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:maxim LIBS:misc LIBS:reflowboard-cache EELAYER 27 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "12 jun 2015" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L ATTINY88-A U2 U 1 1 5578620D P 5250 3800 F 0 "U2" H 4500 5350 40 0000 C CNN F 1 "ATTINY88-A" H 5850 2200 40 0000 C CNN F 2 "TQFP32" H 5250 3800 35 0000 C CIN F 3 "" H 5250 3800 60 0000 C CNN 1 5250 3800 1 0 0 -1 $EndComp $Comp L MAX31856 U1 U 1 1 55786E04 P 2600 2825 F 0 "U1" H 2350 3325 60 0000 C CNN F 1 "MAX31856" H 2600 2425 60 0000 C CNN F 2 "" H 2650 2475 60 0000 C CNN F 3 "" H 2650 2475 60 0000 C CNN 1 2600 2825 1 0 0 -1 $EndComp $Comp L CONN_3X2 P3 U 1 1 55787D3F P 4500 5800 F 0 "P3" H 4500 6050 50 0000 C CNN F 1 "ISP" V 4500 5850 40 0000 C CNN F 2 "" H 4500 5800 60 0000 C CNN F 3 "" H 4500 5800 60 0000 C CNN 1 4500 5800 1 0 0 -1 $EndComp Text GLabel 6200 3150 2 39 BiDi ~ 0 MOSI Text GLabel 6200 3250 2 39 BiDi ~ 0 MISO Text GLabel 6200 3350 2 39 BiDi ~ 0 SCK Text GLabel 6200 4300 2 39 Input ~ 0 ~RESET Text GLabel 4100 5850 0 39 Output ~ 0 ~RESET Text GLabel 4100 5650 0 39 Input ~ 0 MISO Text GLabel 4100 5750 0 39 Output ~ 0 SCK Text GLabel 4900 5750 2 39 Output ~ 0 MOSI $Comp L R R3 U 1 1 557882C9 P 3400 2675 F 0 "R3" V 3550 2875 40 0000 C CNN F 1 "1K" V 3407 2676 40 0000 C CNN F 2 "~" V 3330 2675 30 0000 C CNN F 3 "~" H 3400 2675 30 0000 C CNN 1 3400 2675 0 1 1 0 $EndComp $Comp L R R4 U 1 1 557882F7 P 3400 2775 F 0 "R4" V 3550 2575 40 0000 C CNN F 1 "1K" V 3407 2776 40 0000 C CNN F 2 "~" V 3330 2775 30 0000 C CNN F 3 "~" H 3400 2775 30 0000 C CNN 1 3400 2775 0 -1 -1 0 $EndComp $Comp L R R5 U 1 1 5578837B P 3400 2875 F 0 "R5" V 3550 2675 40 0000 C CNN F 1 "1K" V 3407 2876 40 0000 C CNN F 2 "~" V 3330 2875 30 0000 C CNN F 3 "~" H 3400 2875 30 0000 C CNN 1 3400 2875 0 -1 -1 0 $EndComp Text GLabel 3650 2675 2 39 Input ~ 0 MOSI Text GLabel 3650 2775 2 39 Output ~ 0 MISO Text GLabel 3650 2875 2 39 Input ~ 0 SCK Text GLabel 3150 2975 2 39 Input ~ 0 ~CS Text GLabel 6200 3050 2 39 Output ~ 0 ~CS $Comp L OSC G1 U 1 1 5578967A P 2100 4400 F 0 "G1" H 1950 4200 60 0000 C CNN F 1 "OSC" H 2100 4400 60 0000 C CNN F 2 "" H 2200 4450 60 0000 C CNN F 3 "" H 2200 4450 60 0000 C CNN 1 2100 4400 1 0 0 -1 $EndComp Text GLabel 2600 4500 2 39 Output ~ 0 4MHz Text GLabel 6200 3450 2 39 Input ~ 0 4MHz $Comp L CSMALL C3 U 1 1 5578976E P 1600 4400 F 0 "C3" H 1675 4400 40 0000 L CNN F 1 "10nF" H 1375 4400 40 0000 L CNN F 2 "~" H 1638 4250 30 0000 C CNN F 3 "~" H 1600 4400 60 0000 C CNN 1 1600 4400 1 0 0 -1 $EndComp Wire Wire Line 2600 4250 2600 4000 Wire Wire Line 1600 4000 1600 