Ispindel Polynomial, Meant as an educational project for KWBG. We created footprint for the The circuit of iSpindel is simple and the same as I have thought: MPU6050, DS18B20 and the circuit for Deep Sleep of ESP8266. What I didn't Should the 'Measured SG' value be the reading from my glass hydrometer or the values from the iSpindel (as they are the values I put in) Update: Just put the values from the glass This video shows how to calibrate the iSpindel to create a polynomial formula that will ensure super accurate gravity readings in your . Furthermore it is wise to change settings of the iSpindel so it This video shows how to calibrate the iSpindel to create a polynomial formula that will ensure super accurate gravity readings in your home brew fermenter. I'm having issues with my Ispindel incorrectley registering gravity. Your gravity should be being read by a hydrometer or other know The simplest way to calibrate a iSpindel is using the *readings* of a specific hydrometer without temperature correction in the same wort. I think it's likely to do with the polynomial formula buit I'm not sure. I went through the whole calibration process (twice) but I'm thinking the way I've entered the fomula into the Ispindel may be incorrect, I've entered it I went through the whole calibration process (twice) but I'm thinking the way I've entered the fomula into the Ispindel may be incorrect, I've entered it with and without spaces but it doesn't It’s recommended you connect the iSpindel with Ubidots for easy reading of the measured tilts. Afterward, the result of iSpindel should be corrected to the iSpindel DIY continuous hydrometer, for measuring the realitive gravity / density of wort. Fill in the values in the calibration spreadsheet for the iSpindel project and it will calculate the formula based on your unit.