hdmi News - CNX Software - Embedded Systems News

October 12, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

4-inch square HDMI displays with USB touchscreen sell for $33 and up

4-inch HDMI touchscreen displays raspberry pi

We’ve already seen some small HDMI displays, mostly useful for SBCs like Raspberry Pi boards, including a 7-inch monitor with a stand, a 7-inch HDMI touchscreen display, and a 7.9-inch ultrawide HDMI display. Today, I’ve come across another form factor with two 4-inch square HDMI touchscreen displays with 720×720 resolution: the VIEWE model appears to be new and is the cheaper of the two at about $33, while the Waveshare “4inch HDMI LCD (C)” has been around for a couple of years and offers extra features such as a 3.5 mm audio jack and speakers support, and mounting for Raspberry Pi 3/4/5 single board computers with adapters. VIEWE 4-inch square HDMI touchscreen display VIEWE 4-inch HDMI display (UEDX72720040-HMD-RB-A) specifications: Display 4-inch square HDMI TFT display with 720×720 resolution ST7703 display driver Brightness – 300 cd/㎡ Active area – 71.93 x 71.93 mm Touchscreen – 5-point capacitive touch screen via USB-C […]

September 23, 2025September 25, 2025 by Debashis Das - 6 Comments

Luckfox PicoKVM – A low-cost IP-KVM with 1080p HDMI capture, Wake-on-LAN, virtual storage emulation

Luckfox PicoKVM with case and 1.54inch touch display

Luckfox PicoKVM is a compact and low-cost IP-KVM tool designed for the remote management of PCs, servers, and development boards. Like other KVM solutions, this allows users to control a computer or board remotely, even when it’s turned off or when accessing the BIOS. Built around the Rockchip RV1106 Cortex-A7 processor with 256MB DDR3 and 8GB eMMC storage, the PicoKVM supports 1080p60 video capture with H.264 encoding and 80–200 ms latency. The device integrates HDMI input, a 100 Mbps Ethernet port, and USB-C for HID and USB storage emulation, while the full version adds a 1.54-inch touchscreen display for status monitoring. Additional features include Wake-on-LAN, MicroSD card storage expansion, GPIO-based power control, web and serial terminals, and support for custom scripting. Luckfox PicoKVM specifications: SoC – Rockchip RV1106G3 CPU – Arm Cortex A7 @ 1.2GHz with an integrated RISC-V co-processor. NPU – 1 TOPS 4th-gen Rockchip NPU with hybrid quantization (int4, int8, int16) […]

September 21, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

GL.iNet Comet PoE KVM over IP solution with 32GB eMMC flash launched for $109.99

GL.iNet Comet PoE (GL-RM1PE) is a new KVM over IP solution featuring a quad-core Correx-A53 SoC, support for Power-over-Ethernet (PoE), a 32GB eMMC flash, and the usual HDMI and USB ports. It’s essentially an upgrade to the Comet PoE (GL-RM1) KVM over IP box equipped with PoE and a 32GB eMMC flash capable of handling larger ISO files. It also relies on the faster Cortex-A53 processor used in the upcoming Comet Pro, currently on Kickstarter, with WiFi 6, a 2.2-inch touchscreen display, and HDMI passthrough. GL.iNet also claims faster file transfer (35 MB/s read & 25 MB/s write speeds) of about three times faster than the original Comet. Comet PoE specifications: SoC – Unnamed quad-core Cortex-A53 CPU (Potentially Rockchip RV1126B) System Memory – 1GB DDR3L Storage – 32GB eMMC flash Video & Audio Input – HDMI port up to 2K @ 60 FPS (2160 x 1440 @ 60 FPS); H.264 […]

August 29, 2025August 29, 2025 by Debashis Das - 10 Comments

Sipeed NanoKVM Pro – A 4K IP-KVM with ATX and Desk versions, PiKVM/NanoKVM firmware support

The Sipeed NanoKVM Pro is a compact 4K IP-KVM with PiKVM/NanoKVM firmware support and is designed for BIOS-level remote management of servers and desktop PCs. It is primarily used in data centers, IT administration, and home labs for remote power cycling, system installation, and secure batch management. It comes in two variants, where the desk variant adds user-facing controls similar to the GL.iNet Comet Pro KVM over WiFi solution, and the ATX version is built for internal chassis or rack installation. Both modules come with 4K video capture with HDMI loopout, ultra-low 50–100 ms latency, USB keyboard/mouse emulation, GbE LAN, Wi-Fi 6, optional PoE, and 32GB eMMC storage with 1GB LPDDR4X RAM. Additionally, it features a customizable touchscreen, LED sync strip, multi-node batch management, and even AI-based smart assistant features. These features with NanoKVM & PiKVM support make it suitable for both simple PC use and demanding server environments. Sipeed […]