4300 Wire Wire Line 2600 4000 1600 4000 Connection ~ 1600 4250 $Comp L CSMALL C6 U 1 1 55789A54 P 3150 3175 F 0 "C6" H 3025 3175 30 0000 L CNN F 1 "100nF" H 3225 3175 30 0000 L CNN F 2 "~" H 3150 3175 60 0000 C CNN F 3 "~" H 3150 3175 60 0000 C CNN 1 3150 3175 1 0 0 -1 $EndComp $Comp L GND #PWR01 U 1 1 55789A99 P 3150 3275 F 0 "#PWR01" H 3150 3275 30 0001 C CNN F 1 "GND" H 3150 3205 30 0001 C CNN F 2 "" H 3150 3275 60 0000 C CNN F 3 "" H 3150 3275 60 0000 C CNN 1 3150 3275 1 0 0 -1 $EndComp $Comp L VCC #PWR02 U 1 1 55789AAC P 3150 3075 F 0 "#PWR02" H 3150 3175 30 0001 C CNN F 1 "VCC" H 3150 3175 30 0000 C CNN F 2 "" H 3150 3075 60 0000 C CNN F 3 "" H 3150 3075 60 0000 C CNN 1 3150 3075 0 1 1 0 $EndComp $Comp L GND #PWR03 U 1 1 55789C21 P 3250 2500 F 0 "#PWR03" H 3250 2500 30 0001 C CNN F 1 "GND" H 3250 2430 30 0001 C CNN F 2 "" H 3250 2500 60 0000 C CNN F 3 "" H 3250 2500 60 0000 C CNN 1 3250 2500 1 0 0 -1 $EndComp Wire Wire Line 3150 2475 3250 2475 Wire Wire Line 3250 2475 3250 2500 $Comp L AGND #PWR04 U 1 1 55789C95 P 1750 2500 F 0 "#PWR04" H 1750 2500 40 0001 C CNN F 1 "AGND" H 1750 2430 31 0000 C CNN F 2 "" H 1750 2500 60 0000 C CNN F 3 "" H 1750 2500 60 0000 C CNN 1 1750 2500 1 0 0 -1 $EndComp Wire Wire Line 2000 2475 1750 2475 Wire Wire Line 1750 2475 1750 2500 $Comp L VAA #PWR05 U 1 1 55789CF1 P 1900 2875 F 0 "#PWR05" H 1900 2935 30 0001 C CNN F 1 "VAA" H 1900 2985 30 0000 C CNN F 2 "" H 1900 2875 60 0000 C CNN F 3 "" H 1900 2875 60 0000 C CNN 1 1900 2875 0 -1 -1 0 $EndComp Wire Wire Line 1425 2675 2000 2675 Text GLabel 3525 2500 2 39 Output ~ 0 ~FAULT Wire Wire Line 3150 2575 3400 2575 Wire Wire Line 3400 2575 3400 2500 Wire Wire Line 3400 2500 3525 2500 Text GLabel 2200 3325 2 31 Output ~ 0 ~DRDY $Comp L CSMALL C1 U 1 1 5578A00A P 1550 2775 F 0 "C1" H 1575 2825 30 0000 L CNN F 1 "100nF" H 1575 2725 30 0000 L CNN F 2 "~" H 1550 2775 60 0000 C CNN F 3 "~" H 1550 2775 60 0000 C CNN 1 1550 2775 1 0 0 -1 $EndComp Wire Wire Line 1500 2675 1500 2625 Wire Wire Line 1500 2625 1900 2625 Wire Wire Line 1900 2625 1900 2575 Wire Wire Line 1900 2575 2000 2575 Connection ~ 1500 2675 $Comp L CSMALL C2 U 1 1 5578A488 P 1550 3025 F 0 "C2" H 1425 2975 30 0000 L CNN F 1 "10nF" H 1400 3075 30 0000 L CNN F 2 "~" H 1550 3025 60 0000 C CNN F 3 "~" H 1550 3025 60 0000 C CNN 1 1550 3025 1 0 0 -1 $EndComp $Comp L CSMALL C4 U 1 1 5578A497 P 1700 3025 F 0 "C4" H 1725 2975 30 0000 L CNN F 1 "10nF" H 1725 3075 30 0000 L CNN F 2 "~" H 1700 3025 60 0000 C CNN F 3 "~" H 1700 3025 60 0000 C CNN 1 1700 3025 1 0 0 -1 $EndComp Wire Wire Line 1550 2875 1550 2925 Connection ~ 1550 2875 $Comp L AGND #PWR06 