Apple-2-HW/unified_retro_keyboard
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unified_retro_keyboard/hardware/interface-ascii-atmega2560/interface-ascii-2560.sch
Dave 5e4c1ed078 Fix shunted diode footprints on encoder boards 
The encoder boards (ATmega328P, Atmega2560, Apple2(2560) can accomodate
keyboard matrices with no diodes, by adding per-row diodes on the
encoder board.  For keyboards with per-key diodes (the typical use
case), the per-row diodes are not needed, and therefore the footprints
should be shunted by default, using a special shunted diode footprint.
When diodes are installed, the shunt can be cut with an x-acto knife.
Previous board revs had the correct footprint, but somehow the regular
diode footprint was substituted on the last release of each of these
PCBS.  The correct footprint has been restored.
2021-08-08 13:16:38 -05:00

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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
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encoding utf-8
Sheet 1 1
Title "Unified Retro Keyboard ASCII Interface (2560)"
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2400 5500 1400 5500
Wire Wire Line
2400 5600 1400 5600
Wire Wire Line
2400 5100 1400 5100
Wire Wire Line
2400 5200 1400 5200
Wire Wire Line
2400 7800 1400 7800
Wire Wire Line
2400 7900 1400 7900
Wire Wire Line
2400 8300 1400 8300
Wire Wire Line
1400 8500 2400 8500
Wire Wire Line
2100 8600 2100 7100
Connection ~ 2100 8600
Wire Wire Line
2400 5900 1400 5900
Wire Wire Line
2400 6000 1400 6000
Wire Wire Line
2400 6100 1400 6100
Wire Wire Line
2400 6200 1400 6200
$Comp
L Device:R_US R1
U 1 1 5E9E37FE
P 5600 1700
F 0 "R1" H 5668 1746 50 0000 L CNN
F 1 "10k" H 5668 1655 50 0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 5640 1690 50 0001 C CNN
F 3 "~" H 5600 1700 50 0001 C CNN
1 5600 1700
1 0 0 -1
$EndComp
Wire Wire Line
5600 1850 5600 2700
$Comp
L Device:Crystal Y1
U 1 1 5EA2E720
P 6350 1950
F 0 "Y1" H 6350 1682 50 0000 C CNN
F 1 "16.000 MHz" H 6350 1773 50 0000 C CNN
F 2 "Crystal:Crystal_SMD_HC49-SD_HandSoldering" H 6350 1950 50 0001 C CNN
F 3 "~" H 6350 1950 50 0001 C CNN
1 6350 1950
-1 0 0 1
$EndComp
$Comp
L Device:C C1
U 1 1 5EA513C7
P 6050 2200
F 0 "C1" H 6165 2246 50 0000 L CNN
F 1 "36pf" H 6165 2155 50 0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm" H 6088 2050 50 0001 C CNN
F 3 "~" H 6050 2200 50 0001 C CNN
1 6050 2200
1 0 0 -1
$EndComp
$Comp
L Device:C C2
U 1 1 5EA526AF
P 6650 2200
F 0 "C2" H 6765 2246 50 0000 L CNN
F 1 "36pf" H 6765 2155 50 0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm" H 6688 2050 50 0001 C CNN
F 3 "~" H 6650 2200 50 0001 C CNN
1 6650 2200
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR014
U 1 1 5EA55577
P 6050 2350
F 0 "#PWR014" H 6050 2100 50 0001 C CNN
F 1 "GND" H 6055 2177 50 0000 C CNN
F 2 "" H 6050 2350 50 0001 C CNN
F 3 "" H 6050 2350 50 0001 C CNN
1 6050 2350
1 0 0 -1
$EndComp
Wire Wire Line
7300 2300 7300 1550
Wire Wire Line
7300 1550 6050 1550
Wire Wire Line
6050 1550 6050 1950
Wire Wire Line
6650 2050 6650 1950
Wire Wire Line
6650 1950 7200 1950
Wire Wire Line
7200 2500 7300 2500
Wire Wire Line
6500 1950 6650 1950
Connection ~ 6650 1950
Wire Wire Line
6200 1950 6050 1950
Connection ~ 6050 1950
Wire Wire Line
6050 1950 6050 2050
Wire Wire Line
7200 1950 7200 2500
Entry Wire Line
15800 3200 15900 3300
Entry Wire Line
15800 2800 15900 2900
Entry Wire Line
10700 3600 10600 3500
Entry Wire Line
