Tech-dat/MCU-dat/mcu-dat.md
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@@ -58,4 +58,9 @@ SAMD21
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- S32K144
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- FS32K144HAT0MLHR == 10+: ￥29.48
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-- FS32K144HAT0MLHR == 10 usd
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+- FS32K144HAT0MLHR == 10 usd
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+
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+
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+## ref
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+
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+- [[MCU]]
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Tech-dat/Network-dat/RF-dat/5.8Ghz-dat/5.8Ghz-dat.md
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+
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+# 5.8Ghz-dat
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+
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+What is 5.8GHz commonly used for?
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+
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+- FPV analog video (VTX) 🖥️
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+- Digital video (e.g. DJI FPV Air Unit, HDZero)
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+- Wi-Fi (802.11ac/n)
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Tech-dat/Network-dat/RF-dat/RF-2.4Ghz-dat/RF-2.4Ghz-dat.md
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+
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+# RF-2.4Ghz-dat
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+
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+- [[NRF52832-dat]] - [[NRF52840-dat]]
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+
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+- [[MCU-dat]]
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+
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+## ref
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+
Tech-dat/Network-dat/RF-dat/RF-LINK-dat/RF-LINK-dat.md
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# RF-LINK-dat
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-- more info please find at legacy wiki page - https://w.electrodragon.com/w/Category:RF-Link
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+- [more info please find at legacy wiki page](https://w.electrodragon.com/w/Category:RF-Link)
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app-dat/quadcopter-dat/FPV-dat/FPV-controller-dat/ELRS-dat/ELRS-RX-dat/2025-04-25-16-52-56.png
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app-dat/quadcopter-dat/FPV-dat/FPV-controller-dat/ELRS-dat/ELRS-RX-dat/2025-04-25-16-55-05.png
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app-dat/quadcopter-dat/FPV-dat/FPV-controller-dat/ELRS-dat/ELRS-RX-dat/ELRS-RX-dat.md
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+
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+# ELRS-RX-dat
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+
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+
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+## T-anntena version
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+
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+![](2025-04-25-16-52-56.png)
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+
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+## SMD antenna version
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+
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+## info
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+
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+Nano2400-RX receiver with power amplifier (PA+LNA).
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+
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+Therefore, it has 100mW telemetry output and better sensitivity at longer distances.
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+
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+It uses an IPEX1 antenna connector.
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+
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+Paired with an external dipole T-antenna (customized by a professional factory, each antenna is tested with professional instruments to ensure quality, lightness, and durability).
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+
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+The CYCLONE series receivers are based on the open-source architecture and program of ExpressLRS.
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+
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+We have released 3 types of RX receiver modules. All use the [[ESP8285-dat]] [[MCU-dat]]. You can upgrade the firmware via [[WIFI-dat]], which is very user-friendly.
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+
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+Typically, after powering the receiver and with the remote controller turned off, the ExpressLRS hotspot can be found after a default of 60 seconds. Connect to this hotspot using a computer or mobile phone.
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+
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+The password is "expresslrs", and then you can access 10.0.0.1 to upload the receiver firmware.
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+
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+## Product Features
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+
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+- High refresh rate 100mW telemetry output;
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+- Supports convenient and fast firmware flashing via WIFI connection;
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+- Firmware Version: 3.3.0 [BETAFPVLite2400RX]
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+- Equipped with a power amplifier (PA+LNA), providing 100mW telemetry output and better response speed;
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+- Theoretically compatible with most ELRS 2.4G transmitter modules on the market (requires firmware version 2.0 or above).
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+
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+![](2025-04-25-16-55-05.png)
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app-dat/quadcopter-dat/FPV-dat/FPV-controller-dat/ELRS-dat/ELRS-dat.md
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# ELRS-dat
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+Info - [[ELRS-frequency-dat]]
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+
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+
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+## ELRS-link
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+
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+ELRS-remote-console-tx
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+
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+- BETAFPV literadio 3
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+- BETAFPV literadio 2
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+
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+- [[edge-tx-dat]]
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+
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+- [[ELRS-RX-dat]] - [[CRSF-dat]] - [[SX1276-dat]] - [[ESP8285-dat]] - [[ESP32-dat]] - [[SX1281-dat]] - [[SX1208-dat]]
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+
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+https://github.com/ExpressLRS/ExpressLRS
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+
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+https://www.expresslrs.org/quick-start/getting-started/
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+
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+
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+
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## **ExpressLRS (ELRS) 2.4GHz Standard Explained**
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**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.
