Replies: 5 comments 38 replies
-
|
Yes, Nextion is quite outdated and their designer is from the Windows XP era :-) This device with LVGL look good 👍 With a Modbus API, the display must periodically pooling registers from the EVSE. Probably in small time interval, which can be reflected in the performance. Nextion API is designed to you subscribe to value, and EVSE send you once immediately and next time, when its changed value. I don't know if this data format would be suitable for LVGL, but it is not a problem to implement all other values like Modbus API. Also you can use Netion API thorught RS485 serial, the same also applies to Modbus API, it can also be used via UART serial. |
Beta Was this translation helpful? Give feedback.
-
|
Is it okay if I use other HMI instead of using Nextion for example CrowPanel touch screen, does the program work fine or there will be some issues |
Beta Was this translation helpful? Give feedback.
-
|
I thought of having a more precise description on the user interface for the states. What I know so far is:
Could you help me understand better the difference between B1-B2, C1-C2 and D1-D2 respectively? |
Beta Was this translation helpful? Give feedback.
-
|
Beta Was this translation helpful? Give feedback.
-
|
New version, for ESP32-EVSE v2.0 and up, based on AT commands: Config examples included for:
|
Beta Was this translation helpful? Give feedback.










Uh oh!
There was an error while loading. Please reload this page.
Uh oh!
There was an error while loading. Please reload this page.
-
TL;DR:
https://github.com/nagyrobi/esp32evse_esphome-lvgl
Here's my plan to use ESPHome + LVGL instead of Nextion display:
ESPHome is adding support for the LVGL graphics library.
Several screens are supported but for this project a WT32-SC01 Plus or Guition JC3248w535 would be most suitable because:
esp32-evseinsideRunning ESPHome on it has the following advantages:
esp32-evse, other talking to smart meter etc)With this it becomes possible not only to have a fully customizable UI, but also:
As far as I see the ModBUS feature set is wider that Nextion's so it's already possible to implement more functionality with this kind of display that with Nextion out of the box.
As soon as I get my
esp32s2-evse-d-aup and running, will start on this and publish the YAML.Beta Was this translation helpful? Give feedback.
All reactions