andreyshamis / growbook

First version for used temp only

growbook

First version for used temp only

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Library used

DHT11/DHT22 https://github.com/beegee-tokyo/DHTesp

Datasheets:

• http://www.micro4you.com/files/sensor/DHT11.pdf
• http://www.adafruit.com/datasheets/DHT22.pdf
• http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Sensors/Weather/RHT03.pdf
• http://meteobox.tk/files/AM2302.pdf

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DHT11 vs DHT22

DHT11

• 3 to 5V power
• 2.5mA max current use during conversion (while requesting data)
• Good for 20-80% humidity readings with 5% accuracy
• Good for 0-50°C temperature readings ±2°C accuracy
• No more than 1 Hz sampling rate (once every second)

DHT22

• 3 to 5V power
• 2.5mA max current use during conversion (while requesting data)
• Good for 0-100% humidity readings with 2-5% accuracy
• Good for -40 to 80°C temperature readings ±0.5°C accuracy
• No more than 0.5 Hz sampling rate (once every 2 seconds)

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