ESP32 Based Chademo

[Arlin]

Hi Guys, I just used these files to place an order from JLCPCB I have most of what I need. I plan to add this to a Rav 4 EV and my next Diy build after that. Does anyone know if we can use the BMS info to work with this as well? I will have a few questions as I go though this.

-Arlin

[Bigpie]

Only BMS supported is Simon's. Code changes will be needed or is BMS can messages can be mapped

[tom91]

Luckily its all opensource so you can make all the required changes in the code.

[arber333]

Only BMS supported is Simon's. Code changes will be needed or is BMS can messages can be mapped

Hi can you tell me what kind I/Os you use?
IN1 and IN2 are pullup inputs? In DUE version i use IN1 with signal LOW (GND) and 12V pullup with NPN transistor releasing pin to pullup.
IN2 signal directly with 12V signal and then interim NPN transistor would pull the pin down.

How are the OUT1 and OUT2 used? As open collector directly or should i use additional relay?

TNX

[tom91]

Hi can you tell me what kind I/Os you use?

If only the circuits were opensourced. Oh wait they are on the first post.

https://github.com/jamiejones85/ESP32-Chademo

https://github.com/jamiejones85/ESP32-C ... hademo.pdf

[arber333]

If only the circuits were opensourced. Oh wait they are on the first post.

https://github.com/jamiejones85/ESP32-Chademo

https://github.com/jamiejones85/ESP32-C ... hademo.pdf

I am actually making this application to use MCP2517FD circuit and i need to switch some things around and use a different library here...
Did you actually answer my question in your post? Not very helpful.
Did you actually use ESP32 to build Chademo VCU circuit? If not, then question to OP still applies as i only see gerbers and cant imagine what he used after the VCU.

So do you have any schamatic of interfacing VCU? TNX

[tom91]

I am actually making this application to use MCP2517FD circuit and i need to switch some things around and use a different library here...
Did you actually answer my question in your post? Not very helpful.
Did you actually use ESP32 to build Chademo VCU circuit? If not, then question to OP still applies as i only see gerbers and cant imagine what he used after the VCU.

So do you have any schamatic of interfacing VCU? TNX

Really ? I linked the PDF schematic... You just need to click the link and look at it.

This forum is turning to shit with people needing to be spoon fed everything that is answered already in the topics.

[arber333]

Really ? I linked the PDF schematic... You just need to click the link and look at it.

This forum is turning to shit with people needing to be spoon fed everything that is answered already in the topics.

Sorry i couldnt see schematic on my github. Must be a problem with my fork version not being updated

EDIT: Yup... my version was really outdated and i seem to managed to remove that pdf... Tnx for details, ill get my act together... any day now.

[Arlin]

This forum is turning to shit with people needing to be spoon fed everything that is answered already in the topics.

Yeah in his defence I didn't see the SCH the first few times clicking the link either. But for some reason someone else linked the same link and it showed the SCH. I think I had a similar issue with GIT as well. The gerber files were not there the first few times as well but the same thing once I got a link from someone else it showed them so I could use them.

[Arlin]

Hmm So I got most of the things to work on this. But the first problem I run into is my ESP 32 is too narrow. by about 4-5mm Anyone else run into this problem?

Edit. Now that I have the boards. I was able to see the older ESP32 uses a wider footprint. But you also need to make sure the pinout matches.

[arber333]

Hmm So I got most of the things to work on this. But the first problem I run into is my ESP 32 is too narrow. by about 4-5mm Anyone else run into this problem?

Edit. Now that I have the boards. I was able to see the older ESP32 uses a wider footprint. But you also need to make sure the pinout matches.

Yes you definitely need to check if the pinout is ok.
My design uses wider footprint and when i mount newer USB C equipped boards i need to bend both female headers inwards.

[Arlin]

Hmm I am having problems compiling the code. I have solved many of the libraries I needed to add. But this one has me stumped.
Also on git hub it says AsyncElegantOTA is archived and is read only it says please consider migrating to ElegantOTA instead.

How hard is that so I just change the include file name and add the ElegantOTA file?