10700 4000 10600 3900
Entry Wire Line
10700 4300 10600 4200
Entry Wire Line
10700 3800 10600 3700
Entry Wire Line
10700 4100 10600 4000
Entry Wire Line
10700 3700 10600 3600
Entry Wire Line
10700 4200 10600 4100
Entry Wire Line
10700 3900 10600 3800
$Comp
L Diode:1N4148 D9
U 1 1 5E301C34
P 10150 3500
F 0 "D9" H 11000 3500 50 0000 C CNN
F 1 "1N4148" H 10090 3610 50 0000 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 10150 3325 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10150 3500 50 0001 C CNN
1 10150 3500
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D1
U 1 1 5E36B862
P 9950 3600
F 0 "D1" H 11000 3600 50 0000 C CNN
F 1 "1N4148" H 9748 3640 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 9950 3425 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 9950 3600 50 0001 C CNN
1 9950 3600
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D10
U 1 1 5E3942E4
P 10150 3700
F 0 "D10" H 11000 3700 50 0000 C CNN
F 1 "1N4148" H 9948 3740 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 10150 3525 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10150 3700 50 0001 C CNN
1 10150 3700
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D2
U 1 1 5E357678
P 9950 3800
F 0 "D2" H 11000 3800 50 0000 C CNN
F 1 "1N4148" H 9748 3840 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 9950 3625 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 9950 3800 50 0001 C CNN
1 9950 3800
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D11
U 1 1 5E37FC86
P 10150 3900
F 0 "D11" H 11000 3900 50 0000 C CNN
F 1 "1N4148" H 9948 3940 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 10150 3725 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10150 3900 50 0001 C CNN
1 10150 3900
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D3
U 1 1 5E34160D
P 9950 4000
F 0 "D3" H 11000 4000 50 0000 C CNN
F 1 "1N4148" H 9748 4040 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 9950 3825 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 9950 4000 50 0001 C CNN
1 9950 4000
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D12
U 1 1 5E32CB02
P 10150 4100
F 0 "D12" H 11000 4100 50 0000 C CNN
F 1 "1N4148" H 9948 4140 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 10150 3925 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10150 4100 50 0001 C CNN
1 10150 4100
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D4
U 1 1 5E316F0B
P 9950 4200
F 0 "D4" H 11000 4200 50 0000 C CNN
F 1 "1N4148" H 9748 4240 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 9950 4025 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 9950 4200 50 0001 C CNN
1 9950 4200
1 0 0 -1
$EndComp
Text Label 10480 3900 2 50 ~ 0
Row4
Text Label 10480 4000 2 50 ~ 0
Row5
Text Label 10480 4100 2 50 ~ 0
Row6
Text Label 10480 4200 2 50 ~ 0
Row7
Text Label 10480 3800 2 50 ~ 0
Row3
Text Label 10480 3700 2 50 ~ 0
Row2
Text Label 10480 3500 2 50 ~ 0
Row0
Entry Wire Line
10700 4600 10600 4500
Entry Wire Line
10700 5300 10600 5200
Entry Wire Line
10700 5200 10600 5100
Entry Wire Line
10700 5100 10600 5000
Entry Wire Line
10700 5000 10600 4900
Entry Wire Line
10700 4900 10600 4800
Entry Wire Line
10700 4800 10600 4700
Entry Wire Line
10700 4700 10600 4600
Text Label 10500 3100 2 50 ~ 0
Col6
Text Label 10500 3000 2 50 ~ 0
Col5
Text Label 10500 2900 2 50 ~ 0
Col4
Text Label 10500 2800 2 50 ~ 0
Col3
Text Label 10500 2700 2 50 ~ 0
Col2
Text Label 10500 2600 2 50 ~ 0
Col1
Text Label 10500 2500 2 50 ~ 0
