add small sim for audio output

2019-12-16 00:00:41 +01:00 · 2019-12-16 00:00:41 +01:00 · 61d34f3cdb
parent 5253fdd58c
commit 61d34f3cdb
5 changed files with 1333 additions and 1063 deletions
--- a/kicad/synth_plate-cache.lib
+++ b/kicad/synth_plate-cache.lib
@ -174,26 +174,6 @@ X S 3 100 -200 100 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
-# Device_R_POT
-#
-DEF Device_R_POT RV 0 40 Y N 1 F N
-F0 "RV" -175 0 50 V V C CNN
-F1 "Device_R_POT" -100 0 50 V V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- Potentiometer*
-$ENDFPLIST
-DRAW
-S 40 100 -40 -100 0 1 10 N
-P 2 0 1 0 100 0 60 0 N
-P 4 0 1 0 45 0 90 20 90 -20 45 0 F
-X 1 1 0 150 50 D 50 50 1 1 P
-X 2 2 150 0 50 L 50 50 1 1 P
-X 3 3 0 -150 50 U 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
 # Device_R_Small
 #
 DEF Device_R_Small R 0 10 N N 1 F N
@ -266,6 +246,30 @@ X 1 1 0 -100 100 U 50 50 1 1 I
 ENDDRAW
 ENDDEF
 #
+# Switch_SW_DPDT_x2
+#
+DEF Switch_SW_DPDT_x2 SW 0 0 Y N 2 F N
+F0 "SW" 0 170 50 H V C CNN
+F1 "Switch_SW_DPDT_x2" 0 -200 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ SW*DPDT*
+$ENDFPLIST
+DRAW
+C -80 0 20 0 0 0 N
+C 80 -100 20 0 0 0 N
+C 80 100 20 0 1 0 N
+P 2 0 1 0 -60 10 65 90 N
+X A 1 200 100 100 L 50 50 1 1 P
+X B 2 -200 0 100 R 50 50 1 1 P
+X C 3 200 -100 100 L 50 50 1 1 P
+X A 4 200 100 100 L 50 50 2 1 P
+X B 5 -200 0 100 R 50 50 2 1 P
+X C 6 200 -100 100 L 50 50 2 1 P
+ENDDRAW
+ENDDEF
+#
 # Switch_SW_Push
 #
 DEF Switch_SW_Push SW 0 40 N N 1 F N
--- a/kicad/synth_plate.kicad_pcb
+++ b/kicad/synth_plate.kicad_pcb
--- a/kicad/synth_plate.sch
+++ b/kicad/synth_plate.sch
@ -58,41 +58,41 @@ Wire Wire Line
 $Comp
 L Device:Battery BT1
 U 1 1 5DF595DA
-P 1050 1350
-F 0 "BT1" H 1158 1396 50  0000 L CNN
-F 1 "Battery" H 1158 1305 50  0000 L CNN
-F 2 "Connector_Wire:SolderWirePad_1x02_P3.81mm_Drill1mm" V 1050 1410 50  0001 C CNN
-F 3 "~" V 1050 1410 50  0001 C CNN
-	1    1050 1350
+P 900 1650
+F 0 "BT1" H 1008 1696 50  0000 L CNN
+F 1 "Battery" H 1008 1605 50  0000 L CNN
+F 2 "Connector_Wire:SolderWirePad_1x02_P3.81mm_Drill1mm" V 900 1710 50  0001 C CNN
+F 3 "~" V 900 1710 50  0001 C CNN
+	1    900  1650
 	1    0    0    -1  
 $EndComp
 $Comp
 L power:VDD #PWR02
 U 1 1 5DF59C81
-P 1050 950
-F 0 "#PWR02" H 1050 800 50  0001 C CNN
-F 1 "VDD" H 1067 1123 50  0000 C CNN
-F 2 "" H 1050 950 50  0001 C CNN
-F 3 "" H 1050 950 50  0001 C CNN
-	1    1050 950 
+P 800 700
+F 0 "#PWR02" H 800 550 50  0001 C CNN
+F 1 "VDD" H 817 873 50  0000 C CNN
+F 2 "" H 800 700 50  0001 C CNN
+F 3 "" H 800 700 50  0001 C CNN
+	1    800  700 
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	1050 950  1050 1150
+	900  1250 900  1450
 $Comp
 L power:GND #PWR04
 U 1 1 5DF5AD77
-P 1050 1750
-F 0 "#PWR04" H 1050 1500 50  0001 C CNN
