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: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:tl431 LIBS:switches EELAYER 25 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 5 Title "Xytronic LF-1600" Date "" Rev "1.1" Comp "Michael Büsch " Comment1 "Reverse engineered" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L ATMEGA88PA-AU U1 U 1 1 5493288E P 4450 4550 F 0 "U1" H 3700 5800 40 0000 L BNN F 1 "ATMEGA88PA-PU" H 4850 3150 40 0000 L BNN F 2 "DIL28" H 4450 4550 30 0000 C CIN F 3 "" H 4450 4550 60 0000 C CNN 1 4450 4550 1 0 0 -1 $EndComp $Sheet S 1700 950 950 200 U 549333F6 F0 "supply" 50 F1 "supply.sch" 50 $EndSheet NoConn ~ 5450 3950 $Comp L R R8 U 1 1 54935809 P 6600 4900 F 0 "R8" V 6680 4900 40 0000 C CNN F 1 "10 k" V 6607 4901 40 0000 C CNN F 2 "~" V 6530 4900 30 0000 C CNN F 3 "~" H 6600 4900 30 0000 C CNN 1 6600 4900 0 -1 -1 0 $EndComp Text GLabel 7050 4900 2 60 Input ~ 0 +5V $Comp L C C1 U 1 1 54935947 P 6950 4550 F 0 "C1" H 6950 4650 40 0000 L CNN F 1 "100 nF" H 6956 4465 40 0000 L CNN F 2 "~" H 6988 4400 30 0000 C CNN F 3 "~" H 6950 4550 60 0000 C CNN 1 6950 4550 1 0 0 -1 $EndComp Text GLabel 7050 4200 2 60 Input ~ 0 GND Text GLabel 3350 5750 0 60 Input ~ 0 GND $Comp L R R12 U 1 1 54935CDD P 2350 3750 F 0 "R12" V 2430 3750 40 0000 C CNN F 1 "33" V 2357 3751 40 0000 C CNN F 2 "~" V 2280 3750 30 0000 C CNN F 3 "~" H 2350 3750 30 0000 C CNN 1 2350 3750 0 -1 -1 0 $EndComp $Comp L R R11 U 1 1 54935F81 P 3150 4650 F 0 "R11" V 3230 4650 40 0000 C CNN F 1 "100" V 3157 4651 40 0000 C CNN F 2 "~" V 3080 4650 30 0000 C CNN F 3 "~" H 3150 4650 30 0000 C CNN 1 3150 4650 0 -1 -1 0 $EndComp Text GLabel 2100 4650 0 60 Input ~ 0 GND Text GLabel 2450 6050 3 60 Input ~ 0 GND Text Label 3450 4450 1 60 ~ 0 2.5 V NoConn ~ 5450 4050 Text GLabel 1900 3450 0 60 Input ~ 0 +5V Text Label 7750 6000 0 39 ~ 0 anode, big digit, left Text Label 7750 6100 0 39 ~ 0 anode, big digit, center Text Label 7750 6200 0 39 ~ 0 anode, big digit, right Text Label 7750 5900 0 39 ~ 0 anode, small digit Text Label 7900 5050 0 39 ~ 0 big: b; small: f Text Label 7900 5150 0 39 ~ 0 big: g; small: a Text Label 7900 5250 0 39 ~ 0 big: c; small: d Text Label 7900 5350 0 39 ~ 0 big: dp; small: e Text Label 7900 5450 0 39 ~ 0 big: d; small: c Text Label 7900 5550 0 39 ~ 0 big: e; small: dp Text Label 7900 5650 0 39 ~ 0 big: f; small: b Text Label 7900 5750 0 39 ~ 0 big: a; small: g $Sheet S 8500 3400 950 3000 U 549454DE F0 "user_interface" 50 F1 "user_interface.sch" 