{"product_id":"radiomaster-ers-rb01-brushless-tachometer-for-compatible-expresslrs-pwm-receivers","title":"RadioMaster ERS-RB01 – Brushless Tachometer for Compatible ExpressLRS PWM Receivers","description":"\u003cp\u003eThe ERS-RB01 Brushless Tachometer measures RPM by tapping directly into any two wires of a brushless ESC output. The sensor captures precise speed data, sends it to a compatible ExpressLRS receiver via the CRSF interface, and relays the information back to your EdgeTX radio for real-time monitoring. Ideal for any application requiring accurate RPM feedback.\u003c\/p\u003e\n\u003cp\u003eAs part of the ERS sensor family, the ERS-RB01 also supports pass-through expansion, allowing easy daisy-chaining with additional telemetry modules.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate RPM Monitoring: Captures real-time brushless speed with high precision.\u003c\/li\u003e\n\u003cli\u003eExpressLRS Integration: Sends RPM data directly to compatible ExpressLRS receivers via the CRSF interface.\u003c\/li\u003e\n\u003cli\u003eMulti-Unit Support: Connect multiple ERS-RB01 sensors to monitor several units simultaneously.\u003c\/li\u003e\n\u003cli\u003eVersatile Applications: Ideal for any application requiring accurate RPM feedback.\u003c\/li\u003e\n\u003cli\u003eCompact \u0026amp; Lightweight: Easy to install without adding significant weight.\u003c\/li\u003e\n\u003cli\u003ePlug-and-Play: Quick setup with minimal wiring for fast deployment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlug and Play Compatible Receivers:\u003c\/p\u003e\n\u003cp\u003eER6 2.4GHz ExpressLRSPWM Receiver\u003c\/p\u003e\n\u003cp\u003eER8 2.4GHz ExpressLRSPWM Receiver\u003c\/p\u003e\n\u003cp\u003eER8G \u0026amp; ER8GV ExpresersLRS PWM Receiver\u003c\/p\u003e\n\u003cp\u003eUsing Sensors with Non-Plug-and-Play PWM ExpressLRS Receivers:\u003c\/p\u003e\n\u003cp\u003eMost PWM ExpressLRS receivers are fully compatible; those without a dedicated UART port require reconfiguration to support external sensors (e.g., for telemetry). To enable this, reassign two PWM output pins as a serial UART—one for TX and one for RX—via the receiver’s Web UI (accessed by putting the receiver into WiFi mode) or via the ExpressLRS LUA script. This enables sensor connectivity while preserving the remaining PWM channels for servos or ESCs.\u003c\/p\u003e\n\u003cp\u003eFor receivers that only provide standard servo pins, an optional adapter cable is available that converts the sensor’s UART connector to two standard servo plugs (TX and RX). Available HERE .\u003c\/p\u003e\n\u003cp\u003eSensor Configuration \u0026amp; Telemetry Logging\u003c\/p\u003e\n\u003cp\u003eo configure this sensor and view telemetry on your EdgeTX radio, install the RadioMaster Sensor Configurator LUA. The LUA allows adjustment of sensor settings, enables proper telemetry display, and supports data logging for post-flight review.\u003c\/p\u003e\n\u003cp\u003eAfter downloading, connect your radio to a Mac or PC in USB-SD mode.\u003c\/p\u003e\n\u003cp\u003eCopy the LUA files to: \/SCRIPTS\/TOOLS\/\u003c\/p\u003e\n\u003cp\u003e👉 Download the RadioMaster ERS Sensors Configurator.lua\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eItem：ERS-RB01 RPM-BLDC Sensor\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 5–8.4V\u003c\/li\u003e\n\u003cli\u003eOperating current: 10mA\u003c\/li\u003e\n\u003cli\u003eMeasurement method: Contact type\u003c\/li\u003e\n\u003cli\u003eSupport: Brushless\u003c\/li\u003e\n\u003cli\u003eMotor pole pairs: LUA configurable\u003c\/li\u003e\n\u003cli\u003eRange: 200–300, 000RPM\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.1%\u003c\/li\u003e\n\u003cli\u003eTemperature range: –10 ℃ to +85 ℃\u003c\/li\u003e\n\u003cli\u003eSize: 28 × 12 × 8mm\u003c\/li\u003e\n\u003cli\u003eWeight: 4.8g\u003c\/li\u003e\n\u003cli\u003e1 * ERS-RB01 RPM-BLDC Sensor\u003c\/li\u003e\n\u003cli\u003e3 * Heat-Shrinkable Tube\u003c\/li\u003e\n\u003cli\u003e1 * Manual QR Code Card\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RadioMaster","offers":[{"title":"Default Title","offer_id":58941241295180,"sku":"RX-BR0157.ERS-RB01","price":16.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/9952\/5196\/files\/ELRS-RPM-Sensor.jpg?v=1790286656","url":"https:\/\/dronepart.co.uk\/products\/radiomaster-ers-rb01-brushless-tachometer-for-compatible-expresslrs-pwm-receivers","provider":"My Store","version":"1.0","type":"link"}