[UPDATED] ESP8266 WiFi Sensor - temperature and humidity
Then you can use authValEncoded in the http request.
client.print("Authorization: Basic ");
client.print(authValEncoded);
Of course you can encode it offline and enter the encoded string directly as it shown alternatively in line 254
client.print("Authorization: Basic bXl1c2VyOm15cGFzc3dvcmQ=\r\n");
(I am refering to the actual version of https://github.com/Okadesde/esp8266-pimatic-Arduino/blob/master/esp8266/esp8266.ino )
@Heizelmann
Thank you that is the right way. My coding is not so good.
@okadesde wrote
…(Basic AP Mode coded but currently not working because of EEPROM.h bug and wifi.mode switch error. )…
Can someone explain which bug is meant?
Hi,
i’ve just got eveything in from the china mailman and connected it as follows:
http://i.imgur.com/igeGPea.jpg
When i plug the FTDI into my mac I see it getting turned on, the led goes red, however, there is no LED burning on the ESP8266. It seems like it doesnt do anything. I’m not using an external power source yet, just using the FTDI to connect and configure the ESP8266. Is there anything I’ve done wrong in the wiring?
Extra info. I wasnt quite sure if the VCC from the FTDI was an input or output, so also tryed with no VCC cable on the FTDI but instead on 3.3V from the raspberry pi. Same effect tho, no power on ESP.
Something that might be relevant to notice. The first time I connected it, I wasnt aware of the 3/5v jumper on the FTDI, it was still on 5v, after that i shut it down and placed it on 3V. Could I have broken my ESP with this?
Edit: Today a second ESP came trough the mail, no problems with this one at all. Trew away the first :’)
Kind regards,
I’ve made some minor changes to the code to make the Base64 authentication to work, as well as made the hostname/ip adress work with WiFiClient.h (this library expects a character object, not a String).
I forked the code, pushed the changes and made a pull request to the original author. Please let me know if there are questions or if you can’t find my modifications.
@Rene-Arts Looks good for me. Thanks!
My ESPs are crashing almost approximately every 30 minutes, only occationally running longer. I added uptime as a paramter and sent it to pimatic to track it. before i wen’t on holiday to see how stable it was.
I’ve tracked it down to handle_root() function call, and the requests are made from an unknown device. Having trouble wiresharking it on the wifi.
"29.11.2015 15:17:12" send_data()
"29.11.2015 15:17:12" temp: 16.00 hum: 95.00 upt: 1769
"29.11.2015 15:17:12" send_data() -end-
"29.11.2015 15:17:42" handle_root()
"29.11.2015 15:17:42" server.args(): 0
"29.11.2015 15:17:50" ets Jan 8 2013,rst cause:4, boot mode:(3,6)
"29.11.2015 15:17:50" wdt reset
8-9 seconds after calling handle_root() the watchdog kicks in. For now I guess the easy fix is to disable the webUI, but I’m curious to find out why. At first glance i seems its not possible to get the remote ip from the server object?
Edit: IPAddress ip = server.client().remoteIP(); gets the IP of the connecting client. It was my asus rt-n16 being chatty, and it stopped crashing the esp for some reason.
In case you havent seen this version of the ESP8266 boards. Currently selling for $4 w/ free shipping if you buy 1, oddly enough you pay for shipping if buying two or more. But I placed four orderes…
anyways, it has onboard usb->serial bridge, 4M flash like nodemcu, but its smaller and leaves room for connections if you put it on a breadboard. Ships with male, female and stackable headers too.
Now I got this esp-01 v1.0 from dx: http://img.dxcdn.com/productimages/sku_403053_2.jpg
Unfortunately I can’t find diagrams for the connections. The 4 endpins are simple enough. But I read that I need to connect the 3V to 2 pins to upload the luas.
How do I connect it to load the lua’s and a ds18b20 and a FTDI232?
Is the 8 pin female connector on top of the esp-01 the same as what I see in other 8-pin esp-01’s?
sw1 is for booting into flash mode
Follow my domotica project on http://maredana.nl
the board you have a picture of seems to be nothing but a 5 to 3.3v powersupply and level converter for the esp-01 you would plug in. I’m thinking its designed for use with an Arduino and the ESP’s default AT command firmware. (And not flashing/stand alone use)
Most FTDI boards i’ve seen have 3.3v supply available, and the pins are 3.3v (but 5v tolerant). So you should be able to skip the board in its entirety, and connect the ftdi directly. Measure before you do, I read the esp is not 5v tolerant).
