HelloRadioSky HR8EG Receiver User Guide

September 27, 2024
HelloRadioSky

HR8EG Receiver

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Product Information

Overview

The HelloRadioSky HR8E ELRS receiver is a high-performance
receiver based on the revolutionary ExpressLRS system. It offers
high reliability, flexible configuration, fast response speed, and
ultra-long range capabilities, providing users with a brand new
experience for their hobby needs.

Specifications

  • Power Supply: DC 4.5 – 7.4V
  • Antenna Type: 18cm high sensitivity antenna
  • Wireless Protocol: ExpressLRS 3.3.0 pre-installed
  • Output Channel: 9CH PWM
  • Telemetry Power: Maximum 100mw (LUA Adjustable)
  • Battery Voltage Detection Range: DC 4.0 – 35V
  • Bus Interface: CRSF
  • Weight: 13.7 grams
  • Size: 482715mm

Product Usage Instructions

Binding Method

  1. Power on the receiver; the LED will turn on.

  2. Power off the receiver.

  3. Repeat Step 1 twice.

  4. Power on the receiver for the third time; the LED will double
    blink, indicating bind mode.

  5. Select [BIND] on the radio and confirm.

ELRS Lua Settings on the Radio

Standard Servos:

  • Packet Rate: 100Hz
  • Full Telem Ratio: Std (1:32) default if unsure
  • Switch Mode: 8ch

Performance Servos:

  • Packet Rate: 333Hz
  • Full Telem Ratio: Std (1:128)
  • Switch Mode: 8ch

Other Important Notices

The HR8E receiver is specially designed for fixed-wing users,
supporting up to 8 servos, built-in receiver voltage telemetry,
flight battery telemetry, and automatic voltage input detection. It
features a dual-antenna with telemetry power up to 100mw.

FAQ

Q: What is the default network name and password for the TX and

RX WiFi?

A: Default network name for both TX and RX WiFi is ExpressLRS,
and the default password is expresslrs.

Q: What is the default URL for accessing the device

settings?

A: The default URL for accessing device settings is
http://10.0.0.1/ which can be opened in a browser.

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HR8EG
Receiver Quick Start Guide
WWW.HELLORADIOSKY.COM

Introduction
Thank you for purchasing the HelloRadioSky HR8E ELRS receiver. The HR8E receiver is based on the revolutionary ExpressLRS system. It offers high performance, high reliability, flexible configuration, fast response speed and ultra-long range, bringing you brand new experience with your hobby. Please take a moment to read this quick start reference before using your new HR8E receiver.
Overview
BOOT LED
Telemetry UART
S + –
CH9 CRSF/S.BUS CH8 servo CH7 servo CH6 servo CH5 servo CH4 servo CH3 servo CH2 servo CH1 servo
Binding Method
Traditional Method: 1. Power on the receiver, its LED will turn on. Then power off the receiver.

2. Repeat Step one twice. 3. Power on the receiver for the third time, its LED will double blink. This indicates that the receiver is in bind mode. 4. Select [BIND] on the radio, then confirm.

Binding phrase: 1. Open the ExpressLRS LUA and navigate to the Wifi Connectivity page. Select the Enable Wifi option and connect to your radio’s Wifi with a mobile phone, tablet or PC (See TX Wifi notes below). Open the WebUI (ExpressLRS web page on http://10.0.0.1/) and input a unique bind phrase of yours. (Note: Bind phrases are not secret and can be read). Save and Reboot. 2. Power up the receiver and wait 60 seconds for the LED to blink rapidly to indicate Wifi mode. Connect your phone, tablet or PC to the receiver’s Wifi (See TX Wifi notes below). Open the WebUI (ExpressLRS web page on http://10.0.0.1/) and enter the matching bind phrase previously entered on your radio. (Note: Bind phrases are not secret and can be read). Save and Reboot. Once a radio and a receiver have the same bind phrase set, they will automatically bind.

