WiQwiic-32 – A compact USB-C IoT board with eight Qwiic connectors (Crowdfunding)
Hack The Board's WiQwiic-32 is a small USB-C IoT development board based on an ESP32-S3-WROOM-1 Wi-Fi and Bluetooth module, and equipped with a 1.14-inch LCD and eight Qwiic ports for easy prototyping with compatible modules. It also features a microphone and a buzzer for audio interaction, four buttons, two RGB LEDs, and a power LED. There aren't any through-holes for GPIO pins, so expansion is only possible through the Qwiic connectors, although you can always add a Qwiic to header converter module if you ever need breadboard-compatible GPIO headers. WiQwiic-32 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 Antenna – PCB antenna Display – 1.14-inch TFT display Audio On-board buzzer Built-in microphone for voice and sound detection USB
Trail Mate open-source firmware leverages Meshtastic and MeshCore for ESP32 off-grid handhelds
vicliu624's Trail Mate is an open-source firmware for off-grid communication and GPS coordinates sharing, leveraging the Meshtastic, MeshCore, and other projects, and designed for ESP32 handhelds such as LILYGO's T-LoRa Pager or M5Stack's Tab5 with a LoRaWAN module. The Trail Mate firmware provides a fixed north-up GPS map, direct LoRa text messaging through Meshtastic or MeshCore mesh networks without relying on a smartphone, and prioritizes stability, efficiency, and interoperability over feature density. Trail Mate user interface highlights: Simple main menu with four icons: GPS, LoRa chat, tracker, and system utilities. GPS map Fixed North-Up map orientation (no rotation) Fully offline map rendering from SD card tiles (png/jpg files) Three switchable base layers: OSM / Terrain / Satellite Optional contour overlay for terrain shape awareness Real-time position marker for the current GPS fix Discrete zoom levels optimized for embedded systems Simple breadcrumb trails for path awareness Fast in-page layer switching via
Open-source hardware DAB+ receiver combines ESP32 SoC with Skyworks SI4684 digital radio chip
When I wrote about a DIY ESP32-S3 internet radio last week, "raspbeguy" commented he'd rather choose an ESP32-based DIY DAB+ receiver kit, such as the one offered by the PE5PVB project based on a Skyworth SI4684 receiver. I first heard about DAB (Digital Audio Broadcast) in 2003 when we considered adding it to a CD player. It's basically the digital equivalent of analog FM/AM radios, and I haven't heard much about it since DAB and the "new" DAB+ standard are mostly a European story (see coverage map below). PE5PVB's open-source hardware DAB receiver might still be worth a look. PE5PVB's SI4684 ESP32 DAB+ receiver features: Controller - ESP32 microcontroller with WiFi and Bluetooth (DoIT ESP32 devkit v1) Storage - MicroSD card slot Display - Color LCD screen with 320x240 resolution (SPI) Audio 2x RCA connectors for speakers 3.5mm headphone jack with amplifier DAB+ receiver - Skyworks SI4684 loaded with DAB+
New release 0.5 of espflasher is now available. Better, faster, and stub support too!
