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:special 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:esp_onelayer2-cache EELAYER 27 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "2 sep 2015" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L XTAL4P X1 U 1 1 55C8B716 P 4400 1350 F 0 "X1" H 4400 1500 60 0000 C CNN F 1 "26MHz" H 4400 1200 60 0000 C CNN F 2 "XTAL4P" H 4400 1350 60 0000 C CNN F 3 "" H 4400 1350 60 0000 C CNN 1 4400 1350 -1 0 0 1 $EndComp $Comp L 25Q40B U3 U 1 1 55C8B733 P 6350 2450 F 0 "U3" H 6000 2850 60 0000 C CNN F 1 "W25Q16DV" H 6000 2750 60 0000 C CNN F 2 "SO8ESKINNY" H 6200 2450 60 0000 C CNN F 3 "~" H 6200 2450 60 0000 C CNN 1 6350 2450 1 0 0 -1 $EndComp $Comp L C C5 U 1 1 55C8B75E P 2750 2400 F 0 "C5" V 2650 2500 40 0000 L CNN F 1 "5.6p" V 2600 2400 40 0000 L CNN F 2 "SM0603" V 2600 2250 30 0000 C CNN F 3 "~" H 2750 2400 60 0000 C CNN 1 2750 2400 0 -1 -1 0 $EndComp $Comp L R R4 U 1 1 55C8B7AB P 3800 1650 F 0 "R4" V 3880 1650 40 0000 C CNN F 1 "12k" V 3807 1651 40 0000 C CNN F 2 "SM0603" V 3730 1650 30 0000 C CNN F 3 "~" H 3800 1650 30 0000 C CNN 1 3800 1650 0 -1 -1 0 $EndComp $Comp L R R5 U 1 1 55C8B7BD P 4850 3650 F 0 "R5" V 4930 3650 40 0000 C CNN F 1 "12k" V 4857 3651 40 0000 C CNN F 2 "SM0603" V 4780 3650 30 0000 C CNN F 3 "~" H 4850 3650 30 0000 C CNN 1 4850 3650 0 -1 -1 0 $EndComp $Comp L CONN_1 P4 U 1 1 55C8B809 P 3000 3750 F 0 "P4" H 3080 3750 40 0000 L CNN F 1 "GND" H 3000 3805 30 0001 C CNN F 2 ".1SMTPIN" H 3000 3750 60 0000 C CNN F 3 "" H 3000 3750 60 0000 C CNN 1 3000 3750 1 0 0 -1 $EndComp $Comp L GND #PWR9 U 1 1 55C8B824 P 2800 3800 F 0 "#PWR9" H 2800 3800 30 0001 C CNN F 1 "GND" H 2800 3730 30 0001 C CNN F 2 "" H 2800 3800 60 0000 C CNN F 3 "" H 2800 3800 60 0000 C CNN 1 2800 3800 1 0 0 -1 $EndComp $Comp L CONN_1 P5 U 1 1 55C8B835 P 3000 4050 F 0 "P5" H 3080 4050 40 0000 L CNN F 1 "5V" H 3000 4105 30 0001 C CNN F 2 ".1SMTPIN" H 3000 4050 60 0000 C CNN F 3 "" H 3000 4050 60 0000 C CNN 1 3000 4050 1 0 0 -1 $EndComp $Comp L CONN_1 P3 U 1 1 55C8B83B P 3000 3650 F 0 "P3" H 3080 3650 40 0000 L CNN F 1 "GND" H 3000 3705 30 0001 C CNN F 2 ".1SMTPIN" H 3000 3650 60 0000 C CNN F 3 "" H 3000 3650 60 0000 C CNN 1 3000 3650 1 0 0 -1 $EndComp $Comp L +3.3V #PWR10 U 1 1 55C8B852 P 2800 4050 F 0 "#PWR10" H 2800 4010 30 0001 C CNN F 1 "+3.3V" H 2800 4160 30 