/challenges-projects/design-challenges/energy-harvesting/b/blog/posts/measuring-egg-temperature-programmingCalibration - resistance270 Ohm - 253 = -6%1k2 Ohm - 1188 = -1%15kOhm - 15000 = 0%120kOhm - 114503 = -5% With 5% resistors, I think this is pretty good; probably the error is distributed between my measurement and the resistor ...en-USTelligent Community 12