ThermistorTable.h

// default thermistor lookup table

// How many thermistor tables we have
#define NUMTABLES 1

#define THERMISTOR_EXTRUDER	0
// #define THERMISTOR_BED		1

// Thermistor lookup table, generated with --num-temps=50 and trimmed in lower temperature ranges.
// 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. (done)
// 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?
// ./createTemperatureLookup.py --r0=100000 --t0=25 --r1=0 --r2=4700 --beta=4066 --max-adc=1023
// r0: 100000
// t0: 25
// r1: 0
// r2: 4700
// beta: 4066
// max adc: 1023
#define NUMTEMPS 20
// {ADC, temp*4 }, // temp
uint16_t temptable[NUMTABLES][NUMTEMPS][2] PROGMEM = {
{
   {1, 3364}, // 841.027617469 C
   {21, 1329}, // 332.486789769 C
   {41, 1104}, // 276.102666373 C
   {61, 987}, // 246.756060004 C
   {81, 909}, // 227.268080588 C
   {101, 851}, // 212.78847342 C
   {121, 805}, // 201.30176775 C
   {141, 767}, // 191.787692666 C
   {161, 734}, // 183.662212795 C
   {181, 706}, // 176.561442671 C
   {201, 680}, // 170.244089549 C
   {221, 658}, // 164.542298163 C
   {241, 637}, // 159.33475843 C
   {321, 567}, // 141.921298995 C
   {381, 524}, // 131.166509425 C
   {581, 406}, // 101.561865389 C
   {781, 291}, // 72.9710018071 C
   {881, 219}, // 54.8051659223 C
   {981, 93}, // 23.4825243529 C
   {1010, 1} // 0.498606463441 C
}
};