Col0
Text Label 10500 3200 2 50 ~ 0
Col7
$Comp
L Device:R_Network08_US RN1
U 1 1 5C0319BC
P 9800 1400
F 0 "RN1" H 10180 1446 50 0000 L CNN
F 1 "4.7k" H 10180 1355 50 0000 L CNN
F 2 "Resistor_THT:R_Array_SIP9" V 10275 1400 50 0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 9800 1400 50 0001 C CNN
1 9800 1400
1 0 0 -1
$EndComp
Wire Wire Line
10600 3500 10300 3500
Wire Wire Line
10600 3600 10100 3600
Wire Wire Line
10300 3700 10600 3700
Wire Wire Line
10600 3800 10100 3800
Wire Wire Line
10600 3900 10300 3900
Wire Wire Line
10600 4000 10100 4000
Wire Wire Line
10600 4100 10300 4100
Wire Wire Line
10600 4200 10100 4200
Entry Wire Line
10700 2600 10600 2500
Entry Wire Line
10700 3000 10600 2900
Entry Wire Line
10700 3300 10600 3200
Entry Wire Line
10700 2800 10600 2700
Entry Wire Line
10700 3100 10600 3000
Entry Wire Line
10700 2700 10600 2600
Entry Wire Line
10700 3200 10600 3100
Entry Wire Line
10700 2900 10600 2800
$Comp
L Diode:1N4148 D13
U 1 1 5F1EFED9
P 10150 4500
F 0 "D13" H 11000 4500 50 0000 C CNN
F 1 "1N4148" H 10090 4610 50 0000 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 10150 4325 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10150 4500 50 0001 C CNN
1 10150 4500
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D5
U 1 1 5F1EFEDF
P 9950 4600
F 0 "D5" H 11000 4600 50 0000 C CNN
F 1 "1N4148" H 9748 4640 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 9950 4425 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 9950 4600 50 0001 C CNN
1 9950 4600
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D14
U 1 1 5F1EFEE5
P 10150 4700
F 0 "D14" H 11000 4700 50 0000 C CNN
F 1 "1N4148" H 9948 4740 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 10150 4525 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10150 4700 50 0001 C CNN
1 10150 4700
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D6
U 1 1 5F1EFEEB
P 9950 4800
F 0 "D6" H 11000 4800 50 0000 C CNN
F 1 "1N4148" H 9748 4840 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 9950 4625 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 9950 4800 50 0001 C CNN
1 9950 4800
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D15
U 1 1 5F1EFEF1
P 10150 4900
F 0 "D15" H 11000 4900 50 0000 C CNN
F 1 "1N4148" H 9948 4940 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 10150 4725 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10150 4900 50 0001 C CNN
1 10150 4900
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D7
U 1 1 5F1EFEF7
P 9950 5000
F 0 "D7" H 11000 5000 50 0000 C CNN
F 1 "1N4148" H 9748 5040 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 9950 4825 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 9950 5000 50 0001 C CNN
1 9950 5000
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D16
U 1 1 5F1EFEFD
P 10150 5100
F 0 "D16" H 11000 5100 50 0000 C CNN
F 1 "1N4148" H 9948 5140 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 10150 4925 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10150 5100 50 0001 C CNN
1 10150 5100
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D8
U 1 1 5F1EFF03
P 9950 5200
F 0 "D8" H 11000 5200 50 0000 C CNN
F 1 "1N4148" H 9748 5240 50 0001 C CNN
F 2 "unikbd:D_DO-35_SOD27_P7.62mm_Horizontal_bypassed" H 9950 5025 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 9950 5200 50 0001 C CNN
1 9950 5200
1 0 0 -1
$EndComp
Text Label 10480 4900 2 50 ~ 0
Row12
Text Label 10480 5000 2 50 ~ 0
Row13
Text Label 10480 5100 2 50 ~ 0
