esp32 News - Page 2 of 123 - CNX Software

July 30, 2026July 30, 2026 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

ESP-KVM – An open-source IP KVM solution based on ESP32-P4 RISC-V MCU

Earlier this month, the P4 KVM project was brought to my attention. It provides IP KVM functionality to a Waveshare ESP32-P4-WIFI6-POE-ETH board when paired with a Toshiba TC358743 HDMI-to-CSI adapter. However, it doesn’t work with the new ESP32-P4 V3.x variants featuring a proper H.264 video encoding implementation, and the developer (Jonathan Rowny) says it’s just a proof-of-concept with many bugs and no security, so I decided to skip it. The good news is that he also encouraged others to fork the project, and Evgenij Spitsyn did just that with the release of the ESP-KVM project, which supports both MJPEG and H.264 encoding and a range of other features. ESP-KVM highlights: Video capture, resolution changes, and MJPEG or H.264 encoding Keyboard, absolute and relative pointer, media keys, copy/paste Touch mode for phones and tablets (trackpad, on-screen keyboard) Multiple viewers, one in control at a time with takeover HTTPS, login, physical password […]

July 28, 2026July 28, 2026 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

LILYGO T-Display C5 board features 1.9-inch IPS color LCD, battery support, Qwiic expansion connectors

LILYGO T-Display C5 is an ESP32-C5 board with a 1.9-inch IPS color LCD, a USB-C port for power and programming, Lithium battery support, and GPIO expansion via headers and two Qwiic expansion connectors. The main benefit of using an ESP32-C5 chip is support for dual-band WiFi 6 connectivity (2.4/5.0 GHz), and it also keeps Bluetooth LE 5.x and the 802.15.4 radio for Zigbee/Thread/Matter found in the ESP32-C6. LILYGO T-Display C5 specifications: Wireless module – Espressif Systems ESP32-WROOM-C5-1U-N16R8 SoC – ESP32-C5HR8 CPU Single-core 32-bit RISC-V processor @ up to 240 MHz Low-power RISC-V core @ 40 MHz acting as the main processor for power-sensitive applications Memory – 384 KB SRAM on-chip, 8MB PSRAM Storage – 320 KB ROM Wireless Connectivity Dual-band (2.4GHz/5 GHz) 802.11ax WiFi 6, with 802.11b/g/n WiFi 4 standard fallback Bluetooth 5.0 Low Energy (LE) 802.15.4 radio for Zigbee 3.0 and Thread 1.3 Storage – 16MB flash Antenna – […]

July 27, 2026 by Debashis Das - 3 Comments

Open RC Spotter is an open-source ESP32 telemetry and data logger for RC cars and toys

Jake Wachlin (Energy Labs) has designed the Open RC Spotter, an open-source ESP32-based telemetry and data logger for RC cars, trucks, and other RC toys. The platform logs synchronized GPS position, acceleration, gyroscope, steering, throttle, battery voltage, temperature, and lap timing data to a microSD card, while also supporting live telemetry over Wi-Fi and ESP-NOW. We have previously written about telemetry and data-logging hardware designed for full-sized vehicles, such as the Macchina A0 ESP32 CAN board, which supports OBD-II diagnostics and RaceChrono integration. Compared to that, this ESP32-based logger is designed for RC cars and trucks, combining GPS, IMU, PWM monitoring, and onboard data logging in a compact ESP32-based platform. Open RC Spotter specifications: Wireless module – ESP32-WROOM-32E-N4 SoC – ESP32 dual-core Tensilica LX6 microcontroller @ up to 240 MHz with 520KB SRAM Storage – 4MB flash Wireless – 2.4 GHz WiFi 4 and Bluetooth 4.2 BR/LE connectivity, built-in PCB antenna […]

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

$99 Xteink X4 Pro 4.3-inch touchscreen eReader to support CrossPoint Reader open-source firmware

Xteink X4 Pro is a pocket-sized eReader with a 4.3-inch touchscreen E Ink display, a 16GB microSD card, 2.4 GHz WiFi and Bluetooth wireless connectivity, and a 1100 mAh battery. Previous models like the X3 and X4 e-readers were based on the ESP32-C3 RISC-V microcontroller, but the company has not disclosed which MCU was used in the new X4 Pro model. However, a recent comment on GitHub points to the X4 Pro featuring a more powerful ESP32-S3 microcontroller. Xteink X4 Pro specifications: SoC – ESP32-S3 microcontroller (TBC) with 2.4 GHz WiFi 4 and Bluetooth wireless connectivity Storage – 16 GB microSD card; expandable up to 256 GB Display 4.3-inch touchscreen E Ink display; 219 PPI Dual-tone front light Supported Formats (with default firmware) Document: EPUB, TXT Image: JPG, BMP Fonts: BIN, XTF Misc Home touch button Power, Reset, Previous, and Next buttons Built-in magnets for connection to the back of […]

