GROW KS200+R503 Two-Color Ring Indicator Light Door Access Control Capacitive Fingerprint Access Control Board

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Quantity Price
10+ $20.45
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4*AA battery or DC3.7-6.5V, Motor Output, Low Power Consumption, Admin/User Function
·Power supply:DC3.7V--6.5V
·Stand-by mode current:<7uA
·Administrator Fingerprint:20 pieces
·User Fingerprint:180 pieces
·Low voltage alarm:4.8V (dry battery)
                                    3.5V (Lithium battery)
Motor Working Mode:
①Forward 0.5 seconds → Rest 5 seconds → Reverse 0.5 seconds.
②Forward 1 seconds → Rest 5 seconds → Reverse 1 seconds.
③Forward 1 seconds
④Forward 2 seconds
⑤Self-locking Mode
⑥Hold Mode


1 Register Administrator Fingerprint:
Long press the SET button,release finger when shows blue indicator light on the control board,now the fingerprint module indicator flash fast,put the same admin finger with multiple times in fingerprint collection area until hearing music means fingerprint register successful. Fingerprint can be registered continuously and it can register 20 pieces administrator fingerprint; if no need adding fingerprint more, waiting a few seconds to exit. If the administrator is fully registered,it will automatically exit the administrator registration state after hear “DiDiDi” and will start register user fingerprint if press SET button again.
2 Register User Fingerprint:
Press the administrator fingerprint until the blue indicator light flash fast and hear the music,means can add user fingerprint. Put the same user finger with multiple times in fingerprint collection area until hearing music means fingerprint register successful.Fingerprint can be registered continuously when system in register state; if no need adding fingerprint more, waiting a few seconds.
3 Delete User Fingerprint:
Press the administrator fingerprint until red indicator light flash fast and hear music,means user fingerprints are deleted.
4 Factory Setting:
Long press the SET button,until shows red indicator light on the control board and hear the music, then release the finger,means initialization operation successful.
1.Any fingerprint can be used when factory default, and this function disabled after fingerprint registered.
2.When the voltage is less than DC4.7V, the red light lightens, means the low voltage warning.
3.In hold mode, when register user fingerprint, press the administrator's fingerprint first. After passing, lift the finger and press the administrator's fingerprint again. When the light flashes and hear the music sounds, the user's fingerprint can be registered.
KS200 suitable for R502-A,R502-F,R502-AW,R503 fingerprint module.
Capacitive Fingerprint Module
508 DPI
DC 3.3V
Fingerprint Capacity
Sensing array
192*192 pixel
Working current
Standby current
Typical touch standby voltage: 3.3V, Average current: 2uA
Fingerprint module external size
Diameter 28 (mm)
Fingerprint module inner size
Diameter 23.5 (mm)
Fingerprint module height
19 (mm)
Effective collection area
Diameter 15.5 (mm)
LED Control
LED Color
Blue and Red
Scanning Speed
< 0.2 second
Verification Speed
< 0.3 second
Matching Method
1:1; 1:N
Work environment
-20C ---60C
Work Humidity
Anti-static capacity
Abrasive resistance intensity
1 million times
Communications baud rate (UART):
(9600 × N) bps where N = 1 ~ 12(default N = 6, ie 57600bps)

R503 Upgrade to waterproof version, waterproof level: IP65
When the temperature of the use environment fluctuates greatly, it may affect the glue, thus affecting the waterproof effect.

·Provide Free Reference SDK Files for Arduino, Android,.Net,Windows and so on. 
·Provide User Manual 
You can download the R503 user manual from this website link:
You can dowload the KS200 user manual from this website link:
R503 Test program operation display video on Youtube:
If need SDK files,pls contact us.

KS200Circuit board diagram

Extension Cable for Set Button and LED. Circuit board diagram:

R503 Fingerprint Module

KS200 Fingerprint Control Board+R503 Fingerprint module+Nut

Brand Name:
Model Number:
Fingerprint capacity:
Power Supply:
4*AA battery or DC3.7V--6.5V
Standby mode current:
less than 7uA