AFAIK there is only 1 pinout for the 8pin header on the esps. The modules with board edge connectors do vary.
My recommendation, if you have a 1M+ flash chip, connect your FTDI cable directly to the board, with the relevant pins to 3.3v and gnd to enable flashing. and flash it with a OTA compatible firmware. Then you won’t ever™ need the ftdi again. It won’t work with 512kb flash as you need room for your running sketch, and room to upload a new over wifi.
You’ll need to update the ESP8266 board definitions in the IDE, should update to 2.00. Then try this example:
I then proceeded to copy the includes, and functions from the code in this thread into the OTA example and it works fine.
Alternatively, you can use a breadboard and dupont wires to connect the adapter you have to the esp, and also wire in the sensor and needed pins for flashing. But the wifi/ota method is faster and easier once set up.
edit: found the page that covers OTA in more detail: https://github.com/esp8266/Arduino/blob/master/doc/ota_updates/ota_updates.md#application-example
@incmve Thanks for your response but this picture I have seen more on the internet. It is just that mine has 4 pins and a 8 pin female connector. Not 8 pins.
@beikeland said:
the board you have a picture of seems to be nothing but a 5 to 3.3v powersupply and level converter for the esp-01 you would plug in. I’m thinking its designed for use with an Arduino and the ESP’s default AT command firmware. (And not flashing/stand alone use)
Do you mean it is not an wifi enhanced chip but simply an intermediate board to put an esp8266 onto?
By the way you describe it, the description of the ordered article makes more sense as well: it is a “ESP8266 Serial Wi-Fi Wireless ESP-01 Adapter Module 3.3V / 5V Compatible for Arduino”.
And yes: I do have a ftdi with a dip-switch to switch from 3.3V to 5V which I wanted to use to load the luas onto the esp01.
So I ordered the wrong thing or at least I did not order enough. Another 2-4 weeks waiting then for a real one. 
The the board in the picture is the only board you have, then yes, I believe it doesn’t have any wifi on it.
The nodemcu boards are pretty good, they have onboard powersupply and reset/flash circuitry built in, just plug in a micro usb and get started.
Edit: yeah, looked it up on dx; it doesn’t have the ESP or flash chips on either side. Its just an interface/adapter.
@beikeland Thanks, although your answer doesn’t really make me happy 
@Harry-van-der-Wolf : If you are fairly new to LUA script the Arduino language might be an alternative (https://github.com/esp8266/Arduino). @okadesde did this as stated on top of this thread and I started directly with arduinio language. I feel it is very easy.
@Heizelmann Yeah. I already installed the Arduino IDE and added the esp8266 board via that github instructions. And then I got stuck.
I just ordered a real nodemcu (“NodeMCU ESP8266 ESP-12 Development Board Lua Wi-Fi Module w/ Built-in Antennas”). Now I have to wait until the chinese delivery will come in. Around christmas I’m afraid.
I now have the nodemcu esp-12 in house. When compiling the C version ino I get an error on the base64.h library as it is missing. So I googled and took the one from https://github.com/adamvr/arduino-base64. I downloaded the zip from the github and added it to the library.
Now I get an error on
/home/<username>/Arduino/libraries/arduino-base64-master/Base64.cpp:2:26: fatal error: avr/pgmspace.h: No such file or directory
#include <avr/pgmspace.h>
^
compilation terminated.
Do I have the correct base64 library?
**Edit: ** Sorry. forgot to mention.
In the Base64.cpp I changed the
#include <avr/pgmspace.h>
to
#include <pgmspace.h>
(As I googled that too )
No compilation errors anymore but can I safely do that?
@lxz
Can you share your ds18b20 code with us? I just rewrote the the standard dht one from dht to ds18b20 (as only have ds18b20 sensors as well) but I prefer to see good code right away before debugging all kind of errors in my code.
Update: Never mind. My own code works fine after I understood that pin D4 is the same as GPIO2 (and therefore not D2).
@Harry-van-der-Wolf
That should be totally fine. I guess it’s worth mentioning in the startpost, as almost everyone will be stumbling upon this bug.