July 20, 2026 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

IoTextra modular automation boards with 4 inputs, 4 outputs work with Raspberry Pi and ESP32 MCU boards

IoTsmart IoTextra modular automation boards

Last week, we wrote about the Olimex PICO-EVB automation board equipped with four relays and four isolated inputs and designed for Raspberry Pi Pico-compatible boards. Make Things Happy does something similar, but in a modular way, with the IoTextra family of carrier boards with four inputs and four outputs for automation, and supporting a range of IoTsmart MCU boards based on Raspberry Pi RP2350, ESP32-S3, etc… There are currently six IoTextra boards shipping or in development, all measuring 56×47 mm and featuring 3750 Vrms galvanic isolation per channel. All IoTextra modules support different MCU platforms via horizontally or vertically mounted IoTsmart SoM carriers based on Waveshare RP2350 and ESP32-S3 modules, Seeed Studio XIAO boards, and others, all connected via the HOST connector. All IoTextra 8-channel modules support several software ecosystems out of the box: IoTflow framework for no-code programming of distributed MCU nodes over MQTT and Node-RED; used to build custom […]

July 18, 2026July 18, 2026 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

M5Stack Core2 gets open-source firmware to reproduce OpenAI’s Codex Micro features

IAMLIUBO has written firmware for the M5Stack Core2 IoT controller to reproduce the features of the $230 Codex Micro macro pad for OpenAI’s AI coding agent platform, enabling developers to more easily monitor and control agents. The original is neat with a CNC-milled enclosure, a rotary encoder, and a joystick, but it’s rather pricey (and now out of stock), only ships to the US, and the company has now launched pre-orders for a 25-key “Custom Alternative” going for $125. However, you can easily reproduce the same functionality with other macro pads with rotary encoders, such as the SayoDevice O3C, DuckyPad Pro, Waveshare MK10, T-Keyboard-S3 Pro, and others at a fraction of the price by simply remapping the keys. IAMLIUBO went another route with the M5Stack Core2 IoT controller since it doesn’t come with any keys. Instead, he leveraged the 2-inch touchscreen LCD of the ESP32 device with six agent keys, […]

July 17, 2026 by Jean-Luc Aufranc (CNXSoft) - No Comments

Espressif releases SDK for Aliro smart door locks based on ESP32-C or ESP32-H SoCs

Espressif Systems has just released the SDK for Aliro, designed for smart Matter door locks and other access control solutions built around ESP32-C (WiFi) or ESP32-H (Thread) microcontroller and third-party NFC chips. We recently wrote about the Aliro vendor-agnostic digital access control standard working over NFC, Bluetooth LE, or BLE+UWB. It’s basically the equivalent of Matter, but for smart locks, instead of the broader Smart Home ecosystem. The ultimate goal is to reduce fragmentation and allow users to use compliant wallets from Google, Apple, Samsung, and others to work with Aliro-compatible devices. Espressif’s SDK for Aliro (ESP-Aliro) currently supports the following features of Aliro-over-NFC: Standard Expedited Phase Fast Expedited Phase Reader Certificate Sending via AUTH1/LoadCert Command Keyslot to Look up Access Credential Public Key Mailbox of Exchange command Step-up Phase Espressif’s solution currently only works with Aliro NFC for tap-to-unlock applications, although Bluetooth LE and Bluetooth LE + UWB support […]

July 16, 2026 by Debashis Das - No Comments

OpenInfrared Point is an ESP32-S3 powered universal remote hub with Infrared, BLE, NFC, audio streaming (Crowdfunding)

OpenInfrared Point is a universal remote hub built around ESP32-S3 that lets users control compatible devices from a smartphone by scanning a QR code or tapping an NFC tag, eliminating the need for dedicated remote controls. Powered via USB-C, the Point hub can learn IR codes from existing remote controls and supports infrared, IP (HTTP), and Bluetooth Low Energy (BLE) device control, with RF support planned as a future add-on. Hardware features include an IR output for external emitters, an audio input for private TV audio streaming, built-in NFC, QR-code access, and support for controlling TVs, projectors, AV receivers, air conditioners, streaming devices, and other compatible equipment. OpenInfrared Point 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; 8MB PSRAM Wireless – WiFi 4 and Bluetooth LE 5 Storage – 16MB […]