The ESP32-2424S012 is an ESP32-C3 WiFi and BLE development board with a 1.28-inch round touchscreen color display that is fully housed in a black or white plastic enclosure and suitable for Arduino and LVGL library. As we’ll see further below some have also used it with Tasmota and ESPHome firmware. We previously covered several tiny ESP32-S3/ESP32-C3 boards with a round display such as the LILYGO T-RGB ESP32-S3 board, Makerfabs “ESP32-S3 Round SPI TFT with Touch 1.28″, SB Components’ Dual Roundy, but they either don’t come with a case at all, or only the front is covered, but the bottom is laid bare. The ESP32-2424S012 is quite similar, but it can be purchased with a case that covers both the front and back with some openings for expansion connectors. ESP32-2424S012 board specifications: Wireless module – Espressif Systems ESP32-C3-MINI-1U module SoC – ESP32-C3 RISC-V microcontroller @ 160 MHz with 400 KB SRAM, 2.4 […]
NBIOT/LTE-M Air Monitor – A solar-powered ESP32-S3 multi-sensor board with SIM7080G NB-IoT & LTE-M modem
The NBIOT/LTE-M Air Monitor is a solar-powered device that utilizes a combination of ESP32-S3 and SIM7080G modules for remote environmental monitoring. It monitors and transmits environmental parameters such as temperature, humidity, CO2, TVOC, and light intensity using low-power wide-area network (LPWAN) technology ensuring efficient power consumption, durability, and reliable data transmission. Previously we have written about similar environment monitor devices like the Airlytix ES1, Sonoff SC WiFi, V-Air Monitro, and devices like Arduino MKR IoT Carrier Rev2, Radair mini gateway, and Nicla Sense ME designed for environment monitoring applications. Feel free to check those out if you are interested in this type of product. NBIOT/LTE-M Air Monitor specification Wireless Module – ESP32-S3-WROOM-1-N16R8 Espressif Systems ESP32-S3R8 – Dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 8MB PSRAM Storage – 16 MB flash Wireless – 2.4 GHz WiFi 4 and Bluetooth PCB antenna Cellular connectivity Module – SIMCom SIM7080G LTE Cat […]
LILYGO T-ETH-ELite ESP32-S3 Ethernet PoE board supports stackable LoRaWAN and Cellular expansion modules
LILYGO T-ETH-Elite is an ESP32-S3-powered IoT board with an Ethernet RJ45 port supporting PoE and a 40-pin GPIO header for stackable shields that offer support for LoRaWAN, 2G, NB-IoT, or/and 4G LTE cellular connectivity. The ESP32-S3 board allows users to build gateways with Ethernet, WiFi, Bluetooth, GNSS, LoRaWAN, and Cellular (2G, NB-IoT, 4G LTE) connectivity, and they can easily switch cellular modules to match specific requirements. LILYGO T-ETH-Elite specifications: Wireless module – Espressif ESP32-S3-WROOM-1 MCU – ESP32-S3R8 dual-core Tensilica LX7 up to 240 MHz with 512KB SRAM, up to 8MB PSRAM Storage – 16MB flash Connectivity – WiFi 4 and Bluetooth LE 5 PCB antenna Storage – MicroSD card slot Networking – 10/100Mbps Ethernet RJ45 port via W5500 SPI to Ethernet chip USB – USB Type-C port for power and programming Expansion – 40-pin (mostly) Raspberry Pi-compatible GPIO header for shields (up to 23x GPIO, USB 2.0, UART, 5V, 3.3V, […]
Arduino to switch from Arm Mbed to Zephyr RTOS
Following Arm’s decision to stop supporting Mbed from July 2026 onwards, Arduino has now decided to use Zephyr RTOS instead of Arm Mbed for Arduino boards that rely on the latter including Arduino GIGA, Arduino Nano 33 BLE, Arduino Nano RP2040 Connect, as well as Arduino PRO boards/solutions such as the Portenta, Nicla, and Opta families. Note that Arduino UNO, MKR, and Nano families are not impacted by the change since their Arduino Core implementation does not rely on Mbed. The change is not going to happen overnight as software development takes time, and Arduino plans to release the first beta based on ZephyrOS by the end of 2024. and a rollout for various boards starting in 2025 long before Arm Mbed is phased out for good. Arduino is not new to the Zephyr project as the company became a Silver member last year, and they were aware that Arm […]
TinyWatch S3 is an open-source, customizable smartwatch powered by ESP32-S3 SoC
