RadioMaster ER4 ELRS 2.4GHz PWM Receiver - 4 Channel for RC Models

Introduction

The RadioMaster ER4 ELRS 2.4GHz PWM Receiver is a cutting-edge solution for model enthusiasts seeking high performance and reliability in a compact form factor. Designed to control up to 4 servos simultaneously, this receiver is ideal for a wide range of applications including small aircraft, boats, cars, and any model requiring a lightweight, full-range receiver. Its integration with the revolutionary ExpressLRS system ensures fast response times and excellent signal integrity.

Key advantages

• Based on the advanced ExpressLRS system for superior performance.
• Supports 4 channels of PWM output for versatile servo control.
• Extremely small and lightweight design, weighing only 3.0 grams.
• Offers full range connectivity for reliable control over distances.
• Features automatic telemetry for external battery voltage or receiver voltage.
• Supports Wi-Fi updates and WEBUI configuration for easy management.
• Optimized PCB design and high-quality 2.54mm connectors.
• Includes a 15cm high-sensitivity antenna for optimal signal reception.

Technical specifications

• Model: ER4 2.4 GHz ELRS PWM Receiver
• Power Supply: DC 4.5 - 8.4V
• Antenna Type: 15cm high-sensitivity antenna
• Wireless Protocol: ExpressLRS 3.3.0 pre-installed
• Output Channel: 4CH PWM
• Telemetry Power: 10mw
• Battery Voltage Detection Range: DC 4.0 - 35V
• Weight: 3.0 grams
• Dimensions: 30x15x5mm
• Firmware: Device Category: RadioMaster 2.4Ghz / Device: RadioMaster ER4 2400 PWM RX

Applications

This receiver is perfectly suited for various RC hobbyist applications, including FPV drones (especially smaller builds), RC airplanes, RC boats, RC cars, and other custom model projects where space and weight are critical factors. Its robust ExpressLRS protocol makes it a great choice for pilots looking for reliable control and extended range.

Compatibility

The RadioMaster ER4 receiver operates with a power supply range of DC 4.5 - 8.4V. It features standard 4-channel PWM outputs, compatible with most standard RC servos and flight controllers that support PWM input. The integrated ExpressLRS 3.3.0 firmware ensures compatibility with ELRS-compatible transmitters.

FAQ

What is the RadioMaster ER4 ELRS 2.4GHz PWM Receiver?

The RadioMaster ER4 is a compact, 4-channel PWM receiver utilizing the ExpressLRS 2.4GHz protocol. It's designed for small RC models like planes, boats, and cars, offering full range and high reliability in a lightweight package.

What are the key advantages of the RadioMaster ER4 receiver?

Key advantages include its ultra-lightweight design (3.0g), support for 4 PWM channels, integration with the high-performance ExpressLRS system, automatic voltage telemetry, and convenient Wi-Fi updates via WEBUI.

What is the operating voltage for the RadioMaster ER4 receiver?

The RadioMaster ER4 receiver operates on a DC power supply ranging from 4.5 to 8.4 volts, making it compatible with most standard RC battery setups.

Can I update the firmware on the RadioMaster ER4 receiver?

Yes, the RadioMaster ER4 receiver supports firmware updates via Wi-Fi, allowing you to configure it using the WEBUI. This ensures you always have the latest features and performance enhancements.

Where can I buy the RadioMaster ER4 ELRS 2.4GHz PWM Receiver with fast delivery?

You can buy the RadioMaster ER4 ELRS 2.4GHz PWM Receiver at HTDRONE. We offer fast shipping within Poland and reliable delivery to Ukraine via Nova Poshta, as well as worldwide shipping via DHL.