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openenergymonitor / EmonLib

Electricity monitoring library - install in Arduino IDE's libraries folder then restart the IDE
openenergymonitor.org
GNU Affero General Public License v3.0
594 stars 422 forks source link

ESP8266 integration/compatibility #16

Open giacomoleonzi opened 9 years ago

giacomoleonzi commented 9 years ago

Hi I try to use your library on ESP8266 and I get stuck when the library try to calculate the sqrt() function. The sqrt function lead ESP to crash and reboot, because of some problem in its math library when you program via the ArduinoIDE. to overcame the issue, I implemented an approximated method to calculate the squareroot and it works fine.

Do you want that I do a pull request to integrate that part? thanks regards Giacomo

glynhudson commented 9 years ago

Hi Giacomo,

That's great, I would love to try using emonLib with the ESP8266. I have recently got hold of one. Do you think a pull request on a separate branch for ESP8266 or starting a totally seperate emonLib_ESP8266 library could be best? What do you think? I think the latter would be best. Are you using Arduino IDE to program the ESP? I would be very interested to hear more about your project. Do you have a blog? If would be great to do a guest blog on the OpenEnergyMonitior blog regarding using emonLib on ESP8266. I think many people will be interested in using this new chip

On Wednesday, 15 July 2015, giacomoleonzi notifications@github.com wrote:

Hi I try to use your library on ESP8266 and I get stuck when the library try to calculate the sqrt() function. The sqrt function lead ESP to crash and reboot, because of some problem in its math library when you program via the ArduinoIDE. to overcame the issue, I implemented an approximated method to calculate the squareroot and it works fine.

Do you want that I do a pull request to integrate that part? thanks regards Giacomo

— Reply to this email directly or view it on GitHub https://github.com/openenergymonitor/EmonLib/issues/16.

Glyn Hudson

http://megni.co.uk http://adventuresplusnorthwales.blogspot.com

giacomoleonzi commented 9 years ago

Hi Yes I had use the ArduinoIDE to program the ESP. I think that the solution of separete branch is enough, because I think that this bug will be fixed. I hope that you can hear about the project soon, but I don't have a blog right now. I'm pretty sure about the interest in this chip, so writing on the OpenEnergyMonitor's blog about that could be very intresting.

glynhudson commented 9 years ago

Great, please submit a pull request and send info about your project when you have made some progress. I would love to post a blog about the ESP82 EmonLib on our blog. I have recently got myself an ESP, I hope to get going with it soon. Let me know if you have any advice to get started. Do you recommend using Arduino IDE to program?

On Thursday, 16 July 2015, giacomoleonzi notifications@github.com wrote:

Hi Yes I had use the ArduinoIDE to program the ESP. I think that the solution of separete branch is enough, because I think that this bug will be fixed. I hope that you can hear about the project soon, but I don't have a blog right now. I'm pretty sure about the interest in this chip, so writing on the OpenEnergyMonitor's blog about that could be very intresting.

— Reply to this email directly or view it on GitHub https://github.com/openenergymonitor/EmonLib/issues/16#issuecomment-122090915 .

Glyn Hudson

http://megni.co.uk http://adventuresplusnorthwales.blogspot.com

markwalters0 commented 8 years ago

To extend on the above issue with ESP compatibility, it would be good to allow external ADC chips to be used with the library. (eg MCP3008 is a 10 bit 8 channel ADC with SPI, with an existing library MCP3008.h.) With this we could publish with MQTT straight to emoncms.

mihino commented 8 years ago

I have just prototyped Arduino Pro Mini with ESP-01. It sends data in 5s avarages via WiFi. It works stable for a week. Check it: homecircuits.eu/blog/wifi-energy-monitor/ ESP needs more power for WiFi connection, so it is not suitable for battery supply.

glynhudson commented 8 years ago

Nice! Good work. We have started work on an emonESP energy monitor also https://community.openenergymonitor.org/t/emonesp-details/372/3

On 17 May 2016 at 00:02, mihino notifications@github.com wrote:

I have just prototyped Arduino Pro Mini with ESP-01. It sends data in 5s avarages via WiFi. It works stable for a week. Check it: homecircuits.eu/blog/wifi-energy-monitor/ ESP needs more power for WiFi connection, so it is not suitable for battery supply.

— You are receiving this because you commented. Reply to this email directly or view it on GitHub https://github.com/openenergymonitor/EmonLib/issues/16#issuecomment-219574070

Glyn Hudson

http://megni.co.uk http://adventuresplusnorthwales.blogspot.com

markwalters0 commented 8 years ago

I have emonTx firmware running directly on the ESP8266 (NodeMCU ESP-12E). I used a standalone ADC chip (MCP3008, i had some lying around from a RPi build). ESP now has 8 analog inputs I found the WiFiManager library (https://github.com/tzapu/WiFiManager), which seemed to do everything I needed for the AP setup of the ESP. I did try Glyn's emonESP method first though. The ESP then sends the results via MQTT to a RPi.

This is where I am up to at the moment, I either need to work out the MQTT input into emoncms or setup mqttwarn to make a http post input. I am a complete noob on github, i made my own repo here: https://github.com/markwalters0/emonTx_ESP8266

Also, the recent versions of the arduino IDE and libm.a have fixed the sqrt problem

posicat commented 6 years ago

I read this forum a few days ago, after discovering the ESP8266 only has a single ADC port. Typically I'm not the kind to just take the easy way out, so I looked for a few ADC chips, and found the very nice ADS1115 chips which happily sit on an I2C bus and have 2/4 inputs and 16 Bit resolution. I ordered some from Adafruit to test how they work, and then wandered over to EasyEDA to design a board for an ESP-01 and 4 ADS1115 chips.

I was looking over the EmonLib code, and it looks like the analog reads are hard-coded, but it seems like those calls could be wrapped in an #ifdef CUSTOM_ADC that would call the native ADC on Arduino's unless it was set, then it would call a custom method like customADCRead, same parameters. This would let people using alternate ADC chips easily use the EmonLib code.

My project is going to have a few parts, the board is going to live in my laundry/furnace room. First version will just monitor the washer/dryer and alert me when the wash is done (it's out of the way and hard to hear) eventually I want to expand to reading the blinking LED on my power-meter to monitor whole-house power use, then on to perhaps monitoring the AC, furnace and more. It'll be a work in progress, but you see why I designed the 16-input board.

https://easyeda.com/posicat/ESP-01-Analog-I2C

vanjsy commented 6 years ago

HI, is this possible to use same script but using ESP8266? Thanks.

posicat commented 6 years ago

There will have to be at least a few code changes to support the board I built. For one, it reads the current through a separate chip. Once I have a working board at home I can see if I can make a few code modifications for this board.

markwalters0 commented 6 years ago

My version with esp12e and the mcp3008 adc chip works. Reads 8 channels and sends data by mqtt to rpi running emonhub.

I had to modify the code though and configuring the rpi was tricky (for me at least).

On 20 Mar 2018 3:39 am, "Mark" notifications@github.com wrote:

There will have to be at least a few code changes to support the board I built. For one, it reads the current through a separate chip. Once I have a working board at home I can see if I can make a few code modifications for this board.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/openenergymonitor/EmonLib/issues/16#issuecomment-374278944, or mute the thread https://github.com/notifications/unsubscribe-auth/AQA913vwUeQF7Zs05_a929t2f1GptTFmks5tf98ugaJpZM4FZJ2w .

vanjsy commented 6 years ago

Is there a way where i will use only ESP8266? Without adc? Current only. Thanks