U 1 1 5578A52D P 1550 3125 F 0 "#PWR06" H 1550 3125 40 0001 C CNN F 1 "AGND" H 1550 3055 31 0000 C CNN F 2 "" H 1550 3125 60 0000 C CNN F 3 "" H 1550 3125 60 0000 C CNN 1 1550 3125 1 0 0 -1 $EndComp $Comp L AGND #PWR07 U 1 1 5578A53C P 1700 3125 F 0 "#PWR07" H 1700 3125 40 0001 C CNN F 1 "AGND" H 1700 3055 28 0000 C CNN F 2 "" H 1700 3125 60 0000 C CNN F 3 "" H 1700 3125 60 0000 C CNN 1 1700 3125 1 0 0 -1 $EndComp Wire Wire Line 1700 2925 1700 2675 Connection ~ 1700 2675 Wire Wire Line 2000 2775 1750 2775 Wire Wire Line 1750 2775 1750 2875 Wire Wire Line 1750 2875 1425 2875 Wire Wire Line 2000 3075 2000 3325 Wire Wire Line 2000 3325 2200 3325 $Comp L CSMALL C5 U 1 1 5578A688 P 1900 3175 F 0 "C5" H 1850 3225 30 0000 L CNN F 1 "100nF" H 1775 3100 30 0000 L CNN F 2 "~" H 1900 3175 60 0000 C CNN F 3 "~" H 1900 3175 60 0000 C CNN 1 1900 3175 1 0 0 -1 $EndComp Wire Wire Line 1900 2875 1900 3075 $Comp L AGND #PWR08 U 1 1 5578A6DC P 1900 3275 F 0 "#PWR08" H 1900 3275 40 0001 C CNN F 1 "AGND" H 1900 3205 31 0000 C CNN F 2 "" H 1900 3275 60 0000 C CNN F 3 "" H 1900 3275 60 0000 C CNN 1 1900 3275 1 0 0 -1 $EndComp $Comp L CONN_4 P2 U 1 1 557ACABD P 2625 5325 F 0 "P2" V 2575 5325 50 0000 C CNN F 1 "DISPLAY" V 2675 5325 50 0000 C CNN F 2 "" H 2625 5325 60 0000 C CNN F 3 "" H 2625 5325 60 0000 C CNN 1 2625 5325 0 -1 -1 0 $EndComp Text GLabel 2675 5675 3 39 Input ~ 0 SCL Text GLabel 2775 5675 3 39 BiDi ~ 0 SDA Text GLabel 6200 4200 2 39 Output ~ 0 SCL Text GLabel 6200 4100 2 39 BiDi ~ 0 SDA $Comp L R R1 U 1 1 557ACCD0 P 2075 5325 F 0 "R1" V 2155 5325 40 0000 C CNN F 1 "1K" V 2082 5326 40 0000 C CNN F 2 "~" V 2005 5325 30 0000 C CNN F 3 "~" H 2075 5325 30 0000 C CNN 1 2075 5325 1 0 0 -1 $EndComp $Comp L R R2 U 1 1 557ACCDF P 2275 5325 F 0 "R2" V 2355 5325 40 0000 C CNN F 1 "1K" V 2282 5326 40 0000 C CNN F 2 "~" V 2205 5325 30 0000 C CNN F 3 "~" H 2275 5325 30 0000 C CNN 1 2275 5325 1 0 0 -1 $EndComp $Comp L VCC #PWR09 U 1 1 557ACCEE P 2175 5075 F 0 "#PWR09" H 2175 5175 30 0001 C CNN F 1 "VCC" H 2175 5175 30 0000 C CNN F 2 "" H 2175 5075 60 0000 C CNN F 3 "" H 2175 5075 60 0000 C CNN 1 2175 5075 1 0 0 -1 $EndComp Wire Wire Line 2075 5075 2275 5075 Connection ~ 2175 5075 $Comp L GND #PWR010 U 1 1 557ACD25 P 2475 5675 F 0 "#PWR010" H 2475 5675 30 0001 C CNN F 1 "GND" H 2475 5605 30 0001 C CNN F 2 "" H 2475 5675 60 0000 C CNN F 3 "" H 2475 5675 60 0000 C CNN 1 2475 5675 1 0 0 -1 $EndComp $Comp L VCC #PWR011 U 1 1 557ACD3E P 2575 5675 F 0 "#PWR011" H 2575 5775 30 0001 C CNN F 1 "VCC" H 2575 5775 30 0000 C CNN F 2 "" H 2575 5675 60 0000 C CNN F 3 "" H 2575 5675 60 0000 C CNN 1 2575 5675 -1 0 0 1 $EndComp Text GLabel 2075 5575 3 39 Output ~ 0 SCL Text GLabel 2275 5575 3 39 Output ~ 0 SDA $Comp L GND #PWR012 U 1 1 557ACD7C P 1600 4550 F 0 "#PWR012" H 1600 4550 30 0001 C CNN F 1 "GND" H 1600 4480 30 0001 C CNN F 2 "" H 1600 4550 60 0000 C CNN F 3 "" H 1600 4550 60 0000 C CNN 1 1600 4550 1 0 0 -1 $EndComp Wire Wire Line 1600 4500 1600 4550 Text Notes 1975 5125 3 39 ~ 0 Optional pull-ups $Comp L VCC #PWR013 U 1 1 557ACE1B P 4900 5650 F 0 "#PWR013" H 4900 5750 30 0001 C CNN F 1 "VCC" H 4900 5750 30 0000 C CNN F 2 "" H 4900 5650 60 0000 C CNN F 3 "" H 4900 5650 60 0000 C CNN 1 4900 5650 0 1 1 0 $EndComp $Comp L GND #PWR014 U 1 1 557ACE43 P 4900 5900 F 0 "#PWR014" H 4900 5900 30 0001 C CNN F 1 "GND" H 4900 5830 30 0001 C CNN F 2 "" H 4900 5900 60 0000 C CNN F 3 "" H 4900 5900 60 0000 C CNN 1 4900 5900 1 0 0 -1 $EndComp Wire Wire Line 4900 5850 4900 5900 $Comp L GND #PWR015 U 1 1 557ACF81 P 4300 5375 F 0 "#PWR015" H 4300 5375 30 0001 C CNN F 1 "GND" H 4300 5305 30 0001 C CNN F 2 "" H 4300 5375 60 0000 C CNN F 3 "" H 4300 5375 60 0000 C CNN 1 4300 5375 1 0 0 -1 $EndComp $Comp L VCC #PWR016 U 1 1 557ACFBB P 4300 2325 F 0 "#PWR016" H 4300 2425 30 0001 C CNN F 1 "VCC" H 4300 2425 30 0000 C CNN F 2 "" H 4300 2325 60 0000 C CNN F 3 "" H 4300 2325 60 0000 C CNN 1 4300 2325 1 0 0 -1 $EndComp $Comp L CSMALL C8 U 1 1 557AD351 P 4300 4850 F 0 "C8" H 4325 4900 30 0000 L CNN F 1 "100nF" H 4325 4800 30 0000 L CNN F 2 "~" H 4300 4850 60 0000 C CNN F 3 "~" H 4300 4850 60 0000 C CNN 1 4300 4850 1 0 0 -1 $EndComp $Comp L CSMALL C7 U 1 1 557AD360 P 4175 4850 F 0 "C7" H 4100 4900 30 0000 L CNN F 1 "100nF" H 4025 4800 30 0000 L CNN F 2 "~" H 4175 4850 60 0000 C CNN F 3 "~" H 4175 4850 60 0000 C CNN 1 4175 4850 1 0 0 -1 $EndComp Wire Wire Line 4300 4950 4300 5375 Wire Wire Line 4300 2325 4300 4750 Wire Wire Line 4300 5250 4175 5250 Wire Wire Line 4175 5250 4175 4950 Wire Wire Line 4175 4750 4175 2400 Wire Wire Line 4175 2400 4300 2400 Connection ~ 4300 2700 Connection ~ 4300 2400 Connection ~ 4300 5150 Connection ~ 4300 5250 Text GLabel 6200 4750 2 39 Input ~ 0 ~FAULT Text GLabel 6200 4850 2 39 Input ~ 0 ~DRDY $Comp L CONN_4 P4 U 1 1 557AD632 P 8375 4300 F 0 "P4" V 8325 4300 50 0000 C CNN F 1 "OUTPUT" V 8425 4300 50 0000 C CNN F 2 "" H 8375 4300 60 0000 C CNN F 3 "" H 8375 4300 60 0000 C CNN 1 8375 4300 1 0 0 -1 $EndComp $Comp L BC817-40 Q2 U 1 1 557ADB67 P 7775 4650 F 0 "Q2" H 7775 4501 40 0000 R CNN F 1 "BC817-40" H 7775 4800 40 0000 R CNN F 2 "SOT-23" H 7575 4752 29 0000 C CNN F 3 "" H 7775 4650 60 0000 C CNN 1 7775 4650 1 0 0 -1 $EndComp $Comp L BC817-40 Q1 U 1 1 557ADB78 P 7175 4350 F 0 "Q1" H 7175 