0000 C CNN F 2 "" H 2800 4050 60 0000 C CNN F 3 "" H 2800 4050 60 0000 C CNN 1 2800 4050 1 0 0 -1 $EndComp $Comp L C C6 U 1 1 55C8B88E P 4000 1150 F 0 "C6" H 4000 1250 40 0000 L CNN F 1 "12p" H 4006 1065 40 0000 L CNN F 2 "SM0603" H 4038 1000 30 0000 C CNN F 3 "~" H 4000 1150 60 0000 C CNN 1 4000 1150 -1 0 0 1 $EndComp $Comp L C C7 U 1 1 55C8B894 P 4800 1150 F 0 "C7" H 4800 1250 40 0000 L CNN F 1 "12p" H 4806 1065 40 0000 L CNN F 2 "SM0603" H 4838 1000 30 0000 C CNN F 3 "~" H 4800 1150 60 0000 C CNN 1 4800 1150 -1 0 0 1 $EndComp $Comp L CONN_1 P8 U 1 1 55C8B8D4 P 4750 3850 F 0 "P8" H 4830 3850 40 0000 L CNN F 1 "GPIO0" H 4750 3905 30 0001 C CNN F 2 ".1SMTPIN" H 4750 3850 60 0000 C CNN F 3 "" H 4750 3850 60 0000 C CNN 1 4750 3850 1 0 0 -1 $EndComp $Comp L CONN_1 P7 U 1 1 55C8B8E6 P 4700 1700 F 0 "P7" H 4780 1700 40 0000 L CNN F 1 "UTX" H 4700 1755 30 0001 C CNN F 2 ".1SMTPIN" H 4700 1700 60 0000 C CNN F 3 "" H 4700 1700 60 0000 C CNN 1 4700 1700 1 0 0 -1 $EndComp $Comp L CONN_1 P9 U 1 1 55C8B8EC P 4800 1800 F 0 "P9" H 4880 1800 40 0000 L CNN F 1 "URX" H 4800 1855 30 0001 C CNN F 2 ".1SMTPIN" H 4800 1800 60 0000 C CNN F 3 "" H 4800 1800 60 0000 C CNN 1 4800 1800 1 0 0 -1 $EndComp $Comp L CONN_1 P6 U 1 1 55C8B90A P 4450 4100 F 0 "P6" H 4530 4100 40 0000 L CNN F 1 "GPIO2" H 4450 4155 30 0001 C CNN F 2 ".1SMTPIN" H 4450 4100 60 0000 C CNN F 3 "" H 4450 4100 60 0000 C CNN 1 4450 4100 0 1 1 0 $EndComp $Comp L +3.3V #PWR20 U 1 1 55C8B924 P 4150 3550 F 0 "#PWR20" H 4150 3510 30 0001 C CNN F 1 "+3.3V" H 4150 3660 30 0000 C CNN F 2 "" H 4150 3550 60 0000 C CNN F 3 "" H 4150 3550 60 0000 C CNN 1 4150 3550 -1 0 0 1 $EndComp $Comp L +3.3V #PWR26 U 1 1 55C8B95D P 5350 3350 F 0 "#PWR26" H 5350 3310 30 0001 C CNN F 1 "+3.3V" H 5350 3460 30 0000 C CNN F 2 "" H 5350 3350 60 0000 C CNN F 3 "" H 5350 3350 60 0000 C CNN 1 5350 3350 -1 0 0 1 $EndComp $Comp L GND #PWR23 U 1 1 55C8B987 P 4250 3600 F 0 "#PWR23" H 4250 3600 30 0001 C CNN F 1 "GND" H 4250 3530 30 0001 C CNN F 2 "" H 4250 3600 60 0000 C CNN F 3 "" H 4250 3600 60 0000 C CNN 1 4250 3600 1 0 0 -1 $EndComp $Comp L +3.3V #PWR16 U 1 1 55C8BB40 P 3100 2200 F 0 "#PWR16" H 3100 2160 30 0001 C CNN F 1 "+3.3V" H 3100 2310 30 0000 C CNN F 2 "" H 3100 2200 60 0000 C CNN F 3 "" H 3100 2200 60 0000 C CNN 1 3100 2200 1 0 0 -1 $EndComp $Comp L GND #PWR19 U 1 1 55C8BB72 P 3750 