-F 1 "GND" H 1055 1577 50  0000 C CNN
-F 2 "" H 1050 1750 50  0001 C CNN
-F 3 "" H 1050 1750 50  0001 C CNN
-	1    1050 1750
+P 900 2050
+F 0 "#PWR04" H 900 1800 50  0001 C CNN
+F 1 "GND" H 905 1877 50  0000 C CNN
+F 2 "" H 900 2050 50  0001 C CNN
+F 3 "" H 900 2050 50  0001 C CNN
+	1    900  2050
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	1050 1550 1050 1750
-Text Notes 1150 1250 0    50   ~ 0
+	900  1850 900  2050
+Text Notes 1050 1500 0    50   ~ 0
 2 AA = 3V to 1.8V
 $Comp
 L Connector:Conn_01x04_Female J1
@ -105,8 +105,6 @@ F 3 "~" H 5150 1400 50  0001 C CNN
 	1    5150 1400
 	1    0    0    -1  
 $EndComp
-Wire Wire Line
-	4950 1400 4800 1400
 Text GLabel 4050 1700 2    50   Input ~ 0
 AUDIO
 Wire Wire Line
@ -116,74 +114,74 @@ CALIBRATE
 $Comp
 L Switch:SW_Push SW1
 U 1 1 5DF649D3
-P 6400 2250
-F 0 "SW1" V 6354 2398 50  0000 L CNN
-F 1 "SW_Push" V 6445 2398 50  0000 L CNN
-F 2 "Button_Switch_THT:SW_PUSH_6mm" H 6400 2450 50  0001 C CNN
-F 3 "~" H 6400 2450 50  0001 C CNN
-	1    6400 2250
+P 4450 6350
+F 0 "SW1" V 4404 6498 50  0000 L CNN
+F 1 "SW_Push" V 4495 6498 50  0000 L CNN
+F 2 "Button_Switch_THT:SW_PUSH_6mm" H 4450 6550 50  0001 C CNN
+F 3 "~" H 4450 6550 50  0001 C CNN
+	1    4450 6350
 	0    1    1    0   
 $EndComp
 $Comp
 L power:GND #PWR06
 U 1 1 5DF65A25
-P 6400 2600
-F 0 "#PWR06" H 6400 2350 50  0001 C CNN
-F 1 "GND" H 6405 2427 50  0000 C CNN
-F 2 "" H 6400 2600 50  0001 C CNN
-F 3 "" H 6400 2600 50  0001 C CNN
-	1    6400 2600
+P 4450 6700
+F 0 "#PWR06" H 4450 6450 50  0001 C CNN
+F 1 "GND" H 4455 6527 50  0000 C CNN
+F 2 "" H 4450 6700 50  0001 C CNN
+F 3 "" H 4450 6700 50  0001 C CNN
+	1    4450 6700
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	6400 2450 6400 2600
+	4450 6550 4450 6700
 $Comp
 L power:VDD #PWR03
 U 1 1 5DF66A21
-P 6400 950
-F 0 "#PWR03" H 6400 800 50  0001 C CNN
-F 1 "VDD" H 6417 1123 50  0000 C CNN
-F 2 "" H 6400 950 50  0001 C CNN
-F 3 "" H 6400 950 50  0001 C CNN
-	1    6400 950 
+P 4450 5050
+F 0 "#PWR03" H 4450 4900 50  0001 C CNN
+F 1 "VDD" H 4467 5223 50  0000 C CNN
+F 2 "" H 4450 5050 50  0001 C CNN
+F 3 "" H 4450 5050 50  0001 C CNN
+	1    4450 5050
 	1    0    0    -1  
 $EndComp
-Text GLabel 6250 2000 0    50   Input ~ 0
+Text GLabel 4300 6100 0    50   Input ~ 0
 CALIBRATE
 $Comp
 L Device:LED D1
 U 1 1 5DF67AA5
-P 6400 1400
-F 0 "D1" V 6439 1283 50  0000 R CNN
-F 1 "LED" V 6348 1283 50  0000 R CNN
-F 2 "LED_THT:LED_D3.0mm" H 6400 1400 50  0001 C CNN
-F 3 "~" H 6400 1400 50  0001 C CNN
-	1    6400 1400
+P 4450 5500
+F 0 "D1" V 4489 5383 50  0000 R CNN
+F 1 "LED" V 4398 5383 50  0000 R CNN
+F 2 "LED_THT:LED_D3.0mm" H 4450 5500 50  0001 C CNN
+F 3 "~" H 4450 5500 50  0001 C CNN
+	1    4450 5500
