Happymodel CrazyF411 ELRS AIO 4in1 Flight controller built-in UART 2.4G ELRS and 20A ESC for Toothpick
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We started tracking this price on 25 Oct 2026. The chart fills in as prices change, so you can see whether today’s price is a good one.
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About this product
The CrazyF411 ELRS flight controller comes with integrated UART 2.4GHz ExpressLRS receiver and 20A Blheli_s ESC(Bluejay firmware pre-installed) which could support 2-4s. Bigger Mosfet could support high to 20A currents would be better for 2-4S toothpick drone or long range FPV drone. And because the 2.4GHz ExpressLRS receiver is equipped with the SX1280 radio frequency chip with high sensitivity, high packet rate and low latency, this flight controller is the one that all Race/Freestyle pilots needed. The built-in ELRS receiver is UART communication with MCU, it’s the same like Happymodel EP1 which you can update firmware by betaflight pass-through or WIFI, very simple. The default firmware is ELRS V3.0.1. This flight controller would be used for Crux35 to instead ELRS X1 flight controller. Specifications: Flight controller MCU:STM32F411CEU6 (100MHZ, 512K FLASH)Sensor: ICM42688P or BMI27…
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