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Dennis Gunia
2022-07-18 23:25:35 +02:00
parent dd9d2857c9
commit f6e0d0456c
12 changed files with 7600 additions and 7403 deletions
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Firmware/TREM_test/TREM_test.ino Normal file
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/*
* Tap Tremelo Pedal Firmware
* V1 by Dennis Gunia
*
* 2022/07
*
*/
#define lmicros() ((long)micros())
//Lookup Tables
static const uint8_t sineLUT[256] PROGMEM = {
0x80, 0x83, 0x86, 0x89, 0x8c, 0x8f, 0x92, 0x95, 0x98, 0x9b, 0x9e, 0xa2, 0xa5, 0xa7, 0xaa, 0xad,
0xb0, 0xb3, 0xb6, 0xb9, 0xbc, 0xbe, 0xc1, 0xc4, 0xc6, 0xc9, 0xcb, 0xce, 0xd0, 0xd3, 0xd5, 0xd7,
0xda, 0xdc, 0xde, 0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xeb, 0xed, 0xee, 0xf0, 0xf1, 0xf3, 0xf4,
0xf5, 0xf6, 0xf8, 0xf9, 0xfa, 0xfa, 0xfb, 0xfc, 0xfd, 0xfd, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xfd, 0xfd, 0xfc, 0xfb, 0xfa, 0xfa, 0xf9, 0xf8, 0xf6,
0xf5, 0xf4, 0xf3, 0xf1, 0xf0, 0xee, 0xed, 0xeb, 0xea, 0xe8, 0xe6, 0xe4, 0xe2, 0xe0, 0xde, 0xdc,
0xda, 0xd7, 0xd5, 0xd3, 0xd0, 0xce, 0xcb, 0xc9, 0xc6, 0xc4, 0xc1, 0xbe, 0xbc, 0xb9, 0xb6, 0xb3,
0xb0, 0xad, 0xaa, 0xa7, 0xa5, 0xa2, 0x9e, 0x9b, 0x98, 0x95, 0x92, 0x8f, 0x8c, 0x89, 0x86, 0x83,
0x80, 0x7c, 0x79, 0x76, 0x73, 0x70, 0x6d, 0x6a, 0x67, 0x64, 0x61, 0x5d, 0x5a, 0x58, 0x55, 0x52,
0x4f, 0x4c, 0x49, 0x46, 0x43, 0x41, 0x3e, 0x3b, 0x39, 0x36, 0x34, 0x31, 0x2f, 0x2c, 0x2a, 0x28,
0x25, 0x23, 0x21, 0x1f, 0x1d, 0x1b, 0x19, 0x17, 0x15, 0x14, 0x12, 0x11, 0xf, 0xe, 0xc, 0xb,
0xa, 0x9, 0x7, 0x6, 0x5, 0x5, 0x4, 0x3, 0x2, 0x2, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x2, 0x2, 0x3, 0x4, 0x5, 0x5, 0x6, 0x7, 0x9,
0xa, 0xb, 0xc, 0xe, 0xf, 0x11, 0x12, 0x14, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f, 0x21, 0x23,
0x25, 0x28, 0x2a, 0x2c, 0x2f, 0x31, 0x34, 0x36, 0x39, 0x3b, 0x3e, 0x41, 0x43, 0x46, 0x49, 0x4c,
0x4f, 0x52, 0x55, 0x58, 0x5a, 0x5d, 0x61, 0x64, 0x67, 0x6a, 0x6d, 0x70, 0x73, 0x76, 0x79, 0x7c
};
static const uint8_t bumpLUT[256] PROGMEM = {
0, 4, 7, 10, 13, 16, 19, 22, 25, 29, 32, 35, 38, 41, 44, 47,
50, 53, 56, 59, 62, 65, 69, 72, 75, 78, 80, 83, 86, 89, 92, 95,
98, 101, 104, 107, 110, 112, 115, 118, 121, 123, 126, 129, 132, 134, 137, 140,
142, 145, 147, 150, 152, 155, 157, 160, 162, 165, 167, 169, 172, 174, 176, 179,
181, 183, 185, 187, 189, 192, 194, 196, 198, 200, 202, 203, 205, 207, 209, 211,
213, 214, 216, 218, 219, 221, 222, 224, 225, 227, 228, 230, 231, 232, 234, 235,
236, 237, 238, 240, 241, 242, 243, 244, 245, 245, 246, 247, 248, 249, 249, 250,