Row14
Text Label 10480 5200 2 50 ~ 0
Row15
Text Label 10480 4800 2 50 ~ 0
Row11
Text Label 10480 4700 2 50 ~ 0
Row10
Text Label 10480 4500 2 50 ~ 0
Row8
Wire Wire Line
10600 4500 10300 4500
Wire Wire Line
10600 4600 10100 4600
Wire Wire Line
10300 4700 10600 4700
Wire Wire Line
10600 4800 10100 4800
Wire Wire Line
10600 4900 10300 4900
Wire Wire Line
10600 5000 10100 5000
Wire Wire Line
10600 5100 10300 5100
Wire Wire Line
10600 5200 10100 5200
Text Label 10300 3600 0 50 ~ 0
Row1
Text Label 10280 4600 0 50 ~ 0
Row9
Wire Wire Line
10000 3500 8900 3500
Wire Wire Line
8900 3600 9800 3600
Wire Wire Line
10000 3700 8900 3700
Wire Wire Line
8900 3800 9800 3800
Wire Wire Line
10000 3900 8900 3900
Wire Wire Line
8900 4000 9800 4000
Wire Wire Line
10000 4100 8900 4100
Wire Wire Line
8900 4200 9800 4200
Wire Wire Line
10000 4500 8900 4500
Wire Wire Line
8900 4600 9800 4600
Wire Wire Line
10000 4700 8900 4700
Wire Wire Line
8900 4800 9800 4800
Wire Wire Line
10000 4900 8900 4900
Wire Wire Line
8900 5000 9800 5000
Wire Wire Line
10000 5100 8900 5100
Wire Wire Line
8900 5200 9800 5200
Wire Bus Line
10700 8200 13500 8200
Wire Wire Line
8300 8800 8300 8700
Wire Wire Line
8200 8400 8200 8700
Wire Wire Line
8200 8700 8100 8700
Connection ~ 8100 8700
Wire Wire Line
8100 8700 8100 8400
Wire Wire Line
8100 8700 8000 8700
Wire Wire Line
8000 8700 8000 8400
Wire Wire Line
7900 8400 7900 8700
Wire Wire Line
7900 8700 8000 8700
Connection ~ 8000 8700
Wire Wire Line
8200 8700 8300 8700
Wire Wire Line
8300 8700 8300 8400
Connection ~ 8200 8700
Connection ~ 8300 8700
Wire Wire Line
8400 1600 8400 1500
Wire Wire Line
8900 2500 9400 2500
Wire Wire Line
8900 2600 9500 2600
Wire Wire Line
8900 2700 9600 2700
Wire Wire Line
8900 2800 9700 2800
Wire Wire Line
8900 2900 9800 2900
Wire Wire Line
8900 3000 9900 3000
Wire Wire Line
8900 3100 10000 3100
Wire Wire Line
8900 3200 10100 3200
Wire Wire Line
9400 1600 9400 2500
Connection ~ 9400 2500
Wire Wire Line
9400 2500 10600 2500
Wire Wire Line
9500 1600 9500 2600
Connection ~ 9500 2600
Wire Wire Line
9500 2600 10600 2600
Wire Wire Line
9600 1600 9600 2700
Connection ~ 9600 2700
Wire Wire Line
9600 2700 10600 2700
Wire Wire Line
9700 2800 9700 1600
Connection ~ 9700 2800
Wire Wire Line
9700 2800 10600 2800
Wire Wire Line
9800 1600 9800 2900
Connection ~ 9800 2900
Wire Wire Line
9800 2900 10600 2900
Wire Wire Line
9900 3000 9900 1600
Connection ~ 9900 3000
Wire Wire Line
9900 3000 10600 3000
Wire Wire Line
10000 1600 10000 3100
Connection ~ 10000 3100
Wire Wire Line
10000 3100 10600 3100
Wire Wire Line
10100 3200 10100 1600
Connection ~ 10100 3200
Wire Wire Line
10100 3200 10600 3200
Wire Wire Line
9400 1100 9400 1200
Entry Wire Line
2400 2300 2500 2400
Entry Wire Line
2400 2400 2500 2500
Entry Wire Line
2400 2500 2500 2600
Entry Wire Line
2400 2600 2500 2700
Entry Wire Line
2400 2700 2500 2800
Entry Wire Line
2400 2800 2500 2900
Entry Wire Line
2400 1100 2500 1200
Entry Wire Line
2400 1200 2500 1300
Entry Wire Line
2400 1300 2500 1400
Entry Wire Line
2400 3300 2500 3400
Entry Wire Line
2400 3400 2500 3500
Entry Wire Line
2400 3500 2500 3600
Entry Wire Line
2400 3600 2500 3700
Entry Wire Line
2400 3700 2500 3800
Entry Wire Line
2400 3800 2500 3900
Entry Wire Line
2400 7200 2500 7100
Entry Wire Line
2400 7300 2500 7200
Entry Wire Line
2400 7400 2500 7300
Entry Wire Line
2400 7500 2500 7400
Entry Wire Line
2400 7600 2500 7500
Entry Wire Line
2400 7700 2500 7600
