crowpanel — ELECROW - FORUM

crow panel advance 4.3 version 1.2 vs version 1

rachel_operator — Tue, 27 Jan 2026 20:47:33 +0000

When ordering this screen, how can I be sure I'm getting the 1.2? we can't use the v1 for our purposes, but it's the perfect size for our project.

CrowPanel 2.1" round with rotary encoder Example sketch too large (189% of available space)

bbroerman — Mon, 01 Dec 2025 23:21:17 +0000

Hi,
I am trying to complile and run the included example (RotaryScreen_2_1) for the CrowPanel 2.1inch-HMI ESP32 Rotary Display 480*480 IPS Round Touch Knob Screen in Arduino IDE 1.8.19, using the included libraries, and included SquareLine UI files. I've used similar screens before, and created my own SquareLine UIs in the past. This one, however, will not compile. When I try to verify the project, it says that the sketch is too large (Sketch uses 5951649 bytes (189%) of program storage space. Maximum is 3145728 bytes)
I even tried removing unneeded code (LED bar and all wifi code) and removed some of the un-used images). No clue how to get this to compile and run... How did Elecrow get their example built??

I set up the board (under the tools menu) exactly as described in the instructions in the GitHub repo.

✅Great opportunity to win $2,400 prize pool!

Doreen1020 — Mon, 08 Dec 2025 04:10:35 +0000

💖Hi Everyone,
Elecrow and SquareLine are thrilled to announce the Elecrow HMI × SquareLine UI Contest—a six-week creative challenge!

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✅Your Challenge
Design stunning UI for Elecrow ‘CrowPanel ESP32 HMI Displays’ using 'SquareLine Vision/Studio'

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✅Timeline
Project Submission: December 5, 2025 - March 6, 2026

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✅Grand Prizes Await
①Ranking Award: Elecrow Cash prizes and SquareLine software license
②Participation Award: 300 coins and have your UI showcased globally, becoming a classic case study and gaining recognition!
③Social Media Activity Award: Elecrow [(Basic + Advanced + P4) HMI Display Package] and SquareLine software license

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✅For more details, visit the official contest page:
https://www.elecrow.com/crowpanel-squareline-contest.html

📢 CrowPanel ESP32 E-paper Display Giveaway

Tammy_Elecrow — Thu, 05 Dec 2024 03:39:24 +0000

📢 Meet the latest addition to Elecrow's CrowPanel family: the #CrowPanel ESP32 E-paper Display series! Perfect for shelf labels, price tags, badges, smart labels, and smart home applications. 😊

As a token of our appreciation for your love and support, we're giving away 50 sets of these innovative screens to our community. Claim yours by filling out our survey! 🚀

📌Apply here Now

DIS08792E : CrowPanel ESP32 5.79” E-paper HMI Display - Powering with an External Battery

lokee — Fri, 24 Jan 2025 03:35:12 +0000

I have recently purchased a 5.79in e-paper screen kit following this link: https://www.elecrow.com/crowpanel-esp32-5-79-e-paper-hmi-display-with-272-792-resolution-black-white-color-driven-by-spi-interface.html

Can I use any 3.7 Li-ion battery with 2pin connector with this display? For example, will this 3000mah battery from amazon work without any additional resistor or components? https://www.amazon.com/dp/B0D3LP6F8G?th=1

Another question is how to get the battery level from code? Is there any example?

Thanks!

Need a Basic Working Example for Elecrow CrowPanel Pico 2.8" (ST7789)

Soundmit — Thu, 07 Aug 2025 22:36:20 +0000

I’ve tried every possible way to get the Elecrow CrowPanel Pico 2.8" display working, but I haven’t succeeded. I followed the tutorial, installed the libraries provided in the guide, but nothing works.

I managed to write something to the display, but only by using an ILI9341 driver instead of the ST7789 it’s supposed to have — however, the text appeared mirrored. Anyway, I deleted everything, started from scratch, and now I no longer have the “semi-working” code.
If I load the UF2 demo firmware, it works fine, but I can’t compile the demo myself.
Could someone please share a very basic, working example?
Eventually, I plan to try using it with LVGL.

Esphome in CrowPanel -ESP32 Display-1.28

MiguelAngelLV — Wed, 15 Jan 2025 11:40:03 +0000

Good morning, I am trying to install ESPHome on a CrowPanel Round 1.28", but I can't get the screen to turn on.

Looking at the Arduino code examples, it seems that some GPIOs of the IO expander need to be activated, but this model of expander is not officially supported in ESPHome, at least as of now.

Is there any external component or snippet to use the expander?

Connecting Analog Sensors to CrowPanel 7.0 – Need Guidance

Rayant — Wed, 26 Feb 2025 06:23:45 +0000

Hi everyone,
I recently purchased the CrowPanel 7.0 for a project where I need to read data from analog sensors (such as fuel and water level gauges) and display the values on the touchscreen.
Before proceeding, I have a few questions:
Does the CrowPanel 7.0 support direct analog sensor inputs?
If so, how should the wiring be done to connect sensors properly?
If direct analog input is not supported, what additional modules (such as an ADC) would be required?
Any recommendations on compatible ADC modules that work well with the CrowPanel 7.0?
How would these modules be interfaced with the panel?
I appreciate any guidance, wiring examples, or module suggestions that could help me move forward with this setup.
Thank you in advance!

Battery with crowpanel 7inch

tinusium — Fri, 17 Jan 2025 07:02:59 +0000

Hello, I have a crowpanel 7 inch display. And there is a Battery plug on the back. I want to add a Battery to the board but is it possible to charge the Battery with the usb - c port that is already on the board(uart)?

Sending info from Arduino Due to Elecrow ESP32 display

rvm47 — Tue, 03 Dec 2024 10:26:00 +0000

Hi there!
This seems like a very simple task to me but I can seem to get it right. So if anyone could help me out I'd really appreciate it.
I got this project where I want to display one of the 5 pictures stored in the SD card root of my Elecrow display depending on the keyword recieved on the serial channel. For that, I have an Arduino Due board whit the job of sending just one of the keywords at a time through Serial. The ESP32 in the Elecrow display's job is to just read whichever word has been sent last throgh Serial, compare this word to the five keyword it has stored and, if it matches with one of them, it will send a call to a function that displays the picture that corresponds to that word. Simple as that.
I'm a novice at programming this way, so I'm not seeing why I can't get the esp32 to read and compare the words in Serial as I want.
I will provide the code for the esp32 as well as a test code for the Arduino Due that just sends one of the keywords through serial after a set amount of seconds. So if anyone knows what I'm missing please let me know.
If you need more info please ask through a reply on this post and I will gladly answer the best I can.
Thank you in advance.
https://drive.google.com/drive/folders/1PejmQ7iH-jdN0bWx-j52AlENlIpiPas-?usp=sharing