251, 251, 252, 252, 253, 253, 254, 254, 254, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255, 254, 254, 254, 253, 253, 252, 252, 251,
251, 250, 249, 249, 248, 247, 246, 245, 245, 244, 243, 242, 241, 240, 238, 237,
236, 235, 234, 232, 231, 230, 228, 227, 225, 224, 222, 221, 219, 218, 216, 214,
213, 211, 209, 207, 205, 203, 202, 200, 198, 196, 194, 192, 189, 187, 185, 183,
181, 179, 176, 174, 172, 169, 167, 165, 162, 160, 157, 155, 152, 150, 147, 145,
142, 140, 137, 134, 132, 129, 126, 123, 121, 118, 115, 112, 110, 107, 104, 101,
98, 95, 92, 89, 86, 83, 80, 78, 75, 72, 69, 65, 62, 59, 56, 53,
50, 47, 44, 41, 38, 35, 32, 29, 25, 22, 19, 16, 13, 10, 7, 4
};
//Waveform Constants
#define WF_SAW 1
#define WF_SINE 2
#define WF_SQUARE 4
int depth = 0;
unsigned long delayTime = 1;
uint8_t waveform = WF_SINE;
uint8_t symetry = 127;
uint16_t wfStep = 0;
unsigned long lastStep = millis();
unsigned long lastTest = millis();
//IO Pin Definition
#define PIN_A_RATE A1 //Pot Rate
#define PIN_A_DEPTH A2 //Pot Depth
#define PIN_A_SHAPE A0 //Pot Shape
#define PIN_A_MUL A3 //Pot Clock-Modifier
#define PIN_D_WF1 7 //Waveform Switch Pole 1
#define PIN_D_WF2 10 //Waveform Switch Pole 2
#define PIN_D_TAP 9 //Tap Tempo Push button
#define PIN_D_MOD 8 //Tempo Modulation Switch
#define PIN_PWM A5
void setup() {
// setup Timer 1 to 31.2kHz @ 8 Bit
TCCR1B &= 0b11100000;
TCCR1B |= 0b00001001;
TCCR1A &= 0b11111100;
TCCR1A |= 0b00000001;
//Set input pins to pullup
pinMode(PIN_D_WF1, INPUT_PULLUP);
pinMode(PIN_D_WF2, INPUT_PULLUP);
pinMode(PIN_D_TAP, INPUT_PULLUP);
pinMode(PIN_D_MOD, INPUT_PULLUP);
}
//Read pots and switch state
void getInput() {
depth = analogRead(PIN_A_DEPTH) / 4;
//delayTime = map(analogRead(A1),0,1023,5000,20000);
delayTime = map(analogRead(PIN_A_RATE), 0, 1023, 0, 40000); ;
symetry = map(analogRead(PIN_A_SHAPE), 0, 1023, 4, 251); ;
waveform = WF_SINE;
if (digitalRead(PIN_D_WF1) == LOW) {
waveform = WF_SQUARE;
}
if (digitalRead(PIN_D_WF2) == LOW) {
waveform = WF_SAW;
}
}
void loop() {
unsigned long millisNow = lmicros() / 8; //Timestamp NOW
if (lastTest + 100 < millisNow) { //Get panel state every 100ms
lastTest = millisNow;
getInput();
}
if (lastStep < millisNow - delayTime) { //do waveform stuff
wfStep ++;
if (wfStep > 255) wfStep = 0;
lastStep = millisNow;
if ( waveform == WF_SAW ) {
// SAW/TRI
if (wfStep < symetry) {
analogWrite(PIN_PWM, map(wfStep, 0, symetry, depth, 255));
} else {
analogWrite(PIN_PWM, map(wfStep, 255, symetry, depth, 255));
}
} else if ( waveform == WF_SINE ) {
// SINE/BUMP
if ( symetry >= 63 && symetry <= 191){
uint8_t val = pgm_read_word_near(sineLUT + (wfStep));
