Archive for 2nd January 2013

Reading SHT21 Using TI MSP430 LaunchPad

SHT21 is a neat little temperature and humidity sensor from Sensirion and I have used it in a couple of my Arduino projects before. Given that the Vcc is 3 V for these sensors, interfacing with a 5V ATMega chip would require an I2C level translator (or alternatively, you could run the MCU at a lower clock frequency and use the lower Vcc). Since TI’s MSP430G2 series MCU runs at lower voltages natively, it is actually a lot cleaner to interface these 3V powered I2C devices. Continue reading ‘Reading SHT21 Using TI MSP430 LaunchPad’ »