Entry Wire Line
2400 7800 2500 7700
Entry Wire Line
2400 7900 2500 7800
Entry Wire Line
2400 8300 2500 8200
Entry Wire Line
2400 8500 2500 8400
Entry Wire Line
2400 5100 2500 5000
Entry Wire Line
2400 5200 2500 5100
Entry Wire Line
2400 5400 2500 5300
Entry Wire Line
2400 5500 2500 5400
Entry Wire Line
2400 5600 2500 5500
Entry Wire Line
2400 5900 2500 5800
Entry Wire Line
2400 6000 2500 5900
Entry Wire Line
2400 6100 2500 6000
Entry Wire Line
2400 6200 2500 6100
Entry Wire Line
6000 7000 6100 7100
Entry Wire Line
6000 7200 6100 7300
Entry Wire Line
6000 7300 6100 7400
Entry Wire Line
6000 7400 6100 7500
Entry Wire Line
6000 7500 6100 7600
Entry Wire Line
6000 7600 6100 7700
Entry Wire Line
6000 7700 6100 7800
Entry Wire Line
6000 7100 6100 7200
Wire Wire Line
6100 7800 7300 7800
Wire Wire Line
7300 7700 6100 7700
Wire Wire Line
6100 7600 7300 7600
Wire Wire Line
7300 7500 6100 7500
Wire Wire Line
6100 7400 7300 7400
Wire Wire Line
7300 7300 6100 7300
Wire Wire Line
6100 7200 7300 7200
Wire Wire Line
7300 7100 6100 7100
Wire Bus Line
6000 4600 2500 4600
Connection ~ 2500 4600
Text Label 6400 7100 0 50 ~ 0
D0
Text Label 6400 7200 0 50 ~ 0
D1
Text Label 6400 7300 0 50 ~ 0
D2
Text Label 6400 7400 0 50 ~ 0
D3
Text Label 6400 7500 0 50 ~ 0
D4
Text Label 6400 7600 0 50 ~ 0
D5
Text Label 6400 7700 0 50 ~ 0
D6
Text Label 6400 7800 0 50 ~ 0
D7
Wire Wire Line
1400 9300 1500 9300
Wire Wire Line
1400 9600 1500 9600
Wire Wire Line
1500 9600 1500 9800
Wire Wire Line
1400 9500 2850 9500
Wire Wire Line
2850 9500 2850 5900
Wire Wire Line
2850 5900 7300 5900
Wire Wire Line
1400 9400 2950 9400
Wire Wire Line
2950 9400 2950 6000
Wire Wire Line
2950 6000 7300 6000
Entry Wire Line
10600 7900 10700 7800
Entry Wire Line
10600 7800 10700 7700
Entry Wire Line
10600 7700 10700 7600
Wire Wire Line
10600 7900 8900 7900
Wire Wire Line
8900 7800 10600 7800
Wire Wire Line
10600 7700 8900 7700
Text Label 9400 7700 0 50 ~ 0
LED1
Text Label 9400 7800 0 50 ~ 0
LED2
Text Label 9400 7900 0 50 ~ 0
LED3
Entry Wire Line
6000 5400 6100 5300
Entry Wire Line
6000 5500 6100 5400
Entry Wire Line
6000 5600 6100 5500
Entry Wire Line
6000 5700 6100 5600
Wire Wire Line
6100 5300 7300 5300
Wire Wire Line
7300 5400 6100 5400
Wire Wire Line
6100 5500 7300 5500
Wire Wire Line
6100 5600 7300 5600
Text Label 6400 5300 0 50 ~ 0
~STROBE
Text Label 6400 5400 0 50 ~ 0
OUT1
Text Label 6400 5500 0 50 ~ 0
OUT2
Text Label 6400 5600 0 50 ~ 0
OUT3
Wire Wire Line
14800 3700 15800 3700
Wire Wire Line
14800 3800 15800 3800
Wire Wire Line
14800 3900 15800 3900
Wire Wire Line
14800 4000 15800 4000
Wire Wire Line
14800 3200 15800 3200
Wire Wire Line
15205 3000 15800 3000
Wire Wire Line
14800 2900 15800 2900
Wire Wire Line
14800 2800 15800 2800
Wire Wire Line
15205 2600 15800 2600
Wire Wire Line
14800 2500 15800 2500
Wire Wire Line
14800 2400 15800 2400
Wire Wire Line
15200 2200 15800 2200
Wire Wire Line
14800 2100 15800 2100
Wire Wire Line
14300 6600 14100 6600
Wire Wire Line
14100 6600 14100 6700
Wire Wire Line
14100 7300 13600 7300
Wire Wire Line
14300 7300 14100 7300
Connection ~ 14100 7300
Wire Wire Line
14300 7200 14100 7200
Connection ~ 14100 7200
Wire Wire Line
14100 7200 14100 7300
Wire Wire Line
14300 7100 14100 7100
Connection ~ 14100 7100
Wire Wire Line
14100 7100 14100 7200
Wire Wire Line
14300 7000 14100 7000
Connection ~ 14100 7000
Wire Wire Line
14100 7000 14100 7100
Wire Wire Line
14300 6900 14100 6900
Connection ~ 14100 6900
Wire Wire Line
