Huidu HD-40M 1GB + 8GB Android LCD Signage Motherboard
$ 32.00
Huidu HD-40M Android LCD motherboard with A40i processor, 1 GB RAM, 8 GB storage, LVDS, Wi-Fi and Ethernet. Supports USB touch integration. Check panel voltage, interface availability and the V2.1 specification before installation.
10000 in stock
Huidu HD-40M Android LCD signage motherboard
The HD-40M (1 GB + 8 GB) is an integrated Android motherboard for LCD signage and interactive displays. It combines an A40i processor with LVDS panel control, Ethernet, Wi-Fi, USB, audio and serial interfaces for installation inside a display enclosure.
HD-40M specifications
Reference: manufacturer specification V2.1, October 13, 2023. Check the exact panel and board revision; interface details are more specific than the broad feature descriptions.
| CPU / GPU | Allwinner A40i quad-core, up to 1.2 GHz; Mali400 MP2 |
|---|---|
| System / memory | Android 7.1.1; standard 1 GB RAM + 8 GB storage |
| LVDS output | 1 single/dual-channel LVDS interface; selectable 3.3 V / 5 V / 12 V panel supply; 12 V backlight supply |
| LVDS bit depth — source difference | Hardware table lists 6/8-bit; interface section adds 10-bit and describes 1080P LVDS. Confirm the panel and board configuration. |
| HDMI — verify hardware | Feature text mentions HDMI, but the interface table details LVDS. HDMI availability is not confirmed for the supplied board. |
| Network | 100 Mbps RJ45; Wi-Fi 802.11b/g/n |
| USB / serial | USB 2.0 HOST, USB 2.0 OTG and one expansion USB; one UART and one DEBUG interface |
| Touch input | USB multi-touch support; confirm touchscreen controller and driver compatibility |
| Audio | 3.5 mm stereo/line output; two 5 W amplifier outputs at 8 Ω |
| Rotation / clock | Manual 0°/90°/180°/270° rotation; RTC |
| Power adapter | AC 100–240 V, 50–60 Hz input; DC 12 V, 1.5 A output |
| Environment | Working −20°C to +70°C; storage −40°C to +70°C; storage humidity 10–90% RH |
Panel integration and content updates
Verify the LCD datasheet, LVDS pin mapping, selected panel voltage and backlight requirements before wiring. The board supports image rotation for portrait or landscape layouts. The specification describes Wi-Fi, USB, network and Internet program updates; confirm any TF-card hardware on the supplied revision.
Use the documented USB and serial connections for compatible peripherals. Back up working screen settings before changing firmware or programs. Disconnect power before changing panel cables or jumpers, as instructed in the manual.
Product images
Frequently asked questions
Which processor and memory does the HD-40M use?
The V2.1 specification lists an Allwinner A40i quad-core processor up to 1.2 GHz, 1 GB RAM and 8 GB storage, with Android 7.1.1.
Can the board connect directly to an LVDS panel?
Yes, provided the panel timing, LVDS mapping, bit depth, supply voltage and current requirements match. The manual requires checking the selected voltage and pin-one cable alignment before connection.
Does every HD-40M include HDMI?
Do not assume it. The specification’s feature prose mentions HDMI, while its display-interface table and detailed wiring focus on LVDS. Confirm the connector on the supplied board before choosing an HDMI display.
Can it support a touch display?
The specification supports USB multi-touch interfaces, including infrared and capacitive types. Confirm the exact touch controller, driver and Android compatibility rather than assuming all touch panels work.
Can I connect RS-232 or RS-485 equipment directly to UART?
The manual describes a TTL UART and explicitly says not to connect MAX232/485 devices directly. Confirm signal levels and the required interface conversion for the connected equipment.
Specification download
HUIDU HD-40M(1+8) LCD Digital Signage Motherboard Specification
| Weight | 0.3 kg |
|---|
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