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Notes:
Since the Official Perfect version of ELRS firmware has not been released yet, currently our PP_RX, EP1/EP2 RX and ES24TX pre-loaded firmware are all beta versions, you can upgrade the official firmware when Official perfect target available.
More details: https://github.com/ExpressLRS/ExpressLRS
The Happymodel 2.4GHz ELRS nano series receiver is an open source program based on ExpressLRS, we have 3 types rx module released.
The PP RX is designed by @Jye Smith from ExpressLRS development team. Its main hardware architecture is STM32L432KBU6 MCU and SX1280 RF chip. It has a built-in ceramic antenna, which is super light and small in size.
On the basis of PP RX, we have developed the Nano 2.4GHz rx of ESP8285 version named EP1 and EP2. The RF module of EP1/EP2 is the same like PP RX and use ESP8285 MCU . So you can upgrade firmware by WIFI , that's too simple .
Due to the low-latency and high-refresh-rate RF module, they are very comfortable for FPV race and Long Range FPV. And very suitable for Tiny whoop because of the ultra light and Nano size.
|
|
PP(w/ antenna) |
EP1(w/o antenna) |
EP2(w/ antenna) |
|
MCU |
STM32L432KBU6 |
ESP8285 |
ESP8285 |
|
RF Chip |
SX1280IMLTRT |
SX1280IMLTRT |
SX1280IMLTRT |
|
Antenna |
SMD Ceramic |
Omnidirectional |
SMD Ceramic |
|
Dimension |
10mm*10mm*6mm |
10mm*10mm*3mm |
10mm*10mm*6mm |
|
Weight |
0.47g |
0.42g |
0.44g |
|
Firmware target |
6cb8152d |
aec8ad82 |
aec8ad82 |
|
Firmware upload |
Betaflight pass-through |
Wifi |
Wifi |
How to Setup ExpressLRS Happymodel 2.4GHz TX and RX？
Specifications:
PP_RX
Type: ISM
STM32L432KBU6 MCU
SX1280IMLTRT RF Module
SMD Ceramic antenna
Frequency Range: 2400 MHz to 2500 MHz
Maximum receive refresh rate: 500Hz
Minimum receiver refresh rate: 25Hz
Working voltage: 5v
Weight: 0.47gram
Dimension: 10mm*10mm*6mm
Peak gain: 3.7dB
EP1_RX
Type: ISM
ESP8285 MCU
SX1280IMLTRT RF Module
Omnidirectional antenna
Frequency Range: 2400 MHz to 2500 MHz
Maximum receive refresh rate: 500Hz
Minimum receiver refresh rate: 25Hz
Working voltage: 5v
Weight: 0.42gram(without antenna)
Dimension: 10mm*10mm*6mm
Peak gain: 2.23dB
Package include 1pcs 40mm and 1pcs 90mm Omnidirectional antenna
EP2_RX
Specifications:
Type: ISM
ESP8285 MCU
SX1280IMLTRT RF Module
SMD Ceramic antenna
Frequency Range: 2400 MHz to 2500 MHz
Maximum receive refresh rate: 500Hz
Minimum receiver refresh rate: 25Hz
Working voltage: 5v
Weight: 0.44gram
Dimension: 10mm*10mm*6mm
Peak gain: 3.7dB
Package Included:
1*PP_RX Or
1*EP1_RX(include 1pcs 40mm and 1pcs 90mm antenna）Or
1*EP2_RX Or
1*T-Antenna
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