#golang #tinygo #esp32 #espressif
https://github.com/tinygo-org/espflasher
GitHub - tinygo-org/espflasher: Go CLI and library for flashing firmware to Espressif ESP8266 and ESP32-family microcontrollers
Go CLI and library for flashing firmware to Espressif ESP8266 and ESP32-family microcontrollers - tinygo-org/espflasher
Flash Bee – An ESP32-C3-based DIY handheld lightning detector
Flash Bee is an easy-to-make DIY handheld lightning detector based on off-the-shelf parts such as the XIAO ESP32C3 board and the Round Display for XIAO, as well as a 3D-printed enclosure. The design relies on the AMS AS3935 Franklin lightning sensor that's been around for years, and found in kits like Sparkfun's Arduino IoT weather station, which is capable of detecting lightning up to 40 km away with 1km accuracy. While it's not quite new technology, I found the Flash Bee design to be rather cute and convenient, and it looks really easy to reproduce. Flash Bee key components: Seeed Studio XIAO ESP32-C3 with Wi-Fi 4 & Bluetooth LE 5.0 connectivity ($4.90) Round Display for XIAO - 1.28-inch touchscreen display with 240×240 resolution, 65K colors, 100 Hz refresh rate ($18) Grove Lightning Sensor AS3935 ($26.90, alternative link if out of stock) 3.7V 400mAh LiPo battery Slide switch 2x M2 5mm
SN1 Solar Node – An ESP32-C3-based board with IP67 enclosure, solar charging, ESPHome firmware
Designed by Granz Scientific LLC, the SN1 Solar Node is an ESP32-C3-based IoT node/development board designed specifically for off-grid IoT projects. Development boards like Seeed Studio Wio Tracker, or industrial controllers like DFRobot LoRaWAN Control Terminal, allow you to handle your own battery management and weatherproofing, or on the other end, you have products like SenseCAP Solar Node P1 that come with everything integrated but do not allow adding custom hardware. This is where the SN1 Solar Node is different; it features an IP67-rated enclosure with an integrated solar panel on the lid, 18650 battery support, and prototyping strip-board areas for custom circuitry. It also includes a smart power switch that allows the battery to continue charging from the solar panel even when the board is powered off. Additionally, it provides battery voltage monitoring, breaks out most GPIOs for easy access, and includes optional jumpers for an onboard LED and
NASA Artemis Watch 2.0 – An ESP32-S3-powered, NASA-inspired wearable kit for education
CircuitMess NASA Artemis Watch 2.0 is a programmable, NASA-themed smartwatch based on an ESP32-S3 WiFi and Bluetooth module and a 1.14-inch monochrome display. The watch also features an accelerometer, a gyroscope, a buzzer, an RTC, a button, several LEDs, and a USB port for programming and charging the built-in 600 mAh battery. NASA Artemis Watch 2.0 specifications: Core module - ESP32-S3-MINI-1-N4R2 SoC – ESP32-S3 dual-core Xtensa LX7 processor with WiFi 4 and Bluetooth 5.0 connectivity Memory - 2MB PSRAM Storage – 4MB QSPI flash PCB antenna Display - Built-in 1.44-inch display USB - 1x USB Type-C port for charging and programming Sensors 6-axis LSM6DS3TR accelerometer and gyroscope Temperature sensor (TBC) Misc Lever button 6x user LEDs, 1x power LED, 1x RGB LED Buzzer RTC + backup battery Power Supply 5V via USB-C port 600 mAh LiPo battery, good for 2 to 3 hours on a charge Dimensions and Weight -
ESP32-S3 gets post-quantum encryption with Aethyr Edge Node open-source firmware
Aethyr Research has released post-quantum encrypted IoT edge node firmware for ESP32-S3 targets that boots in 2.1 seconds and supports full PQC (Post Quantum Cryptography) handshakes in 35ms. Public-key cryptographic algorithms such as RSA and ECC will soon have to be replaced due to the advance of quantum computers that will be able to crack such encryption within a few hours to days using Shor's algorithm. While there's still time, Google recently updated its timeline for post-quantum cryptography migration to 2029, mostly because it's possible to store data now for an attack once sufficiently powerful quantum computers become available, and the NIST FIPS 203 standard (ML-KEM-768) mandates quantum-resistant security by 2035. The Aethyr Edge Node open-source firmware relies on formally verified ML-KEM-768 (FIPS 203) post-quantum key exchange, BLAKE3 integrity, and XChaCha20-Poly1305 encryption to implement post-quantum encryption to connect to a server over the AethyrWire Protocol (AWP). It's a building block
Velxio is an open-source, self-hosted Arduino, Raspberry Pi, and ESP32 simulator
Velxio is an open-source, self-hosted simulator for Arduino, ESP32, and Raspberry Pi boards that works directly in your web browser. You can drag-and-drop boards, connect components and modules, write and run code in Arduino or Python, and access the serial console, all without hardware. If it looks similar to what the Wokwi simulator has to offer, it's because Velxio was inspired by it and even integrates the AVR8 CPU emulator, RP2040 emulator, and QEMU fork for ESP32 Xtensa emulation from the Wokwi project. But the key difference is that Velxio can be self-hosted, although there's also an online demo. Velxio currently supports 19 targets across five architectures AVR8 (ATmega / ATtiny) Arm Cortex-M0+ (Raspberry Pi RP2040) RISC-V RV32IMC/EC (ESP32-C3 / CH32V003) Xtensa LX6/LX7 (ESP32 / ESP32-S3 via QEMU) Arm Cortex-A53 (Raspberry Pi 3 Linux via QEMU) The project also offers 48 components. The developer mentions that additional features compared to
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