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# triffid/FiveD_on_Arduino

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 // default thermistor lookup table // 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[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 };
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