openinverter forum

dima

Ah I think I understand, there is a "middle" device, maybe Arduino CAN ...Damien likes to use Arduino :) that translates CAN to UART and then ESP8266 takes comma separated (self developed/propriety) format and makes a web interface out of it. A more universal solution would be to interface...

dima

I still don't understand, what is this whole "universal" interface for? some kind of BMS? whats pushing all the UART messages (doesn't seem like Johannes inverter)

dima

Bigpie wrote: ↑Tue Feb 25, 2020 8:54 pm Does the update server allow code update and spiffs?

Yes .bin files. Use esp8266 library v2.6.3 (previous versions had issues)

dima

I recommend adding these 3 lines of code for future "easy web updates" there will be a new page /update

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#include <ESP8266HTTPUpdateServer.h>
ESP8266HTTPUpdateServer updater;

void setup()
{
	//.....
	updater.setup(&server);
}

dima

Since you have your custom board, maybe you have something similar to Damien's issue with Tesla board.

dima

Did you make change in the code? Seriously 802.11b will go through anything, lead, metal, your skull

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WiFi.setPhyMode(WIFI_PHY_MODE_11B);

dima

This has been repeated but for Olimex did you solder GPIO0 to 0 (zero) Not just left it open but actually made a solder bridge to 0? Always select highest SPIFFS (1MB) and you can leave Erase Flash: Only Sketch esp8266_olimex_spiffs.png EDIT: Also I recommend updating "esp8266" boards libr...

dima

Arduino "Debug" serial interferes with the real serial ....therefore you cannot use serial to debug. Make a dynamic web page instead.

dima

Tip:

GZIP all your files.

Include a compression header in Arduino web-server

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server.sendHeader("Content-Encoding", "gzip");

Make the compressed spiffs

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mkspiffs -c ./data/ -b 8192 -p 256 -s 500000 flash-spiffs.bin

dima

A request from Arber came in to write a "true" universal web interface (originally for Labowski inverter).

Web based TTL over ESP8266. Works nicely with Johannes inverter. https://github.com/dimecho/ESP8266-XTerm

dima

I think it is cool idea! Use 802.11B - it will reach further, and probably doesn't care much about antenna accuracy

Both power (20.5dbm max) and standard can be set in Arduino code:

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WiFi.setPhyMode(WIFI_PHY_MODE_11B);
WiFi.setOutputPower(20.5);

dima

It is a permission issue, try with sudo or this command before you run

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sudo stty -F /dev/ttyUSB0 115200 -parenb cs8 cstopb

No time to work on Linux, tested with Windows and Mac. Feel free to fix it.

EDIT: Linux Fixed

dima

Do not run minicom and web interface at the same time.

dima

Cannot just run it from a web server, you need to run "preparation script" -> "Huebner Inverter.sh" it will place proper ttyUSB into /Web/js/serial.json. It uses "php -S" command as a webserver on port 8080. The web interface will be http://127.0.0.1:8080

dima

I find that on (eBay) Chinese suppliers it is a lot easier to find Triple 3-Input NAND gate (SOIC-14) than Single 3-Input ( SOT-23-6)

Maybe consider this component -> SN74HC10D

dima

A tour of their factory. The reason I switched to JLCPCB as well for my projects

dima

Attempted to build (under Windows) Can't seem to find timer_get_ic_value from inc_encoder.cpp (searched all files)

Used your copy of custom libopencm3 and libopeninv

EDIT: Changed line 587 ...compiled OK.

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 int measTm = timer_get_counter(REV_CNT_TIMER);

dima

Blue-pill has x3 different TTL UART pins... I believe you need USART#3

USART3 TX PB10
USART3 RX PB11
USART2 TX PA2
USART2 RX PA3
USART1 TX PA9
USART1 RX PA10

dima

In my opinion "Blue-Pill" is a bad idea. It was great to see developers explore different options, but when Johannes discovered "cross-talk" ....do you really want to put safety and reliability into this "cheap" component? I recommend start with V2.1 learn how-to bootlo...

dima

Don't forget about Web flash (.bin files) -> http://inverter/update or http://192.168.4.1/update

dima

A more official link if here https://github.com/jsphuebner/inverter- ... rdv1.1.pdf

If you need 17.6kHz PWM then R40-R43 follow the drawing

dima

dima

Just came across this picture from Mustang Mach-E. That door push button looks like a nice idea.

dima

Did you solder GPIO0 back to 1? Remember to "solder bridge 1 or 0" not just leave open (made that mistake before)

Also Olimex ESP is not the only choice. WeMOS D1 work just as well and they don't need any soldering. They have mini-USB works out-of-box with Arduino studio.

dima

EDIT: Yes i get "FileNotFound". So i have to upload again? This applies to "other web interface" https://github.com/dimecho/Huebner-Inverter/releases/download/1.0/Huebner.Inverter.ESP8266.zip Sounds like you uploaded the firmware but forgot the "SPIFFS" (file-system) T...

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