"In file included from C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ChademoWebServer.cpp:4:
c:\Users\garbi\Documents\Arduino\libraries\AsyncElegantOTA\src/AsyncElegantOTA.h:4:2: error: #error AsyncElegantOTA library is deprecated, Please consider migrating to newer ElegantOTA library which now comes with an async mode. Learn More: https:
4 | #error AsyncElegantOTA library is deprecated, Please consider migrating to newer ElegantOTA library which now comes with an async mode. Learn More: https://docs.elegantota.pro/async-mode/
| ^~~~~
c:\Users\garbi\Documents\Arduino\libraries\AsyncElegantOTA\src/AsyncElegantOTA.h:18:14: fatal error: esp_int_wdt.h: No such file or directory
18 | #include "esp_int_wdt.h"
| ^~~~~~~~~~~~~~~
compilation terminated.
exit status 1

Compilation error: exit status 1"

[Arlin]

Ok So I tried just changing the include file to "ElegantOTA" and got this warning.

"C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ESP32-Chademo.ino: In function 'void setup()':
C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ESP32-Chademo.ino:151:21: error: too many arguments to function 'hw_timer_t* timerBegin(uint32_t)'
151 | timer = timerBegin(0, 80, true);
| ~~~~~~~~~~^~~~~~~~~~~~~
In file included from C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.4\cores\esp32/esp32-hal.h:84,
from C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.4\cores\esp32/Arduino.h:36,
from C:\Users\garbi\AppData\Local\Temp\arduino\sketches\1F830700D6DD1A75C8B168530002D4EE\sketch\ESP32-Chademo.ino.cpp:1:
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.4\cores\esp32/esp32-hal-timer.h:35:13: note: declared here
35 | hw_timer_t *timerBegin(uint32_t frequency);
| ^~~~~~~~~~
C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ESP32-Chademo.ino:153:23: error: too many arguments to function 'void timerAttachInterrupt(hw_timer_t*, void (*)())'
153 | timerAttachInterrupt(timer, &onTimer, true);
| ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.4\cores\esp32/esp32-hal-timer.h:50:6: note: declared here
50 | void timerAttachInterrupt(hw_timer_t *timer, void (*userFunc)(void));
| ^~~~~~~~~~~~~~~~~~~~
C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ESP32-Chademo.ino:158:3: error: 'timerAlarmWrite' was not declared in this scope; did you mean 'timerWrite'?
158 | timerAlarmWrite(timer, 25000, true);
| ^~~~~~~~~~~~~~~
| timerWrite
C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ESP32-Chademo.ino:159:3: error: 'timerAlarmEnable' was not declared in this scope; did you mean 'timerAlarm'?
159 | timerAlarmEnable(timer);
| ^~~~~~~~~~~~~~~~
| timerAlarm
In file included from C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.4\libraries\WebServer\src/HTTP_Method.h:4,
from C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.4\libraries\WebServer\src/WebServer.h:30,
from c:\Users\garbi\Documents\Arduino\libraries\ElegantOTA\src/ElegantOTA.h:73,
from C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ChademoWebServer.cpp:4:
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:95:6: error: 'HTTP_DELETE' conflicts with a previous declaration
95 | XX(0, DELETE, DELETE) \
| ^
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:138:45: note: in definition of macro 'XX'
138 | #define XX(num, name, string) HTTP_##name = num,
| ^~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:139:3: note: in expansion of macro 'HTTP_METHOD_MAP'
139 | HTTP_METHOD_MAP(XX)
| ^~~~~~~~~~~~~~~
In file included from C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ChademoWebServer.h:5,
from C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ChademoWebServer.cpp:1:
c:\Users\garbi\Documents\Arduino\libraries\ESPAsyncWebServer\src/ESPAsyncWebServer.h:64:3: note: previous declaration 'WebRequestMethod HTTP_DELETE'
64 | HTTP_DELETE = 0b00000100,
| ^~~~~~~~~~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:96:6: error: 'HTTP_GET' conflicts with a previous declaration
96 | XX(1, GET, GET) \
| ^
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:138:45: note: in definition of macro 'XX'
138 | #define XX(num, name, string) HTTP_##name = num,
