cnx-software.com14h ago

SN1 Solar Node – An ESP32-C3-based board with IP67 enclosure, solar charging, ESPHome firmware

https://fed.brid.gy/r/https://www.cnx-software.com/2026/04/07/sn1-solar-node-an-esp32-c3-based-board-with-ip67-enclosure-solar-charging-esphome-firmware/

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

CNX Software - Embedded Systems News
cnx-software.com1d ago

NASA Artemis Watch 2.0 – An ESP32-S3-powered, NASA-inspired wearable kit for education

https://fed.brid.gy/r/https://www.cnx-software.com/2026/04/07/nasa-artemis-watch-2-0-an-esp32-s3-powered-nasa-inspired-wearable-kit-for-education/

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 -

CNX Software - Embedded Systems News
cnx-software.com2d ago

ESP32-S3 gets post-quantum encryption with Aethyr Edge Node open-source firmware

https://fed.brid.gy/r/https://www.cnx-software.com/2026/04/05/esp32-s3-gets-post-quantum-encryption-with-aethyr-edge-node-open-source-firmware/

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

CNX Software - Embedded Systems News
cnx-software.com3d ago

Velxio is an open-source, self-hosted Arduino, Raspberry Pi, and ESP32 simulator

https://fed.brid.gy/r/https://www.cnx-software.com/2026/04/04/velxio-open-source-self-hosted-arduino-raspberry-pi-and-esp32-simulator/

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

CNX Software - Embedded Systems News
Brad Linder4d ago
The new ESP32-S31 chip for IoT devices features a 320 MHz dual-core 32-bit RISC-V MCU with support for 2.4 GHz WiFi 6, Bluetooth 5.4, Gigabit Ethernet, Thread, and Zigbee support. https://www.espressif.com/en/news/ESP32_S31_Release #Espressif #ESP32S31 #ESP32
Espressif Unveils ESP32-S31: A Dual-Core RISC-V SoC with Wi-Fi 6, Bluetooth 5.4, and Advanced HMI Capabilities

ESP32-S31 delivers comprehensive multi-protocol connectivity, rich multimedia interfaces, and hardware-accelerated security for next-generation IoT applications.

Espressif Systems
N-gated Hacker News4d ago
Behold, the ESP32-S31! It's like a WiFi 6, Bluetooth 5.4, 320MHz #RISC-V headache wrapped in a spaghetti of acronyms that even the engineers will need a decoder ring to understand. 🤯🔍 Meanwhile, #Espressif continues its noble quest to redefine 'user-friendly' as 'good luck finding the right spec sheet'. 📜😂
https://www.espressif.com/en/news/ESP32_S31_Release #ESP32S31 #WiFi6 #Bluetooth54 #TechNews #HackerNews #ngated
Espressif Unveils ESP32-S31: A Dual-Core RISC-V SoC with Wi-Fi 6, Bluetooth 5.4, and Advanced HMI Capabilities

ESP32-S31 delivers comprehensive multi-protocol connectivity, rich multimedia interfaces, and hardware-accelerated security for next-generation IoT applications.

Espressif Systems
Hacker News4d ago

ESP32-S31: 320MHz 2C RV32IMAFCP+CLIC, 512KB SRAM, GbE, 802.11ax, 61 GPIO

https://www.espressif.com/en/news/ESP32_S31_Release

#HackerNews #ESP32S31 #320MHz #IoT #Technology #Espressif #Microcontroller #EmbeddedSystems

Espressif Unveils ESP32-S31: A Dual-Core RISC-V SoC with Wi-Fi 6, Bluetooth 5.4, and Advanced HMI Capabilities

ESP32-S31 delivers comprehensive multi-protocol connectivity, rich multimedia interfaces, and hardware-accelerated security for next-generation IoT applications.

Espressif Systems
cnx-software.comMar 31

T-Display-P4 smartphone-like devkit features ESP32-P4 MCU, ESP32-C6 wireless SoC, and SX1262/LR2021 LoRa transceiver

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/31/t-display-p4-smartphone-like-devkit-features-esp32-p4-mcu-esp32-c6-wireless-soc-and-sx1262-lr2021-lora-transceiver/

T-Display-P4 smartphone-like devkit features ESP32-P4 MCU, ESP32-C6 wireless SoC, and SX1262/LR2021 LoRa transceiver

LILYGO T-Display-P4 is a feature-rich ESP32-P4 + ESP32-C6 devkit, but with a smartphone-like design and support for GPS, Ethernet, and LoRaWAN through SX1262 or LR2021 LoRa transceiver, besides the usual WiFi 6, Bluetooth 5.x, and 802.15.4 wireless connectivity. The T-Display-P4 is offered with either a 4.05-inch IPS display and a 2MP front-facing camera or a 4.1-inch AMOLED with a 2MP rear camera. The devkit is equipped with 32MB PSRAM and 16MB NOR flash for the ESP32-P4, a microSD card slot, a built-in microphone and speaker, a 3.5mm audio jack, a few USB ports, and a 9-axis motion sensor, as well as a GPIO port and two Qwiic connectors for expansion. T-Display-P4 specifications: MCU - ESP32-P4 CPU Dual-core RISC-V microcontroller @ 360 MHz with AI instructions extension and single-precision FPU Single-RISC-V LP (Low-power) MCU core @ up to 40 MHz GPU – 2D Pixel Processing Accelerator (PPA) VPU – H.264 and

CNX Software - Embedded Systems News
cnx-software.comMar 30

DIY ESP32-S3 Internet radio features Winamp-styled user interface

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/30/diy-esp32-s3-internet-radio-features-winamp-styled-user-interface/

cnx-software.comMar 29

M5Stack Stamp-P4 – A tiny ESP32-P4 USB-C board with optional Wi-Fi 6 and Bluetooth 5.4

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/29/m5stack-stamp-p4-a-tiny-esp32-p4-usb-c-board-with-optional-wi-fi-6-and-bluetooth-5-4/

M5Stack Stamp-P4 – A tiny ESP32-P4 USB-C board with optional Wi-Fi 6 and Bluetooth 5.4

M5Stack has just introduced the Stamp-P4, a tiny USB-C development board built around the ESP32-P4 high-performance RISC-V MCU chip, featuring 16MB of Flash and 32MB of PSRAM, and optional Wi-Fi 6 and Bluetooth 5.4 support through the ESP32-C6-MINI-1-based Stamp-AddOn C6 module. Despite its small size (29.8 x 22.0 x 4.3mm), the Stamp-P4 offers a wide range of interfaces, including a MIPI-CSI camera connector, as well as a MIPI DSI display interface, RMII Ethernet, USB 2.0 HS, and up to 44x GPIOs via 1.27mm/2.00mm pitch castellated holes and a few through holes. M5Stack Stamp-P4 specifications: SoC – Espressif Systems ESP32-P4NRW32 CPU Dual-core RISC-V microcontroller @ 360 MHz with AI instructions extension and single-precision FPU Single-RISC-V LP (Low-power) MCU core @ up to 40 MHz GPU – 2D Pixel Processing Accelerator (PPA) VPU – H.264 and JPEG codecs support Memory – 768 KB HP L2MEM, 32 KB LP SRAM, 8 KB TCM, 32MB

CNX Software - Embedded Systems News