Happymodel EP2 RX 2,4 GHz RX ExpressLRS Nano Langstreckenempfänger Open Source
17,96 €
PP RX's 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. So you can upgrade firmware by WIFI, that's too simple.
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