EESchema Schematic File Version 4 EELAYER 30 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L oni:mbedLPC1768 U2 U 1 1 6196FB00 P 7100 3200 F 0 "U2" H 7100 4415 50 0000 C CNN F 1 "mbedLPC1768" H 7100 4324 50 0000 C CNN F 2 "Package_DIP:DIP-40_W25.4mm_Socket_LongPads" V 7100 3200 50 0001 C CNN F 3 "http://mbed.org/media/uploads/chris/mbed-005.1.pdf" H 7000 3850 50 0001 C CNN 1 7100 3200 1 0 0 -1 $EndComp $Comp L power:GND #PWR06 U 1 1 61970467 P 6400 2250 F 0 "#PWR06" H 6400 2000 50 0001 C CNN F 1 "GND" H 6405 2077 50 0000 C CNN F 2 "" H 6400 2250 50 0001 C CNN F 3 "" H 6400 2250 50 0001 C CNN 1 6400 2250 1 0 0 -1 $EndComp $Comp L power:+5V #PWR07 U 1 1 61970761 P 6500 2150 F 0 "#PWR07" H 6500 2000 50 0001 C CNN F 1 "+5V" H 6515 2323 50 0000 C CNN F 2 "" H 6500 2150 50 0001 C CNN F 3 "" H 6500 2150 50 0001 C CNN 1 6500 2150 1 0 0 -1 $EndComp $Comp L power:+3V3 #PWR08 U 1 1 61970D82 P 7700 2250 F 0 "#PWR08" H 7700 2100 50 0001 C CNN F 1 "+3V3" H 7715 2423 50 0000 C CNN F 2 "" H 7700 2250 50 0001 C CNN F 3 "" H 7700 2250 50 0001 C CNN 1 7700 2250 1 0 0 -1 $EndComp Wire Wire Line 6500 2150 6500 2350 Wire Wire Line 6500 2350 6600 2350 Wire Wire Line 6600 2250 6400 2250 Wire Wire Line 7600 2250 7700 2250 Text Label 6600 2550 2 50 ~ 0 ~RESET $Comp L power:+5V #PWR09 U 1 1 6197351B P 9050 2050 F 0 "#PWR09" H 9050 1900 50 0001 C CNN F 1 "+5V" H 9065 2223 50 0000 C CNN F 2 "" H 9050 2050 50 0001 C CNN F 3 "" H 9050 2050 50 0001 C CNN 1 9050 2050 1 0 0 -1 $EndComp $Comp L power:+3V3 #PWR013 U 1 1 619737D1 P 10100 2050 F 0 "#PWR013" H 10100 1900 50 0001 C CNN F 1 "+3V3" H 10115 2223 50 0000 C CNN F 2 "" H 10100 2050 50 0001 C CNN F 3 "" H 10100 2050 50 0001 C CNN 1 10100 2050 1 0 0 -1 $EndComp $Comp L Device:C C5 U 1 1 61973E99 P 9050 2200 F 0 "C5" H 9165 2246 50 0000 L CNN F 1 "100n" H 9165 2155 50 0000 L CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 9088 2050 50 0001 C CNN F 3 "~" H 9050 2200 50 0001 C CNN 1 9050 2200 1 0 0 -1 $EndComp Wire Wire Line 9050 2050 9300 2050 Connection ~ 9050 2050 $Comp L power:GND #PWR012 U 1 1 61974E13 P 9600 2350 F 0 "#PWR012" H 9600 2100 50 0001 C CNN F 1 "GND" H 9605 2177 50 0000 C CNN F 2 "" H 9600 2350 50 0001 C CNN F 3 "" H 9600 2350 50 0001 C CNN 1 9600 2350 1 0 0 -1 $EndComp Wire Wire Line 9050 2350 9600 2350 Connection ~ 9600 2350 $Comp L Device:C C6 U 1 1 619770F1 P 10100 2200 F 0 "C6" H 10215 2246 50 0000 L CNN F 1 "10u" H 10215 2155 50 