Note: DC + 3.3V is used in R558S power supply design.Power input is not allowed until the R558S is connected.If the cable is plugged or unplugged (with hot plug), the electronic components of the R558S will be . make sure that the power is cut off during cable plugging.Poor power connection, too short interval power off and on operation, or too large voltage drop pulse may cause the R558S not to be in a stable and normal working state, so it is necessary to keep the power input stable.After turning off the power input, it is necessary to turn on the power input again at an interval of more than 2 seconds.Parameter:Image pixels: 112*88Resolution (dpi): 508Sensor wear resistance: Greater than 200,000 timesStorage capacity: 100 fingerprintsMatching method: 1:1, 1:NWhether there is self-learning: YesWhether there are lights: colorful lightsFingerprint image collection time: Less than 180msAlgorithm search time: Less than 100ms(50)Overall recognition time: Less than 0.6s (50 pieces)Startup time: Less than 50msFalse recognition rate (FAR): Less than 0.001%True rejection rate (FRR): Less than 1%Communication interface: UART (3.3V)Communication baud rate (UART): 57600 (default)Supply voltage: 3.3±0.3(V)Maximum current: Less than 40(mA)/VDDShutdown current: Less than 12(uA)/ VADDOperating temperature: -30°C to 70°CStorage temperature: -40°C to 85°CRelative humidity: 20% to 85% (non-condensing)Antistatic capability (ESD): contact discharge ±8KV, non-contact discharge ±15KVWorking vibration: 10-150HZ, 0.5G, 3 axial directions, 1min/oct, 1 time/axial directionDrop: can withstand a 1.2-meter drop to the concrete floorIP rating: Front waterproof IP54Colour:Photo ColorMaterial:plasticPackage Contents:1 x Fingerprint Module1 x cableOnly the abo