 	0    -1   -1   0   
 $EndComp
 $Comp
 L Device:R_Small R1
 U 1 1 5DF6A5BB
-P 6400 1850
-F 0 "R1" H 6459 1896 50  0000 L CNN
-F 1 "330" H 6459 1805 50  0000 L CNN
-F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" H 6400 1850 50  0001 C CNN
-F 3 "~" H 6400 1850 50  0001 C CNN
-	1    6400 1850
+P 4450 5950
+F 0 "R1" H 4509 5996 50  0000 L CNN
+F 1 "330" H 4509 5905 50  0000 L CNN
+F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" H 4450 5950 50  0001 C CNN
+F 3 "~" H 4450 5950 50  0001 C CNN
+	1    4450 5950
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	6400 950  6400 1250
+	4450 5050 4450 5350
 Wire Wire Line
-	6400 1950 6400 2000
+	4450 6050 4450 6100
 Wire Wire Line
-	6400 2000 6250 2000
+	4450 6100 4300 6100
 Wire Wire Line
-	6400 1550 6400 1750
-Connection ~ 6400 2000
+	4450 5650 4450 5850
+Connection ~ 4450 6100
 Wire Wire Line
-	6400 2000 6400 2050
-Text Notes 6750 2000 0    50   ~ 0
+	4450 6100 4450 6150
+Text Notes 4800 6100 0    50   ~ 0
 MICROCONTROLLER \nshall be able to FLASH led \nif needed
 Text Notes 5300 1400 0    50   ~ 0
 TO TOUCHSCREEN
@ -215,8 +213,6 @@ Wire Wire Line
 	1550 3000 1550 3100
 Text GLabel 950  3000 0    50   Input ~ 0
 AUDIO
-Wire Wire Line
-	950  3000 1000 3000
 $Comp
 L power:GND #PWR07
 U 1 1 5DF71C06
@ -252,90 +248,83 @@ Connection ~ 1550 3000
 $Comp
 L Device:Q_NMOS_DGS Q1
 U 1 1 5DF77FFB
-P 1550 6400
-F 0 "Q1" H 1756 6446 50  0000 L CNN
-F 1 "Q_NMOS_DGS" H 1756 6355 50  0000 L CNN
-F 2 "Package_TO_SOT_THT:TO-92" H 1750 6500 50  0001 C CNN
-F 3 "~" H 1550 6400 50  0001 C CNN
-	1    1550 6400
+P 1450 5000
+F 0 "Q1" H 1656 5046 50  0000 L CNN
+F 1 "Q_NMOS_DGS" H 1656 4955 50  0000 L CNN
+F 2 "Package_TO_SOT_THT:TO-92" H 1650 5100 50  0001 C CNN
+F 3 "~" H 1450 5000 50  0001 C CNN
+	1    1450 5000
 	1    0    0    -1  
 $EndComp
-Wire Wire Line
-	1000 3000 1000 6400
-Wire Wire Line
-	1000 6400 1350 6400
-Connection ~ 1000 3000
-Wire Wire Line
-	1000 3000 1100 3000
 $Comp
 L power:GND #PWR09
 U 1 1 5DF79997
-P 1650 6800
-F 0 "#PWR09" H 1650 6550 50  0001 C CNN
-F 1 "GND" H 1655 6627 50  0000 C CNN
-F 2 "" H 1650 6800 50  0001 C CNN
-F 3 "" H 1650 6800 50  0001 C CNN
-	1    1650 6800
+P 1550 5400
+F 0 "#PWR09" H 1550 5150 50  0001 C CNN
+F 1 "GND" H 1555 5227 50  0000 C CNN
+F 2 "" H 1550 5400 50  0001 C CNN
+F 3 "" H 1550 5400 50  0001 C CNN
+	1    1550 5400
 	1    0    0    -1  
 $EndComp
 $Comp
 L Device:Speaker LS1
 U 1 1 5DF7D3C5
-P 2600 5900
-F 0 "LS1" H 2770 5896 50  0000 L CNN
-F 1 "Speaker" H 2770 5805 50  0000 L CNN
-F 2 "Connector_Wire:SolderWirePad_1x02_P3.81mm_Drill1mm" H 2600 5700 50  0001 C CNN
-F 3 "~" H 2590 5850 50  0001 C CNN
-	1    2600 5900
+P 2500 4500
+F 0 "LS1" H 2670 4496 50  0000 L CNN
+F 1 "Speaker" H 2670 4405 50  0000 L CNN
