Configurator-releases
ExpressLRS (ELRS) 2.4GHz Standard Explained
ExpressLRS (ELRS) 2.4GHz is an open-source long-range, low-latency radio control link developed for FPV drones and RC applications. It offers high performance, ultra-fast response times, and robust signal reliability compared to traditional RC protocols like FrSky, Crossfire, and Ghost.
🔹 Key Features of ELRS 2.4GHz
-
Ultra-Low Latency (~5ms in high-speed mode).
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Long-Range Performance (Up to 30km+ with proper setup).
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High Packet Rate (Up to 1000Hz) for smooth & responsive controls.
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Open-Source & Customizable (Community-driven development).
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Affordable Hardware (Compared to Crossfire or Ghost).
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Wide Compatibility (Supported on many radio transmitters & receivers).
🔹 ELRS 2.4GHz vs. Other RC Links
| Feature | ELRS 2.4GHz | TBS Crossfire | Ghost 2.4GHz | FrSky R9M |
|---|---|---|---|---|
| Frequency | 2.4GHz | 900MHz | 2.4GHz | 900MHz |
| Max Range | ~30km+ | ~50km+ | ~15km | ~10-20km |
| Latency | 5-7ms | 15-50ms | ~4ms | ~20ms |
| Packet Rate | Up to 1000Hz | 50-150Hz | 500Hz | ~100Hz |
| Open Source | ✅ Yes | ❌ No | ❌ No | ❌ No |
| Cost | 💰 Affordable | 💰💰 Expensive | 💰💰 Expensive | 💰 Mid-Range |
🔹 ELRS 2.4GHz Modes & Performance
| Mode | Packet Rate | Latency | Range |
|---|---|---|---|
| 500Hz | 500Hz | ~5ms | Short (~3km) |
| 250Hz | 250Hz | ~7ms | Mid (~10km) |
| 150Hz | 150Hz | ~10ms | Long (~20km) |
| 50Hz | 50Hz | ~20ms | Extreme Long (~30km+) |
🔹 Higher packet rate = Lower latency, but reduced range
🔹 Lower packet rate = Higher range, but increased latency
🔹 Recommended ExpressLRS 2.4GHz Hardware
🛠️ Transmitters (TX)
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RadioMaster Zorro ELRS 2.4GHz
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Jumper T20S (Built-in ELRS)
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Happymodel ES24TX Pro (External ELRS Module)
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BetaFPV ELRS Micro TX Module
📡 Receivers (RX)
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Happymodel EP2 (Tiny, best for micro quads)
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BetaFPV ELRS 2.4GHz Nano RX
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Radiomaster RP1 / RP2 RX (Great range & reliability)
🔹 Why Choose ELRS 2.4GHz?
✅ Best for FPV Racing & Freestyle → Low latency & fast response
✅ Perfect for Long-Range FPV → Good range at lower packet rates
✅ Affordable & Open-Source → Cheaper than Crossfire & Ghost
🚀 If you need ultra-low latency for FPV racing or long-range performance at an affordable price, ExpressLRS 2.4GHz is the best choice! 🔥
2.4hz compare to LORA 915mhz
| Feature | DJI NC3 (OcuSync 2.0) | ELRS 2.4GHz (100mW) | ELRS 915MHz (100mW, SX1276) |
|---|---|---|---|
| Protocol Type | Proprietary digital (DJI) | Open-source LoRa/FLRC | Open-source LoRa |
| Frequency Band | 2.4GHz + 5.8GHz | 2.4GHz | 915MHz |
| Max Packet Rate | N/A (digital control/video) | Up to 500Hz | Up to 50Hz |
| Latency (best-case) | ~120 ms (control + video) | ~2.5 ms (500Hz) | ~20 ms (50Hz) |
| Typical Latency | ~120–150 ms | ~6–13 ms | ~22–30 ms |
| Max Range (LOS, FCC) | ~10 km | ~2 km | ~10 km |
| Penetration (Obstacles) | Moderate | Moderate | Strong |
| Interference Resistance | High (hopping + digital) | Moderate | Strong |
| Video Support | Yes (integrated) | No | No |
| Use Case | DJI drones (Mini, Air) | FPV racing, freestyle | Long-range FPV, endurance |
| Antenna Size | Small | Small | Larger |
| Custom Flight Controllers | Not supported | Fully supported | Fully supported |
❌ No — ELRS does not support 5.8GHz (as of now).
WebUI
Via "ExpressLRS RX" Access Point
Load the Web UI on your browser using these addresses:
http://10.0.0.1/ - If you have connected to the ExpressLRS RX Access Point
Via button press
