Today GY-21 got in, and made an I2C scan. then a test program of Adafruit rotated. everything works WELL

Today GY-21 got in, and made an I2C scan. then a test program of Adafruit rotated. everything works WELL

Today GY-21 got in, and made an I2C scan. then a test program of Adafruit rotated. everything works WELL

Product really simple to implement Very fast delivery (7 days for France) What happiness for DIY Thank you to BG Team Plumeau

Product really simple to implement Very fast delivery (7 days for France) What happiness for DIY Thank you to BG Team Plumeau

Product really simple to implement Very fast delivery (7 days for France) What happiness for DIY Thank you to BG Team Plumeau

From experience I know that humidity is hard to measure. I ordered one of these GY-21 to try. With the library at https://learn.sparkfun.com/tutorials/htu21d-humidity-sensor-hookup-guide/htu21d-library-and-functions it worked straight away and it worked well! Quick response and accurate. I am very pleased and will order more.

From experience I know that humidity is hard to measure. I ordered one of these GY-21 to try. With the library at https://learn.sparkfun.com/tutorials/htu21d-humidity-sensor-hookup-guide/htu21d-library-and-functions it worked straight away and it worked well! Quick response and accurate. I am very pleased and will order more.

From experience I know that humidity is hard to measure. I ordered one of these GY-21 to try. With the library at https://learn.sparkfun.com/tutorials/htu21d-humidity-sensor-hookup-guide/htu21d-library-and-functions it worked straight away and it worked well! Quick response and accurate. I am very pleased and will order more.

I ordered one just to try because humidity is hard to measure. Hooked it up to my Arduino ONE using the library on https://learn.sparkfun.com/tutorials/htu21d-humidity-sensor-hookup-guide/htu21d-library-and-functions . It worked immediately like a charm. Very stable, quick response. Temperature is accurate within 0.2 deg.C off an adjacent BMP180 (temp and pressure) sensor. Have ordered more already.

I ordered one just to try because humidity is hard to measure. Hooked it up to my Arduino ONE using the library on https://learn.sparkfun.com/tutorials/htu21d-humidity-sensor-hookup-guide/htu21d-library-and-functions . It worked immediately like a charm. Very stable, quick response. Temperature is accurate within 0.2 deg.C off an adjacent BMP180 (temp and pressure) sensor. Have ordered more already.

I ordered one just to try because humidity is hard to measure. Hooked it up to my Arduino ONE using the library on https://learn.sparkfun.com/tutorials/htu21d-humidity-sensor-hookup-guide/htu21d-library-and-functions . It worked immediately like a charm. Very stable, quick response. Temperature is accurate within 0.2 deg.C off an adjacent BMP180 (temp and pressure) sensor. Have ordered more already.