EESchema Schematic File Version 1 LIBS:./crystalosc,./atmega8x,power,device,conn,linear,regul,74xx,cmos4000,adc-dac,memory,xilinx,special,microcontrollers,dsp,microchip,analog_switches,motorola,texas,intel,audio,interface,digital-audio,philips,display,cypress,siliconi,contrib,valves EELAYER 23 0 EELAYER END $Descr A4 11700 8267 Sheet 1 1 Title "CNC touchprobe" Date "27 jul 2009" Rev "1" Comp "Copyright (c) 2009 Michael Buesch" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Wire Wire Line 1900 3550 2750 3550 Wire Wire Line 4050 1500 4050 1450 Wire Wire Line 8100 3450 8150 3450 Wire Wire Line 10400 5350 10400 3450 Wire Wire Line 5150 4150 9000 4150 Wire Wire Line 5150 4050 9100 4050 Wire Wire Line 5150 3950 9200 3950 Wire Wire Line 5150 3850 9300 3850 Wire Wire Line 6200 1700 6250 1700 Wire Wire Line 6500 2050 5400 2050 Wire Wire Line 6500 2050 6500 1800 Wire Wire Line 6500 1800 6200 1800 Wire Wire Line 5150 3250 5250 3250 Wire Wire Line 5250 3250 5250 1700 Wire Wire Line 5250 1700 5400 1700 Connection ~ 5250 4450 Wire Wire Line 5150 4450 5350 4450 Wire Wire Line 5350 4450 5350 1900 Wire Wire Line 5350 1900 5400 1900 Wire Wire Line 3850 1950 3850 2050 Wire Wire Line 4150 5250 4150 5350 Wire Wire Line 3500 6250 3550 6250 Connection ~ 4650 6250 Wire Wire Line 4550 6250 4950 6250 Connection ~ 5250 6550 Wire Wire Line 5150 6550 5250 6550 Wire Wire Line 5850 5800 5900 5800 Connection ~ 5250 5450 Wire Wire Line 5250 5450 5350 5450 Wire Wire Line 5250 4450 5250 6050 Connection ~ 6100 3950 Wire Wire Line 6100 3950 6100 4250 Connection ~ 5700 4150 Wire Wire Line 5700 4150 5700 4250 Wire Wire Line 9300 5100 9000 5100 Wire Wire Line 9000 5100 9000 4150 Wire Wire Line 10400 5100 10300 5100 Wire Wire Line 7550 2450 6350 2450 Wire Wire Line 6350 2450 6350 3150 Wire Wire Line 7850 2250 7850 2150 Wire Wire Line 8000 1950 7850 1950 Wire Wire Line 7850 1950 7850 1850 Connection ~ 10400 4200 Wire Wire Line 10400 4200 10300 4200 Connection ~ 10400 3850 Wire Wire Line 6100 4750 6100 4800 Wire Wire Line 9200 3950 9200 4200 Wire Wire Line 9200 4200 9300 4200 Wire Wire Line 10400 4550 10300 4550 Wire Wire Line 10400 3850 10300 3850 Wire Wire Line 9300 4550 9100 4550 Wire Wire Line 9100 4550 9100 4050 Wire Wire Line 5900 4800 5900 4750 Wire Wire Line 6300 4800 6300 4750 Connection ~ 10400 4550 Wire Wire Line 6350 3150 5150 3150 Wire Wire Line 7850 2150 8000 2150 Wire Wire Line 7850 1250 7850 1350 Wire Wire Line 7850 2750 7850 2650 Connection ~ 10400 5100 Wire Wire Line 5700 4800 5700 4750 Wire Wire Line 5900 