---
product_id: 352795238
title: "Happymodel 0.42g Tiny 2.4G ExpressLRS EP1 Nano Long Range Low Latency Receiver for Micro Carbon Fiber FPV Racing Quadcopter Quad Frame kit RC Drone Frame Rekon 3"
brand: "usmile"
price: "NT$1359"
currency: TWD
in_stock: true
reviews_count: 9
category: "Usmile"
url: https://www.desertcart.tw/products/352795238-happymodel-0-42g-tiny-2-4g-expresslrs-ep1-nano-long
store_origin: TW
region: Taiwan
---

# Low latency 500Hz refresh Ultra-long 2.4G range Featherlight 0.42g weight Happymodel 0.42g Tiny 2.4G ExpressLRS EP1 Nano Long Range Low Latency Receiver for Micro Carbon Fiber FPV Racing Quadcopter Quad Frame kit RC Drone Frame Rekon 3

**Brand:** usmile
**Price:** NT$1359
**Availability:** ✅ In Stock

## Summary

> 🚀 Tiny Tech, Massive Reach: Dominate the skies with the Happymodel EP1 Nano!

## Quick Answers

- **What is this?** Happymodel 0.42g Tiny 2.4G ExpressLRS EP1 Nano Long Range Low Latency Receiver for Micro Carbon Fiber FPV Racing Quadcopter Quad Frame kit RC Drone Frame Rekon 3 by usmile
- **How much does it cost?** NT$1359 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/352795238-happymodel-0-42g-tiny-2-4g-expresslrs-ep1-nano-long)

## Best For

- usmile enthusiasts

## Why This Product

- Trusted usmile brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Level Range:** Competes with top-tier systems like Crossfire, delivering reliable long-range control in a tiny package.
- • **Plug & Play Binding:** Simplified binding process with intuitive LED indicators and Lua script support for quick setup.
- • **Featherweight Champion:** At just 0.42g, this receiver keeps your micro quadcopter nimble and agile without compromise.
- • **Race-Ready Responsiveness:** Experience lightning-fast 500Hz refresh rates for ultra-smooth FPV racing and cruising.
- • **Seamless Firmware Updates:** Upgrade effortlessly via built-in WiFi hotspot—no cables, no hassle, just pure convenience.

## Overview

The Happymodel EP1 Nano is a cutting-edge 2.4GHz ExpressLRS receiver designed for micro FPV racing drones. Weighing only 0.42g, it features a powerful SX1280 RF module and ESP8285 MCU for WiFi-enabled firmware updates. With ultra-low latency and up to 500Hz refresh rate, it delivers pro-grade responsiveness and long-range performance rivaling premium systems like Crossfire, all in a compact 10x10x3mm form factor.

## Description

PP RX was designed by @Jye Smith of the ExpressLRS development team. Its main hardware architecture is STM32L432KBU6 MCU and SX1280 RF chip. It has a built-in ceramic antenna, which is ultra-light and small. Based on PP RX, we developed the ESP8285 version of Nano 2.4G rx, named EP1 and EP2. The RF module of EP1/EP2 is the same as PP RX, but it uses ESP8285 MCU. Therefore, you can upgrade the firmware via WIFI, which is very user-friendly. To flash the firmware, Power up the receiver while keeping the transmitter turned off. After a while, you can find the ExpressLRS hotspot. Connect to this hotspot using a PC or mobile phone. The password is expresslrs, then you can visit 10.0.0.1 to upload the firmware. Binding steps: 1. After the receiver is connected to the flight controller, power the FC through USB connection. Disconnect it as soon as the LED on the receiver turns off. Repeat the procedure one more time. when the USB is connected for the third time, the LED will start to flash double, which means that the receiver enters the bingding mode. 2. After the ES24TX module or other 2.4G ELRS module are properly installed on your transmitter, copy the ELRS.LUA file to the "SD Card/Scripts/tools" directory in the SD card of the radio, then run ELRS.LUA to continue Bind procedure . 3. After the binding is successful, the LED on the receiver will go steady. ESP8285 processor SX1280IMLTRT module 2.4G omnidirectional T antenna Maximum receiving refresh rate: 500Hz Minimum receiving refresh rate: 25Hz Working voltage: 5v Weight: 0.42g (without antenna) Size: 10mm*10mm*3mm Working protocol: CRSF (Betaflight) Peak gain: 2.23dB Packing: EP1_RX receiver x1 40MM antenna x1 90MM antenna x1

