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 FabAcademy:Microcontroller_ATtiny3216-SFR U1
U 1 1 60A971BB
P 3500 2650
F 0 "U1" H 3500 3631 50  0000 C CNN
F 1 "Microcontroller_ATtiny3216-SFR" H 3500 3540 50  0000 C CNN
F 2 "FabAcademy:SOIC-20_7.5x12.8mm_P1.27mm" H 3500 2650 50  0001 C CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny3216_ATtiny1616-data-sheet-40001997B.pdf" H 3500 2650 50  0001 C CNN
	1    3500 2650
	1    0    0    -1  
$EndComp
Text GLabel 2800 2350 0    50   Output ~ 0
TX
Text GLabel 2800 2450 0    50   Input ~ 0
RX
Text GLabel 4200 2250 2    50   Input ~ 0
UPDI
Wire Wire Line
	4100 2250 4200 2250
Wire Wire Line
	2800 2350 2900 2350
Wire Wire Line
	2800 2450 2900 2450
$Comp
L power:GND #PWR0101
U 1 1 60AB0B74
P 3500 3550
F 0 "#PWR0101" H 3500 3300 50  0001 C CNN
F 1 "GND" H 3505 3377 50  0000 C CNN
F 2 "" H 3500 3550 50  0001 C CNN
F 3 "" H 3500 3550 50  0001 C CNN
	1    3500 3550
	1    0    0    -1  
$EndComp
Wire Wire Line
	3500 3550 3500 3450
$Comp
L power:VCC #PWR0102
U 1 1 60AB1F5D
P 3500 1750
F 0 "#PWR0102" H 3500 1600 50  0001 C CNN
F 1 "VCC" H 3515 1923 50  0000 C CNN
F 2 "" H 3500 1750 50  0001 C CNN
F 3 "" H 3500 1750 50  0001 C CNN
	1    3500 1750
	1    0    0    -1  
$EndComp
Wire Wire Line
	3500 1750 3500 1850
$Comp
L Connector:Conn_01x02_Male J3
U 1 1 60AD7B24
P 900 7050
F 0 "J3" H 1008 7231 50  0000 C CNN
F 1 "UPDI" H 1008 7140 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left" H 900 7050 50  0001 C CNN
F 3 "~" H 900 7050 50  0001 C CNN
	1    900  7050
	1    0    0    -1  
$EndComp
Text GLabel 1200 7050 2    50   Input ~ 0
UPDI
$Comp
L Connector:Conn_01x04_Male J5
U 1 1 60AE2610
P 1700 7150
F 0 "J5" H 1808 7431 50  0000 C CNN
F 1 "Serial" H 1808 7340 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Left" H 1700 7150 50  0001 C CNN
F 3 "~" H 1700 7150 50  0001 C CNN
	1    1700 7150
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0110
U 1 1 60AE2D5F
P 2000 7050
F 0 "#PWR0110" H 2000 6900 50  0001 C CNN
F 1 "VCC" H 2015 7223 50  0000 C CNN
F 2 "" H 2000 7050 50  0001 C CNN
F 3 "" H 2000 7050 50  0001 C CNN
	1    2000 7050
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0111
U 1 1 60AE329E
P 2000 7150
F 0 "#PWR0111" H 2000 6900 50  0001 C CNN
F 1 "GND" H 2005 6977 50  0000 C CNN
F 2 "" H 2000 7150 50  0001 C CNN
F 3 "" H 2000 7150 50  0001 C CNN
	1    2000 7150
	1    0    0    -1  
$EndComp
Text GLabel 2100 7350 2    50   Input ~ 0
TX
Text GLabel 2100 7250 2    50   Input ~ 0
RX
Wire Wire Line
	1900 7250 2100 7250
Wire Wire Line
	1900 7350 2100 7350
