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Simple ESP8266 WiFi Temperature and Humidity sensor logger

PostPosted: Mon Mar 30, 2015 11:33 pm
by whats_up_skip
I am surprised that there are no simple temperature and humidity sensors based on the ESP8266 listed.

I have found similar designs, but they also involve an Arduino type device in the circuit.
Example: http://www.instructables.com/id/ESP8266 ... ty-logger/

I thought the ESP8266 along with only a DHT22 temperature and humidity sensor and a few passive components would have been all that is required, or am I missing something here?

Re: Simple ESP8266 WiFi Temperature and Humidity sensor logg

PostPosted: Tue Mar 31, 2015 12:21 am
by Jan Marius Evang
whats_up_skip wrote:I am surprised that there are no simple temperature and humidity sensors based on the ESP8266 listed.

I have found similar designs, but they also involve an Arduino type device in the circuit.
Example: http://www.instructables.com/id/ESP8266 ... ty-logger/

I thought the ESP8266 along with only a DHT22 temperature and humidity sensor and a few passive components would have been all that is required, or am I missing something here?


I made a temperature logger with a DHT11 + ESP8266(-01) + USB 3.3v power. Very simple with the nodemcu firmware and some pieces of code I found on the net. https://thingspeak.com/channels/29692
DHT22 is more accurate than DHT11.

Marius

Re: Simple ESP8266 WiFi Temperature and Humidity sensor logg

PostPosted: Tue Mar 31, 2015 12:24 am
by Jan Marius Evang
I should add that i first made it with only wires between the pins, but then made a pcb. You can order here: (I get 1$ credit if you do)

http://dirtypcbs.com/view.php?share=520 ... 458ea8742e

I used one of these modules
http://www.ebay.com/itm/New-DHT11-Tempe ... 4855679549

And didn't need any pull-up resistors on the pcb.

Marius

Re: Simple ESP8266 WiFi Temperature and Humidity sensor logg

PostPosted: Tue Mar 31, 2015 11:57 am
by quark-elec
Havn't see this similar product in the market.