I'm trying to use 2 EPS8266 boards to wirelessly transmit the temperature to the AC's main PCB.
The AC is on the ceiling (high ceiling) and it's capturing the temperature from the ceiling instead of the actual room temperature below.
I'm not a big friend of wires on or in the wall and trying to solve it wirelessly.
Current wiring.
AC Motherboard <------Wired (I2C signal)------> Temperature Sensor (HSHCAL101B)
What I'm trying to accompish is this by moving the sensor to 2m level and use 2 ESP8266 to transmit I2C signals back and forth. I can send those via WI-FI or RF433 or 2.4ghz, that's the part I'm comfortable with implementing.
The problem is with I2C protocol and how to actually implement it. I'm a bit new to I2C, but not to overall coding. I just need a starting point.
I2C is a specified bus and it has no "protocol". Protocol is the concept, the way using the transmission link. Radio, Wifi, I2C..... No difference.
Why?
Can You post a logic blockdiagram telling what the poetry is trying to tell?
Doing that, tell show where/how the difficulties, what difficulties You experienced.
I'm trying to integrate the HSHCAL101B (I2C) chip with ESP8266 in order to Read (Temperature and Humidity) and Write (Reset, Detect, Self Test).
After that I want another ESP8266 to get information wirelessly from the first and act as a I2C device which I connect to existing ports on the Air Conditioning mainboard.
Help starting, okey.
Start by picking up an example code for I2C. Make the first test code exercising the I2C device.
Forum will not design the entire project and write the code. Not a free gift shop for project design nor code.
The intention of forum is to help members learn and grow and do things on their own.
Thanks for the answer, which is very logic indeed. I have the same mindset in that regard.
There seems to be a misunderstanding.
I'm not asking for anybody to design the project for me. I'm trying to learn more about it, but after hours of research I came up with almost nothing.
I tried searching some articles on how to interact with I2C, but most of the things I find are ready to use libararies. Maybe you can help me with a good article or example code, even keywords on what to search are welcome.
Probably I'm searching for the wrong things.
As I read thru the datasheet of the sensor I'm not sure where to start. Just need that little "electrical arc" that gets me started.
That chip looks like quite advanced. Likely You need to write to it, setting pointers, selecting what You will want to read from it. I doubt there's any library ready unless the manufacturer has made a library.
There's a naiv, blind, belief among members that libraries are fixing everything. That's not always the case I think. Grotto work, understanding the device looks like needed here. Using standard I2C communication and code doing the necessary calls is likely needed.