+F 2 "Connector_Wire:SolderWirePad_1x02_P3.81mm_Drill1mm" H 2500 4300 50  0001 C CNN
+F 3 "~" H 2490 4450 50  0001 C CNN
+	1    2500 4500
 	1    0    0    -1  
 $EndComp
 $Comp
 L Device:D D2
 U 1 1 5DF7A920
-P 1650 5950
-F 0 "D2" V 1604 6029 50  0000 L CNN
-F 1 "D" V 1695 6029 50  0000 L CNN
-F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 1650 5950 50  0001 C CNN
-F 3 "~" H 1650 5950 50  0001 C CNN
-	1    1650 5950
+P 1550 4550
+F 0 "D2" V 1504 4629 50  0000 L CNN
+F 1 "D" V 1595 4629 50  0000 L CNN
+F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 1550 4550 50  0001 C CNN
+F 3 "~" H 1550 4550 50  0001 C CNN
+	1    1550 4550
 	0    1    1    0   
 $EndComp
 Wire Wire Line
-	2400 5900 2200 5900
+	2300 4500 2100 4500
 Wire Wire Line
-	1650 6150 1650 6200
+	1550 4750 1550 4800
 Wire Wire Line
-	2200 6000 2400 6000
+	2100 4600 2300 4600
 Wire Wire Line
-	2200 6150 2200 6000
+	2100 4750 2100 4600
 Wire Wire Line
-	2200 5900 2200 5750
+	2100 4500 2100 4350
 Wire Wire Line
-	1650 6150 2200 6150
+	1550 4750 2100 4750
 Wire Wire Line
-	1650 6600 1650 6800
+	1550 5200 1550 5400
 Wire Wire Line
-	1650 6100 1650 6150
-Connection ~ 1650 6150
-Text Notes 2300 5700 0    50   ~ 0
+	1550 4700 1550 4750
+Connection ~ 1550 4750
+Text Notes 2200 4300 0    50   ~ 0
 SIMPLE PULSE AMPLIFIER
 $Comp
 L Device:C_Small C2
 U 1 1 5DF8C54D
-P 1350 5950
-F 0 "C2" H 1442 5996 50  0000 L CNN
-F 1 "10u" H 1442 5905 50  0000 L CNN
-F 2 "Capacitor_THT:C_Radial_D5.0mm_H5.0mm_P2.00mm" H 1350 5950 50  0001 C CNN
-F 3 "~" H 1350 5950 50  0001 C CNN
-	1    1350 5950
+P 1250 4550
+F 0 "C2" H 1342 4596 50  0000 L CNN
+F 1 "10u" H 1342 4505 50  0000 L CNN
+F 2 "Capacitor_THT:C_Radial_D5.0mm_H5.0mm_P2.00mm" H 1250 4550 50  0001 C CNN
+F 3 "~" H 1250 4550 50  0001 C CNN
+	1    1250 4550
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	1350 5850 1350 5750
+	1250 4450 1250 4350
 Wire Wire Line
-	1350 6050 1350 6150
+	1250 4650 1250 4750
 Wire Wire Line
-	1350 6150 1650 6150
+	1250 4750 1550 4750
 $Comp
 L Mechanical:MountingHole_Pad H1
 U 1 1 5DF9AC6D
@ -412,63 +401,26 @@ Wire Wire Line
 Connection ~ 10550 6900
 Wire Wire Line
 	10550 6900 10400 6900
-Wire Wire Line
-	4950 1500 4800 1500
-Wire Wire Line
-	4800 1500 4800 1400
-$Comp
-L power:VDD #PWR011
-U 1 1 5DFA42D5
-P 4800 700
-F 0 "#PWR011" H 4800 550 50  0001 C CNN
-F 1 "VDD" H 4817 873 50  0000 C CNN
-F 2 "" H 4800 700 50  0001 C CNN
-F 3 "" H 4800 700 50  0001 C CNN
-	1    4800 700 
-	1    0    0    -1  
-$EndComp
-Wire Wire Line
-	4800 700  4800 1400
-Connection ~ 4800 1400
-Text Label 4500 1300 0    50   ~ 0
-X
-Text Label 4500 1400 0    50   ~ 0
-Y
 Wire Wire Line
 	4050 1800 3850 1800
 $Comp
 L power:VDD #PWR08
 U 1 1 5DF79F75
-P 1800 5050