14100 6900 14100 7000
Wire Wire Line
14300 6800 14100 6800
Connection ~ 14100 6800
Wire Wire Line
14100 6800 14100 6900
Wire Wire Line
14300 6700 14100 6700
Connection ~ 14100 6700
Wire Wire Line
14100 6700 14100 6800
NoConn ~ 14800 3300
NoConn ~ 14800 3400
NoConn ~ 14800 3500
NoConn ~ 14800 3600
NoConn ~ 8900 5500
NoConn ~ 8900 5600
NoConn ~ 8900 5700
NoConn ~ 8900 5800
NoConn ~ 8900 5900
NoConn ~ 8900 6000
NoConn ~ 8900 6100
NoConn ~ 8900 6200
NoConn ~ 8900 6500
NoConn ~ 8900 6600
NoConn ~ 8900 6700
NoConn ~ 8900 6800
NoConn ~ 8900 6900
NoConn ~ 8900 7000
NoConn ~ 8900 7200
NoConn ~ 8900 7300
NoConn ~ 8900 7400
NoConn ~ 8900 7500
NoConn ~ 8900 7600
NoConn ~ 7300 6600
NoConn ~ 7300 6500
NoConn ~ 7300 6400
NoConn ~ 7300 6300
NoConn ~ 7300 6200
NoConn ~ 7300 6100
NoConn ~ 7300 4900
NoConn ~ 7300 4700
NoConn ~ 7300 4600
NoConn ~ 7300 4500
NoConn ~ 7300 4400
NoConn ~ 7300 4300
NoConn ~ 7300 4200
NoConn ~ 7300 4100
NoConn ~ 7300 4000
Wire Bus Line
15900 8200 13500 8200
Connection ~ 13500 8200
$Comp
L unikbd:ATmega2560-16AU U1
U 1 1 5EC4527C
P 8100 4900
F 0 "U1" H 7500 7800 50 0000 C CNN
F 1 "ATmega2560-16AU" H 8100 5100 50 0000 C CNN
F 2 "Package_QFP:TQFP-100_14x14mm_P0.5mm" H 8100 4600 50 0001 C CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-2549-8-bit-AVR-Microcontroller-ATmega640-1280-1281-2560-2561_datasheet.pdf" H 8100 4900 50 0001 C CNN
1 8100 4900
1 0 0 -1
$EndComp
NoConn ~ 7300 2900
NoConn ~ 7300 3100
NoConn ~ 2000 8900
$Comp
L power:GND #PWR03
U 1 1 5F4E6EA5
P 1900 6500
F 0 "#PWR03" H 1900 6250 50 0001 C CNN
F 1 "GND" H 1905 6327 50 0000 C CNN
F 2 "" H 1900 6500 50 0001 C CNN
F 3 "" H 1900 6500 50 0001 C CNN
1 1900 6500
1 0 0 -1
$EndComp
Wire Wire Line
1900 5700 1900 6500
$Comp
L power:GND #PWR015
U 1 1 5F52426A
P 6650 2350
F 0 "#PWR015" H 6650 2100 50 0001 C CNN
F 1 "GND" H 6655 2177 50 0000 C CNN
F 2 "" H 6650 2350 50 0001 C CNN
F 3 "" H 6650 2350 50 0001 C CNN
1 6650 2350
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR02
U 1 1 5F545084
P 1500 9800
F 0 "#PWR02" H 1500 9550 50 0001 C CNN
F 1 "GND" H 1505 9627 50 0000 C CNN
F 2 "" H 1500 9800 50 0001 C CNN
F 3 "" H 1500 9800 50 0001 C CNN
1 1500 9800
1 0 0 -1
$EndComp
Wire Wire Line
8400 2000 8400 1600
Connection ~ 8400 1600
Wire Wire Line
9900 9200 9900 9100
Wire Wire Line
9900 9900 9900 10000
$Comp
L power:GND #PWR020
U 1 1 5F67BB8A
P 9900 10000
F 0 "#PWR020" H 9900 9750 50 0001 C CNN
F 1 "GND" H 9905 9827 50 0000 C CNN
F 2 "" H 9900 10000 50 0001 C CNN
F 3 "" H 9900 10000 50 0001 C CNN
1 9900 10000
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR019
U 1 1 5F67CB37
P 9900 9100
F 0 "#PWR019" H 9900 8950 50 0001 C CNN
F 1 "VCC" H 9917 9273 50 0000 C CNN
F 2 "" H 9900 9100 50 0001 C CNN
F 3 "" H 9900 9100 50 0001 C CNN
1 9900 9100
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR09
U 1 1 5F6991B1
P 2200 800
F 0 "#PWR09" H 2200 650 50 0001 C CNN
F 1 "VCC" H 2217 973 50 0000 C CNN
F 2 "" H 2200 800 50 0001 C CNN
F 3 "" H 2200 800 50 0001 C CNN
1 2200 800
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR017
U 1 1 5F6B5112
P 8400 1500
F 0 "#PWR017" H 8400 1350 50 0001 C CNN
F 1 "VCC" H 8417 1673 50 0000 C CNN
F 2 "" H 8400 1500 50 0001 C CNN
F 3 "" H 8400 1500 50 0001 C CNN
1 8400 1500
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR013
U 1 1 5EA2D073
P 5600 1550
F 0 "#PWR013" H 5600 1400 50 0001 C CNN
F 1 "VCC" H 5615 1723 50 0000 C CNN
F 2 "" H 5600 1550 50 0001 C CNN
F 3 "" H 5600 1550 50 0001 C CNN
