Arduino News - Page 2 of 140 - CNX Software

February 16, 2026February 16, 2026 by Debashis Das - 1 Comment

LR2021 LoRa Plus board combines Semtech LR2021 and Nordic nRF54L15 for high-speed FLRC and LoRa connectivity

Last year, Semtech released the LR2021 LoRa Plus transceiver chip, designed to address the low data-rate issue associated with LoRa, but surprisingly, they didn’t release a development board for the chip. Now, almost a year later, Seeed Studio and Semtech have partnered to introduce the LR2021 LoRa Plus development kit targeting long-range high-speed LoRa and FLRC applications up to 2.6 Mbps. Not only does the board support LoRa Gen 4 technology, providing Sub-GHz, 2.4 GHz ISM, and S/L-band operation, but a XIAO nRF54L15 board also adds dual-core processing (Arm Cortex-M33 + RISC-V) and supports other short-range protocols, including NFC, Bluetooth LE 6.0, Matter, Thread, and 2.4 GHz proprietary protocols. The development board also features a 0.96-inch 128×64 OLED, three Grove connectors for expansion, a USB Type-C for power, SWD debugging, and two Sub-GHz and 2.4 GHz SMA connectors. It is compatible with Arduino Uno, STM32 Nucleo, and Nordic DK boards. […]

February 9, 2026February 10, 2026 by Debashis Das - 7 Comments

Add a tiny desktop monitor to your PC with the ESP32 Desktop Monitor project

While searching AliExpress for new products, I found the TENSTAR T-Display ESP32-D0WD with a 1.14-inch IPS color IPS LCD and 16MB of QSPI flash that’s used by some as a tiny secondary mirrored monitor for their PC. The board appears to be a low-cost alternative to the original LilyGo T-Display, and also integrates a USB-to-TTL converter (CH9102F), a battery charging circuit, a toggle switch, and two user-programmable buttons, which makes it suitable for projects like the NerdMiner and small-scale dashboards for home automation. The hardware does not seem special, yet they sold over 10,000 pieces of the board. After looking into it, the ESP32 Desktop Monitor project is probably the “culprit” for the high sales number, as it transforms the board into a regular monitor, albeit with a tiny 1.14-inch LCD. More on that after the specifications. TENSTAR T-Display Specifications: SoC – Espressif Systems ESP32-D0WDQ6-V3 MCU cores – Dual-core Xtensa LX6 32-bit […]

February 5, 2026February 5, 2026 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Review of XIAO ePaper DIY Kit EE02 13.3-inch color E-Ink display with SenseCraft HMI and Arduino

Seeed Studio has sent us a sample of the XIAO ePaper DIY Kit EE02 for review. The kit is comprised of an ESP32-S3 board driving a 13.3-inch Spectra 6 color E-Ink display with 1600 x 1200 resolution. It supports Wi-Fi and Bluetooth 5.0 (LE) wireless connectivity, and features a USB Type-C port for power and programming, a battery connector with an on/off power switch, a built-in charging circuit, a Reset button, and three user buttons. In this review, we will test the XIAO ePaper DIY Kit EE02 with the SenseCraft HMI platform and the Arduino IDE. But first, let’s go through an unboxing. XIAO ePaper DIY KIT EE02 unboxing We received the XIAO ePaper DIY Kit EE02 in a cardboard box with foam to protect the display. The package includes the 13.-inch ePaper display, the XIAO ePaper Display EE02 board, an external antenna, and a set of two 60-pin adapters […]

February 2, 2026February 1, 2026 by Debashis Das - No Comments

DSTIKE AI Home Security Sidekick – ESP32-S3 hacking tool with Wi-Fi, display, camera, and voice interaction

DSTIKE AI Home Security Sidekick, nicknamed “Eve,” is an ESP32-S3-based AI-powered hacking tool with a display, camera, audio interaction, USB, and a built-in battery for portable use. The device is designed by Travis Lin, well known for his deauther watches like the Deauther Watch V4S and the Deauther Watch X, but now they have designed a Home Security Sidekick with a 2.0-inch LCD, a 2MP camera for basic computer-vision tasks, and an onboard microphone and speaker for voice interaction. It supports real-time Wi-Fi deauthentication attack detection through 802.11 management frame analysis, includes a USB Type-C port for charging and firmware flashing, and integrates a physical wake/function button, all housed in a transparent acrylic enclosure for home network monitoring, desktop diagnostics, and educational applications. DSTIKE AI Home Security Sidekick specifications Core module – Espressif Systems ESP32-S3-WROOM-1-N16R8 SoC – ESP32-S3 CPU – Dual-core LX7 processor with up to 240MHz Memory – 512KB SRAM, […]

January 27, 2026January 27, 2026 by Debashis Das - 1 Comment

Meterbit Pixlpal – An open-source ESP32-S3 smart display with 128×64 RGB LED matrix, Hi-Fi audio output (Crowdfunding)