1850 F 0 "#PWR19" H 3750 1850 30 0001 C CNN F 1 "GND" H 3750 1780 30 0001 C CNN F 2 "" H 3750 1850 60 0000 C CNN F 3 "" H 3750 1850 60 0000 C CNN 1 3750 1850 1 0 0 -1 $EndComp $Comp L GND #PWR18 U 1 1 55C8BBA7 P 3550 1700 F 0 "#PWR18" H 3550 1700 30 0001 C CNN F 1 "GND" H 3550 1630 30 0001 C CNN F 2 "" H 3550 1700 60 0000 C CNN F 3 "" H 3550 1700 60 0000 C CNN 1 3550 1700 1 0 0 -1 $EndComp $Comp L +3.3V #PWR22 U 1 1 55C8BBDE P 4200 1750 F 0 "#PWR22" H 4200 1710 30 0001 C CNN F 1 "+3.3V" H 4200 1860 30 0000 C CNN F 2 "" H 4200 1750 60 0000 C CNN F 3 "" H 4200 1750 60 0000 C CNN 1 4200 1750 1 0 0 -1 $EndComp $Comp L GND #PWR21 U 1 1 55C8BE48 P 4200 900 F 0 "#PWR21" H 4200 900 30 0001 C CNN F 1 "GND" H 4200 830 30 0001 C CNN F 2 "" H 4200 900 60 0000 C CNN F 3 "" H 4200 900 60 0000 C CNN 1 4200 900 1 0 0 -1 $EndComp $Comp L +3.3V #PWR28 U 1 1 55C8BF3B P 7050 2250 F 0 "#PWR28" H 7050 2210 30 0001 C CNN F 1 "+3.3V" H 7050 2360 30 0000 C CNN F 2 "" H 7050 2250 60 0000 C CNN F 3 "" H 7050 2250 60 0000 C CNN 1 7050 2250 1 0 0 -1 $EndComp $Comp L GND #PWR27 U 1 1 55C8BF8E P 5650 2700 F 0 "#PWR27" H 5650 2700 30 0001 C CNN F 1 "GND" H 5650 2630 30 0001 C CNN F 2 "" H 5650 2700 60 0000 C CNN F 3 "" H 5650 2700 60 0000 C CNN 1 5650 2700 1 0 0 -1 $EndComp $Comp L AP1117 U1 U 1 1 55C8C2C5 P 2350 1450 F 0 "U1" H 2350 1650 60 0000 C CNN F 1 "AP1117" H 2350 1250 60 0000 C CNN F 2 "SOT223" H 2350 1450 60 0000 C CNN F 3 "" H 2350 1450 60 0000 C CNN 1 2350 1450 1 0 0 -1 $EndComp $Comp L C C3 U 1 1 55C8C2DE P 1350 1400 F 0 "C3" H 1350 1500 40 0000 L CNN F 1 "10u" H 1356 1315 40 0000 L CNN F 2 "SM0805" H 1388 1250 30 0000 C CNN F 3 "~" H 1350 1400 60 0000 C CNN 1 1350 1400 -1 0 0 1 $EndComp $Comp L C C2 U 1 1 55C8C2E4 P 1100 1400 F 0 "C2" H 1100 1500 40 0000 L CNN F 1 "10u" H 1106 1315 40 0000 L CNN F 2 "SM0603" H 1138 1250 30 0000 C CNN F 3 "~" H 1100 1400 60 0000 C CNN 1 1100 1400 -1 0 0 1 $EndComp $Comp L C C1 U 1 1 55C8C2EA P 850 1400 F 0 "C1" H 850 1500 40 0000 L CNN F 1 "1u" H 856 1315 40 0000 L CNN F 2 "SM0603" H 888 1250 30 0000 C CNN F 3 "~" H 850 1400 60 0000 C CNN 1 850 1400 -1 0 0 1 $EndComp $Comp L +3.3V #PWR1 U 1 1 55C8C314 P 1000 1150 F 0 "#PWR1" H 1000 1110 30 0001 C CNN F 1 "+3.3V" H 1000 1260 30 0000 C CNN F 2 "" H 1000 1150 60 0000 C CNN F 3 "" H 1000 1150 60 0000 C CNN 1 1000 1150 1 0 0 -1 $EndComp $Comp