EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:RS232-cache
EELAYER 26 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "Open PLC"
Date ""
Rev ""
Comp "FOSSEE"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L MAX232 U1
U 1 1 58591BA0
P 5450 3700
F 0 "U1" H 4900 4750 50  0000 C CNN
F 1 "MAX232" H 5950 4750 50  0000 C CNN
F 2 "Housings_DIP:DIP-16_W7.62mm_LongPads" H 5450 3800 50  0001 C CNN
F 3 "" H 5450 3800 50  0000 C CNN
	1    5450 3700
	1    0    0    -1  
$EndComp
$Comp
L CP1 C1
U 1 1 58591BA1
P 4400 2950
F 0 "C1" H 4425 3050 50  0000 L CNN
F 1 "1uF" H 4425 2850 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 4400 2950 50  0001 C CNN
F 3 "" H 4400 2950 50  0000 C CNN
	1    4400 2950
	1    0    0    -1  
$EndComp
$Comp
L CP1 C2
U 1 1 58591BA2
P 6500 2950
F 0 "C2" H 6525 3050 50  0000 L CNN
F 1 "1uF" H 6525 2850 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 6500 2950 50  0001 C CNN
F 3 "" H 6500 2950 50  0000 C CNN
	1    6500 2950
	1    0    0    -1  
$EndComp
Text Label 5450 2400 0    51   ~ 0
5V
$Comp
L CP1 C3
U 1 1 58591BA5
P 6600 3300
F 0 "C3" H 6625 3400 50  0000 L CNN
F 1 "1uF" H 6625 3200 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 6600 3300 50  0001 C CNN
F 3 "" H 6600 3300 50  0000 C CNN
	1    6600 3300
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR01
U 1 1 58591BA6
P 5450 4950
F 0 "#PWR01" H 5450 4700 50  0001 C CNN
F 1 "GND" H 5450 4800 50  0000 C CNN
F 2 "" H 5450 4950 50  0000 C CNN
F 3 "" H 5450 4950 50  0000 C CNN
	1    5450 4950
	1    0    0    -1  
$EndComp
$Comp
L CP1 C5
U 1 1 58591BA7
P 7050 2700
F 0 "C5" H 7075 2800 50  0000 L CNN
F 1 "1uF" H 7075 2600 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 7050 2700 50  0001 C CNN
F 3 "" H 7050 2700 50  0000 C CNN
	1    7050 2700
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR02
U 1 1 58591BA8
P 7050 2900
F 0 "#PWR02" H 7050 2650 50  0001 C CNN
F 1 "GND" H 7050 2750 50  0000 C CNN
F 2 "" H 7050 2900 50  0000 C CNN
F 3 "" H 7050 2900 50  0000 C CNN
	1    7050 2900
	1    0    0    -1  
$EndComp
Text Label 7050 2450 0    39   ~ 0
5V
Text Label 4400 3800 0    51   ~ 0
TX
Text Label 4400 4200 0    51   ~ 0
RX
$Comp
L DB9 J1
U 1 1 58591BA9
P 7000 4200
F 0 "J1" H 7000 4750 50  0000 C CNN
F 1 "DB9" H 7000 3650 50  0000 C CNN
F 2 "Connect:DB9FC" H 7000 4200 50  0001 C CNN
F 3 "" H 7000 4200 50  0000 C CNN
	1    7000 4200
	1    0    0    1   
$EndComp
NoConn ~ 4650 4000
NoConn ~ 4650 4400
NoConn ~ 6250 4400
NoConn ~ 6250 4000
NoConn ~ 6550 3900
NoConn ~ 6550 4100
NoConn ~ 6550 4300
NoConn ~ 6550 4400
NoConn ~ 6550 4500
NoConn ~ 6550 3800
$Comp
L GND #PWR03