4201 40 0000 R CNN F 1 "BC817-40" H 7175 4500 40 0000 R CNN F 2 "SOT-23" H 6975 4452 29 0000 C CNN F 3 "" H 7175 4350 60 0000 C CNN 1 7175 4350 1 0 0 -1 $EndComp $Comp L GND #PWR017 U 1 1 557ADC29 P 7275 4550 F 0 "#PWR017" H 7275 4550 30 0001 C CNN F 1 "GND" H 7275 4480 30 0001 C CNN F 2 "" H 7275 4550 60 0000 C CNN F 3 "" H 7275 4550 60 0000 C CNN 1 7275 4550 1 0 0 -1 $EndComp $Comp L GND #PWR018 U 1 1 557ADC38 P 7875 4850 F 0 "#PWR018" H 7875 4850 30 0001 C CNN F 1 "GND" H 7875 4780 30 0001 C CNN F 2 "" H 7875 4850 60 0000 C CNN F 3 "" H 7875 4850 60 0000 C CNN 1 7875 4850 1 0 0 -1 $EndComp Wire Wire Line 7275 4150 8025 4150 $Comp L VCC #PWR019 U 1 1 557ADCAC P 2600 4000 F 0 "#PWR019" H 2600 4100 30 0001 C CNN F 1 "VCC" H 2600 4100 30 0000 C CNN F 2 "" H 2600 4000 60 0000 C CNN F 3 "" H 2600 4000 60 0000 C CNN 1 2600 4000 1 0 0 -1 $EndComp Wire Wire Line 7875 4450 8025 4450 Wire Wire Line 6975 4650 7575 4650 $Comp L R R11 U 1 1 557ADF6C P 6725 4550 F 0 "R11" V 6805 4550 40 0000 C CNN F 1 "1K" V 6732 4551 40 0000 C CNN F 2 "~" V 6655 4550 30 0000 C CNN F 3 "~" H 6725 4550 30 0000 C CNN 1 6725 4550 0 -1 -1 0 $EndComp $Comp L R R12 U 1 1 557ADF8A P 6725 4650 F 0 "R12" V 6625 4650 40 0000 C CNN F 1 "1K" V 6732 4651 40 0000 C CNN F 2 "~" V 6655 4650 30 0000 C CNN F 3 "~" H 6725 4650 30 0000 C CNN 1 6725 4650 0 -1 -1 0 $EndComp Wire Wire Line 6200 4550 6475 4550 Wire Wire Line 6200 4650 6475 4650 Wire Wire Line 8025 4250 8025 4350 Wire Wire Line 8025 4300 7925 4300 Wire Wire Line 7925 4300 7925 4250 Connection ~ 8025 4300 $Comp L SW_PUSH SW1 U 1 1 557AE0DE P 6200 5600 F 0 "SW1" H 6350 5710 50 0000 C CNN F 1 "UP" H 6200 5520 50 0000 C CNN F 2 "~" H 6200 5600 60 0000 C CNN F 3 "~" H 6200 5600 60 0000 C CNN 1 6200 5600 1 0 0 -1 $EndComp $Comp L +5V #PWR020 U 1 1 557AE1CE P 7925 4250 F 0 "#PWR020" H 7925 4340 20 0001 C CNN F 1 "+5V" H 7925 4340 30 0000 C CNN F 2 "" H 7925 4250 60 0000 C CNN F 3 "" H 7925 4250 60 0000 C CNN 1 7925 4250 1 0 0 -1 $EndComp $Comp L SW_PUSH SW2 U 1 1 557AE207 P 6200 5900 F 0 "SW2" H 6350 6010 50 0000 C CNN F 1 "DOWN" H 6200 5820 50 0000 C CNN F 2 "~" H 6200 5900 60 0000 C CNN F 3 "~" H 6200 5900 60 0000 C CNN 1 6200 5900 1 0 0 -1 $EndComp $Comp L SW_PUSH SW4 U 1 1 557AE220 P 7350 5600 F 0 "SW4" H 7500 5710 50 0000 C CNN F 1 "LEFT" H 7350 5520 50 0000 C CNN F 2 "~" H 7350 5600 60 0000 C CNN F 3 "~" H 7350 5600 60 0000 C CNN 1 7350 5600 1 0 0 -1 $EndComp $Comp L SW_PUSH SW3 U 1 1 557AE22F P 7350 5900 F 0 "SW3" H 7500 6010 50 0000 C CNN F 1 "RIGHT" H 7350 5820 50 0000 C CNN F 2 "~" H 7350 5900 60 0000 C CNN F 3 "~" H 7350 5900 60 0000 C CNN 1 7350 5900 1 0 0 -1 $EndComp $Comp L R R6 U 1 1 557AE24A P 6450 4950 F 0 "R6" V 6450 5050 40 0000 C CNN F 1 "10K" V 6450 4900 40 0000 C CNN F 2 "~" V 6380 4950 30 0000 C CNN F 3 "~" H 6450 4950 30 0000 C CNN 1 6450 4950 0 -1 -1 0 $EndComp $Comp L R R7 U 1 1 557AE263 P 6450 5050 F 0 "R7" V 6450 5150 40 0000 C CNN F 1 "10K" V 6450 5000 40 0000 C CNN F 2 "~" V 6380 5050 30 0000 C CNN F 3 "~" H 6450 5050 30 0000 C CNN 1 6450 5050 0 -1 -1 0 $EndComp $Comp L R R8 U 1 1 557AE272 P 6450 5150 F 0 "R8" V 6450 5250 40 0000 C CNN F 1 "10K" V 6450 5100 40 0000 C CNN F 2 "~" V 6380 5150 30 0000 C CNN F 3 "~" H 6450 5150 30 0000 C CNN 1 6450 5150 0 -1 -1 0 $EndComp $Comp L R R9 U 1 1 557AE281 P 6450 5250 F 0 "R9" V 6450 5350 40 0000 C CNN F 1 "10K" V 6450 5200 40 0000 C CNN F 2 "~" V 6380 5250 30 0000 C CNN F 3 "~" H 6450 5250 30 0000 C CNN 1 6450 5250 0 -1 -1 0 $EndComp $Comp L R R13 U 1 1 557AE2F4 P 7200 4950 F 0 "R13" V 7200 5050 40 0000 C CNN F 1 "10K" V 7200 4900 40 0000 C CNN F 2 "~" V 7130 4950 30 0000 C CNN F 3 "~" H 7200 4950 30 0000 C CNN 1 7200 4950 0 -1 -1 0 $EndComp $Comp L R R14 U 1 1 557AE30D P 7200 5050 F 0 "R14" V 7200 5150 40 0000 C CNN F 1 "10K" V 7200 5000 40 0000 C CNN F 2 "~" V 7130 5050 30 0000 C CNN F 3 "~" H 7200 5050 30 0000 C CNN 1 7200 5050 0 -1 -1 0 $EndComp $Comp L R R15 U 1 1 557AE330 P 7200 5150 F 0 "R15" V 7200 5250 40 0000 C CNN F 1 "10K" V 7200 5100 40 0000 C CNN F 2 "~" V 7130 5150 30 0000 C CNN F 3 "~" H 7200 5150 30 0000 C CNN 1 7200 5150 0 -1 -1 0 $EndComp $Comp L R R16 U 1 1 557AE353 P 7200 5250 F 0 "R16" V 7200 5350 40 0000 C CNN F 1 "10K" V 7200 5200 40 0000 C CNN F 2 "~" V 7130 5250 30 0000 C CNN F 3 "~" H 7200 5250 30 0000 C CNN 1 7200 5250 0 -1 -1 0 $EndComp Wire Wire Line 6975 4550 6975 4350 Wire Wire Line 7450 5250 7450 4850 $Comp L VCC #PWR021 U 1 1 557AE3F4 P 7450 4850 F 0 "#PWR021" H 7450 4950 30 0001 C CNN F 1 "VCC" H 7450 4950 30 0000 C CNN F 2 "" H 7450 4850 60 0000 C CNN F 3 "" H 7450 4850 60 0000 C CNN 1 7450 4850 1 0 0 -1 $EndComp Connection ~ 7450 4950 Connection ~ 7450 5050 Connection ~ 7450 5150 Wire Wire Line 6700 4950 6950 4950 Wire Wire Line 6700 5050 6950 5050 Wire Wire Line 6700 5150 6950 5150 Wire Wire Line 6700 5250 6950 5250 Connection ~ 6750 4950 Connection ~ 6800 5050 Wire Wire Line 6750 4950 6750 5600 Wire Wire Line 6750 5600 6500 5600 Wire Wire Line 6800 5050 6800 5900 Wire Wire Line 6800 5900 6500 5900 Wire Wire Line 6850 5150 6850 5900 Wire Wire Line 6850 5900 7050 5900 Connection ~ 6850 5150 Wire Wire Line 6900 5250 6900 5600 Wire Wire Line 6900 5600 7050 5600 Connection ~ 6900 5250 Wire Wire Line 5900 5600 5900 6100 Wire Wire Line 7650 