-F 0 "#PWR08" H 1800 4900 50  0001 C CNN
-F 1 "VDD" H 1817 5223 50  0000 C CNN
-F 2 "" H 1800 5050 50  0001 C CNN
-F 3 "" H 1800 5050 50  0001 C CNN
-	1    1800 5050
+P 1550 4000
+F 0 "#PWR08" H 1550 3850 50  0001 C CNN
+F 1 "VDD" H 1567 4173 50  0000 C CNN
+F 2 "" H 1550 4000 50  0001 C CNN
+F 3 "" H 1550 4000 50  0001 C CNN
+	1    1550 4000
 	1    0    0    -1  
 $EndComp
-Connection ~ 1650 5750
+Connection ~ 1550 4350
 Wire Wire Line
-	1650 5750 1650 5800
+	1550 4350 1550 4400
 Wire Wire Line
-	2200 5750 1650 5750
-$Comp
-L Device:R_POT RV1
-U 1 1 5DFADF32
-P 1650 5300
-F 0 "RV1" V 1443 5300 50  0000 C CNN
-F 1 "R_POT" V 1534 5300 50  0000 C CNN
-F 2 "Potentiometer_THT:Potentiometer_Runtron_RM-065_Vertical" H 1650 5300 50  0001 C CNN
-F 3 "~" H 1650 5300 50  0001 C CNN
-	1    1650 5300
-	0    1    1    0   
-$EndComp
+	2100 4350 1550 4350
 Wire Wire Line
-	1800 5050 1800 5300
-Wire Wire Line
-	1350 5750 1650 5750
-Wire Wire Line
-	1650 5450 1650 5750
+	1250 4350 1550 4350
 $Comp
 L Device:C_Small C3
 U 1 1 5DFB1F1D
@ -518,20 +470,38 @@ F 3 "" H 2500 3450 50  0001 C CNN
 $EndComp
 Wire Wire Line
 	2500 3300 2500 3450
-Text GLabel 4900 1300 0    50   Input ~ 0
-X
 Wire Wire Line
-	4900 1300 4950 1300
-Text GLabel 4900 1600 0    50   Input ~ 0
-Y
+	3850 1300 4950 1300
 Wire Wire Line
-	4900 1600 4950 1600
-Text GLabel 3900 1300 2    50   Input ~ 0
-Y
-Text GLabel 3900 1400 2    50   Input ~ 0
-X
+	3850 1400 4950 1400
 Wire Wire Line
-	3900 1400 3850 1400
+	3850 1500 4950 1500
 Wire Wire Line
-	3850 1300 3900 1300
+	3850 1600 4950 1600
+$Comp
+L Switch:SW_DPDT_x2 SW2
+U 1 1 5DF65D1E
+P 800 1050
+F 0 "SW2" V 754 1198 50  0000 L CNN
+F 1 "SW_DPDT_x2" V 845 1198 50  0000 L CNN
+F 2 "Button_Switch_THT:SW_CuK_JS202011AQN_DPDT_Angled" H 800 1050 50  0001 C CNN
+F 3 "~" H 800 1050 50  0001 C CNN
+	1    800  1050
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	800  700  800  850 
+Text Notes 950  950  0    50   ~ 0
+ON/OFF switch
+Wire Wire Line
+	1550 4000 1550 4350
+Wire Wire Line
+	1050 3000 1100 3000
+Wire Wire Line
+	1050 3000 1050 5000
+Wire Wire Line
+	950  3000 1050 3000
+Wire Wire Line
+	1050 5000 1250 5000
+Connection ~ 1050 3000
 $EndSCHEMATC
--- a/sim/audio_amplifier.asc
+++ b/sim/audio_amplifier.asc
@ -0,0 +1,75 @@
+Version 4
+SHEET 1 2480 680
+WIRE 784 -80 80 -80
+WIRE 848 -80 784 -80
+WIRE 896 -80 848 -80
+WIRE 1008 -80 976 -80
+WIRE 784 -32 784 -80
+WIRE 848 -32 848 -80
+WIRE 1008 -32 1008 -80
+WIRE 688 96 256 96
+WIRE 784 96 784 32
+WIRE 848 96 848 32
+WIRE 848 96 784 96
+WIRE 1008 96 1008 48
+WIRE 1008 96 848 96
+WIRE 80 112 80 -80
+WIRE 256 144 256 96
+WIRE 848 176 848 96
+WIRE 688 256 688 96
+WIRE 800 256 688 256
+WIRE 80 352 80 192
+WIRE 256 352 256 224
