touchscreen News - CNX Software - Embedded Systems News

March 13, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

Variscite VAR-SOM-AM62P SoM features Texas Instruments Sitara AM62P5 SoC for cost-effective multimedia applications

Variscite VAR-SOM-AM62P is a system-on-module powered by Texas Instruments Sitara AM62P5 quad-core Cortex-A53 + Cortex-R5F SoC coupled with up to 8GB LPDDR4 RAM and 128GB eMMC flash, and designed for cost-effective multimedia applications. The SO-DIMM module offers high speed interfaces such as gigabit Ethernet and USB 2.0, a certified WiFi 6 and Bluetooth 5.4 module, and operating in the -40 to 85°C industrial range. As a VAR-SOM module, it’s pin-to-pin compatible with other modules from the family such as the VAR-SOM-6UL or VAR-SOM-IMX93. Variscite VAR-SOM-AM62P specifications: SoC – Texas Instruments Sitara AM62P5 CPU 4x Arm Cortex-A53 @ 1.4 GHz up to 12,880 DMIPS Arm Cortex-R5F real-time core up to @ 800 MHz GPU – 3D GPU with OpenGL ES 3.2 & Vulkan1.2 VPU – H.264/H.265 Video Encoder/Decoder No PRU System Memory – 1GB to 8GB LPDDR4 Storage – 8GB to 128GB eMMC flash Networking Gigabit Ethernet PHY (Analog Devices ADIN1300) […]

March 12, 2025March 11, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

Tips to use a touchscreen display with Raspberry Pi OS in 2025

I’ve just reviewed the SunFounder 10.1-inch touchscreen display with Raspberry Pi 5 running Raspberry Pi OS, and the experience was not quite as smooth as I had expected, so I’ll report some tips to save people time. The first is the software keyboard. Matchbox keyboard used to be the go-to solution, but two years ago, my preferred keyboard became the Onboard keyboard. Sadly, it’s not working so well with the latest Raspberry Pi OS using labwc Wayland window-stacking compositor, so now Raspberry Pi recommends squeekboard. It was not installed by default, but installation is fairly easy:

sudo apt install squeekboard

1	sudo apt install squeekboard

It did not show up automatically when trying to type in a text field, maybe because I’m using a third-party touchscreen keyboard, but going to Raspberry Pi Configuration and setting On-screen Keyboard to Enabled always in the Display tab fixed that. I was able to type a URL/web search terms in the URL […]

March 11, 2025March 12, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

Review of SunFounder 10.1-inch touchscreen display for SBCs using Raspberry Pi 5 and Radxa ROCK 5B

SunFounder 10.1-inch RPI Touchscreen Display Review

SunFounder has just sent us one of their 10.1-inch touchscreen display designed for single board computers (SBCs) for review. It supports the Raspberry Pi family, but not only, thanks to a flexible design that allows mounting all sorts of boards with mounting holes that fit within an 85x70mm area. All you need is a board with HDMI output, a spare USB port for the touchscreen, and 5V USB-C input (up to 5A). So I’ll first test the SunFounder 10.1-inch touchscreen display with a Raspberry Pi 5 (85x56mm), then a larger Radxa ROCK 5 Model B Pico-ITX SBC (100 x 72mm). Since the display can also be used as an external touchscreen monitor, I’ll also try it with my laptop in Ubuntu 24.04 and Windows 11. SunFounder 10.1-inch touchscreen display specifications Key features and specifications: Display Type – IPS LCD Resolution – 1280×800 (16:10 aspect ratio) Touchscreen – 10-point capacitive Viewing […]

March 10, 2025March 10, 2025 by Debashis Das - 3 Comments

ESP32-S3 based AC voltage controller/dimmer features a knob with integrated display

Makerfabs has recently introduced Matouch 1.28-inch ToolSet_AC Dimmer an open-source ESP32-based AC voltage controller for dimming lights or adjusting motor speeds using phase-cut dimming. Built around an ESP32-S3 wireless MCU, it features a 1.28” capacitive touch display (240×240), and a UI designed with LVGL/Squareline and the Arduino V2.3.4 IDE. The device relies on a BT139 Triac and a zero-cross detection circuit for precise AC voltage control, along with an onboard relay to enable a full AC on/off switch. With an integrated AC-DC module providing 5V @ 0.6A, it can operate within an input range of AC 100-240V, 50Hz-60Hz, with a maximum load of 10A at 240VAC. Designed for home and industrial applications, it can control lighting environments and electrical appliances while being open-source for customization and integration into various automation projects. Matouch 1.28-inch ToolSet_AC Dimmer specifications: SoC – Espressif Systems ESP32-S3 CPU – Xtensa® Dual-core 32-bit LX7 Microprocessor with up to 240MHz […]

February 26, 2025February 26, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

TouchEye dual round touch display module features Raspberry Pi RP2040 or ESP32-S3 MCU (Crowdfunding)