L +3.3V #PWR6 U 1 1 55C8C3E4 P 1750 1400 F 0 "#PWR6" H 1750 1360 30 0001 C CNN F 1 "+3.3V" H 1750 1510 30 0000 C CNN F 2 "" H 1750 1400 60 0000 C CNN F 3 "" H 1750 1400 60 0000 C CNN 1 1750 1400 1 0 0 -1 $EndComp $Comp L +3.3V #PWR15 U 1 1 55C8C451 P 3050 1450 F 0 "#PWR15" H 3050 1410 30 0001 C CNN F 1 "+3.3V" H 3050 1560 30 0000 C CNN F 2 "" H 3050 1450 60 0000 C CNN F 3 "" H 3050 1450 60 0000 C CNN 1 3050 1450 1 0 0 -1 $EndComp $Comp L GND #PWR13 U 1 1 55C8C4C0 P 2950 1650 F 0 "#PWR13" H 2950 1650 30 0001 C CNN F 1 "GND" H 2950 1580 30 0001 C CNN F 2 "" H 2950 1650 60 0000 C CNN F 3 "" H 2950 1650 60 0000 C CNN 1 2950 1650 1 0 0 -1 $EndComp $Comp L GND #PWR2 U 1 1 55C8C530 P 1050 1700 F 0 "#PWR2" H 1050 1700 30 0001 C CNN F 1 "GND" H 1050 1630 30 0001 C CNN F 2 "" H 1050 1700 60 0000 C CNN F 3 "" H 1050 1700 60 0000 C CNN 1 1050 1700 1 0 0 -1 $EndComp $Comp L +5V #PWR4 U 1 1 55C8C684 P 1350 1150 F 0 "#PWR4" H 1350 1240 20 0001 C CNN F 1 "+5V" H 1350 1240 30 0000 C CNN F 2 "" H 1350 1150 60 0000 C CNN F 3 "" H 1350 1150 60 0000 C CNN 1 1350 1150 1 0 0 -1 $EndComp $Comp L +5V #PWR12 U 1 1 55C8C705 P 2900 1300 F 0 "#PWR12" H 2900 1390 20 0001 C CNN F 1 "+5V" H 2900 1390 30 0000 C CNN F 2 "" H 2900 1300 60 0000 C CNN F 3 "" H 2900 1300 60 0000 C CNN 1 2900 1300 1 0 0 -1 $EndComp $Comp L CONN_1 P11 U 1 1 55C8C79F P 3250 1000 F 0 "P11" H 3330 1000 40 0000 L CNN F 1 "5V" H 3250 1055 30 0001 C CNN F 2 ".1SMTPIN" H 3250 1000 60 0000 C CNN F 3 "" H 3250 1000 60 0000 C CNN 1 3250 1000 1 0 0 -1 $EndComp $Comp L +5V #PWR14 U 1 1 55C8C7A5 P 3050 950 F 0 "#PWR14" H 3050 1040 20 0001 C CNN F 1 "+5V" H 3050 1040 30 0000 C CNN F 2 "" H 3050 950 60 0000 C CNN F 3 "" H 3050 950 60 0000 C CNN 1 3050 950 1 0 0 -1 $EndComp $Comp L CONN_1 P10 U 1 1 55C8C838 P 3000 3550 F 0 "P10" H 3080 3550 40 0000 L CNN F 1 "GND" H 3000 3605 30 0001 C CNN F 2 ".1SMTPIN" H 3000 3550 60 0000 C CNN F 3 "" H 3000 3550 60 0000 C CNN 1 3000 3550 1 0 0 -1 $EndComp $Comp L GND #PWR25 U 1 1 55C8CB05 P 5350 2200 F 0 "#PWR25" H 5350 2200 30 0001 C CNN F 1 "GND" H 5350 2130 30 0001 C CNN F 2 "" H 5350 2200 60 0000 C CNN F 3 "" H 5350 2200 60 0000 C CNN 1 5350 2200 -1 0 0 1 $EndComp $Comp L R R6 U 1 1 55C8CBA7 P 5850 2900 F 0 "R6" V 5930 2900 40 0000 C CNN F 1 "0" V 5857 2901 40 0000 C CNN F 2 "SM0805" V 5780 2900 30 0000 C CNN F 3 "~" H 5850 2900 