Designed by Meterbit Cybernetics in Nigeria, the Pixlpal is an open-source, ESP32-S3-based 11.25-inch 128×64 RGB LED matrix display designed as a customizable ticker for news, crypto, and smart home notifications, while also offering Hi-Fi audio playback. The device also includes a multi-function rotary encoder for local control, a digital MEMS microphone, and a 3.5 mm headphone output driven by a TI PCM5102A DAC for Hi-Fi audio playback. Pixlpal also provides a USB Type-C OTG port for power and programming, and a USB Type-A adapter port for firmware updates and peripherals. The device targets Smart Home dashboards, desktop information displays, and educational or maker-focused IoT applications. Pixlpal specifications: Wireless Module – Espressif Systems ESP32-S3-WROOM-1 SoC – ESP32-S3 CPU – Dual-core Tensilica LX7 up to 240 MHz with vector extension for AI/ML workloads Memory – 512KB SRAM Storage – TBD Wireless – WiFi 4 802.11b/g/n and Bluetooth 5.0 LE PCB antenna Display – […]

January 27, 2026January 26, 2026 by Debashis Das - 2 Comments

Hiwonder WonderLLM – An ESP32-S3 smart chat module with 2-inch touch display, 2MP camera, and dedicated voice chip

Hiwonder has introduced the WonderLLM, an ESP32-S3-based smart chat module that combines a 2MP camera, a 2.0-inch touch display, a speaker, and a microphone array to support both offline computer vision tasks and cloud-based Large Language Models (LLMs) via the XiaoZhi AI platform. The device ships with a dedicated voice chip (CI1302) that enables always-on wake-word detection, and a 4-pin I2C interface allows it to act as a smart vision/voice sensor for external controllers like Arduino, STM32, or other ESP32 boards. Typical applications include small robots, STEM education kits, interactive assistants, and vision-enabled projects where this device handles perception and interaction, and another MCU manages motion and control logic. Hiwonder WonderLLM specifications: Wireless Module – ESP32-S3-WROOM-1 SoC – Espressif Systems ESP32-S3 CPU – Dual-core Tensilica LX7 up to 240 MHz with vector extension for AI/ML workloads RAM – 512KB SRAM Storage – TBD Wireless – WiFi 4 and Bluetooth LE 5 […]

January 26, 2026 by Debashis Das - 1 Comment

ACEBOTT QD023 ESP32-based gesture control glove tracks finger movements with potentiometers

ACEBOTT QD023 ESP32 Motion Sensing Glove

ACEBOTT QD023 is an ESP32-based wearable gesture control glove that tracks finger movements with potentiometers instead of more traditional flex sensors. The glove transmits data via Bluetooth Low Energy (BLE) to control various robotics kits, such as bipedal walkers, mecanum-wheeled cars, and robotic arms. The glove integrates five potentiometers for finger bending detection, and a 6-axis MPU6050 IMU for wrist rotation, tilt, and hand posture detection in real time. Other Hardware features include a USB Type-C port for programming and debugging, four AAA batteries for power, buttons, LEDs, and more. Tutorials and assembly guides make it suitable for K-12 education, classrooms, and hobbyist robotics projects. ACEBOTT QD023 specifications: Wireless Module – ESP32-WROOM-32D (soldered on the backside of the PCB) SoC – ESP32 dual-core wireless microcontroller CPU – Dual-core Xtensa 32-bit microprocessor @ 240MHz Memory – 520KB internal SRAM Wireless – Wi-Fi 802.11b/g/n, and Bluetooth (4.2 and BLE) PCB antenna USB – […]

January 23, 2026January 23, 2026 by Jean-Luc Aufranc (CNXSoft) - No Comments

M5Stack StickS3 ESP32-S3 Mini IoT Dev Kit features 1.14-inch color display, speaker and mic for voice interaction

M5Stack StickS3 is a miniature ESP32-S3 WiFi and BLE IoT development kit/controller powered by an Espressif Systems ESP32-S3-PICO-1-N8R8 system-in-package with 8MB flash and 8MB PSRAM, and equipped with a 1.14-inch display, built-in microphone and speaker, as well as an integrated IR receiver and transmitter. It’s an update to the ESP32-PICO-V3 based StickC-Plus2 with a more powerful ESP32-S3 module, a USB Type-C OTG port, improved audio integrating an ES8311 mono audio codec, a slightly larger 250 mAh battery, as well as a 4-pin Grove connector and a 16-pin female GPIO header for expansion. M5Stack StickS3 specifications: SiP – Espressif ESP32-S3-PICO-1-N8R8 as found on the M5Stack ATOMS3R and ATOMS3R Cam IoT controllers SoC – ESP32-S3 CPU – Dual-core Tensilica LX7 up to 240 MHz Memory – 512KB SRAM, 16 KB RTC SRAM Wireless – 2.4 GHz WiFi 4 and Bluetooth 5 LE + Mesh Memory – 8MB QSPI PSRAM Storage – 8MB QSPI […]