August 27, 2025August 28, 2025 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

GL.iNet Comet Pro Remote KVM over WiFi 6 solution offers 2.2-inch touchscreen display, HDMI loop support (Crowdfunding)

GL.iNet Comet Pro (GL-RM10) is a remote KVM over WiFi 6 or Ethernet with a built-in touchscreen display for easy configuration, and support for 4Kp30 with a low latency of 30-60 ms with H.264 hardware encoding. Like other KVM solutions, it allows users to control a computer or board remotely, even when it’s turned off or when accessing the BIOS. It’s built upon the Comet (GL-RM1) KVM over IP solution, adding WiFi 6, HDMI pass-through, and a touchscreen display for easy configuration. It still features a USB-C port for keyboard and mouse emulation, and a USB-A port for ATX power control or a Fingerbot device. The new model also relies on a more powerful quad-core Cortex-A53 SoC and is equipped with 32GB eMMC flash, overcoming the 8GB flash limitation of the low-cost model. Comet Pro (GL-RM10) specifications: SoC – Quad-core Cortex-A53 CPU @ 1.5 GHz; potentially a Rockchip RV1126B, since […]

August 27, 2025August 30, 2025 by Debashis Das - No Comments

Adafruit Fruit Jam – An RP2350 mini computer running classic Macintosh

The Adafruit Fruit Jam is a credit card-sized RP2350-powered mini computer that is designed to run classic Macintosh through the uMac emulator. It supports System 2.0 up to System 7.5.5, 720p video via DVI, audio, and USB keyboard and mouse. Built around the Raspberry Pi RP2350 MCU, the Fruit Jam board also features an ESP32-C6 wireless module and offers DVI output via the RP2350’s HSTX interface, USB-C for bootloading, a microSD card slot for storage, and an onboard TLV320DAC3100 I2S audio DAC for stereo headphones and a mono speaker. There’s also a 16-pin GPIO header, NeoPixels LEDs, tactile switches, and STEMMA QT and JST connectors for expansion. These features make this board suitable for retro emulation, educational projects, and lightweight standalone computing. Adafruit Fruit Jam specifications: Microcontroller – Raspberry Pi RP2350B CPU Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trustzone, Secure boot OR Dual-core RISC-V Hazard3 @ 150 MHz […]

August 20, 2025August 20, 2025 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Eazeye 2.0 24-inch Reflective LCD monitor offers an alternative to color E-ink monitors

Eazeye 2.0 is a 24-inch Reflective LCD (RLCD) monitor relying on UHR (ultra-high reflectivity) technology to make the display more readable when exposed to sunlight. It offers an alternative to pricey color E-ink monitors, while also reducing eye strain and lowering energy consumption. The Eazeye Monitor 2.0 offers a 1920×1080 resolution, 60 Hz refresh rate, and 16.7 million colors, and seems especially useful for people wanting to use it outdoors with their laptop or other host. Eazeye 2.0 monitor (EZY-MON2-001) specifications: Display 24-inch RLCD Resolution – 1920 x 1080 (16:9) Colors – 16.7 million Refresh / Response – 60 Hz / 10 ms Video Input – HDMI and USB-C port Audio – 3.5mm output jack Misc – Tilt-adjustable stand + built-in kickstand Power Supply USB-C port Consumption – ~4W on average, up to 7W Dimensions – 54.5 x 32.0 x 1.4 cm Weight – 2.2 kg The 24-inch […]

August 17, 2025August 17, 2025 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

Testing a 30-meter fiber HDMI cable

When RUIPRO asked me to review an HDMI cable, I almost immediately deleted their email. After all, who wants to review a dumb HDMI cable? But I still took a look and noticed that their cable used optical fiber, and they sold HDMI cables up to 300 meters long on Amazon. My longest HDMI cable is about 1.5 meters long, so I got intrigued and asked for a 100-foot (30-meter) fiber HDMI cable for testing. RUIPRO fiber HDMI cable unboxing When I received the parcel, I got two boxes, so I thought there might be a receiver and a transmitter. But no, they must like me and sent two “8K detachable pure fiber HDMI cables”. The cables are said to be HDMI 2.1b compliant up to 8K resolution, and with support for future 10K and 12K resolutions. Other features listed include Dynamic HDR, eARC, uncompressed 8K60 Hz and 4K120 Hz, […]