4050 5900 4250 Connection ~ 5900 4050 Wire Wire Line 6300 3850 6300 4250 Connection ~ 6300 3850 Wire Wire Line 5250 5800 5350 5800 Connection ~ 5250 5800 Wire Wire Line 5750 5450 5950 5450 Wire Wire Line 5250 6450 5250 6650 Wire Wire Line 4650 6250 4650 6550 Wire Wire Line 3950 6250 4050 6250 Wire Wire Line 3750 5250 3750 5350 Wire Wire Line 4250 1950 4250 2050 Wire Wire Line 5400 1800 5300 1800 Wire Wire Line 5300 1800 5300 3350 Wire Wire Line 5300 3350 5150 3350 Wire Wire Line 5400 2050 5400 3150 Connection ~ 5400 3150 Wire Wire Line 6200 1900 6300 1900 Wire Wire Line 5150 2850 5700 2850 Wire Wire Line 6200 2850 10400 2850 Wire Wire Line 10400 2850 10400 3050 Wire Wire Line 6700 3450 5150 3450 Wire Wire Line 6700 3150 6650 3150 Wire Wire Line 4050 1050 4050 1000 $Comp L CONNECTOR P1 U 1 1 4A6DCDA3 P 1900 3550 F 0 "P1" H 2250 3650 70 0000 C C F 1 "Probe signal to CNC control" H 2250 3450 70 0000 C C 1 1900 3550 -1 0 0 1 $EndComp $Comp L GND #PWR5 U 1 1 4A6CB940 P 4050 1500 F 0 "#PWR5" H 4050 1500 30 0001 C C F 1 "GND" H 4050 1430 30 0001 C C 1 4050 1500 1 0 0 -1 $EndComp $Comp L +5V #PWR4 U 1 1 4A6CB93A P 4050 1000 F 0 "#PWR4" H 4050 1090 20 0001 C C F 1 "+5V" H 4050 1090 30 0000 C C 1 4050 1000 1 0 0 -1 $EndComp $Comp L C C2 U 1 1 4A6CB932 P 4050 1250 F 0 "C2" H 4100 1350 50 0000 L C F 1 "10u" H 4100 1150 50 0000 L C 1 4050 1250 1 0 0 -1 $EndComp NoConn ~ 2750 3450 NoConn ~ 2750 3350 NoConn ~ 2750 3250 NoConn ~ 2750 3150 NoConn ~ 2750 3050 NoConn ~ 2750 2950 NoConn ~ 2750 2850 NoConn ~ 5150 4350 NoConn ~ 5150 4250 NoConn ~ 8100 3150 $Comp L +5V #PWR20 U 1 1 4A6CB8A4 P 8150 3450 F 0 "#PWR20" H 8150 3540 20 0001 C C F 1 "+5V" H 8150 3540 30 0000 C C 1 8150 3450 0 1 1 0 $EndComp $Comp L GND #PWR17 U 1 1 4A6CB89E P 6650 3150 F 0 "#PWR17" H 6650 3150 30 0001 C C F 1 "GND" H 6650 3080 30 0001 C C 1 6650 3150 0 1 1 0 $EndComp $Comp L CRYSTALOSC X1 U 1 1 4A6CB7BB P 7400 3300 F 0 "X1" H 7400 3000 60 0000 C C F 1 "16 MHz" H 7400 3300 60 0000 C C 1 7400 3300 -1 0 0 1 $EndComp NoConn ~ 5150 3550 NoConn ~ 5150 3050 NoConn ~ 5150 2950 $Comp L GND #PWR15 U 1 1 4A6CB730 P 6300 1900 F 0 "#PWR15" H 6300 1900 30 0001 C C F 1 "GND" H 6300 1830 30 0001 C C 1 6300 1900 0 -1 -1 0 $EndComp $Comp L +5V #PWR14 U 1 1 4A6CB729 P 6250 1700 F 0 "#PWR14" H 6250 1790 20 0001 C C F 1 "+5V" H 6250 1790 30 0000 C C 1 6250 1700 0 1 1 0 $EndComp $Comp L CONN_3X2 P2 U 1 1 4A6CB6BA P 5800 1850 F 0 "P2" H 5800 2100 50 0000 C C F 1 "ISP" V 5800 1900 40 0000 C C 1 5800 1850 1 0 0 -1 $EndComp $Comp L +5V #PWR7 U 1 1 4A6CB670 P 