30 0000 C CNN 1 5850 2900 0 -1 -1 0 $EndComp $Comp L CONN_1 P12 U 1 1 55C8F0BE P 3950 3850 F 0 "P12" H 4030 3850 40 0000 L CNN F 1 "GPIO14" H 3950 3905 30 0001 C CNN F 2 ".1SMTPIN" H 3950 3850 60 0000 C CNN F 3 "" H 3950 3850 60 0000 C CNN 1 3950 3850 0 1 1 0 $EndComp $Comp L CONN_1 P13 U 1 1 55C8F0C4 P 4050 3850 F 0 "P13" H 4130 3850 40 0000 L CNN F 1 "GPIO12" H 4050 3905 30 0001 C CNN F 2 ".1SMTPIN" H 4050 3850 60 0000 C CNN F 3 "" H 4050 3850 60 0000 C CNN 1 4050 3850 0 1 1 0 $EndComp $Comp L CONN_1 P14 U 1 1 55C8F0CA P 4850 3500 F 0 "P14" H 4930 3500 40 0000 L CNN F 1 "GPIO5" H 4850 3555 30 0001 C CNN F 2 ".1SMTPIN" H 4850 3500 60 0000 C CNN F 3 "" H 4850 3500 60 0000 C CNN 1 4850 3500 1 0 0 -1 $EndComp $Comp L GND #PWR17 U 1 1 55CA07E4 P 3450 3550 F 0 "#PWR17" H 3450 3550 30 0001 C CNN F 1 "GND" H 3450 3480 30 0001 C CNN F 2 "" H 3450 3550 60 0000 C CNN F 3 "" H 3450 3550 60 0000 C CNN 1 3450 3550 1 0 0 -1 $EndComp $Comp L CONN_1 P16 U 1 1 55CA0893 P 3550 3400 F 0 "P16" H 3630 3400 40 0000 L CNN F 1 "GND" H 3550 3455 30 0001 C CNN F 2 ".1SMTPIN" H 3550 3400 60 0000 C CNN F 3 "" H 3550 3400 60 0000 C CNN 1 3550 3400 1 0 0 -1 $EndComp $Comp L CONN_1 P17 U 1 1 55D24760 P 4300 4700 F 0 "P17" H 4380 4700 40 0000 L CNN F 1 "GPIO15" H 4300 4755 30 0001 C CNN F 2 ".1SMTPIN" H 4300 4700 60 0000 C CNN F 3 "" H 4300 4700 60 0000 C CNN 1 4300 4700 0 1 1 0 $EndComp Wire Wire Line 2800 3550 2800 3800 Wire Wire Line 2800 3750 2850 3750 Wire Wire Line 2850 3650 2800 3650 Connection ~ 2800 3750 Wire Wire Line 2800 4050 2850 4050 Wire Wire Line 4050 1650 4050 1850 Wire Wire Line 4150 3450 4150 3550 Wire Wire Line 4250 3450 4250 3600 Wire Wire Line 4600 3650 4600 3850 Wire Wire Line 4600 3750 4550 3750 Wire Wire Line 4550 3750 4550 3450 Connection ~ 4600 3750 Wire Wire Line 4450 3450 4450 3950 Wire Wire Line 5300 3000 5350 3000 Wire Wire Line 5350 3000 5350 3350 Wire Wire Line 5100 3650 5100 3250 Wire Wire Line 5100 3250 5350 3250 Connection ~ 5350 3250 Wire Wire Line 4350 3450 4350 4250 Wire Wire Line 3050 2900 3150 2900 Wire Wire Line 3050 1750 3050 2900 Wire Wire Line 3050 2600 3150 2600 Wire Wire Line 3050 2500 3150 2500 Connection ~ 3050 2600 Wire Wire Line 3150 2400 2950 2400 Wire Wire Line 2100 2650 2100 2800 Wire Wire Line 2100 2800 3150 2800 Wire Wire Line 2550 2400 2550 2250 Wire Wire Line 3100 2200 3100 