+WIRE 256 352 80 352
+WIRE 848 352 848 272
+WIRE 848 352 256 352
+WIRE 1200 352 1200 256
+WIRE 1200 352 848 352
+WIRE 1600 352 1600 256
+WIRE 1600 352 1200 352
+WIRE 256 400 256 352
+FLAG 256 400 0
+SYMBOL voltage 80 96 R0
+WINDOW 123 0 0 Left 0
+WINDOW 39 0 0 Left 0
+SYMATTR InstName V1
+SYMATTR Value {V}
+SYMBOL diode 800 32 R180
+WINDOW 0 24 64 Left 2
+WINDOW 3 24 0 Left 2
+SYMATTR InstName D1
+SYMATTR Value 1N4148
+SYMBOL res 992 -48 R0
+SYMATTR InstName R2
+SYMATTR Value 8
+SYMBOL nmos 800 176 R0
+SYMATTR InstName M1
+SYMATTR Value AO6408
+SYMBOL ind 992 -96 R90
+WINDOW 0 5 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName L1
+SYMATTR Value 10n
+SYMBOL bv 256 128 R0
+SYMATTR InstName B1
+SYMATTR Value V=(0.5*sin(time*2*pi*(((time/1s)*5k+1k)))+0.5)*{V}
+SYMBOL bv 1200 160 R0
+SYMATTR InstName B2
+SYMATTR Value V=V(n003)/{V}*2-1
+SYMBOL bv 1600 160 R0
+SYMATTR InstName B3
+SYMATTR Value V=2*(I(R2)*(V(n001)-V(n004))/2W)-((I(R2)*(V(n001)-V(n004))/2W))
+TEXT 1176 -144 Left 2 !.tran 1 uic
+TEXT 1600 80 Left 2 !.wave "audio{V}.wav" 16  44.1k V(nc_02)
+TEXT 1176 -168 Left 2 !.param V=1.9
+TEXT 1600 104 Left 2 !.wave "ref{V}.wav" 16 44.1k V(nc_01)
+TEXT 1120 80 Left 2 ;output to wave file
+TEXT 1176 -112 Left 2 !.step param V list 1.6 3
+LINE Normal 1776 64 1104 64 2
+LINE Normal 2080 416 2080 64 2
+LINE Normal 1104 416 1792 416 2
+LINE Normal 1104 64 1104 416 2
+LINE Normal 1104 64 1104 64 2
+LINE Normal 2080 416 1792 416 2
+LINE Normal 2080 64 1776 64 2
+LINE Normal 2080 64 2080 64 2
--- a/tests/arduino_touchscreen_test/arduino_touchscreen_test.ino
+++ b/tests/arduino_touchscreen_test/arduino_touchscreen_test.ino
@ -1,38 +1,164 @@
-void setup() {
-  // put your setup code here, to run once:
-  Serial.begin(9600);
-  Serial.println("\"setup\"");
-  
+uint8_t duty = 50; // start @ 50 % duty
+float freq = 0.44; // start @ 440 hz
+
+void set_duty(uint8_t d) {
+  duty = 100- d;
+  update_freq();
 }

+void set_freq(float f) {
+  freq = f;
+  update_freq();
+}
+
+void update_freq() {
+  uint16_t top = freq/0.440*142/2;
+  
+  OCR2A = (top>0xFF)?0xFF:top;
+  OCR2B = top * duty / 100;
+}
+
+void setup_timer() {
+  // setup timer
+  update_freq();
+   
+  TCCR2A= (1<<COM2B1) | (1<<WGM20);
+  TCCR2B= (1<<WGM22) | (1<<CS02); // 64 prescaler ( 5khz == TOP of 50, 1khz = 250 )
+
+  DDRD |= (1<<PD3);
+}
+
+void setup() {
+
+  setup_timer();
+  
+  Serial.begin(9600);
+  Serial.println("setup complete");
+  interrupts();
+}
+
+#include <EEPROM.h>
+
 class Panel {
-  int A,B;
+  int maxVals[2];
+  
+  struct limits {
+    int touchThreas;
+    int minVals[2];
+    float range[2];
+    bool caldone;
+  } limits;
 public:
-  Panel(int one, int two) : A(one), B(two) {
-    pinMode(A, OUTPUT);
-    pinMode(B, OUTPUT);  