4250 1950 F 0 "#PWR7" H 4250 2040 20 0001 C C F 1 "+5V" H 4250 2040 30 0000 C C 1 4250 1950 1 0 0 -1 $EndComp $Comp L +5V #PWR3 U 1 1 4A6CB66A P 3850 1950 F 0 "#PWR3" H 3850 2040 20 0001 C C F 1 "+5V" H 3850 2040 30 0000 C C 1 3850 1950 1 0 0 -1 $EndComp NoConn ~ 3650 2050 $Comp L GND #PWR6 U 1 1 4A6CB653 P 4150 5350 F 0 "#PWR6" H 4150 5350 30 0001 C C F 1 "GND" H 4150 5280 30 0001 C C 1 4150 5350 1 0 0 -1 $EndComp $Comp L GND #PWR2 U 1 1 4A6CB64F P 3750 5350 F 0 "#PWR2" H 3750 5350 30 0001 C C F 1 "GND" H 3750 5280 30 0001 C C 1 3750 5350 1 0 0 -1 $EndComp Text Notes 3850 6700 0 60 ~ Reset delay $Comp L +5V #PWR1 U 1 1 4A6CB612 P 3500 6250 F 0 "#PWR1" H 3500 6340 20 0001 C C F 1 "+5V" H 3500 6340 30 0000 C C 1 3500 6250 0 -1 -1 0 $EndComp $Comp L C C1 U 1 1 4A6CB602 P 3750 6250 F 0 "C1" H 3800 6350 50 0000 L C F 1 "100u" H 3800 6150 50 0000 L C 1 3750 6250 0 1 1 0 $EndComp $Comp L R R1 U 1 1 4A6CB5ED P 4300 6250 F 0 "R1" V 4380 6250 50 0000 C C F 1 "4.7k" V 4300 6250 50 0000 C C 1 4300 6250 0 1 1 0 $EndComp $Comp L GND #PWR8 U 1 1 4A6CB5D9 P 5250 6650 F 0 "#PWR8" H 5250 6650 30 0001 C C F 1 "GND" H 5250 6580 30 0001 C C 1 5250 6650 1 0 0 -1 $EndComp $Comp L R R2 U 1 1 4A6CB5BC P 4900 6550 F 0 "R2" V 4980 6550 50 0000 C C F 1 "47k" V 4900 6550 50 0000 C C 1 4900 6550 0 1 1 0 $EndComp $Comp L GND #PWR12 U 1 1 4A6CB593 P 5950 5450 F 0 "#PWR12" H 5950 5450 30 0001 C C F 1 "GND" H 5950 5380 30 0001 C C 1 5950 5450 0 -1 -1 0 $EndComp $Comp L +5V #PWR11 U 1 1 4A6CB588 P 5900 5800 F 0 "#PWR11" H 5900 5890 20 0001 C C F 1 "+5V" H 5900 5890 30 0000 C C 1 5900 5800 0 1 1 0 $EndComp $Comp L C C3 U 1 1 4A6CB52C P 5550 5450 F 0 "C3" H 5600 5550 50 0000 L C F 1 "47p" H 5600 5350 50 0000 L C 1 5550 5450 0 1 1 0 $EndComp $Comp L R R3 U 1 1 4A6CB521 P 5600 5800 F 0 "R3" V 5680 5800 50 0000 C C F 1 "1k" V 5600 5800 50 0000 C C 1 5600 5800 0 1 1 0 $EndComp $Comp L NPN Q1 U 1 1 4A6CB517 P 5150 6250 F 0 "Q1" H 5300 6250 50 0000 C C F 1 "NPN" H 5052 6400 50 0000 C C 1 5150 6250 1 0 0 -1 $EndComp $Comp L +5V #PWR9 U 1 1 4A6CAADE P 5700 4800 F 0 "#PWR9" H 5700 4890 20 0001 C C F 1 "+5V" H 5700 4890 30 0000 C C 1 5700 4800 -1 0 0 1 $EndComp $Comp L R R4 U 1 1 4A6CAAD7 P 5700 4500 F 0 "R4" V 5780 4500 50 0000 C C F 1 "4.7k" V 5700 4500 50 0000 C C 1 5700 4500 1 0 0 -1 $EndComp $Comp L SPST SW4 U 1 1 4A6CAA78 P 9800 5100 F 0 "SW4" H 9800 5200 70 0000 C C F 1 "ENABLESW" H 9800 5000 70 0000 C C 1 9800 5100 1 0 0 -1 $EndComp $Comp L R R9 U 1 1 4A6CA5B2 P 7850 1600 F 0 "R9" V 7930 1600 50 0000 C C F 1 "47" V 7850 1600 