R305 Fingerprint Sensor and K212 Reader Card

It is a security set consisting of R305 Fingerprint reader sensor and K212 control card. The sensor can be directly attached to the card and used. You can also use the sensor externally with Arudino

K212 Connections:

P1: Power supply, Input voltage: DC8 - 30V, Input current: 0.3A
P2: Relay output
P3: Active signal of open door, DC12V voltage (Input)
P4: Fingerprint module (Input) )
P5: Micro Motor (Output)
P6: Door opening button, closing signal (Input) button
Adjustable resistor: Adjusting the closing time for the relay< /LI>
Switch: Setting the operating time for the relay;
Position 1: Setting the relay closing time from 2 to 9 seconds, setting with adjustable resistor;
Position 2: Setting of the relay 0.5 sec for closing time

Technical Specifications:

Power supply: DC8 - 30V,
Fingerprint capacity: 200
Interface output of the motor: ± DC5V, 300mA
Interface output of the relay: 3A

Operating Instructions:

1. The system is in working state, the indicator light (LED) is flashing slowly.

2. Press the SET button, the system is in the recording state and the indicator light flashes quickly.

3. Fingerprint can be registered continuously when the system is in registration state; If you don't need to add fingerprint, wait 5 seconds then exit or press SET button;

4. When you want to return to factory settings, press the RESET button until you hear a sound, release the button, when you hear a long sound, the process is successful.

5. The relay gives an output when the fingerprint is verified or a signal is received from the door opening button. The switch remains on for a certain period of time depending on its position. Give the motor interface output DC5V and wait 5 seconds, then give the same voltage again.