50 F2 "anode_big_left" I L 8500 6000 60 F3 "anode_big_center" I L 8500 6100 60 F4 "anode_big_right" I L 8500 6200 60 F5 "anode_small" I L 8500 5900 60 F6 "dp/e" I L 8500 5350 60 F7 "a/f" I L 8500 5050 60 F8 "g/a" I L 8500 5150 60 F9 "c/d" I L 8500 5250 60 F10 "d/c" I L 8500 5450 60 F11 "e/dp" I L 8500 5550 60 F12 "f/b" I L 8500 5650 60 F13 "a/g" I L 8500 5750 60 F14 "sw_set" I L 8500 3650 60 F15 "sw_minus" I L 8500 3750 60 F16 "sw_plus" I L 8500 3850 60 $EndSheet $Sheet S 8500 950 950 1350 U 5496AC86 F0 "heater" 50 F1 "heater.sch" 50 F2 "heater_on" I L 8500 2100 60 F3 "current_measure" I L 8500 2000 60 $EndSheet $Sheet S 4050 950 950 1350 U 5495298F F0 "temperature" 50 F1 "temperature.sch" 50 F2 "temp_measure" I R 5000 2000 60 F3 "iron_switch" I R 5000 2100 60 $EndSheet Text Notes 5350 6050 2 39 ~ 0 labled as 'HS-K67121' $Comp L C C1b U 1 1 54A1FCC7 P 3450 6350 F 0 "C1b" H 3450 6450 40 0000 L CNN F 1 "10 nF" H 3456 6265 40 0000 L CNN F 2 "~" H 3488 6200 30 0000 C CNN F 3 "~" H 3450 6350 60 0000 C CNN 1 3450 6350 1 0 0 -1 $EndComp Text GLabel 3450 6650 3 60 Input ~ 0 +5V Text Notes 3700 6600 0 39 ~ 0 Fix:\nC1b was added, because C1 is far away from VCC/GND pins\nin older through-hole models. $Comp L D D4 U 1 1 55EC2D4B P 6150 1400 F 0 "D4" H 6150 1500 40 0000 C CNN F 1 "DIODE" H 6150 1300 40 0000 C CNN F 2 "~" H 6150 1400 60 0000 C CNN F 3 "~" H 6150 1400 60 0000 C CNN 1 6150 1400 0 1 1 0 $EndComp $Comp L R R9 U 1 1 55EC2E11 P 6450 1350 F 0 "R9" V 6530 1350 40 0000 C CNN F 1 "R" V 6457 1351 40 0000 C CNN F 2 "~" V 6380 1350 30 0000 C CNN F 3 "~" H 6450 1350 30 0000 C CNN 1 6450 1350 1 0 0 -1 $EndComp Text GLabel 6150 1050 1 60 Input ~ 0 GND Text GLabel 6450 1050 1 60 Input ~ 0 +5V Text Notes 6650 1450 0 39 ~ 0 D4 and R9\nare not assembled\non the board. $Comp L CP C7 U 1 1 57948B5F P 2450 4650 F 0 "C7" H 2350 4750 40 0000 R CNN F 1 "47 µF / 16 V" H 2350 4550 40 0000 R CNN F 2 "" H 2488 4500 50 0000 C CNN F 3 "" H 2450 4650 50 0000 C CNN 1 2450 4650 0 1 1 0 $EndComp $Comp L TL431 U3 U 1 1 57954078 P 2450 5600 F 0 "U3" H 2450 5400 39 0000 C CNN F 1 "TL431" H 2300 5800 39 0000 C CNN F 2 "" H 2450 5600 39 0000 C CNN F 3 "" H 2450 5600 39 0000 C CNN 1 2450 5600 0 1 1 0 $EndComp Text Notes 5350 6150 2 39 ~ 0 can be replaced by ATMEGA328P Wire Wire Line 5450 3650 8500 3650 Wire Wire Line 5450 3750 8500 3750 Wire Wire Line 5450 3850 8500 3850 Wire Wire Line 5450 4900 6450 4900 Wire Wire Line 6750 4900 7050 4900 Wire Wire Line 3450 5550 3450 6200 