0000 L CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 10138 2050 50 0001 C CNN F 3 "~" H 10100 2200 50 0001 C CNN 1 10100 2200 1 0 0 -1 $EndComp Connection ~ 10100 2050 $Comp L Regulator_Linear:LM2937xMP U3 U 1 1 61978287 P 9600 2050 F 0 "U3" H 9600 2292 50 0000 C CNN F 1 "LM2937IMP" H 9600 2201 50 0000 C CNN F 2 "Package_TO_SOT_SMD:SOT-223-3_TabPin2" H 9600 2275 50 0001 C CIN F 3 "http://www.ti.com/lit/ds/symlink/lm2937.pdf" H 9600 2000 50 0001 C CNN 1 9600 2050 1 0 0 -1 $EndComp Wire Wire Line 9900 2050 10100 2050 Wire Wire Line 9600 2350 10100 2350 $Comp L MCU_Microchip_ATmega:ATmega328P-AU U1 U 1 1 6197A890 P 3700 3200 F 0 "U1" H 3700 1611 50 0000 C CNN F 1 "ATmega328P-AU" H 3700 1520 50 0000 C CNN F 2 "Package_QFP:TQFP-32_7x7mm_P0.8mm" H 3700 3200 50 0001 C CIN F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/ATmega328_P%20AVR%20MCU%20with%20picoPower%20Technology%20Data%20Sheet%2040001984A.pdf" H 3700 3200 50 0001 C CNN 1 3700 3200 1 0 0 -1 $EndComp $Comp L Device:Crystal Y1 U 1 1 6197B9BD P 4850 2750 F 0 "Y1" V 4804 2881 50 0000 L CNN F 1 "16MHz" V 4895 2881 50 0000 L CNN F 2 "Crystal:Crystal_SMD_HC49-SD" H 4850 2750 50 0001 C CNN F 3 "~" H 4850 2750 50 0001 C CNN 1 4850 2750 0 1 1 0 $EndComp $Comp L Device:C C3 U 1 1 6197CA85 P 5300 2600 F 0 "C3" V 5048 2600 50 0000 C CNN F 1 "22p" V 5139 2600 50 0000 C CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 5338 2450 50 0001 C CNN F 3 "~" H 5300 2600 50 0001 C CNN 1 5300 2600 0 1 1 0 $EndComp $Comp L 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L Device:LED D2 U 1 1 619C3222 P 10200 3400 F 0 "D2" V 10239 3282 50 0000 R CNN F 1 "RED" V 10148 3282 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric_Castellated" H 10200 3400 50 0001 C CNN F 3 "~" H 10200 3400 50 0001 C CNN 1 10200 3400 0 -1 -1 0 $EndComp $Comp L Device:R R3 U 1 1 619C3240 P 10200 3700 F 0 "R3" H 10270 3746 50 0000 L CNN F 1 "1k" H 10270 3655 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric" V 10130 3700 50 0001 C CNN F 3 "~" H 10200 3700 50 0001 C CNN 1 10200 3700 1 0 0 -1 $EndComp $Comp L power:GND #PWR0109 U 1 1 619C324A P 10200 3850 F 0 "#PWR0109" H 10200 3600 50 0001 C CNN F 1 "GND" H 10205 3677 50 0000 C CNN F 2 "" H 10200 3850 50 0001 C CNN F 3 "" H 10200 3850 50 0001 C CNN 1 10200 3850 1 0 0 -1 $EndComp Text Label 10200 3250 0 50 ~ 0 LASER_ON Text Label 7600 3150 0 50 ~ 0 USB+ Text Label 7600 3050 0 50 ~ 0 USB- Wire