5600 7650 6100 $Comp L GND #PWR022 U 1 1 557AE758 P 5900 6100 F 0 "#PWR022" H 5900 6100 30 0001 C CNN F 1 "GND" H 5900 6030 30 0001 C CNN F 2 "" H 5900 6100 60 0000 C CNN F 3 "" H 5900 6100 60 0000 C CNN 1 5900 6100 1 0 0 -1 $EndComp $Comp L GND #PWR023 U 1 1 557AE767 P 7650 6100 F 0 "#PWR023" H 7650 6100 30 0001 C CNN F 1 "GND" H 7650 6030 30 0001 C CNN F 2 "" H 7650 6100 60 0000 C CNN F 3 "" H 7650 6100 60 0000 C CNN 1 7650 6100 1 0 0 -1 $EndComp Connection ~ 7650 5900 Connection ~ 5900 5900 $Comp L R R10 U 1 1 557AE8B7 P 6525 2950 F 0 "R10" V 6605 2950 40 0000 C CNN F 1 "1K" V 6532 2951 40 0000 C CNN F 2 "~" V 6455 2950 30 0000 C CNN F 3 "~" H 6525 2950 30 0000 C CNN 1 6525 2950 0 -1 -1 0 $EndComp $Comp L SPEAKER SP1 U 1 1 557AE982 P 7075 3050 F 0 "SP1" H 6975 3300 70 0000 C CNN F 1 "PIEZO" H 6975 2800 70 0000 C CNN F 2 "~" H 7075 3050 60 0000 C CNN F 3 "~" H 7075 3050 60 0000 C CNN 1 7075 3050 1 0 0 -1 $EndComp Wire Wire Line 6200 2950 6275 2950 $Comp L GND #PWR024 U 1 1 557AEA6D P 6650 3200 F 0 "#PWR024" H 6650 3200 30 0001 C CNN F 1 "GND" H 6650 3130 30 0001 C CNN F 2 "" H 6650 3200 60 0000 C CNN F 3 "" H 6650 3200 60 0000 C CNN 1 6650 3200 1 0 0 -1 $EndComp Wire Wire Line 6775 3150 6650 3150 Wire Wire Line 6650 3150 6650 3200 $Comp L NCP1117ST33T3G U3 U 1 1 557AF494 P 8250 3050 F 0 "U3" H 8250 3300 40 0000 C CNN F 1 "NCP1117ST33T3G" H 8250 3250 40 0000 C CNN F 2 "" H 8250 3050 60 0000 C CNN F 3 "" H 8250 3050 60 0000 C CNN 1 8250 3050 1 0 0 -1 $EndComp $Comp L BARREL_JACK CON1 U 1 1 557AF4B7 P 8350 2400 F 0 "CON1" H 8350 2650 60 0000 C CNN F 1 "5V_IN" H 8350 2200 60 0000 C CNN F 2 "" H 8350 2400 60 0000 C CNN F 3 "" H 8350 2400 60 0000 C CNN 1 8350 2400 -1 0 0 1 $EndComp Wire Wire Line 8050 2500 7750 2500 Wire Wire Line 7750 2500 7750 3000 Wire Wire Line 7750 3000 7850 3000 $Comp L GND #PWR025 U 1 1 557AF521 P 7600 2500 F 0 "#PWR025" H 7600 2500 30 0001 C CNN F 1 "GND" H 7600 2430 30 0001 C CNN F 2 "" H 7600 2500 60 0000 C CNN F 3 "" H 7600 2500 60 0000 C CNN 1 7600 2500 1 0 0 -1 $EndComp Wire Wire Line 8050 2300 8050 2400 Wire Wire Line 8050 2350 7600 2350 Wire Wire Line 7600 2350 7600 2500 Connection ~ 8050 2350 $Comp L +5V #PWR026 U 1 1 557AF5D7 P 7750 2500 F 0 "#PWR026" H 7750 2590 20 0001 C CNN F 1 "+5V" H 7750 2590 30 0000 C CNN F 2 "" H 7750 2500 60 0000 C CNN F 3 "" H 7750 2500 60 0000 C CNN 1 7750 2500 1 0 0 -1 $EndComp Connection ~ 7750 2500 $Comp L GND #PWR027 U 1 1 557AF5F0 P 8400 3475 F 0 "#PWR027" H 8400 3475 30 0001 C CNN F 1 "GND" H 8400 3405 30 0001 C CNN F 2 "" H 8400 3475 60 0000 C CNN F 3 "" H 8400 3475 60 0000 C CNN 1 8400 3475 1 0 0 -1 $EndComp