SpeedyBee SB-F4V3-50-STACK Raspberry Pi4 8GB Model B Ultimate Kit- Case Lead (8mm) is the linear

Lead (8mm) is the linear distance traveled per complete revolution

) Weight 10 grams Melting Point ~183-190 degreesC Finish Bright

MP780522 2 to 99999 RPM Non-Contact Laser Tachometer

and micro-work

The module automatically configures GPIO pins for IR transmit and receive functions as per the default pinout documentation

SpeedyBee SB-F4V3-50-STACK Raspberry Pi4 8GB Model B Ultimate Kit- Case Lead (8mm) is the linearSpeedyBee SB F4V3 50 STACK SpeedyBee SB F4V3 50 STACK You will get an STM32F405 FC (better than F411), onboard 4 level battery life indicator, 4GB Blackbox SD card slot for your flight logs, 4 groups of LED strip pads, complete with a DJI plug for your digital quad, and built in Bluetooth for wireless configuration on the SpeedyBee app. Don't forget about the powerful 50A 4 in 1 ESC, built with TVS protective diode + Japan made TDK SMT capacitors +