+  Panel():maxVals{1,1} {
+    // declare pins as input
+    DDRC &= ~((1<<PC0) | (1<<PC1) | (1<<PC2) | (1<<PC3));
+
+    EEPROM.get(0, limits);
  }
- 
-  int Y() {
-    digitalWrite(A, 1);
-    int result = analogRead(B);
-    digitalWrite(A, 0);
+
+  enum Axis {
+    X = 0,
+    Y
+  };
+  
+  int operator()(Axis axis) {
+    int result = -1;
+    switch(axis) {
+    case X:
+      DDRC  |= (1<<PC0)            | (1<<PC2);
+      PORTC |= (1<<PC0) | (1<<PC1)           ;
+      delay(1);
+      result = analogRead(A1);
+      break;
+    case Y:
+      DDRC  |=            (1<<PC1) | (1<<PC3);
+      PORTC |= (1<<PC0) | (1<<PC1)           ;
+      delay(1);
+      result = analogRead(A2);
+      break;
+    }
+
+    PORTC = 0;
+    DDRC  = 0;
+      
    return result;
  }
-  
-  int X() {
-    digitalWrite(B, 1);
-    int result = analogRead(A);
-    digitalWrite(B, 0);
-    return result;
+
+  float normalized(Axis axis) {
+    if (!limits.caldone)
+      return 0;
+      
+    return ((*this)(axis)- limits.minVals[axis] )/ limits.range[axis];
+  }
+
+  void calibrate() {
+    static int state = 0;
+
+    switch(state++) {
+    case 0:
+      limits.touchThreas = (*this)(X) - 10;
+      break;
+    case 1:
+      limits.minVals[X] = (*this)(X);
+      limits.minVals[Y] = (*this)(Y);
+      break;
+    case 2:
+      maxVals[X] = (*this)(X);
+      maxVals[Y] = (*this)(Y);
+    default:
+      limits.range[X] = maxVals[X] - limits.minVals[X];
+      limits.range[Y] = maxVals[Y] - limits.minVals[Y];
+      limits.caldone = 1;
+      Serial.println("calibration complete");
+      EEPROM.put(0, limits);
+      state = 0;
+    }
+  }
+
+  operator bool() {
+    return ((*this)(X) < limits.touchThreas) || ((*this)(Y) < limits.touchThreas);
  }
  
-} panel(A0,A1);
+} panel;
+
+bool newline = true;
+
+int sigmal = 0;
+int mu = 0;

 void loop() {
  // put your main code here, to run repeatedly:
-  Serial.print(panel.X());
-  Serial.print("\t");
-  Serial.println(panel.Y());
-  delay(100);
+
+  if (panel) {
+    float x = panel.normalized(Panel::X), 
+      y = panel.normalized(Panel::Y);
+      
+    int n = x*12;
+    //float freq = powf(1.0595, n - 9) * 0.440;
+    float freq = powf(1.0905, n - 6) * 0.440;
+        
+   // Serial.print(n);
+   // Serial.print("\t");
+   // Serial.println(freq);
+    
+    //analogWrite(11, 255*panel.normalized(Panel::X));
+    
+    
+    set_freq(freq);
+    set_duty(y*100);
+  } else {
+    set_duty(100);
+  }
+
+  while(Serial.available()) {
+    char c = Serial.read();
+    if (newline && c == 'c') {
+      panel.calibrate();
+      newline = false;
+    } else if (!newline && c == '\n') {
+      newline = true;
+    }
+  }
+
+  //delay(100);
 }