thermistortable.h

// Thermistor lookup table for RepRap Temperature Sensor Boards (http://reprap.org/wiki/Temperature_Sensor_2_0)
// Made with createTemperatureLookup.py (https://github.com/traumflug/Teacup_Firmware/blob/master/createTemperatureLookup.py)
//           (patched per https://github.com/drf5n/Teacup_Firmware/blob/Gen7/createTemperatureLookup.py)
// default thermistor lookup table
// You may be able to improve the accuracy of this table in various ways.
//   1. Measure the actual resistance of the resistor. It's "nominally" 4.7K, but that's ± 5%.
//   2. Measure the actual beta of your thermistor:http://reprap.org/wiki/MeasuringThermistorBeta
//   3. Generate more table entries than you need, then trim down the ones in uninteresting ranges.
// In either case you'll have to regenerate this table, which requires python, which is difficult to install on windows.
// Since you'll have to do some testing to determine the correct temperature for your application anyway, you
// may decide that the effort isn't worth it. Who cares if it's reporting the "right" temperature as long as it's
// keeping the temperature steady enough to print, right?
// Temp*4 table from https://github.com/drf5n/Teacup_Firmware/blob/Gen7/createTemperatureLookup.py
// ./createTemperatureLookup.py --r0=10000 --t0=25 --r1=680 --r2=1600 --beta=3947 --max-adc=305 --min-adc=1 --multiplier=4 --vadc=5.0
// r0: 10000
// t0: 25
// r1: 680 (parallel with rTherm)
// r2: 1600 (series with rTherm)
// beta: 3947
// min adc: 1 at 0.0048828125 V
// max adc: 305 at 1.4892578125 V
// ADC counts from 1 to 305 by 16
#define NUMTEMPS  20 
const uint16_t temptable[NUMTEMPS][2] PROGMEM = {
// {ADC, temp*4 }, // temp         Rtherm     Vtherm      resolution   power
   {   1,   2433}, //  608.44 C,        2 Ohm, 0.005 V, 118.68 C/count, 0.02mW
   {  17,   1051}, //  262.81 C,       28 Ohm, 0.083 V, 4.70 C/count, 0.25mW
   {  33,    860}, //  215.06 C,       58 Ohm, 0.161 V, 2.09 C/count, 0.45mW
   {  49,    755}, //  189.00 C,       91 Ohm, 0.239 V, 1.33 C/count, 0.63mW
   {  65,    683}, //  170.95 C,      129 Ohm, 0.317 V, 0.98 C/count, 0.78mW
   {  81,    627}, //  156.97 C,      172 Ohm, 0.396 V, 0.79 C/count, 0.91mW
   {  97,    581}, //  145.38 C,      222 Ohm, 0.474 V, 0.67 C/count, 1.01mW
   { 113,    541}, //  135.30 C,      280 Ohm, 0.552 V, 0.60 C/count, 1.09mW
   { 129,    504}, //  126.24 C,      349 Ohm, 0.630 V, 0.54 C/count, 1.14mW
   { 145,    471}, //  117.85 C,      431 Ohm, 0.708 V, 0.51 C/count, 1.16mW
   { 161,    439}, //  109.90 C,      532 Ohm, 0.786 V, 0.49 C/count, 1.16mW
   { 177,    408}, //  102.17 C,      658 Ohm, 0.864 V, 0.48 C/count, 1.14mW
   { 193,    377}, //   94.49 C,      819 Ohm, 0.942 V, 0.48 C/count, 1.08mW
   { 209,    346}, //   86.67 C,     1034 Ohm, 1.021 V, 0.50 C/count, 1.01mW
   { 225,    313}, //   78.49 C,     1335 Ohm, 1.099 V, 0.53 C/count, 0.90mW
   { 241,    278}, //   69.62 C,     1785 Ohm, 1.177 V, 0.58 C/count, 0.78mW
   { 257,    238}, //   59.51 C,     2533 Ohm, 1.255 V, 0.68 C/count, 0.62mW
   { 273,    188}, //   47.05 C,     4019 Ohm, 1.333 V, 0.89 C/count, 0.44mW
   { 289,    115}, //   28.97 C,     8404 Ohm, 1.411 V, 1.46 C/count, 0.24mW
   { 301,      2}  //    0.56 C,    32605 Ohm, 1.470 V, 4.01 C/count, 0.07mW
};