50 0000 C C 1 7850 1600 1 0 0 -1 $EndComp $Comp L +5V #PWR18 U 1 1 4A6CA0F5 P 7850 1250 F 0 "#PWR18" H 7850 1340 20 0001 C C F 1 "+5V" H 7850 1340 30 0000 C C 1 7850 1250 1 0 0 -1 $EndComp $Comp L MOSFET_N Q2 U 1 1 4A6CA08D P 7750 2450 F 0 "Q2" H 7760 2620 60 0000 R C F 1 "BS170" H 7760 2300 60 0000 R C 1 7750 2450 1 0 0 -1 $EndComp $Comp L GND #PWR19 U 1 1 4A6C8ADE P 7850 2750 F 0 "#PWR19" H 7850 2750 30 0001 C C F 1 "GND" H 7850 2680 30 0001 C C 1 7850 2750 1 0 0 -1 $EndComp $Comp L SPEAKER SP1 U 1 1 4A6C5C0E P 8300 2050 F 0 "SP1" H 8200 2300 70 0000 C C F 1 "SPEAKER" H 8200 1800 70 0000 C C 1 8300 2050 1 0 0 -1 $EndComp $Comp L R R6 U 1 1 4A6C571B P 5950 2850 F 0 "R6" V 6030 2850 50 0000 C C F 1 "330" V 5950 2850 50 0000 C C 1 5950 2850 0 1 1 0 $EndComp $Comp L GND #PWR21 U 1 1 4A6C56F1 P 10400 5350 F 0 "#PWR21" H 10400 5350 30 0001 C C F 1 "GND" H 10400 5280 30 0001 C C 1 10400 5350 1 0 0 -1 $EndComp $Comp L LED D1 U 1 1 4A6C5676 P 10400 3250 F 0 "D1" H 10400 3350 50 0000 C C F 1 "TRIP LED" H 10400 3150 50 0000 C C 1 10400 3250 0 1 1 0 $EndComp $Comp L +5V #PWR10 U 1 1 4A6C557B P 5900 4800 F 0 "#PWR10" H 5900 4890 20 0001 C C F 1 "+5V" H 5900 4890 30 0000 C C 1 5900 4800 -1 0 0 1 $EndComp $Comp L +5V #PWR13 U 1 1 4A6C5576 P 6100 4800 F 0 "#PWR13" H 6100 4890 20 0001 C C F 1 "+5V" H 6100 4890 30 0000 C C 1 6100 4800 -1 0 0 1 $EndComp $Comp L +5V #PWR16 U 1 1 4A6C556E P 6300 4800 F 0 "#PWR16" H 6300 4890 20 0001 C C F 1 "+5V" H 6300 4890 30 0000 C C 1 6300 4800 -1 0 0 1 $EndComp $Comp L R R5 U 1 1 4A6C5550 P 5900 4500 F 0 "R5" V 5980 4500 50 0000 C C F 1 "4.7k" V 5900 4500 50 0000 C C 1 5900 4500 1 0 0 -1 $EndComp $Comp L R R7 U 1 1 4A6C5549 P 6100 4500 F 0 "R7" V 6180 4500 50 0000 C C F 1 "4.7k" V 6100 4500 50 0000 C C 1 6100 4500 1 0 0 -1 $EndComp $Comp L R R8 U 1 1 4A6C5541 P 6300 4500 F 0 "R8" V 6380 4500 50 0000 C C F 1 "4.7k" V 6300 4500 50 0000 C C 1 6300 4500 1 0 0 -1 $EndComp $Comp L SPST SW3 U 1 1 4A6C54A8 P 9800 4550 F 0 "SW3" H 9800 4650 70 0000 C C F 1 "PROBESW 3" H 9800 4450 70 0000 C C 1 9800 4550 1 0 0 -1 $EndComp $Comp L SPST SW2 U 1 1 4A6C54A1 P 9800 4200 F 0 "SW2" H 9800 4300 70 0000 C C F 1 "PROBESW 2" H 9800 4100 70 0000 C C 1 9800 4200 1 0 0 -1 $EndComp $Comp L SPST SW1 U 1 1 4A6C5497 P 9800 3850 F 0 "SW1" H 9800 3950 70 0000 C C F 1 "PROBESW 1" H 9800 3750 70 0000 C C 1 9800 3850 1 0 0 -1 $EndComp $Comp L ATMEGA8-16PI I1 U 1 1 4A6C5396 P 3950 3600 F 0 "I1" H 4650 5000 60 0000 C C F 1 "ATMEGA8-16PI" H 4600 2150 60 0000 C C 1 3950 3600 1 0 0 -1 $EndComp $EndSCHEMATC