Waveshare 40kg.cm Metal Serial Bus Servo, High Precision And Large Torque, With Programmable 360 Degrees Magnetic Encoder and Brushless Motor ALUMINUM HEATSINK FOR RASPBERRY PI ZERO 2W Compatibility Arduino UNO R3 (and

Waveshare 40kg.cm Metal Serial Bus Servo, High Precision And Large Torque, With Programmable 360 Degrees Magnetic Encoder and Brushless Motor ALUMINUM HEATSINK FOR RASPBERRY PI ZERO 2W Compatibility Arduino UNO R3 (and Compatibility Arduino UNO R3 (and compatible boards) Digital I O Headers D0 D13 broken out to 3 pin servo style headers (Signal VCC GND) Analog Input Headers A0 A5 broken out to 3 pin headers (Signal VCC GND) Communication Interfaces UART (RX TX) Biometric Door Lock System: Pair the R307 with an Arduino or ESP32 and a solenoid electric strike to build a fingerprint activated smart lock for home or office security