Wire Wire Line
	2000 7150 1900 7150
Wire Wire Line
	1900 7050 2000 7050
$Comp
L FabAcademy:LED D1
U 1 1 60B194C2
P 7150 3050
F 0 "D1" H 7143 2795 50  0000 C CNN
F 1 "LED" H 7143 2886 50  0000 C CNN
F 2 "Package_SO:SOIC-8_7.5x5.85mm_P1.27mm" H 7150 3050 50  0001 C CNN
F 3 "https://optoelectronics.liteon.com/upload/download/DS-22-98-0002/LTST-C150CKT.pdf" H 7150 3050 50  0001 C CNN
	1    7150 3050
	0    -1   -1   0   
$EndComp
$Comp
L FabAcademy:R R1
U 1 1 60B1A060
P 7150 2650
F 0 "R1" V 6943 2650 50  0000 C CNN
F 1 "180" V 7034 2650 50  0000 C CNN
F 2 "FabAcademy:R_1206" V 7080 2650 50  0001 C CNN
F 3 "~" H 7150 2650 50  0001 C CNN
	1    7150 2650
	-1   0    0    1   
$EndComp
$Comp
L Interface_UART:MAX485E U2
U 1 1 60ABB043
P 8250 2600
F 0 "U2" H 8250 3281 50  0000 C CNN
F 1 "MAX485E" H 8250 3190 50  0000 C CNN
F 2 "Package_SO:SOIC-8_7.5x5.85mm_P1.27mm" H 8250 1900 50  0001 C CNN
F 3 "https://datasheets.maximintegrated.com/en/ds/MAX1487E-MAX491E.pdf" H 8250 2650 50  0001 C CNN
	1    8250 2600
	1    0    0    -1  
$EndComp
Wire Wire Line
	7850 2600 7850 2700
Text GLabel 7750 2500 0    50   Output ~ 0
RX
Text GLabel 7750 2600 0    50   Input ~ 0
DIR
Text GLabel 7750 2800 0    50   Output ~ 0
TX
Wire Wire Line
	7750 2500 7850 2500
Wire Wire Line
	7750 2600 7850 2600
Connection ~ 7850 2600
Wire Wire Line
	7750 2800 7850 2800
Text GLabel 2800 2550 0    50   Output ~ 0
DIR
$Comp
L power:VCC #PWR0114
U 1 1 60AE8167
P 3400 7050
F 0 "#PWR0114" H 3400 6900 50  0001 C CNN
F 1 "VCC" H 3415 7223 50  0000 C CNN
F 2 "" H 3400 7050 50  0001 C CNN
F 3 "" H 3400 7050 50  0001 C CNN
	1    3400 7050
	1    0    0    -1  
$EndComp
Text GLabel 8850 2500 2    50   BiDi ~ 0
A
Text GLabel 8850 2800 2    50   BiDi ~ 0
B
Wire Wire Line
	8650 2500 8750 2500
Wire Wire Line
	8650 2800 8750 2800
Text GLabel 3400 7150 0    50   BiDi ~ 0
A
Text GLabel 4100 7150 2    50   BiDi ~ 0
B
$Comp
L FabAcademy:R R2
U 1 1 60B8E29B
P 8750 2650
F 0 "R2" H 8820 2696 50  0000 L CNN
F 1 "120" H 8820 2605 50  0000 L CNN
F 2 "FabAcademy:R_1206" V 8680 2650 50  0001 C CNN
F 3 "~" H 8750 2650 50  0001 C CNN
	1    8750 2650
	1    0    0    -1  
$EndComp
Connection ~ 8750 2500
Wire Wire Line
	8750 2500 8850 2500
Connection ~ 8750 2800
Wire Wire Line
	8750 2800 8850 2800
$Comp
L power:GND #PWR0103
U 1 1 60B938A6
P 8250 3300
F 0 "#PWR0103" H 8250 3050 50  0001 C CNN
F 1 "GND" H 8255 3127 50  0000 C CNN
F 2 "" H 8250 3300 50  0001 C CNN
F 3 "" H 8250 3300 50  0001 C CNN
	1    8250 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	8250 3200 8250 3300
$Comp
L power:VCC #PWR0104