2300 Wire Wire Line 3050 2300 3150 2300 Wire Wire Line 3750 1850 3750 1800 Wire Wire Line 3750 1800 3850 1800 Wire Wire Line 3850 1800 3850 1850 Wire Wire Line 3550 1700 3550 1650 Wire Wire Line 4150 1750 4150 1850 Wire Wire Line 4200 1750 4150 1750 Wire Wire Line 4150 1800 4250 1800 Wire Wire Line 4250 1800 4250 1850 Connection ~ 4150 1800 Wire Wire Line 4350 1850 4350 1500 Wire Wire Line 4350 1500 4100 1500 Wire Wire Line 4100 1500 4100 1350 Wire Wire Line 4450 1850 4450 1500 Wire Wire Line 4450 1500 4700 1500 Wire Wire Line 4700 1500 4700 1350 Wire Wire Line 4000 1350 4000 1400 Wire Wire Line 4000 1400 4100 1400 Connection ~ 4100 1400 Wire Wire Line 4700 1400 4800 1400 Wire Wire Line 4800 1400 4800 1350 Connection ~ 4700 1400 Wire Wire Line 4800 950 4800 850 Wire Wire Line 4800 850 4000 850 Wire Wire Line 4000 850 4000 950 Wire Wire Line 4350 1050 4450 1050 Wire Wire Line 4400 1050 4400 850 Connection ~ 4400 850 Connection ~ 4400 1050 Wire Wire Line 4200 900 4200 850 Connection ~ 4200 850 Wire Wire Line 4650 1850 4650 1800 Wire Wire Line 7050 2250 7050 2300 Wire Wire Line 5650 2700 5650 2600 Wire Wire Line 7350 2900 7350 2400 Wire Wire Line 7350 2400 7050 2400 Wire Wire Line 5650 2500 5550 2500 Wire Wire Line 5550 2500 5550 2800 Wire Wire Line 5550 2800 5300 2800 Wire Wire Line 5300 2700 5500 2700 Wire Wire Line 5500 2700 5500 2300 Wire Wire Line 5500 2300 5650 2300 Wire Wire Line 5300 2600 5300 2550 Wire Wire Line 5300 2550 7050 2550 Wire Wire Line 7050 2550 7050 2500 Wire Wire Line 5300 2500 5450 2500 Wire Wire Line 5450 2500 5450 2400 Wire Wire Line 5450 2400 5650 2400 Wire Wire Line 7050 2600 7250 2600 Wire Wire Line 7250 2600 7250 2350 Wire Wire Line 7250 2350 5400 2350 Wire Wire Line 5400 2350 5400 2400 Wire Wire Line 5400 2400 5300 2400 Wire Wire Line 1000 1150 1000 1200 Wire Wire Line 850 1200 1100 1200 Connection ~ 1000 1200 Wire Wire Line 1800 1450 1750 1450 Wire Wire Line 1750 1450 1750 1400 Wire Wire Line 3050 1450 2900 1450 Wire Wire Line 2950 1650 2950 1550 Wire Wire Line 2950 1550 2900 1550 Wire Wire Line 1050 1550 1050 1700 Wire Wire Line 1050 1600 1100 1600 Wire Wire Line 600 1650 1050 1650 Wire Wire Line 850 1650 850 1600 Connection ~ 1050 1650 Wire Wire Line 1050 1550 1350 1550 Wire Wire Line 1350 1550 1350 1600 Connection ~ 1050 1600 Wire Wire Line 1350 1150 1350 1200 Wire Wire