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R5
Resistance
150 Ω
C2
Capacitance
4.7uF
C7
Capacitance
1uF
C6
Capacitance
1uF
R4
Resistance
150 Ω
R3
Resistance
2.2kΩ
C8
Capacitance
0.1uF
R2
Resistance
10kΩ
MOSI
MISO
SCK
ROW_3
RESET
COL_3
COL_1
RESET
ROW_4
ROW_2
BUZZER
MOSI
ROW_1
ROW_1
SCK
LED_G
RESET
ROW_3
LED_R
COL_2
MISO
LED_G
COL_1
ROW_2
COL_2
LED_R
ROW_4
COL_3
BUZZER
Q1
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
RED
RST
GREEN
C5
Capacitance
22uF
C1
Capacitance
120pF
C4
Capacitance
22uF
ISP
BZ1
U1


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Keypad lock reference design

Keypad lock reference design thumbnail
This project involves the design of a keypad lock system. It utilizes an ATMEGA328P microcontroller, buzzers, LEDs for indicator functions and a 4x3 matrix keypad. An in-circuit serial programming (ISP) header is also present for programming the microcontroller. #project #Template #projectTemplate #lock #keypad #arduino #atmega328 #TPS613222A #ISP #buzzer #referenceDesign #simple-embedded #microchip #template #reference-design

Pricing & Availability

Distributor

Qty 1

Digi-Key

$20.68–$65.18

LCSC

$7.71–$7.79

Mouser

$28.79

Controls