analogWrite(PIN_PWM, map(val, 0, 255, depth, 255));
}else{
uint8_t val = pgm_read_word_near(bumpLUT + (wfStep));
if (symetry > 127){val = 255-val;}
analogWrite(PIN_PWM, map(val, 0, 255, depth, 255));
}
} else {
// SQUARE/PWM
if (wfStep < symetry) {
analogWrite(PIN_PWM, depth);
} else {
analogWrite(PIN_PWM, 255);
}
}
}
}

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Front-Panel/rescources/Outrun future Bold Italic.otf Normal file
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18
Utils/tableGenerator.py Normal file
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@@ -0,0 +1,18 @@
import math
num_points = 256
max_val = 255
line_length = 16
points_bump = []
for ix in range(0,num_points):
val = math.ceil(math.sin(math.pi * (ix/num_points)) * max_val)
points_bump.append(val)
c = 0
for val in points_bump:
print (val, end=', ')
c += 1
if c > line_length -1:
print('')
c = 0

9
partlist.md
View File

@@ -6,8 +6,9 @@
* 3x LED-Bezel 5mm chrome (https://www.musikding.de/LED-Fassung-5mm-Chrom-Innenreflektor)
* 3x 5mm LED
* 1x Alpha Potentiometer 16mm 50k log (https://www.musikding.de/Alpha-Potentiometer-16mm-50k-log)
* 4x Alpha Potentiometer 16mm 10k lin (https://www.musikding.de/Alpha-Potentiometer-16mm-10k-lin)
* 4x Alpha Potentiometer 16mm 10k lin (https://www.musikding.de/Alpha-Potentiometer-16mm-10k-lin) 25k and 50k is also okay!
* 1x Toggleswitch 1 pole ON-OFF-ON (https://www.musikding.de/Kippschalter-1polig-ON-OFF-ON)
* 2x 6,3mm Mono jack (https://www.musikding.de/63mm-Klinkenbuchse-offen-Mono)
## Circuit
### ICs
@@ -22,10 +23,14 @@
* 5x 1uF (https://www.reichelt.de/elko-radial-1-0-f-250-v-rm-2-5-85-c-2000h-20--m-a-1-0u-250-p199804.html?&trstct=pol_3&nbc=1)
* 1x 47uF 16V (https://www.reichelt.de/elko-radial-47-f-16-v-rm-2-0-85-c-2000h-20--rad-47-16-p15142.html?&trstct=pol_0&nbc=1)
'Capacitors can be replaced by other capacitors with the same capacitance and a minimum voltage rating of 9V. C1,C7,C12 and C14 are part of the signal chain and should be of adequate quality.
### Film Capacitors
* 3x 100nF (https://www.reichelt.de/mks2-pet-kondensator-100-nf-10-63-vdc-rm-5-mks2-63-100n-p12349.html?&trstct=pos_1&nbc=1)
* 1x 330nF (https://www.reichelt.de/mks2-pet-kondensator-330-nf-5-63-vdc-rm-5-mks2-63-330n-p12355.html?&trstct=pol_0&nbc=1)
'Capacitors can be replaced by other capacitors with the same capacitance and a minimum voltage rating of 9V
### Resistors
* 1x 220R 5%
* 2x 1k 1%
@@ -43,6 +48,6 @@
### Diode
* 1x 1N5817 (Can be jumpered if required)
## Programming
* 1x ISP Programmer for AVR (https://www.fischl.de/usbasp/)