Line 2900 1300 2900 1350 Wire Wire Line 3050 950 3050 1000 Wire Wire Line 3050 1000 3100 1000 Wire Wire Line 2850 3550 2800 3550 Connection ~ 2800 3650 Connection ~ 3100 2300 Connection ~ 3050 2500 Wire Wire Line 4550 1850 4550 1700 Wire Wire Line 5350 2200 5350 2300 Wire Wire Line 5350 2300 5300 2300 Wire Wire Line 5300 2900 5600 2900 Wire Wire Line 6100 2900 7350 2900 Wire Wire Line 4700 3500 4650 3500 Wire Wire Line 4650 3500 4650 3450 Wire Wire Line 4050 3450 4050 3700 Wire Wire Line 3950 3700 3950 3450 Wire Wire Line 3450 3550 3450 3250 Wire Wire Line 3450 3250 3250 3250 Wire Wire Line 3250 3250 3250 3050 Wire Wire Line 3250 3050 3150 3050 Wire Wire Line 3150 3050 3150 3000 Wire Wire Line 3400 3400 3400 3250 Connection ~ 3400 3250 $Comp L ESP8266EX U2 U 1 1 55C8B6FD P 4300 2650 F 0 "U2" H 3400 3350 60 0000 C CNN F 1 "ESP8266EX" H 3450 3250 60 0000 C CNN F 2 "QFN32" H 3400 3350 60 0000 C CNN F 3 "~" H 3400 3350 60 0000 C CNN 1 4300 2650 1 0 0 -1 $EndComp Wire Wire Line 3950 1850 3950 1750 Wire Wire Line 3950 1750 3050 1750 Connection ~ 3050 2300 $Comp L C C8 U 1 1 55E475A5 P 600 1400 F 0 "C8" H 600 1500 40 0000 L CNN F 1 "10n" H 606 1315 40 0000 L CNN F 2 "SM0603" H 638 1250 30 0000 C CNN F 3 "~" H 600 1400 60 0000 C CNN 1 600 1400 -1 0 0 1 $EndComp Wire Wire Line 600 1200 600 1150 Wire Wire Line 600 1150 900 1150 Wire Wire Line 900 1150 900 1200 Connection ~ 900 1200 Wire Wire Line 600 1600 600 1650 Connection ~ 850 1650 $Comp L CONN_2 P2 U 1 1 55E474E2 P 2650 1900 F 0 "P2" V 2600 1900 40 0000 C CNN F 1 "UFL" V 2700 1900 40 0000 C CNN F 2 "UFL" H 2650 1900 60 0000 C CNN F 3 "" H 2650 1900 60 0000 C CNN 1 2650 1900 0 -1 -1 0 $EndComp $Comp L CONN_1 P1 U 1 1 55C8B86A P 1950 2650 F 0 "P1" H 2030 2650 40 0000 L CNN F 1 "MIC" H 1950 2705 30 0001 C CNN F 2 ".1SMTPIN" H 1950 2650 60 0000 C CNN F 3 "" H 1950 2650 60 0000 C CNN 1 1950 2650 -1 0 0 1 $EndComp $Comp L GND #PWR11 U 1 1 55E475A3 P 2850 2300 F 0 "#PWR11" H 2850 2300 30 0001 C CNN F 1 "GND" H 2850 2230 30 0001 C CNN F 2 "" H 2850 2300 60 0000 C CNN F 3 "" H 2850 2300 60 0000 C CNN 1 2850 2300 1 0 0 -1 $EndComp Wire Wire Line 2850 2300 2850 2250 Wire Wire Line 2850 2250 2750 2250 $Comp L R R2 U 1 1 55E48F87 P 2450 3150 F 0 "R2" V 2530 3150 40 0000 C CNN F 1 "12k" V 2457 3151 40 0000 C CNN F 2 "SM0603" V 2380 3150 30 0000 C CNN F 3 "~" H 2450 