TX Wifi notes: WiFi default network name: ExpressLRS TX WiFi default password: expresslrs Default URL: http://10.0.0.1/ (Open in browser)

RX Wifi notes: WiFi default network name: ExpressLRS RX WiFi default password: expresslrs Default URL: http://10.0.0.1/ (Open in browser)

ELRS Lua Settings on the Radio

Standard servos: Packet Rate100Hz Full Telem RatioStd (1:32)default if unsure Switch Mode8ch

Performance servos: Packet Rate333Hz Full Telem RatioStd (1:128) Switch Mode8ch

Other Important Notices

1. The maximum input voltage for the EXT-BAT (external voltage input) telemetry reading is 35V. Do not exceed 35V or the receiver will be damaged. 2. The EXT-BAT (external voltage input) of the ER8 is accessed via the EXT-BAT 2pin JST-GH connector. The red wire must be soldered to the positive of the battery or ESC. If no EXT-BAT power source is found, the HR8E will default to reading the voltage on the receiver pins, only one voltage input can be used at the any given time. 3. Please ensure that the power supply current of the ESC BEC matches the power consumption requirements of the servo used. If using high-voltage and high-torque servos, it is recommended to use a 2S 7.4V battery for direct power supply or a suitable high-current UBEC. 4. Calibration of the telemetry voltage will be required on your radio. Navigate to the telemetry page on your radio and locate the RxBt sensor. Edit the sensor settings and adjust the offset until the displayed reading matches the actual voltage of the battery in the model. If there is a large difference, adjustment of the ratio may also be required. *For best results, calibrate the voltage of your radio using a fully charged battery of the correct cell count intended for use in the model. 5. ExpressLRS Arming requirements and the use of Channel 5: CH5 is required by ExpressLRS to set the Arm state of the RF module in your radio. It is recommended to assign CH5 to a switch such as your throttle cut switch as this will provide benefits such as dynamic power. Using the ExpressLRS LUA or the Wifi WebUI, you can assign different channels to the CH5 output of your receiver. Please visit https://www.expresslrs.org/ to learn more on the importance of setting up arming.
Specifications
The HelloRadioSky HR8E receiver has been specially designed for fixed-wing users. It can drive up to 8 servos and has built-in receiver voltage telemetry and flight battery telemetry with the ability to automatically detect which voltage input to use. A 4-wire CRSF interface is provided to facilitate later expansion of telemetry sensors. The HR8E features a dual-antenna with telemetry power up to 100mw.
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful

interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: — Reorient or relocate the receiving antenna. — Increase the separation between the equipment and receiver. — Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. — Consult the dealer or an experienced radio/TV technician for help.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
Power supply: DC 4.5 – 7.4V Antenna type: 18cm high sensitivity antenna Wireless protocol: ExpressLRS 3.3.0 pre-installed Output channel: 9CH PWM Telemetry power: maximum 100mw (LUA Adjustable) Battery voltage detection range: DC 4.0 – 35V Bus interface: CRSF Weight: 13.7 grams Size: 482715mm
Firmware: Device Category: HelloRadioSky 2.4GHz Device: HelloRadioSky HR8E 2400 PWM RX

HelloRadioSky HR8E HR8E ExpressLRS

BOOT LED UART
S + –

1.LED 2. 2

CH9 CRSF/S.BUS CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

3.LED 2 4.BIND

Binding phrase: 1. ExpressLRS LUA WIFI WIFI ExpressLRS WIFI TX WIFI WebUI ExpressLRS http://10.0.0.1/ 2. 60 LED WIFI WIFI TX WIFI WebUI ExpressLRS http://10.0.0.1/

WIFI WIFI ExprersLRS TX WIFI expresslrs URLhttp://10.0.0.1/

WIFI WIFI ExprersLRS RX WIFI expresslrs URLhttp://10.0.0.1/

ELRS LUA
100Hz Full Std (1:32) 8ch

333Hz Full Std (1:128) 8ch

1. EXT-BAT 35V 35V 2. EXT-BAT EXT-BAT 2 JST-GH EXT-BAT HR8E 3. BEC 2S 7.4V UBEC

4. RxBt Offset Ratio 5. ExpressLRS CH5 / CH5 ExpressLRS LUA Wifi WebUI CH5 https://www.expresslrs.org/

HelloRadioSky HR8E 8 4 CRSF HR8E 100mw
DC 4.5 – 7.4V 18cm ExpressLRS 3.3.0 9CH PWM 100mw ( LUA ) DC 4.0 – 35V CRSF 13.7 482715mm
HelloRadioSky 2.4GHz HelloRadioSky HR8E 2400 PWM RX
WWW.HELLORADIOSKY.COM

References

Read User Manual Online (PDF format)

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Download This Manual (PDF format)

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