TouchEye ESP32-S3 or RP2040 dual touch display board

Last December, Debashis wrote about the Waveshare Double Eye LCD module comprised of two round displays that can be useful for robotics or art projects since they can be made to look like googly eyes. The module is designed to be connected to a host MCU via an SPI interface. The TouchEye looks similar but offers larger 1.28-inch round displays (instead of 0.71-inch), and also adds a touch function. Instead of being connected to a host MCU via SPI like the Waveshare model, the TouchEye dual touch display module is a complete board with an onboard MCU that can be either a Raspberry Pi RP2040 or an Espressif ESP32-S3 that also offers WiFi and Bluetooth connectivity. Both boards also feature a USB-C port for power and programming, a microSD card slot, a GPIO breakout connector, and programmable buttons. TouchEye module specifications: MCU (one or the other) Raspberry Pi RP2040 dual-core […]

February 23, 2025 by Debashis Das - 2 Comments

New Microchip maXTouch M1 automotive touchscreen controllers support curved displays, physical Knob-on-Display technology

Microchip maXTouch M1 Curved Automotive Displays Knob on Display Technology

Microchip Technology’s ATMXT3072M1 and ATMXT2496M1 add to the existing maXTouch M1 automotive touchscreen controllers and are designed for large, curved, free-form displays, including ones using OLED and microLED technologies. These controllers support up to 112 reconfigurable touch channels (or 162 in ultra-wide mode), enabling touch functionality for displays up to 20-inch (16:9 format) or 34-inch (7:1 format) in size. Additionally, they use smart mutual touch acquisition to enhance signal-to-noise ratio (SNR) by +15 dB, ensuring reliable touch detection in high-capacitive environments. The controllers also feature integrated Knob-on-Display (KoD) technology for physical control knobs on touchscreens and low-latency haptic feedback for enhanced user interaction. The controls meet ASIL-A and B safety standards and support OTA firmware updates with SHA-512 authentication for cybersecurity compliance (ISO 21434:2021). All these features make these MCUs suitable for user-friendly infotainment and dashboard systems. Microchip ATMXT3072M1 and ATMXT2496M1 specifications Touchscreen channels ATMXT3072M1 – 112 fully configurable sensor […]

February 21, 2025February 21, 2025 by Debashis Das - No Comments

Renesas RA4L1 ultra-low-power MCU family offers 168 µA/MHz operation, dual-bank flash, capacitive touch

Renesas has recently introduced the RA4L1 ultra-low-power Arm Cortex-M33 MCU family along with two evaluation/development boards. This new lineup consists of 14 ultra-low-power devices based on an 80 MHz Arm Cortex-M33 processor with TrustZone support and designed for metering, IoT sensing, smart locks, digital cameras, and human-machine interface (HMI) applications. The RA4L1 MCU family offers high power efficiency at 168 µA/MHz while active and a standby current of 1.70 µA while retaining SRAM. Additionally, they support segment LCD, capacitive touch, USB-FS, CAN FD, low-power UART, multiple serial interfaces (SPI, QSPI, I2C, I3C, SSI), ADC, DAC, real-time clock, and security features like the RSIP security engine with TRNG, AES, ECC, and Hash. Renesas RA4L1 microcontroller Renesas RA4L1 specifications MCU core Arm Cortex-M33 core (Armv8-M) Up to 80 MHz operating frequency Arm Memory Protection Unit (MPU) 8 secure regions (MPU_S) 8 non-secure regions (MPU_NS) CoreSight ETM-M33 Dual SysTick timers (secure & non-secure) […]

February 19, 2025February 19, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Bapaco is a mechanical keyboard PC with an ultra-wide 12.3-inch touchscreen display (Crowdfunding)

Bapaco mechanical keyboard PC with integrated touchscreen display

Made by Shenzhen SIDIQIAO Technology, the Bapaco is a mechanical keyboard PC powered by an Intel Core i5-1235U 10-core Alder Lake SoC and equipped with a 12.3-inch ultra-wide touchscreen display with 1920×720 resolution. The keyboard PC is offered as a barebone model without memory or storage but supports up to 32GB RAM, an M.2 2280 NVMe SSD, and/or an M.2 2242 SATA 3.0 SSD. It also features an HDMI output to connect an extra display, WiFi 6 connectivity, a few USB ports, and a 3.5mm audio jack and stereo speakers. Bapaco specifications: SoC – Intel Core i5-1235U CPU – 10-core/12-thread hybrid Alder Lake U-Series processor with 2x Performance cores @ 1.3/4.4GHz, 8x Efficient cores @ 0.9/3.3GHz Cache – 12 MB Intel Smart Cache GPU – 80EU Iris Xe Graphics @ 1.2 GHz BPB: 15W System Memory – Up to 32GB DDR4 3200MT/s SO-DIMM single-channel memory Storage M.2 2280 NVMe PCIe […]