The TinyWatch S3 is an ESP32-S3 development board in a smartwatch form factor from Seon Rozenblum, also known as Unexpected Maker. It is powered by the ESP32-S3 wireless microcontroller with 8MB quad SPI flash storage and 2MB of additional QSPI PSRAM. It features a 240 x 280 LCD with capacitive touch (via a CST816T module) and several onboard sensors including a 6-axis inertial measurement unit, a magnetometer, and a MEMS microphone. It has a USB-C port for power, programming, and charging a connected LiPo battery (250mAh or 500mAh). While the product’s firmware is still in active development, it is usable as a watch and even a daily driver. The TinyWatch S3 is described as a “wrist-wearable ESP32-S3 development board” but lacks pin headers and is not breadboard compatible. The hardware is open-source but the product is mostly useful for firmware development, testing, and other general projects. The firmware is being […]
LILYGO T-Halow is an ESP32-S3 board with long-range WiFi HaLow, OV2640/OV5640 camera support
LILYGO T-Halow is an ESP32-S3 board equipped with a WiFi HaLow module with up to 1.2km range, a connector compatible with OV2640 and OV5640 camera modules, and an 18650 battery holder for power, as well as several GPIOs for expansion. We first wrote about 802.11ah low-power long-range WiFi standard operating at 900 MHz in 2014, but adoption has been slow and we’ve seen a few 802.11ah (WiFi HaLow) chips from Newracom and Morse Micro over the years, as well as USB adapters, a Raspberry Pi HAT, a mini PCIe card, gateways, and some development boards. All those rely on a Linux host, but the LILYGO T-Halow features a TX-AH WiFI HaLow module from Taixin Semiconductor that’s controller by AT commands through an ESP32-S3 or a micro USB port. LILYGO T-Halow specifications: Wireless modules ESP32-S3-WROOM-1 wireless module SoC – ESP32-S3 dual-core Tensilica LX7 microcontroller @ up to 240 MHz with 2.4 […]
LOLIN S3 Mini Pro – A tiny ESP32-S3 board with a 0.85-inch display and a multi-color PCB
LOLIN S3 Mini Pro is a tiny ESP32-S3 WiFi and BLE board with a 0.85-inch display and it’s one of the first boards I’ve seen with a multi-color PCB that some PCB manufacturers have been offered recently. The board features an ESP32-S3FH4R2 microcontroller with 4MB flash and a 2MP PSRAM, a 128×128 TFT display, a 6-axis motion/attitude sensor, and GPIO headers that make it compatible with LOLIN D1 mini shields for expansion. LOLIN S3 Mini Pro specifications: SoC – Espressif Systems ESP32-S3FH4R2 CPU – Dual-core Tensilica LX7 microcontroller @ up to 240 MHz Wireless – 2.4 GHz 802.11n WiFi 4 and Bluetooth 5.0 LE connectivity Memory – 2MB PSRAM Storage – 4MB SPI flash Display – 0.85-inch 128×128 LCD TFT display with GC9107/GC9A01 driver Sensor – 6-axis MEMS IMU/attitude sensor (QMI8658C) Expansion 2x 8-pin headers with up to 12x GPIO, ADC, DAC, I2C, SPI, UART, USB OTG; compatible with LOLIN […]
Lattice MachXO5D-NX FPGA family enables Hardware Security in Programmable FPGAs
Lattice Semiconductor has recently introduced the MachXO5D-NX FPGA family, which integrates a hardware root of trust (RoT) into low-power FPGAs. This addresses security challenges by combining on-chip Flash memory and hardware encryption to minimize code capture risks during load time. The MachXO5D-NX family includes three variants with logic cell counts of 27k (FMXO5-25), 53k (LFMXO5-55T), and 96k (LFMXO5-100T). These FPGAs feature built-in hardware encryption, a cryptographic engine supporting AES-256, ECDSA-384/521, SHA2-256/384/512, and RSA 3072/4096, and a unique secret identity (USID) for device identity protection. Built on a 28-nm fully-depleted silicon-on-insulator (FD-SOI) process, these FPGAs reduce power consumption by 75% and lower soft error rates by 100x(as the company mentions). They support interfaces such as MIPI D-PHY (CSI-2, DSI), LVDS, Gigabit Ethernet, and PCIe, making them suitable for secure edge applications. Lattice MachXO5D-NX FPGA family specifications FPGA – Lattice Semi MachXO5D-NX FPGA family (27k (FMXO5-25), 53k (LFMXO5-55T), and 96k (LFMXO5-100T)) Programmable […]