EESchema Schematic File Version 4 EELAYER 26 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Text Label 1750 850 2 60 ~ 0 GND Text Label 1750 1150 2 60 ~ 0 RS_OUT Text Label 1750 1250 2 60 ~ 0 R/W_OUT Text Label 1750 1350 2 60 ~ 0 E_OUT Text Label 2550 1350 0 60 ~ 0 D4_OUT Text Label 2550 1250 0 60 ~ 0 D5_OUT Text Label 2550 1150 0 60 ~ 0 D6_OUT Text Label 2550 1050 0 60 ~ 0 D7_OUT Text Label 2550 850 0 60 ~ 0 GND $Comp L global:R R? U 1 1 5E4402D7 P 2850 950 F 0 "R?" V 2930 950 50 0000 C CNN F 1 "100" V 2850 950 50 0000 C CNN F 2 "R:0805" V 2780 950 50 0001 C CNN F 3 "" H 2850 950 50 0000 C CNN F 4 "912" H -7950 -9350 50 0001 C CNN "Partkeepr" 1 2850 950 0 1 1 0 $EndComp Wire Wire Line 2700 950 2550 950 Text Notes 2000 600 0 60 ~ 0 Ecran $Comp L afficheur:HD44780 U? U 1 1 5E4402E2 P 2150 1200 F 0 "U?" H 2300 750 60 0000 C CNN F 1 "HD44780" H 2150 1650 60 0000 C CNN F 2 "Connector:PinHeader2.54_1X16" H 1950 1250 60 0001 C CNN F 3 "" H 1950 1250 60 0001 C CNN F 4 "100" H -7950 -9350 50 0001 C CNN "Partkeepr" 1 2150 1200 1 0 0 -1 $EndComp Text Label 1250 1200 3 60 ~ 0 GND $Comp L global:Poten VR? U 1 1 5E4402EB P 1250 1050 F 0 "VR?" V 1330 1050 50 0000 C CNN F 1 "10K" V 1250 1050 50 0000 C CNN F 2 "R:3296" V 1180 1050 50 0001 C CNN F 3 "" H 1250 1050 50 0000 C CNN F 4 "NC" H -7975 -9350 50 0001 C CNN "Partkeepr" 1 1250 1050 -1 0 0 1 $EndComp Text Label 1750 950 2 60 ~ 0 5V Text Label 3000 950 0 60 ~ 0 5V Text Label 1250 900 1 60 ~ 0 5V Wire Wire Line 1400 1050 1750 1050 $Comp L global:R R? U 1 1 5E4402F7 P 2700 1450 F 0 "R?" V 2600 1450 50 0000 C CNN F 1 "100K" V 2700 1450 50 0000 C CNN F 2 "R:0805" V 2630 1450 50 0001 C CNN F 3 "" H 2700 1450 50 0000 C CNN F 4 "0916" H -7950 -9350 50 0001 C CNN "Partkeepr" 1 2700 1450 0 1 1 0 $EndComp $Comp L global:R R? U 1 1 5E4402FF P 2700 1550 F 0 "R?" V 2600 1550 50 0000 C CNN F 1 "100K" V 2700 1550 50 0000 C CNN F 2 "R:0805" V 2630 1550 50 0001 C CNN F 3 "" H 2700 1550 50 0000 C CNN F 4 "0916" H -7950 -9350 50 0001 C CNN "Partkeepr" 1 2700 1550 0 -1 -1 0 $EndComp $Comp L global:R R? U 1 1 5E440307 P 1600 1550 F 0 "R?" V 1500 1550 50 0000 C CNN F 1 "100K" V 1600 1550 50 0000 C CNN F 2 "R:0805" V 1530 1550 50 0001 C CNN F 3 "" H 1600 1550 50 0000 C CNN F 4 "0916" H -7950 -9350 50 0001 C CNN "Partkeepr" 1 1600 1550 0 -1 -1 0 $EndComp $Comp L global:R R? U 1 1 5E44030F P 1600 1450 F 0 "R?" V 1500 1450 50 0000 C CNN F 1 "100K" V 1600 1450 50 0000 C CNN F 2 "R:0805" V 1530 1450 50 0001 C CNN F 3 "" H 1600 1450 50 0000 C CNN F 4 "0916" H -7950 -9350 50 0001 C CNN "Partkeepr" 1 1600 1450 0 1 1 0 $EndComp Text Label 2850 1450 0 60 ~ 0 GND Text Label 2850 1550 0 60 ~ 0 GND Text Label 1450 1450 2 60 ~ 0 GND Text Label 1450 1550 2 60 ~ 0 GND $Comp L NXP:74HC541 U? U 1 1 5E467B19 P 4050 1350 F 0 "U?" H 4050 2065 50 0000 C CNN F 1 "74HC541" H 4050 1974 50 0000 C CNN F 2 "" H 4050 1350 50 0001 C CNN F 3 "" H 4050 1350 50 0001 C CNN F 4 "1502" H 4050 1350 50 0001 C CNN "Partkeepr" 1 4050 1350 1 0 0 -1 $EndComp Text Label 4450 1100 0 60 ~ 0 RS_OUT Text Label 4450 1200 0 60 ~ 0 R/W_OUT Text Label 4450 1300 0 60 ~ 0 E_OUT Text Label 4450 1400 0 60 ~ 0 D4_OUT Text Label 4450 1500 0 60 ~ 0 D5_OUT Text Label 4450 1600 0 60 ~ 0 D6_OUT Text Label 4450 1700 0 60 ~ 0 D7_OUT Text Label 3650 1000 2 60 ~ 0 RS_OUT Text Label 3650 1100 2 60 ~ 0 R/W_OUT Text Label 3650 1200 2 60 ~ 0 E_OUT Text Label 3650 1300 2 60 ~ 0 D4_OUT Text Label 3650 1400 2 60 ~ 0 D5_OUT Text Label 3650 1500 2 60 ~ 0 D6_OUT Text Label 3650 1600 2 60 ~ 0 D7_OUT NoConn ~ 4450 1800 NoConn ~ 3650 1700 Text Label 3650 1800 2 60 ~ 0 GND Text Label 4450 900 0 60 ~ 0 5V $Comp L global:C C? U 1 1 5E46974D P 4000 2200 F 0 "C?" V 4150 2200 50 0000 C CNN F 1 "0.1µF" V 3850 2200 50 0000 C CNN F 2 "" H 4038 2050 50 0000 C CNN F 3 "" H 4000 2200 50 0000 C CNN F 4 "0605" H 4000 2200 50 0001 C CNN "Partkeepr" 1 4000 2200 0 1 1 0 $EndComp Text Label 3650 900 2 60 ~ 0 GND Text Label 4450 1000 0 60 ~ 0 GND Text Label 4150 2200 0 60 ~ 0 5V Text Label 3850 2200 2 60 ~ 0 GND $EndSCHEMATC