Review: Good little elrs receiver. - Small, compact and works well. Range is pretty good. Not expensive easy to program/ bind.
Review: Amazing receiver! - This receiver is super tiny and doesn’t add much weight to your drone at all. On top of that the range you get is absolutely crazy. Only thing that tops this is crossfire ofc. But it was super easy to bind and get flying really quick. Highly recommend 10/10

## Features

- Happymodel 2.4G ELRS Nano series receiver is based on ExpressLRS open source architecture and program, Based on PP RX, we developed the ESP8285 version of Nano 2.4G rx, named EP1 and EP2. The RF module of EP1/EP2 is the same as PP RX, but it uses ESP8285 MCU.
- To flash the firmware, Power up the receiver while keeping the transmitter turned off. After a while, you can find the ExpressLRS hotspot. Connect to it using a PC or mobile phone with password "expresslrs" before visiting 10.0.0.1 to upload the firmware
- Low latency and high refresh rate, they are very suitable for FPV racing and long range FPV cruising while being ultra-light and ultra-small, making them very suitable for Tinywhoop.
- With this tiny teeny receiver you can achieve great range even comparable to crossfire or Tracer, ghost. Don't just take my word for it, search Crossfire vs expresslrs on youtube and hear what Joshua Bardwell have to say.
- Weight: 0.42g (without antenna), Packing: EP1_RX receiver x1, 40MM antenna x1, 90MM antenna x1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095YJPXB8 |
| Best Sellers Rank | #101,147 in Toys & Games ( See Top 100 in Toys & Games ) #68 in RC Radio Receivers |
| Customer Reviews | 4.4 4.4 out of 5 stars (85) |
| Item Weight | 0.634 ounces |
| Item model number | EP1 |
| Manufacturer | Usmile |
| Manufacturer recommended age | 14 years and up |
| Package Dimensions | 5.59 x 3.07 x 0.28 inches |

## Images

![Happymodel 0.42g Tiny 2.4G ExpressLRS EP1 Nano Long Range Low Latency Receiver for Micro Carbon Fiber FPV Racing Quadcopter Quad Frame kit RC Drone Frame Rekon 3 - Image 1](https://m.media-amazon.com/images/I/41qsb3kAydS.jpg)

## Available Options

This product comes in different **Edition** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good little elrs receiver.
*by R***R on April 16, 2025*

Small, compact and works well. Range is pretty good. Not expensive easy to program/ bind.

### ⭐⭐⭐⭐⭐ Amazing receiver!
*by Z***N on May 5, 2024*

This receiver is super tiny and doesn’t add much weight to your drone at all. On top of that the range you get is absolutely crazy. Only thing that tops this is crossfire ofc. But it was super easy to bind and get flying really quick. Highly recommend 10/10

### ⭐⭐⭐⭐⭐ Great choice elrs receiver
*by W***N on October 12, 2024*

I have used the HappyModel Ep2 since shortly after it was released and have had no problems with it, but recently started using the Ep1 for my 2 1/2" and bigger quads since I fly them out a bit further. The Ep1 gives a much more solid link out farther. I highly recommend it.

## Frequently Bought Together

- Happymodel 0.42g Tiny 2.4G ExpressLRS EP1 Nano Long Range Low Latency Receiver for Micro Carbon Fiber FPV Racing Quadcopter Quad Frame kit RC Drone Frame Rekon 3
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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-18*