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🚀 **If you need ultra-low latency for FPV racing or long-range performance at an affordable price, ExpressLRS 2.4GHz is the best choice!** 🔥
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+## 2.4hz compare to LORA 915mhz
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+
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+| Feature | DJI NC3 (OcuSync 2.0) | ELRS 2.4GHz (100mW) | ELRS 915MHz (100mW, SX1276) |
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+|----------------------------|---------------------------|------------------------------|-------------------------------|
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+| Protocol Type | Proprietary digital (DJI) | Open-source LoRa/FLRC | Open-source LoRa |
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+| Frequency Band | 2.4GHz + 5.8GHz | 2.4GHz | 915MHz |
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+| Max Packet Rate | N/A (digital control/video)| Up to 500Hz | Up to 50Hz |
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+| Latency (best-case) | ~120 ms (control + video) | ~2.5 ms (500Hz) | ~20 ms (50Hz) |
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+| Typical Latency | ~120–150 ms | ~6–13 ms | ~22–30 ms |
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+| Max Range (LOS, FCC) | ~10 km | ~2 km | ~10 km |
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+| Penetration (Obstacles) | Moderate | Moderate | Strong |
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+| Interference Resistance | High (hopping + digital) | Moderate | Strong |
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+| Video Support | Yes (integrated) | No | No |
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+| Use Case | DJI drones (Mini, Air) | FPV racing, freestyle | Long-range FPV, endurance |
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+| Antenna Size | Small | Small | Larger |
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+| Custom Flight Controllers | Not supported | Fully supported | Fully supported |
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+
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+
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+❌ No — ELRS does not support 5.8GHz (as of now).
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+
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+- [[LORA-dat]] - [[RF-2.4ghz-dat]]
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+
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+- [[5.8Ghz-dat]]
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+
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+
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+
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+
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## ref
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-- [[FPV-dat]]
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+- [[FPV-dat]]
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+
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+- [[ELRS]]
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app-dat/quadcopter-dat/FPV-dat/FPV-controller-dat/ELRS-dat/ELRS-frequency-dat.md
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+# ELRS-frequency-dat.md
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+
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+| Feature | ELRS 915MHz (LoRa) | ELRS 2.4GHz (LoRa/FLRC) |
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+|---------------------|-----------------------------|------------------------------|
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+| Frequency Band | 915 MHz | 2.4 GHz |
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+| Range (LOS, 100mW) | ✅ 5–10+ km | ⚠️ 1–2 km |
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+| Penetration | ✅ Strong (trees, buildings) | ⚠️ Moderate |
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+| Latency | ❌ ~20–30 ms | ✅ ~2.5–13 ms |
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+| Max Packet Rate | ❌ ~50Hz | ✅ Up to 500Hz |
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+| Antenna Size | ❌ Large | ✅ Small |
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+| Interference Avoidance | ✅ Less crowded band | ⚠️ More Wi-Fi/Bluetooth noise |
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+| Use Case | Long-range, endurance | Freestyle, racing |
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+| Power Efficiency | ✅ High (lower data rate) | ✅ High (LoRa + FLRC modes) |
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+| Hardware Support | Older SX1276 modules | Newer SX1280 + ESP modules |
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+
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+
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+## ref
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+
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+- [[ELRS-dat]]
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app-dat/quadcopter-dat/FPV-dat/FPV-controller-dat/ELRS-dat/edge-tx-dat/edge-tx-dat.md
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+
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+# edge-tx-dat
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+
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+https://github.com/EdgeTX/edgetx
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app-dat/quadcopter-dat/FPV-dat/FPV-dat.md
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- [[FPV-controller-dat]] - [[Goggles-dat]]
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+- [[ELRS-dat]]
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## parts of the FPV drones
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