const uint16_t THERMISTOR_EXTRUDER[NUMTEMPS][2] PROGMEM = {
// {ADC, temp*4 }, // temp         Rtherm     Vtherm      resolution   power
   {   1,   2433}, //  608.44 C,        2 Ohm, 0.005 V, 118.68 C/count, 0.02mW
   {  17,   1051}, //  262.81 C,       28 Ohm, 0.083 V, 4.70 C/count, 0.25mW
   {  33,    860}, //  215.06 C,       58 Ohm, 0.161 V, 2.09 C/count, 0.45mW
   {  49,    755}, //  189.00 C,       91 Ohm, 0.239 V, 1.33 C/count, 0.63mW
   {  65,    683}, //  170.95 C,      129 Ohm, 0.317 V, 0.98 C/count, 0.78mW
   {  81,    627}, //  156.97 C,      172 Ohm, 0.396 V, 0.79 C/count, 0.91mW
   {  97,    581}, //  145.38 C,      222 Ohm, 0.474 V, 0.67 C/count, 1.01mW
   { 113,    541}, //  135.30 C,      280 Ohm, 0.552 V, 0.60 C/count, 1.09mW
   { 129,    504}, //  126.24 C,      349 Ohm, 0.630 V, 0.54 C/count, 1.14mW
   { 145,    471}, //  117.85 C,      431 Ohm, 0.708 V, 0.51 C/count, 1.16mW
   { 161,    439}, //  109.90 C,      532 Ohm, 0.786 V, 0.49 C/count, 1.16mW
   { 177,    408}, //  102.17 C,      658 Ohm, 0.864 V, 0.48 C/count, 1.14mW
   { 193,    377}, //   94.49 C,      819 Ohm, 0.942 V, 0.48 C/count, 1.08mW
   { 209,    346}, //   86.67 C,     1034 Ohm, 1.021 V, 0.50 C/count, 1.01mW
   { 225,    313}, //   78.49 C,     1335 Ohm, 1.099 V, 0.53 C/count, 0.90mW
   { 241,    278}, //   69.62 C,     1785 Ohm, 1.177 V, 0.58 C/count, 0.78mW
   { 257,    238}, //   59.51 C,     2533 Ohm, 1.255 V, 0.68 C/count, 0.62mW
   { 273,    188}, //   47.05 C,     4019 Ohm, 1.333 V, 0.89 C/count, 0.44mW
   { 289,    115}, //   28.97 C,     8404 Ohm, 1.411 V, 1.46 C/count, 0.24mW
   { 301,      2}  //    0.56 C,    32605 Ohm, 1.470 V, 4.01 C/count, 0.07mW
};

const uint16_t THERMISTOR_BED[NUMTEMPS][2] PROGMEM = {
// {ADC, temp*4 }, // temp         Rtherm     Vtherm      resolution   power
   {   1,   2433}, //  608.44 C,        2 Ohm, 0.005 V, 118.68 C/count, 0.02mW
   {  17,   1051}, //  262.81 C,       28 Ohm, 0.083 V, 4.70 C/count, 0.25mW
   {  33,    860}, //  215.06 C,       58 Ohm, 0.161 V, 2.09 C/count, 0.45mW
   {  49,    755}, //  189.00 C,       91 Ohm, 0.239 V, 1.33 C/count, 0.63mW
   {  65,    683}, //  170.95 C,      129 Ohm, 0.317 V, 0.98 C/count, 0.78mW
   {  81,    627}, //  156.97 C,      172 Ohm, 0.396 V, 0.79 C/count, 0.91mW
   {  97,    581}, //  145.38 C,      222 Ohm, 0.474 V, 0.67 C/count, 1.01mW
   { 113,    541}, //  135.30 C,      280 Ohm, 0.552 V, 0.60 C/count, 1.09mW
   { 129,    504}, //  126.24 C,      349 Ohm, 0.630 V, 0.54 C/count, 1.14mW
   { 145,    471}, //  117.85 C,      431 Ohm, 0.708 V, 0.51 C/count, 1.16mW
   { 161,    439}, //  109.90 C,      532 Ohm, 0.786 V, 0.49 C/count, 1.16mW
   { 177,    408}, //  102.17 C,      658 Ohm, 0.864 V, 0.48 C/count, 1.14mW
   { 193,    377}, //   94.49 C,      819 Ohm, 0.942 V, 0.48 C/count, 1.08mW
   { 209,    346}, //   86.67 C,     1034 Ohm, 1.021 V, 0.50 C/count, 1.01mW
   { 225,    313}, //   78.49 C,     1335 Ohm, 1.099 V, 0.53 C/count, 0.90mW
   { 241,    278}, //   69.62 C,     1785 Ohm, 1.177 V, 0.58 C/count, 0.78mW
   { 257,    238}, //   59.51 C,     2533 Ohm, 1.255 V, 0.68 C/count, 0.62mW
   { 273,    188}, //   47.05 C,     4019 Ohm, 1.333 V, 0.89 C/count, 0.44mW
   { 289,    115}, //   28.97 C,     8404 Ohm, 1.411 V, 1.46 C/count, 0.24mW
   { 301,      2}  //    0.56 C,    32605 Ohm, 1.470 V, 4.01 C/count, 0.07mW
};