3150 30 0000 C CNN 1 2450 3150 -1 0 0 1 $EndComp $Comp L R R1 U 1 1 55E48F8D P 2300 3150 F 0 "R1" V 2380 3150 40 0000 C CNN F 1 "47k" V 2307 3151 40 0000 C CNN F 2 "SM0603" V 2230 3150 30 0000 C CNN F 3 "~" H 2300 3150 30 0000 C CNN 1 2300 3150 -1 0 0 1 $EndComp $Comp L GND #PWR8 U 1 1 55E48F93 P 2450 3450 F 0 "#PWR8" H 2450 3450 30 0001 C CNN F 1 "GND" H 2450 3380 30 0001 C CNN F 2 "" H 2450 3450 60 0000 C CNN F 3 "" H 2450 3450 60 0000 C CNN 1 2450 3450 1 0 0 -1 $EndComp $Comp L +3.3V #PWR7 U 1 1 55E48F99 P 2300 3450 F 0 "#PWR7" H 2300 3410 30 0001 C CNN F 1 "+3.3V" H 2300 3560 30 0000 C CNN F 2 "" H 2300 3450 60 0000 C CNN F 3 "" H 2300 3450 60 0000 C CNN 1 2300 3450 -1 0 0 1 $EndComp Wire Wire Line 2300 3400 2300 3450 Wire Wire Line 2450 3400 2450 3450 Wire Wire Line 2450 2900 2450 2800 Connection ~ 2450 2800 Wire Wire Line 2300 2900 2300 2800 Connection ~ 2300 2800 $Comp L R R3 U 1 1 55E49550 P 4550 4450 F 0 "R3" V 4630 4450 40 0000 C CNN F 1 "12k" V 4557 4451 40 0000 C CNN F 2 "SM0603" V 4480 4450 30 0000 C CNN F 3 "~" H 4550 4450 30 0000 C CNN 1 4550 4450 0 -1 -1 0 $EndComp Wire Wire Line 4200 4550 4300 4550 Wire Wire Line 4200 4250 4200 4550 Wire Wire Line 4200 4450 4300 4450 Wire Wire Line 4350 4250 4200 4250 Connection ~ 4200 4450 $Comp L GND #PWR24 U 1 1 55E4967D P 4900 4550 F 0 "#PWR24" H 4900 4550 30 0001 C CNN F 1 "GND" H 4900 4480 30 0001 C CNN F 2 "" H 4900 4550 60 0000 C CNN F 3 "" H 4900 4550 60 0000 C CNN 1 4900 4550 1 0 0 -1 $EndComp Wire Wire Line 4900 4550 4900 4450 Wire Wire Line 4900 4450 4800 4450 $Comp L R R7 U 1 1 55E49C42 P 1350 2500 F 0 "R7" V 1430 2500 40 0000 C CNN F 1 "0" V 1357 2501 40 0000 C CNN F 2 "SM0805" V 1280 2500 30 0000 C CNN F 3 "~" H 1350 2500 30 0000 C CNN 1 1350 2500 0 -1 -1 0 $EndComp $Comp L GND #PWR3 U 1 1 55E49C48 P 1050 2600 F 0 "#PWR3" H 1050 2600 30 0001 C CNN F 1 "GND" H 1050 2530 30 0001 C CNN F 2 "" H 1050 2600 60 0000 C CNN F 3 "" H 1050 2600 60 0000 C CNN 1 1050 2600 1 0 0 -1 $EndComp $Comp L GND #PWR5 U 1 1 55E49C4E P 1650 2600 F 0 "#PWR5" H 1650 2600 30 0001 C CNN F 1 "GND" H 1650 2530 30 0001 C CNN F 2 "" H 1650 2600 60 0000 C CNN F 3 "" H 1650 2600 60 0000 C CNN 1 1650 2600 1 0 0 -1 $EndComp Wire Wire Line 1650 2600 1650 2500 Wire Wire Line 1650 2500 1600 2500 Wire Wire Line 1100 2500 1050 2500 Wire Wire Line 1050 2500 1050 2600 $EndSCHEMATC