Introduction: DHT11+ MSP430 From Scratch

MSP430 + DHT11

The DHT11 is a low-cost digital temperature and humidity sensor.

Characteristics Power supply = 3 to 5V Current Suply = 150uA(stand by), 1mA(Average), 2.5mA(measuring)

Range= 20-90%RH, and 0-50 ºC Relative Humidity Accuracy =+-5% RH Temperature Accuracy =+-2% T Resolution for RH and T = 1

Protocol = 1-Wire

DHT11 uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and it sends digital data over the data pin every time that a request is sent by the master MCU, which only can be done once every Two seconds