1 5600 1550
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR018
U 1 1 5F6EF09C
P 9400 1100
F 0 "#PWR018" H 9400 950 50 0001 C CNN
F 1 "VCC" H 9417 1273 50 0000 C CNN
F 2 "" H 9400 1100 50 0001 C CNN
F 3 "" H 9400 1100 50 0001 C CNN
1 9400 1100
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR010
U 1 1 5F70BC32
P 2200 2000
F 0 "#PWR010" H 2200 1850 50 0001 C CNN
F 1 "VCC" H 2217 2173 50 0000 C CNN
F 2 "" H 2200 2000 50 0001 C CNN
F 3 "" H 2200 2000 50 0001 C CNN
1 2200 2000
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR07
U 1 1 5F727A3A
P 2100 4800
F 0 "#PWR07" H 2100 4650 50 0001 C CNN
F 1 "VCC" H 2117 4973 50 0000 C CNN
F 2 "" H 2100 4800 50 0001 C CNN
F 3 "" H 2100 4800 50 0001 C CNN
1 2100 4800
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR01
U 1 1 5DFE19CD
P 1500 9250
F 0 "#PWR01" H 1500 9100 50 0001 C CNN
F 1 "VCC" H 1515 9423 50 0000 C CNN
F 2 "" H 1500 9250 50 0001 C CNN
F 3 "" H 1500 9250 50 0001 C CNN
1 1500 9250
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR08
U 1 1 5F7602B8
P 2100 7100
F 0 "#PWR08" H 2100 6950 50 0001 C CNN
F 1 "VCC" H 2117 7273 50 0000 C CNN
F 2 "" H 2100 7100 50 0001 C CNN
F 3 "" H 2100 7100 50 0001 C CNN
1 2100 7100
1 0 0 -1
$EndComp
Wire Wire Line
10100 9400 10100 9200
Connection ~ 10100 9200
Wire Wire Line
10100 9200 9900 9200
Wire Wire Line
10500 9400 10500 9200
Connection ~ 10500 9200
Wire Wire Line
10500 9200 10100 9200
Wire Wire Line
10900 9400 10900 9200
Connection ~ 10900 9200
Wire Wire Line
10900 9200 10500 9200
Wire Wire Line
11300 9400 11300 9200
Connection ~ 11300 9200
Wire Wire Line
11300 9200 10900 9200
Wire Wire Line
11300 9700 11300 9900
Connection ~ 11300 9900
Wire Wire Line
11300 9900 10900 9900
Wire Wire Line
10900 9700 10900 9900
Connection ~ 10900 9900
Wire Wire Line
10900 9900 10500 9900
Wire Wire Line
10500 9900 10500 9700
Connection ~ 10500 9900
Wire Wire Line
10500 9900 10100 9900
Wire Wire Line
10100 9700 10100 9900
Connection ~ 10100 9900
Wire Wire Line
10100 9900 9900 9900
$Comp
L power:PWR_FLAG #FLG01
U 1 1 5F848CA1
P 11500 9200
F 0 "#FLG01" H 11500 9275 50 0001 C CNN
F 1 "PWR_FLAG" H 11500 9373 50 0000 C CNN
F 2 "" H 11500 9200 50 0001 C CNN
F 3 "~" H 11500 9200 50 0001 C CNN
1 11500 9200
1 0 0 -1
$EndComp
Wire Wire Line
11500 9200 11300 9200
$Comp
L power:PWR_FLAG #FLG02
U 1 1 5F84A535
P 11500 9900
F 0 "#FLG02" H 11500 9975 50 0001 C CNN
F 1 "PWR_FLAG" H 11500 10073 50 0000 C CNN
F 2 "" H 11500 9900 50 0001 C CNN
F 3 "~" H 11500 9900 50 0001 C CNN
1 11500 9900
-1 0 0 1
$EndComp
Wire Wire Line
11500 9900 11300 9900
$Comp
L power:VCC #PWR012
U 1 1 5F86A206
P 4850 1950
F 0 "#PWR012" H 4850 1800 50 0001 C CNN
F 1 "VCC" H 4867 2123 50 0000 C CNN
F 2 "" H 4850 1950 50 0001 C CNN
F 3 "" H 4850 1950 50 0001 C CNN
1 4850 1950
1 0 0 -1
$EndComp
Text Label 13800 7300 0 50 ~ 0
Row8
$Comp
L Connector_Generic:Conn_02x08_Counter_Clockwise J7
U 1 1 5E9AC1D6
P 12000 1650
F 0 "J7" H 12050 2167 50 0000 C CNN
F 1 "Custom Connector 1 / Proto" H 12050 2076 50 0000 C CNN
F 2 "unikbd:DIP-16_W7.62mm_Proto" H 12000 1650 50 0001 C CNN
F 3 "~" H 12000 1650 50 0001 C CNN
1 12000 1650
1 0 0 -1
$EndComp
NoConn ~ 12300 1350
NoConn ~ 12300 1450
NoConn ~ 12300 1550
NoConn ~ 12300 1650
NoConn ~ 12300 1750
NoConn ~ 12300 1850
NoConn ~ 12300 1950
NoConn ~ 12300 2050
NoConn ~ 11800 2050
NoConn ~ 11800 1950
NoConn ~ 11800 1850
NoConn ~ 11800 1750
NoConn ~ 11800 1650
NoConn ~ 11800 1550
NoConn ~ 11800 1450
NoConn ~ 11800 1350