| ^~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:139:3: note: in expansion of macro 'HTTP_METHOD_MAP'
139 | HTTP_METHOD_MAP(XX)
| ^~~~~~~~~~~~~~~
c:\Users\garbi\Documents\Arduino\libraries\ESPAsyncWebServer\src/ESPAsyncWebServer.h:62:3: note: previous declaration 'WebRequestMethod HTTP_GET'
62 | HTTP_GET = 0b00000001,
| ^~~~~~~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:97:6: error: 'HTTP_HEAD' conflicts with a previous declaration
97 | XX(2, HEAD, HEAD) \
| ^
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:138:45: note: in definition of macro 'XX'
138 | #define XX(num, name, string) HTTP_##name = num,
| ^~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:139:3: note: in expansion of macro 'HTTP_METHOD_MAP'
139 | HTTP_METHOD_MAP(XX)
| ^~~~~~~~~~~~~~~
c:\Users\garbi\Documents\Arduino\libraries\ESPAsyncWebServer\src/ESPAsyncWebServer.h:67:3: note: previous declaration 'WebRequestMethod HTTP_HEAD'
67 | HTTP_HEAD = 0b00100000,
| ^~~~~~~~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:98:6: error: 'HTTP_POST' conflicts with a previous declaration
98 | XX(3, POST, POST) \
| ^
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:138:45: note: in definition of macro 'XX'
138 | #define XX(num, name, string) HTTP_##name = num,
| ^~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:139:3: note: in expansion of macro 'HTTP_METHOD_MAP'
139 | HTTP_METHOD_MAP(XX)
| ^~~~~~~~~~~~~~~
c:\Users\garbi\Documents\Arduino\libraries\ESPAsyncWebServer\src/ESPAsyncWebServer.h:63:3: note: previous declaration 'WebRequestMethod HTTP_POST'
63 | HTTP_POST = 0b00000010,
| ^~~~~~~~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:99:6: error: 'HTTP_PUT' conflicts with a previous declaration
99 | XX(4, PUT, PUT) \
| ^
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:138:45: note: in definition of macro 'XX'
138 | #define XX(num, name, string) HTTP_##name = num,
| ^~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:139:3: note: in expansion of macro 'HTTP_METHOD_MAP'
139 | HTTP_METHOD_MAP(XX)
| ^~~~~~~~~~~~~~~
c:\Users\garbi\Documents\Arduino\libraries\ESPAsyncWebServer\src/ESPAsyncWebServer.h:65:3: note: previous declaration 'WebRequestMethod HTTP_PUT'
65 | HTTP_PUT = 0b00001000,
| ^~~~~~~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:102:6: error: 'HTTP_OPTIONS' conflicts with a previous declaration
102 | XX(6, OPTIONS, OPTIONS) \
| ^
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:138:45: note: in definition of macro 'XX'
138 | #define XX(num, name, string) HTTP_##name = num,
| ^~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:139:3: note: in expansion of macro 'HTTP_METHOD_MAP'
139 | HTTP_METHOD_MAP(XX)
| ^~~~~~~~~~~~~~~
c:\Users\garbi\Documents\Arduino\libraries\ESPAsyncWebServer\src/ESPAsyncWebServer.h:68:3: note: previous declaration 'WebRequestMethod HTTP_OPTIONS'
68 | HTTP_OPTIONS = 0b01000000,
| ^~~~~~~~~~~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:128:6: error: 'HTTP_PATCH' conflicts with a previous declaration
128 | XX(28, PATCH, PATCH) \
| ^~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:138:45: note: in definition of macro 'XX'
138 | #define XX(num, name, string) HTTP_##name = num,
| ^~~
C:\Users\garbi\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-b6b4727c58\esp32/include/http_parser/http_parser.h:139:3: note: in expansion of macro 'HTTP_METHOD_MAP'
139 | HTTP_METHOD_MAP(XX)
| ^~~~~~~~~~~~~~~
c:\Users\garbi\Documents\Arduino\libraries\ESPAsyncWebServer\src/ESPAsyncWebServer.h:66:3: note: previous declaration 'WebRequestMethod HTTP_PATCH'
66 | HTTP_PATCH = 0b00010000,
| ^~~~~~~~~~
C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ChademoWebServer.cpp: In member function 'void ChademoWebServer::setup()':
C:\Users\garbi\Desktop\DIY Chademo\ESP32-Chademo-main (1)\ESP32-Chademo-main\ESP32-Chademo\ChademoWebServer.cpp:132:3: error: 'AsyncElegantOTA' was not declared in this scope; did you mean 'ElegantOTA'?
132 | AsyncElegantOTA.begin(&server);
| ^~~~~~~~~~~~~~~
| ElegantOTA

exit status 1

Compilation error: too many arguments to function 'hw_timer_t* timerBegin(uint32_t)'"

