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

Specifications:
Item Name: EP2 Nano
Receiver 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: 0.44g
Dimension: 10mm*10mm*6mm
Peak gain: 3.7dB
Range: 2KM above (Open Area) Open area means the receiving range refers to the test data without obstruction, using fixed-wing flying altitude greater than 150 meters, and transmitter power above 100mw.

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.

Package Included:
1 x EP2 Nano Receiver