TFT-LCD & Touch Screen — ELECROW - FORUM

Buy@>> https://www.facebook.com/Neo.Force.Netherlands.Official/

Taylormarthas — Thu, 04 Jun 2026 07:08:46 +0000

jhg

DLH04828B. Is it possible to control brightness via Raspberry Pi ?

Jully — Thu, 21 May 2026 01:45:15 +0000

No, it is not .

what the power draw on the screen RC050S was?

Jully — Thu, 21 May 2026 01:40:24 +0000

Product:RC050S HD 5inch 800x480 Capacitive Touch Monitor Built-in Speaker with Backlight Control
Answer:
The power consumption is as follows; please see below:

100% Brightness, 100% Volume: 4.96V × 0.39A = 1.9344 W; 100% Brightness, 0% Volume: 4.99V × 0.33A = 1.6467 W

ESP32-S3 display reboots into old firmware after successful flash

Tomas — Sat, 09 May 2026 08:00:12 +0000

I can flash firmware over serial (COM3) and the panel goes black during flashing, so the write process seems to start correctly.
However, after reboot, the display comes back with the previous/old UI instead of the new minimal test UI.

What I have already tested:

Only one* display is connected (COM3).
Serial flashing completes without obvious cable disconnect issues.
I tested a very small minimal firmware/config to rule out application complexity.
The issue is still that after restart, old behavior/layout appears.
Could you please advise:

Is there any known boot fallback/rollback behavior on this display + ESP32-S3 combination?
1. Are there required power/reset/boot pin sequences after flashing?
2. Are there known constraints for RGB timing/pins that could cause app boot failure and fallback?
3. Is there a recommended “factory clean flash” procedure for this board?
4. Should I use any specific partition table or flash settings for stable boot with this panel?
5. If useful, I can share full logs and my exact ESPHome display pin mapping.

Thanks in advance.

CRV12615Y001: How do I display three different screens (plus my computer screen)?

Jully — Wed, 06 May 2026 10:22:02 +0000

Usually, There are only 1 way to make the CrowView Yoga and your laptop screen display three different screens totally.

⸻

If your laptop has an HDMI port and a Type-C port with DP (DisplayPort) or Thunderbolt function, you can use the following method:
• a. Connect one end of an HDMI cable to your laptop’s HDMI port, and the other end to Yoga’s HD1 port (must be HD1 only).
• b. Use a full-function Type-C cable to connect your laptop’s Type-C port to either of the Yoga’s Type-C1 or Type-C2 ports (both are fine).
• c. Set the Yoga to “Alone” mode.

(If the power supply to the Yoga is unstable, please use a power adapter to provide power. Connect a cable from the adapter to the other Type-C port on the Yoga.)

⸻

Wide Temperature LCD for Outdoor Use (-30°C to +85°C) – Real Challenges?

aptus — Wed, 08 Apr 2026 02:26:28 +0000

In a recent outdoor project, I ran into an issue that I think many people underestimate — LCD displays simply don’t behave well outside normal temperature ranges.

Most standard panels are fine in lab conditions, but once you drop below 0°C or go above 60°C, problems start showing up pretty quickly. Slow response, ghosting, brightness drop, even startup failure in cold environments.

For applications like outdoor terminals, EV chargers, or industrial controllers, this becomes a real bottleneck. The display often ends up being the weakest part of the system.

I’ve been looking into wide temperature LCD modules designed for -30°C to +85°C, and they seem to address a few key things: more stable liquid crystal materials, better backlight consistency, and generally more reliable signal transmission (especially with LVDS).

Came across a module with pretty typical specs for this category:
800×480 resolution, around 500 nits brightness, LVDS interface, and full wide temperature support.

If anyone’s curious, here’s the reference I was looking at:
7 Inch 800x480 LVDS -30°C to +85°C LCD Module

I’m more interested in real-world feedback though — especially long-term use in cold environments (below -20°C).

Do these wide temp panels actually hold up over time, or do they still degrade faster than expected?

How to replace/disable Elecrow splash screen on CrowPanel CM4?

jcz0824 — Fri, 20 Mar 2026 22:24:08 +0000

How do you disable/replace the elecrow logo splash screen on the CrowPanel CM4 ? I would like to replace this image with a custom graphic. Thank you

How do I disable "Elecrow" splash on startup

Bee — Wed, 28 Sep 2022 21:53:24 +0000

This is regarding the 7" display for Raspberry Pi. Kinda not really cool that you get to brand everything I make using your component.

RC070 7" LCD Display stopped working - SPI Flash

asdf_man — Sun, 22 Feb 2026 08:34:45 +0000

(Double post in the correct section as I cannot move the actual post - sorry for that)
Hi guys,
i have a problem with my 7" LCD Display ( 1024X600 Touch RC070 ). I used to use this screen with a tiny PC running ubuntu and it worked fine until it suddenly stopped working.
The touchscreen still works fine, but the panel stays dark (no picture or backlight at all). I measured all power rails and it seems there is voltage on all rails.
Then i measured the data transfer on the small SPI Flash and it seems that this flash does not respond, so I desoldered it and checked it with an spi flash reader. Unfortunately it could only some parts or sometimes nothing. So I assume that this flash is broken.

If I replace that chip I would need the firmware/hex file on that chip. Is the firmware running on this chip somehow available so I can repair my display?

Please see the picture attached.

Thanks for any help!

Is there an Arduino graphics primitive library with functionality mirroring the AdafruitGFX library

KG4RUL — Sat, 14 Mar 2026 15:34:23 +0000

Is there an Arduino graphics primitive library with the functionality mirroring the AdafruitGFX library? I like the all-in-one format of the ELECROW ESP32 Display 800×480, 7 Inch HMI Basic ESP32 RGB TFT LCD Touch Screen with Acrylic Case, 32-Bit LX6 Dual-Core Processor. However my project does not need anything more than simple primitives like: Line, Circle, Square, Text and no touch screen features.