U 1 1 60B93500
P 8250 2000
F 0 "#PWR0104" H 8250 1850 50  0001 C CNN
F 1 "VCC" H 8265 2173 50  0000 C CNN
F 2 "" H 8250 2000 50  0001 C CNN
F 3 "" H 8250 2000 50  0001 C CNN
	1    8250 2000
	1    0    0    -1  
$EndComp
Wire Wire Line
	8250 2000 8250 2100
$Comp
L FabAcademy:R R3
U 1 1 60BA5B07
P 6500 7200
F 0 "R3" H 6570 7246 50  0000 L CNN
F 1 "0" H 6570 7155 50  0000 L CNN
F 2 "FabAcademy:R_1206" V 6430 7200 50  0001 C CNN
F 3 "~" H 6500 7200 50  0001 C CNN
	1    6500 7200
	1    0    0    -1  
$EndComp
Text GLabel 6400 7050 0    50   Input ~ 0
DIR
Text GLabel 6600 7350 2    50   Input ~ 0
DIR
Wire Wire Line
	6400 7050 6500 7050
Wire Wire Line
	6500 7350 6600 7350
Wire Wire Line
	2800 2550 2900 2550
$Comp
L FabAcademy:C C1
U 1 1 60BBDFE3
P 5700 7200
F 0 "C1" H 5815 7246 50  0000 L CNN
F 1 "1uF" H 5815 7155 50  0000 L CNN
F 2 "FabAcademy:C_1206" H 5738 7050 50  0001 C CNN
F 3 "" H 5700 7200 50  0001 C CNN
	1    5700 7200
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0108
U 1 1 60BC47D3
P 5700 7050
F 0 "#PWR0108" H 5700 6900 50  0001 C CNN
F 1 "VCC" H 5715 7223 50  0000 C CNN
F 2 "" H 5700 7050 50  0001 C CNN
F 3 "" H 5700 7050 50  0001 C CNN
	1    5700 7050
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0109
U 1 1 60BC4DB5
P 5700 7350
F 0 "#PWR0109" H 5700 7100 50  0001 C CNN
F 1 "GND" H 5705 7177 50  0000 C CNN
F 2 "" H 5700 7350 50  0001 C CNN
F 3 "" H 5700 7350 50  0001 C CNN
	1    5700 7350
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0117
U 1 1 60BE1381
P 1200 7150
F 0 "#PWR0117" H 1200 6900 50  0001 C CNN
F 1 "GND" H 1205 6977 50  0000 C CNN
F 2 "" H 1200 7150 50  0001 C CNN
F 3 "" H 1200 7150 50  0001 C CNN
	1    1200 7150
	1    0    0    -1  
$EndComp
Wire Wire Line
	1200 7150 1100 7150
Wire Wire Line
	1100 7050 1200 7050
$Comp
L power:GND #PWR0116
U 1 1 60AD4F6E
P 4100 7050
F 0 "#PWR0116" H 4100 6800 50  0001 C CNN
F 1 "GND" H 4105 6877 50  0000 C CNN
F 2 "" H 4100 7050 50  0001 C CNN
F 3 "" H 4100 7050 50  0001 C CNN
	1    4100 7050
	-1   0    0    1   
$EndComp
Wire Wire Line
	3400 7050 3500 7050
Wire Wire Line
	3400 7150 3500 7150
Wire Wire Line
	4000 7050 4100 7050
Wire Wire Line
	4000 7150 4100 7150
$Comp
L Connector_Generic:Conn_02x03_Odd_Even J1
U 1 1 60ADCA83
P 3700 7150
F 0 "J1" H 3750 7467 50  0000 C CNN
F 1 "RS485" H 3750 7376 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical_SMD" H 3700 7150 50  0001 C CNN
F 3 "~" H 3700 7150 50  0001 C CNN
	1    3700 7150
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0107
U 1 1 60AFF808
P 7150 3300
F 0 "#PWR0107" H 7150 3050 50  0001 C CNN
