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:DonB
LIBS:BalloonRadio-cache
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 4
Title "NavSpark MicroAPRS balloon radio"
Date ""
Rev ""
Comp ""
Comment1 "Donald Bindner"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L 4066 U4
U 1 1 55672D3E
P 4100 4600
F 0 "U4" H 4300 4451 40  0000 C CNN
F 1 "4066" H 4300 4750 40  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 4100 4600 60  0001 C CNN
F 3 "" H 4100 4600 60  0000 C CNN
	1    4100 4600
	1    0    0    -1  
$EndComp
$Comp
L 4066 U4
U 2 1 55672D45
P 4100 3400
F 0 "U4" H 4300 3251 40  0000 C CNN
F 1 "4066" H 4300 3550 40  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 4100 3400 60  0001 C CNN
F 3 "" H 4100 3400 60  0000 C CNN
	2    4100 3400
	1    0    0    -1  
$EndComp
$Comp
L 4066 U4
U 3 1 55672D4C
P 6200 3400
F 0 "U4" H 6400 3251 40  0000 C CNN
F 1 "4066" H 6400 3550 40  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 6200 3400 60  0001 C CNN
F 3 "" H 6200 3400 60  0000 C CNN
	3    6200 3400
	1    0    0    -1  
$EndComp
$Comp
L 4066 U4
U 4 1 55672D53
P 6200 4600
F 0 "U4" H 6400 4451 40  0000 C CNN
F 1 "4066" H 6400 4750 40  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 6200 4600 60  0001 C CNN
F 3 "" H 6200 4600 60  0000 C CNN
	4    6200 4600
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR037
U 1 1 55672D60
P 6200 3700
F 0 "#PWR037" H 6200 3450 50  0001 C CNN
F 1 "GND" V 6200 3500 50  0000 C CNN
F 2 "" H 6200 3700 60  0000 C CNN
F 3 "" H 6200 3700 60  0000 C CNN
	1    6200 3700
	1    0    0    -1  
$EndComp
Wire Wire Line
	6200 3100 6200 3150
Wire Wire Line
	6200 3650 6200 3700
Text GLabel 3700 3400 0    50   Input ~ 0
txNav
Text GLabel 3700 4600 0    50   Input ~ 0
rxNav
Text GLabel 4500 3400 2    50   Input ~ 0
rx328
Text GLabel 4500 4600 2    50   Input ~ 0
tx328
Wire Wire Line
	3700 3400 3800 3400
Wire Wire Line
	3800 3550 3700 3550
Wire Wire Line
	3800 4600 3700 4600
Wire Wire Line
	3700 4750 3800 4750
Text GLabel 3700 3550 0    50   Input ~ 0
serial328
Text GLabel 3700 4750 0    50   Input ~ 0
serial328
Wire Wire Line
	4400 3400 4500 3400
Wire Wire Line
	4400 4600 4500 4600
Text GLabel 5800 3400 0    50   Input ~ 0
txNav
Text GLabel 5800 4600 0    50   Input ~ 0
rxNav
Text GLabel 6600 4600 2    50   Input ~ 0
txRadio
Text GLabel 6600 3400 2    50   Input ~ 0
rxRadio
Wire Wire Line
	5800 3400 5900 3400
Wire Wire Line
	5800 3550 5900 3550
Wire Wire Line
	5800 4600 5900 4600
Wire Wire Line
	5800 4750 5900 4750
Wire Wire Line
	6500 3400 6600 3400
Wire Wire Line
	6500 4600 6600 4600
Text GLabel 5800 3550 0    50   Input ~ 0
serialRadio
Text GLabel 5800 4750 0    50   Input ~ 0
serialRadio
Text Notes 3950 2550 0    100  ~ 0
Serial communication switch
$Comp
L +3.3V #PWR038
U 1 1 556AA3D5
P 6200 3100
F 0 "#PWR038" H 6200 2950 50  0001 C CNN
F 1 "+3.3V" V 6200 3350 50  0000 C CNN
F 2 "" H 6200 3100 60  0000 C CNN
F 3 "" H 6200 3100 60  0000 C CNN
	1    6200 3100
	1    0    0    -1  
$EndComp
$EndSCHEMATC