{"product_id":"holybro-blheli-s-esc-20a-2-4s-speed-controller-for-qav250","title":"Holybro BLHeli S ESC 20A 2-4S Speed Controller for QAV250","description":"\u003cp\u003eA BLHeli S 20A ESC designed for use with Holybro’s 2207 KV1950 V2 Motor \/ QAV250 Quadcopter .\u003c\/p\u003e\n\u003cp\u003eIt comes pre-soldered with power wires and 2mm bullet connectors attacehd for a quick and easy installation.\u003c\/p\u003e\n\u003cp\u003eMain features\u003c\/p\u003e\n\u003cp\u003e● EFM8BB21F16G MCU, pipelined 8-bit C8051 core with 50 MHz maximum operating frequency. ● Dedicated high frequency driver, makes the start more smooth. ESC maximum speed is 500k eRPM. ● BLHeli-S firmware is designed for superior performance in multirotors, and uses hardware generated motor pwm for smooth throttle response and silent operation. ● Damped light does regenerative braking, causing very fast motor retardation, and inherently also does active freewheeling. ● Supports higher KV motor and more power load. ● The code supports regular 1-2ms pulse width PWM input, as well as Oneshot and Multshot . The input signal is automatically detected by the ESC upon power up. ● Supports Dshot150, Dshot300 and Dshot600. Dshot is digital signal, anti-interference ability is stronger and do not need throttle calibration. ● The silicone twisted-pair of the throttle signal cable reduces the crosstalk caused by signal transmission and makes flight more stable.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCon. Current: 20A\u003c\/li\u003e\n\u003cli\u003eBurst Current(10S): 30A\u003c\/li\u003e\n\u003cli\u003eBEC: NO\u003c\/li\u003e\n\u003cli\u003eLiPo cells: 2-4S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Holybro","offers":[{"title":"Default Title","offer_id":58941061267788,"sku":"ESC-HB-20A520041","price":14.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/9952\/5196\/files\/QAV250-520041.jpg?v=1790285979","url":"https:\/\/dronepart.co.uk\/products\/holybro-blheli-s-esc-20a-2-4s-speed-controller-for-qav250","provider":"My Store","version":"1.0","type":"link"}