F 1 "GND" H 7155 3127 50  0000 C CNN
F 2 "" H 7150 3300 50  0001 C CNN
F 3 "" H 7150 3300 50  0001 C CNN
	1    7150 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7150 3200 7150 3300
Text GLabel 7150 2400 0    50   Input ~ 0
SEL
Wire Wire Line
	7150 2400 7150 2500
Wire Wire Line
	7150 2800 7150 2900
$Comp
L Connector:Conn_01x04_Male J4
U 1 1 60B1B625
P 2550 2950
F 0 "J4" H 2658 3231 50  0000 C CNN
F 1 "Channel" H 2658 3140 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Left" H 2550 2950 50  0001 C CNN
F 3 "~" H 2550 2950 50  0001 C CNN
	1    2550 2950
	1    0    0    -1  
$EndComp
Wire Wire Line
	4100 2850 4200 2850
Wire Wire Line
	4100 2950 4200 2950
Wire Wire Line
	2800 2650 2900 2650
Text GLabel 2800 2650 0    50   Output ~ 0
SEL
Wire Wire Line
	2500 2150 2900 2150
$Comp
L power:GND #PWR0105
U 1 1 60BD6421
P 2600 2250
F 0 "#PWR0105" H 2600 2000 50  0001 C CNN
F 1 "GND" H 2605 2077 50  0000 C CNN
F 2 "" H 2600 2250 50  0001 C CNN
F 3 "" H 2600 2250 50  0001 C CNN
	1    2600 2250
	1    0    0    -1  
$EndComp
Wire Wire Line
	2600 2250 2500 2250
$Comp
L power:GND #PWR0106
U 1 1 60AF5994
P 5800 2650
F 0 "#PWR0106" H 5800 2400 50  0001 C CNN
F 1 "GND" H 5805 2477 50  0000 C CNN
F 2 "" H 5800 2650 50  0001 C CNN
F 3 "" H 5800 2650 50  0001 C CNN
	1    5800 2650
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x04_Male J7
U 1 1 60AF87E2
P 6100 2450
F 0 "J7" H 6208 2731 50  0000 C CNN
F 1 "Rotary" H 6208 2640 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Left" H 6100 2450 50  0001 C CNN
F 3 "~" H 6100 2450 50  0001 C CNN
	1    6100 2450
	-1   0    0    -1  
$EndComp
Wire Wire Line
	5800 2650 5900 2650
Wire Wire Line
	4100 2650 4300 2650
Wire Wire Line
	4100 2750 4300 2750
$Comp
L Connector:Conn_01x02_Male J6
U 1 1 60B2DF6B
P 4500 2650
F 0 "J6" H 4608 2831 50  0000 C CNN
F 1 "LED" H 4608 2740 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left" H 4500 2650 50  0001 C CNN
F 3 "~" H 4500 2650 50  0001 C CNN
	1    4500 2650
	-1   0    0    -1  
$EndComp
Wire Wire Line
	4100 2350 5900 2350
Wire Wire Line
	4100 2450 5900 2450
Wire Wire Line
	4100 2550 5900 2550
$Comp
L Connector:Conn_01x02_Male J2
U 1 1 60B797C2
P 2300 2150
F 0 "J2" H 2408 2331 50  0000 C CNN
F 1 "Ameter" H 2408 2240 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left" H 2300 2150 50  0001 C CNN
F 3 "~" H 2300 2150 50  0001 C CNN
	1    2300 2150
	1    0    0    -1  
$EndComp
Wire Wire Line
	2750 2850 2900 2850
Wire Wire Line
	2750 2950 2900 2950
Wire Wire Line
	2750 3050 2900 3050
Wire Wire Line
	2900 3150 2750 3150
$EndSCHEMATC