CrowPanel 1.28 — ELECROW - FORUM https://forum.elecrow.com/index.php?p=/ Thu, 30 Apr 2026 13:20:21 +0000 en CrowPanel 1.28 — ELECROW - FORUM Access gpio pins on CrowPanel 1.28inch-HMI ESP32 Rotary Display https://forum.elecrow.com/index.php?p=/discussion/28265/access-gpio-pins-on-crowpanel-1-28inch-hmi-esp32-rotary-display Fri, 20 Mar 2026 11:00:58 +0000 Elecrow HMI Display PatrickM 28265@/index.php?p=/discussions Any tips on using extra GPIO pins on this otherwise very neat device?
There's two gpio pins (IO4, IO12) available on the FPC connector, but without a suitable breakout cable i cannot use them. I've read some references about test io pads for the same pins somewhere on the pcb but i can't find any marks. Maybe soldering a wire directly to the FPC connector is the best approach? I only need one gpio pin for my project...

]]> CrowPanel 1.28" with ESP32-C3 https://forum.elecrow.com/index.php?p=/discussion/28254/crowpanel-1-28-with-esp32-c3 Mon, 16 Mar 2026 23:51:54 +0000 ESP32 & Lora bbroerman 28254@/index.php?p=/discussions I'm trying to use a QI standard wireless charging system with a CrowPanel 1.28" running an ESP32-C3. I've got a small LiPo battery connected to it. I'm planning on using this as a pocket watch (for my son), and want to be able to recharge the battery wirelessly.
I have the output of the QI receiver module (5v 0.6a output) connected to a USB-C plug connected to the USB socket of the CrowPanel board. It will run the CrowPanel very nicely without the battery connected, but once I hook up the battery it causes the transmitter (I have a generic one from Amazon) to just flash slowly.
I'm going to test it when the battery is low enough to not run the board, and see what I can do there, but I'm really hoping someone out there has a suggestion to get this working properly!

]]> DIS12824D : CrowPanel ESP32-C3 1.28 Round - Current / Power Usage https://forum.elecrow.com/index.php?p=/discussion/1074/dis12824d-crowpanel-esp32-c3-1-28-round-current-power-usage Sat, 01 Feb 2025 01:27:50 +0000 Elecrow HMI Display bbroerman 1074@/index.php?p=/discussions Hi, I'm wondering if anyone has measured the current / power usage of the CrowPanel 1.28 Round with the ESP32-C3? Both active, and when the ESP, display driver, and touch controller are all in sleep mode and the backlight is off. I have a similar panel (and have ordered this particular CrowPanel) and would like to compare... I'm looking to calculate the effective run-time for different battery sizes.

The panel I have now runs at about 64mA when active and about 4.3mA when everything is in sleep mode. Is it about the same for this panel?

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