data logger uses - no idea how to yet, thinking/hoping its not too hard

[tllim]

Hi,

I have something similar setup in my house with three temperature sensors.  In my case, I use a DHT22 sensor and a Particle Photon to gather the temperature and humidity information and then publish it to the Particle Cloud.  I then use a Raspberry Pi to display the temperatures.  I also use Ubidots to both trigger alerts and to provide trending graphs.  It works great but is a different model than what you are thinking about.

I can share more details if you are interested.

Thank you,

JL

hi, 

I want to know how to let dht22 work,
I try many times and ways , but it doesnot work  

thank you

The DHT22 is a one wire bus protocol and need exact timing sequence to read out the data, such protocol not suitable for Linux OS which runs on PINE A64 or Raspberry Pi. Please use the sensor that output UART, I2C or SPI data. If you still plan to use DHT22, please handle by microcontroller or Arduino first, then feed the data to PINE A64.

You can run barematel firmware or RTOS on PINE64 to reliable ready DHT22 data and this is another topic of discussion.