Wire Line 4750 2200 4650 2200 Wire Wire Line 4650 2200 4650 2300 Wire Wire Line 4650 2300 4300 2300 Wire Wire Line 4750 2300 4650 2300 Connection 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5650 5200 50 0001 C CNN F 3 "" H 5650 5200 50 0001 C CNN 1 5650 5200 1 0 0 -1 $EndComp $Comp L power:+5V #PWR0111 U 1 1 619C7037 P 5150 5200 F 0 "#PWR0111" H 5150 5050 50 0001 C CNN F 1 "+5V" H 5165 5373 50 0000 C CNN F 2 "" H 5150 5200 50 0001 C CNN F 3 "" H 5150 5200 50 0001 C CNN 1 5150 5200 1 0 0 -1 $EndComp Wire Wire Line 5350 5450 5350 5200 Wire Wire Line 5150 5450 5150 5200 Connection ~ 5150 5200 $Comp L Device:C C11 U 1 1 619CB730 P 4300 5750 F 0 "C11" H 4415 5796 50 0000 L CNN F 1 "100n" H 4415 5705 50 0000 L CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 4338 5600 50 0001 C CNN F 3 "~" H 4300 5750 50 0001 C CNN 1 4300 5750 0 -1 -1 0 $EndComp $Comp L power:GND #PWR0112 U 1 1 619CC458 P 4150 5750 F 0 "#PWR0112" H 4150 5500 50 0001 C CNN F 1 "GND" H 4155 5577 50 0000 C CNN F 2 "" H 4150 5750 50 0001 C CNN F 3 "" H 4150 5750 50 0001 C CNN 1 4150 5750 1 0 0 -1 $EndComp Text Label 4450 6050 2 50 ~ 0 USB+ Text Label 4450 6150 2 50 ~ 0 USB- $Comp L power:GND #PWR0113 U 1 1 619CD048 P 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"~" H 5000 5200 50 0001 C CNN 1 5000 5200 0 -1 -1 0 $EndComp $Comp L power:GND #PWR0114 U 1 1 619F109A P 4850 5200 F 0 "#PWR0114" H 4850 4950 50 0001 C CNN F 1 "GND" H 4855 5027 50 0000 C CNN F 2 "" H 4850 5200 50 0001 C CNN F 3 "" H 4850 5200 50 0001 C CNN 1 4850 5200 1 0 0 -1 $EndComp Connection ~ 5450 2900 $Comp L MCU_Module:Arduino_Nano_v3.x A1 U 1 1 61A22618 P 2550 6100 F 0 "A1" H 2550 5011 50 0000 C CNN F 1 "Arduino_Nano_v3.x" H 2550 4920 50 0000 C CNN F 2 "Module:Arduino_Nano" H 2550 6100 50 0001 C CIN F 3 "http://www.mouser.com/pdfdocs/Gravitech_Arduino_Nano3_0.pdf" H 2550 6100 50 0001 C CNN 1 2550 6100 1 0 0 -1 $EndComp Text Label 3050 5500 0 50 ~ 0 ~RESET Text Label 3050 5600 0 50 ~ 0 ~RESET $Comp L power:GND #PWR0115 U 1 1 61A25429 P 2650 7100 F 0 "#PWR0115" H 2650 6850 50 0001 C CNN F 1 "GND" H 2655 6927 50 0000 C CNN F 2 "" H 2650 7100 50 0001 C CNN F 3 "" H 2650 7100 50 0001 C CNN 1 2650 7100 1 0 0 -1 $EndComp Wire Wire Line 2650 7100 2550 7100 Connection ~ 2650 7100 $Comp L power:+3V3 #PWR0117 U 1 1 61A26E4D P 2650 5100 F 0 "#PWR0117" H 2650 4950 50 0001 C CNN F 1 "+3V3" H 2665 5273 50 0000 C CNN F 2 "" H 2650 5100 50 0001 C CNN F 3 "" H 2650 5100 50 0001 C CNN 1 2650 5100 1 0 0 -1 $EndComp Text Label 3050 6400 0 50 ~ 0 EXHAUST_ENABLE Text Label 2050 5800 2 50 ~ 0 Y_STEP Text Label 2050 6100 2 50 ~ 0 Y_DIR Text Label 2050 5700 2 50 ~ 0 X_STEP Text Label 2050 6000 2 50 ~ 0 X_DIR Text Label 1800 7200 0 50 ~ 0 LASER_ENABLE_2 Text Label 1300 7200 2 50 ~ 0 LASER_ON Text Label 2050 6300 2 50 ~ 0 STEPPER_ENABLE Text Label 2050 6400 2 50 ~ 0 X_HOME Text Label 1100 6400 2 50 ~ 0 LASER_PWM Text Label 2050 6500 2 50 ~ 0 Y_HOME $Comp L power:+5V #PWR0116 U 1 1 61A26A3D P 2750 5100 F 0 "#PWR0116" H 2750 4950 50 0001 C CNN F 1 "+5V" H 2765 5273 50 0000 C CNN F 2 "" H 2750 5100 50 0001 C CNN F 3 "" H 2750 5100 50 0001 C CNN 1 2750 5100 1 0 0 -1 $EndComp $Comp L Device:Jumper_NC_Dual JP2 U 1 1 61A768D0 P 1550 7200 F 0 "JP2" H 1550 7347 50 0000 C CNN F 1 "LASER_ON_SELECT" H 1550 7438 50 0000 C CNN F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 1550 7200 50 0001 C CNN F 3 "~" H 1550 7200 50 0001 C CNN 1 1550 7200 -1 0 0 1 $EndComp $Comp L Transistor_FET:2N7002 Q1 U 1 1 61A7AFCE P 1350 6600 F 0 "Q1" H 1555 6646 50 0000 L CNN F 1 "2N7002" H 1555 6555 50 0000 L CNN F 2 "Package_TO_SOT_SMD:SOT-23" H 1550 6525 50 0001 L CIN F 3 "https://www.onsemi.com/pub/Collateral/NDS7002A-D.PDF" H 1350 6600 50 0001 L CNN 1 1350 6600 -1 0 0 -1 $EndComp $Comp L power:GND #PWR0118 U 1 1 61A7FC4E P 1250 6800 F 0 "#PWR0118" H 1250 6550 50 0001 C CNN F 1 "GND" H 1255 6627 50 0000 C CNN F 2 "" H 1250 6800 50 0001 C CNN F 3 "" H 1250 6800 50 0001 C CNN 1 1250 6800 1 0 0 -1 $EndComp Wire Wire Line 2050 6600 1550 6600 $Comp L Device:R R5 U 1 1 61A847C3 P 1250 6250 F 0 "R5" H 1320 6296 50 0000 L CNN F 1 "1k" H 1320 6205 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric" V 1180 6250 50 0001 C CNN F 3 "~" H 1250 6250 50 0001 C CNN 1 1250 6250 -1 0 0 1 $EndComp $Comp L power:+3V3 #PWR0119 U 1 1 61A8505D P 1250 6100 F 0 "#PWR0119" H 1250 5950 50 0001 C CNN F 1 "+3V3" H 1265 6273 50 0000 C CNN F 2 "" H 1250 6100 50 0001 C CNN F 3 "" H 1250 6100 50 0001 C CNN 1 1250 6100 1 0 0 -1 $EndComp Wire Wire Line 1250 6400 1100 6400 Connection ~ 1250 6400 $Comp L power:+5V #PWR0120 U 1 1 61A9F063 P 3100 2000 F 0 "#PWR0120" H 3100 1850 50 0001 C CNN F 1 "+5V" H 3115 2173 50 0000 C CNN F 2 "" H 3100 2000 50 0001 C CNN F 3 "" H 3100 2000 50 0001 C CNN 1 3100 2000 1 0 0 -1 $EndComp Wire Wire Line 1550 7100 1550 6700 Wire Wire Line 1550 6700 2050 6700 $EndSCHEMATC