Wire Wire Line 3450 5650 3550 5650 Wire Wire Line 3350 5750 3550 5750 Wire Wire Line 2500 3750 3550 3750 Wire Wire Line 3300 4650 3450 4650 Wire Wire Line 3450 4850 3450 4050 Wire Wire Line 3450 4050 3550 4050 Wire Wire Line 2600 4650 3000 4650 Wire Wire Line 2450 5950 2450 6050 Connection ~ 3450 4650 Wire Wire Line 2000 4850 3450 4850 Wire Wire Line 6950 4700 6950 4900 Connection ~ 6950 4900 Wire Wire Line 5450 5050 8500 5050 Wire Wire Line 5450 5150 8500 5150 Wire Wire Line 5450 5250 8500 5250 Wire Wire Line 5450 5450 8500 5450 Wire Wire Line 5450 5550 8500 5550 Wire Wire Line 5450 5650 8500 5650 Wire Wire Line 5450 5750 8500 5750 Wire Wire Line 5450 5350 8500 5350 Wire Wire Line 5450 4150 6250 4150 Wire Wire Line 6250 4150 6250 5900 Connection ~ 2750 4650 Wire Wire Line 2750 4650 2750 3750 Wire Wire Line 1900 3450 3550 3450 Connection ~ 2750 3750 Wire Wire Line 2000 3450 2000 3750 Connection ~ 2000 3450 Wire Wire Line 2000 3750 2200 3750 Wire Wire Line 7550 3550 5450 3550 Wire Wire Line 7550 2100 7550 3550 Wire Wire Line 5450 4600 5950 4600 Wire Wire Line 5950 4600 5950 6000 Wire Wire Line 5450 4700 5850 4700 Wire Wire Line 5850 4700 5850 6100 Wire Wire Line 5450 4800 5750 4800 Wire Wire Line 5750 4800 5750 6200 Wire Wire Line 6250 5900 8500 5900 Wire Wire Line 5950 6000 8500 6000 Wire Wire Line 5850 6100 8500 6100 Wire Wire Line 5750 6200 8500 6200 Wire Wire Line 6950 4200 6950 4400 Wire Wire Line 6950 4200 7050 4200 Wire Wire Line 7550 2100 8500 2100 Wire Wire Line 5450 4500 6050 4500 Wire Wire Line 6050 4500 6050 2000 Wire Wire Line 6050 2000 8500 2000 Wire Wire Line 5950 2000 5950 4400 Wire Wire Line 5950 4400 5450 4400 Wire Wire Line 5950 2000 5000 2000 Wire Wire Line 5450 3450 5850 3450 Wire Wire Line 5850 3450 5850 2100 Wire Wire Line 5850 2100 5000 2100 Connection ~ 3450 5750 Wire Wire Line 3450 6500 3450 6650 Wire Wire Line 6450 1500 6450 1750 Wire Wire Line 6450 1750 6150 1750 Connection ~ 6150 1750 Wire Wire Line 6150 1050 6150 1250 Wire Wire Line 6450 1050 6450 1200 Wire Wire Line 6150 4300 5450 4300 Wire Notes Line 5950 1650 6600 1100 Wire Notes Line 5950 1100 6600 1650 Wire Wire Line 2100 4650 2300 4650 Wire Wire Line 6150 1550 6150 4300 Wire Wire Line 2450 4850 2450 4950 Wire Wire Line 2000 4850 2000 5450 Connection ~ 2450 4850 Wire Wire Line 3550 3550 3450 3550 Wire Wire Line 3450 3550 3450 3450 Connection ~ 3450 3450 Wire Wire Line 3450 5550 3550 5550 Connection ~ 3450 5650 NoConn ~ 3550 4800 NoConn ~ 3550 4900 $EndSCHEMATC