[Bigpie]

Using library ACAN_ESP32 at version 1.1.2
Using library ESPAsyncWebServer at version 1.2.3
Using library FS at version 2.0.0
Using library WiFi at version 2.0.0
Using library AsyncTCP at version 1.1.1
Using library ArduinoJson at version 6.20.1
Using library SPIFFS at version 2.0.0
Using library ACAN2515 at version 2.1.2
Using library SPI at version 2.0.0
Using library EEPROM at version 2.0.0
Using library AsyncElegantOTA at version 2.2.7
Using library Update at version 2.0.0

[Arlin]

Hmm Thanks for the Help Bigpie

I am still stuggling. I have a couple questions. One is the AsyncElegrantOTA is old and I keep seeing this warning.
"#warning AsyncElegantOTA.loop(); is deprecated, please remove it from loop() if defined. This function will be removed in a future release."
The next question is I actuall had to install from Zip for Both AsyncElegantOTA and for ESPAsyncWebServer at version 1.2.3
And neither of those show up in the libraries after doing so.

And with all that this is my current error. I feel close... But not there yet.

"c:/users/garbi/appdata/local/arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/esp-2021r2-patch5-8.4.0/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:\Users\garbi\AppData\Local\Temp\arduino\sketches\F73DF8BA1B81828ABFB9CED0770C9C31\sketch\ESP32-Chademo.ino.cpp.o:c:\Users\garbi\Documents\Arduino\libraries\AsyncElegantOTA\src/AsyncElegantOTA.h:169: multiple definition of `AsyncElegantOTA'; C:\Users\garbi\AppData\Local\Temp\arduino\sketches\F73DF8BA1B81828ABFB9CED0770C9C31\sketch\ChademoWebServer.cpp.o:c:\Users\garbi\Documents\Arduino\libraries\AsyncElegantOTA\src/AsyncElegantOTA.h:169: first defined here
collect2.exe: error: ld returned 1 exit status

exit status 1

Compilation error: exit status 1"

[Arlin]

OK I solved that and uploaded it to the ESP32 Board.

The last problem was I had "include <AsyncElegantOTA> in the ino file as well and had to remove it.

[Arlin]

ESP32-BMS.jpegScreenshot 2023-05-24 at 9.18.38 am.png Will this do? Wasn't charging, just sat on the drive.

Any chance we can get a read me for the gui setup?

Thanks.

-Arlin

[Arlin]

Actually all I think I need is to know how to find the web server or the IP address its not spitting it out how do I get that last step working?

[Bigpie]

If you connect to the ESP32 wifi network and the ip address will be 192.168.4.1

[Arlin]

If you connect to the ESP32 wifi network and the ip address will be 192.168.4.1

Thank you.

I tried looking though the code and I didn't see "192.168.4.1"

So I tried this and connected via wifi but it doesn't work to type 192.168.4.1
I tried this on my PC and with my phone. Neither seems to work.

Also it seems to disappear from wifi fairly quick. And I will also point out I only have the board powered via USB cable.

[uhi22]

ESP is picky regarding power supply. It usually crashes if the voltage drops due to high current consumption during WiFi transmission. Use a lab power supply or at least a shorter heavy USB cable.

[Arlin]

ESP is picky regarding power supply. It usually crashes if the voltage drops due to high current consumption during WiFi transmission. Use a lab power supply or at least a shorter heavy USB cable.

Thank you.

How is the ESP supposed to get power from the shield?
I see the pin for 5v is not connected and the 3.3 from the ESP to the 3.3v supply has 2k resistance
It powers up with a good USB cable to the ESP but even with my 100w wall plug for fast charging my phone the 5v on the ESP is only at 4.4v...

[Bigpie]

When you give the board the 12V supply the ESP32 gets 3.3v from the AMS1117

[Arlin]

When you give the board the 12V supply the ESP32 gets 3.3v from the AMS1117

Thank you. So I run a jumper from the 3.3v regulator to the 3.3v pin on the ESP and it still didn't work.

I then tested a new unused board from the GitHub files and it doesn't have continuity from the 3.3v regulator to the pin on the ESP32.

[Romale]

hello everyone! Can I also ask a stupid question?
Can this device work with a hall effect current sensor? or on a regular 75 mv shunt?
Isabella's shunt is very expensive, it seems to me, in order to be accessible to the masses.