Wire Wire Line
3550 2300 4200 2300
Wire Wire Line
3550 3100 4200 3100
Connection ~ 4200 3100
Wire Wire Line
4200 3100 4200 3700
Wire Wire Line
4200 2300 4200 3100
Wire Wire Line
3550 2200 4600 2200
Wire Wire Line
4600 2200 4600 2800
Wire Wire Line
4600 2800 5850 2800
Wire Wire Line
5800 2900 4500 2900
Wire Wire Line
4500 2900 4500 2600
Wire Wire Line
4500 2600 3550 2600
Wire Wire Line
5750 3000 4400 3000
Wire Wire Line
4400 3000 4400 2400
Wire Wire Line
4400 2400 3550 2400
Wire Wire Line
5700 3100 4300 3100
Wire Wire Line
4300 3100 4300 3000
Wire Wire Line
4300 3000 3550 3000
Text Label 3700 2200 0 50 ~ 0
TCK
Text Label 3700 2400 0 50 ~ 0
TDO
Text Label 3700 2600 0 50 ~ 0
TMS
Text Label 3700 2700 0 50 ~ 0
~RESET
Text Label 3700 3000 0 50 ~ 0
TDI
NoConn ~ 3550 2800
NoConn ~ 3550 2900
NoConn ~ 7300 3200
NoConn ~ 7300 3300
NoConn ~ 7300 3400
$Comp
L Connector_Generic:Conn_01x25 J8
U 1 1 5F355459
P 11950 4650
F 0 "J8" H 11868 6067 50 0000 C CNN
F 1 "Custom Connector 2" H 11868 5976 50 0000 C CNN
F 2 "unikbd:ExpansionHeader_1x25_P2.54" H 11950 4650 50 0001 C CNN
F 3 "~" H 11950 4650 50 0001 C CNN
1 11950 4650
-1 0 0 -1
$EndComp
NoConn ~ 12150 3450
NoConn ~ 12150 3550
NoConn ~ 12150 3650
NoConn ~ 12150 3750
NoConn ~ 12150 3850
NoConn ~ 12150 3950
NoConn ~ 12150 4050
NoConn ~ 12150 4150
NoConn ~ 12150 4250
NoConn ~ 12150 4350
NoConn ~ 12150 4450
NoConn ~ 12150 4550
NoConn ~ 12150 5850
NoConn ~ 12150 5750
NoConn ~ 12150 5650
NoConn ~ 12150 5550
NoConn ~ 12150 5450
NoConn ~ 12150 5350
NoConn ~ 12150 5250
NoConn ~ 12150 5150
NoConn ~ 12150 5050
NoConn ~ 12150 4950
NoConn ~ 12150 4850
NoConn ~ 12150 4750
NoConn ~ 12150 4650
$Comp
L Connector_Generic:Conn_01x16 J6
U 1 1 5ED55F89
P 3350 2900
F 0 "J6" H 3268 3817 50 0000 C CNN
F 1 "Conn_01x16" H 3268 3726 50 0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Horizontal" H 3350 2900 50 0001 C CNN
F 3 "~" H 3350 2900 50 0001 C CNN
1 3350 2900
-1 0 0 -1
$EndComp
Connection ~ 5600 2700
Wire Wire Line
5700 3100 5700 3800
Wire Wire Line
5700 3800 7300 3800
Wire Wire Line
5750 3000 5750 3700
Wire Wire Line
5750 3700 7300 3700
Wire Wire Line
7300 3600 5800 3600
Wire Wire Line
5800 3600 5800 2900
Wire Wire Line
5850 2800 5850 3500
Wire Wire Line
5850 3500 7300 3500
Wire Wire Line
3550 3200 5500 3200
Wire Wire Line
5500 3200 5500 4000
Wire Wire Line
5500 4000 6250 4000
Wire Wire Line
6250 4000 6250 5200
Wire Wire Line
6250 5200 7300 5200
Wire Wire Line
5200 3500 5200 4100
Wire Wire Line
5200 4100 6150 4100
Wire Wire Line
6150 4100 6150 5100
Wire Wire Line
6150 5100 7300 5100
Wire Wire Line
5200 3500 3550 3500
Wire Wire Line
3550 3300 4850 3300
Wire Wire Line
4850 3300 4850 2500
Connection ~ 4850 2500
Wire Wire Line
3550 3700 4200 3700
Connection ~ 4200 3700
Wire Wire Line
4200 3700 4200 3850
Wire Wire Line
3550 3600 4050 3600
Wire Wire Line
4050 3600 4050 2700
Connection ~ 4050 2700
Wire Wire Line
4050 2700 5600 2700
Wire Wire Line
3550 3400 5350 3400
Wire Wire Line
5350 3400 5350 4050
Wire Wire Line
5350 4050 6200 4050
Wire Wire Line
6200 4050 6200 5000
Wire Wire Line
6200 5000 7300 5000
Text Label 3700 3400 0 50 ~ 0
SCK
Text Label 3700 3200 0 50 ~ 0
MISO
Text Label 3700 3500 0 50 ~ 0
MOSI
Wire Bus Line
2500 1200 2500 4600
Wire Bus Line
6000 4600 6000 7700
Wire Bus Line
2500 4600 2500 8400
Wire Bus Line
13500 2200 13500 8200
Wire Bus Line
15900 2200 15900 8200
Wire Bus Line
10700 2600 10700 8200
$EndSCHEMATC
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