U 1 1 58591BAA
P 6400 4700
F 0 "#PWR03" H 6400 4450 50  0001 C CNN
F 1 "GND" H 6400 4550 50  0000 C CNN
F 2 "" H 6400 4700 50  0000 C CNN
F 3 "" H 6400 4700 50  0000 C CNN
	1    6400 4700
	1    0    0    -1  
$EndComp
Text Notes 5250 5400 0    59   ~ 0
RS232 Connector
Wire Wire Line
	4650 2800 4400 2800
Wire Wire Line
	4650 3100 4400 3100
Wire Wire Line
	6250 3100 6500 3100
Wire Wire Line
	6250 2800 6500 2800
Wire Wire Line
	5450 2500 5450 2400
Wire Wire Line
	6250 3300 6450 3300
Wire Wire Line
	5450 4900 5450 4950
Wire Wire Line
	7050 2550 7050 2450
Wire Wire Line
	7050 2850 7050 2900
Wire Wire Line
	4650 3800 4400 3800
Wire Wire Line
	4650 4200 4400 4200
Wire Wire Line
	6250 3800 6400 3800
Wire Wire Line
	6400 3800 6400 4000
Wire Wire Line
	6400 4000 6550 4000
Wire Wire Line
	6250 4200 6550 4200
Wire Wire Line
	6550 4600 6400 4600
Wire Wire Line
	6400 4600 6400 4700
Wire Notes Line
	550  7750 3600 7750
$Comp
L CONN_01X04 P1
U 1 1 585A30B7
P 3650 3650
F 0 "P1" H 3728 3691 50  0000 L CNN
F 1 "CONN_01X04" H 3728 3600 50  0000 L CNN
F 2 "Pin_Headers:Pin_Header_Angled_1x04" H 3650 3650 50  0001 C CNN
F 3 "" H 3650 3650 50  0000 C CNN
	1    3650 3650
	-1   0    0    1   
$EndComp
Wire Wire Line
	3850 3500 4000 3500
Wire Wire Line
	3850 3600 4000 3600
Wire Wire Line
	3850 3700 4000 3700
Wire Wire Line
	3850 3800 4000 3800
Text Label 4000 3800 0    51   ~ 0
TX
Text Label 4000 3700 0    51   ~ 0
RX
Text Label 4000 3600 0    51   ~ 0
GND
Text Label 4000 3500 0    51   ~ 0
5V
$Comp
L PWR_FLAG #FLG04
U 1 1 585A37D3
P 6100 2250
F 0 "#FLG04" H 6100 2345 50  0001 C CNN
F 1 "PWR_FLAG" H 6100 2474 50  0000 C CNN
F 2 "" H 6100 2250 50  0000 C CNN
F 3 "" H 6100 2250 50  0000 C CNN
	1    6100 2250
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG05
U 1 1 585A37F5
P 6550 2250
F 0 "#FLG05" H 6550 2345 50  0001 C CNN
F 1 "PWR_FLAG" H 6550 2474 50  0000 C CNN
F 2 "" H 6550 2250 50  0000 C CNN
F 3 "" H 6550 2250 50  0000 C CNN
	1    6550 2250
	1    0    0    -1  
$EndComp
Wire Wire Line
	6100 2250 6100 2350
Wire Wire Line
	6550 2250 6550 2350
Text Label 6100 2350 0    51   ~ 0
5V
Text Label 6550 2350 0    51   ~ 0
GND
Wire Wire Line
	6750 3300 6800 3300
Text Label 6850 3500 0    51   ~ 0
GND
$Comp
L CP1 C4
U 1 1 585A3E8D
P 6600 3500
F 0 "C4" H 6625 3600 50  0000 L CNN
F 1 "1uF" H 6625 3400 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 6600 3500 50  0001 C CNN
F 3 "" H 6600 3500 50  0000 C CNN
	1    6600 3500
	0    1    1    0   
$EndComp
Wire Wire Line
	6750 3500 6850 3500
Wire Wire Line
	6450 3500 6250 3500
Wire Wire Line
	6250 3500 6250 3600
Text Label 6800 3300 0    51   ~ 0
5V
$EndSCHEMATC