Wire Wire Line 8650 3400 7850 3400 Connection ~ 8250 3400 Connection ~ 7850 3000 Connection ~ 8650 3000 Wire Wire Line 8650 3000 8850 3000 $Comp L VCC #PWR028 U 1 1 557AF736 P 8850 3000 F 0 "#PWR028" H 8850 3100 30 0001 C CNN F 1 "VCC" H 8850 3100 30 0000 C CNN F 2 "" H 8850 3000 60 0000 C CNN F 3 "" H 8850 3000 60 0000 C CNN 1 8850 3000 1 0 0 -1 $EndComp $Comp L CP1 C9 U 1 1 557AF74A P 7850 3200 F 0 "C9" H 7900 3300 50 0000 L CNN F 1 "10uF" H 7900 3100 50 0000 L CNN F 2 "~" H 7850 3200 60 0000 C CNN F 3 "~" H 7850 3200 60 0000 C CNN 1 7850 3200 1 0 0 -1 $EndComp $Comp L CP1 C10 U 1 1 557AF759 P 8650 3200 F 0 "C10" H 8700 3300 50 0000 L CNN F 1 "22uF" H 8700 3100 50 0000 L CNN F 2 "~" H 8650 3200 60 0000 C CNN F 3 "~" H 8650 3200 60 0000 C CNN 1 8650 3200 1 0 0 -1 $EndComp NoConn ~ 6200 2400 NoConn ~ 6200 2500 NoConn ~ 6200 2600 NoConn ~ 6200 2700 NoConn ~ 6200 2850 NoConn ~ 6200 3550 NoConn ~ 6200 3700 NoConn ~ 6200 3800 NoConn ~ 6200 3900 NoConn ~ 6200 4000 NoConn ~ 6200 4400 Wire Wire Line 2000 2875 1900 2875 Connection ~ 1900 2875 Connection ~ 1550 2675 $Comp L PWR_FLAG #FLG029 U 1 1 557AFCB2 P 7900 2500 F 0 "#FLG029" H 7900 2595 30 0001 C CNN F 1 "PWR_FLAG" H 7900 2680 30 0000 C CNN F 2 "" H 7900 2500 60 0000 C CNN F 3 "" H 7900 2500 60 0000 C CNN 1 7900 2500 -1 0 0 1 $EndComp $Comp L PWR_FLAG #FLG030 U 1 1 557AFCC1 P 7600 2350 F 0 "#FLG030" H 7600 2445 30 0001 C CNN F 1 "PWR_FLAG" H 7600 2530 30 0000 C CNN F 2 "" H 7600 2350 60 0000 C CNN F 3 "" H 7600 2350 60 0000 C CNN 1 7600 2350 1 0 0 -1 $EndComp Connection ~ 7900 2500 Connection ~ 7600 2350 $Comp L VAA #PWR031 U 1 1 557AFD7B P 8750 3000 F 0 "#PWR031" H 8750 3060 30 0001 C CNN F 1 "VAA" H 8750 3110 30 0000 C CNN F 2 "" H 8750 3000 60 0000 C CNN F 3 "" H 8750 3000 60 0000 C CNN 1 8750 3000 1 0 0 -1 $EndComp $Comp L AGND #PWR032 U 1 1 557AFD8A P 8100 3475 F 0 "#PWR032" H 8100 3475 40 0001 C CNN F 1 "AGND" H 8100 3405 50 0000 C CNN F 2 "" H 8100 3475 60 0000 C CNN F 3 "" H 8100 3475 60 0000 C CNN 1 8100 3475 1 0 0 -1 $EndComp Wire Wire Line 8100 3475 8100 3400 Connection ~ 8100 3400 Wire Wire Line 8400 3400 8400 3475 Connection ~ 8400 3400 Wire Wire Line 8250 3300 8250 3400 Connection ~ 8750 3000 $Comp L CONN_1 P1 U 1 1 557B51F1 P 1275 2675 F 0 "P1" H 1355 2675 40 0000 L CNN F 1 "T-" H 1275 2730 30 0001 C CNN F 2 "" H 1275 2675 60 0000 C CNN F 3 "" H 1275 2675 60 0000 C CNN 1 1275 2675 -1 0 0 1 $EndComp $Comp L CONN_1 P5 U 1 1 557B5200 P 1275 2875 F 0 "P5" H 1355 2875 40 0000 L CNN F 1 "T+" H 1275 2930 30 0001 C CNN F 2 "" H 1275 2875 60 0000 C CNN F 3 "" H 1275 2875 60 0000 C CNN 1 1275 2875 -1 0 0 1 $EndComp $EndSCHEMATC