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June 12, 2026June 12, 2026

M5Stack Capsule Kit v1.1- A Battery-powered ESP32-S3 IoT controller with IMU sensor, MEMS microphone, and IR transmitter

M5Stack Capsule v1.1 is a Stamp-S3A-based IoT controller with a microSD card slot, several sensors (6-axis IMU, microphone), an IR transmitter, a built-in 250 mAh battery, a few buttons, a buzzer, an RTC, and expansion capabilities through GPIO headers and a Grove connector. It’s an upgrade to the earlier Capsule based on the Stamp-S3 module. The new version still features an ESP32-S3 WiFi and Bluetooth microcontroller, 8MB flash, a USB-C port, and a few GPIOs, but benefits from the Stamp-S3A improvements, including an optimized antenna design and lower power consumption. We never had a look at the Capsule before, so let’s do it now. M5Stack Capsule v1.1 specifications: M5Stack Stamp-S3A module WiSoC – Espressif Systems ESP32-S3FN8 CPU Dual-core 32-bit Xtensa LX7 microcontroller with AI vector instructions up to 240MHz RISC-V ULP co-processor Memory – 512KB SRAM Storage – 8MB flash Wireless – 2.4GHz WiFi 4 (802.11b/g/n), Bluetooth 5.0 LE + […]

June 12, 2026June 12, 2026

$7.99 Seeed Studio Wio-S3 WiFi, Bluetooth LE, and LoRa IoT module combines ESP32-S3 and SX1262 RF transceiver

Seeed Studio Wio-S3 is a compact (21.6 x 16.5 x 3.3 mm) wireless module that combines an ESP32-S3R8 dual-core WiFi 4 and Bluetooth LE MCU and a Semtech SX1262 LoRa transceiver. The module includes 16MB Flash and 8MB PSRAM, and supports LoRa (EU868/US915) with up to +20.9 dBm transmit power and -137 dBm sensitivity. It also supports Wi-Fi 4 and BLE 5.0, and comes with two IPEX connectors for external antennas. With interfaces such as UART, I2C, SPI, ADC, and USB, and support for -40°C to 85°C operation, it is designed for remote monitoring, industrial automation, smart agriculture, and IoT data logging. Seeed Studio Wio-S3 module specifications: SoC – Espressif ESP32-S3R8 CPU – Dual-core Tensilica LX7 microcontroller up to 240 MHz with vector instructions for AI acceleration Memory – 8MB PSRAM Wireless – 2.4 GHz 802.11b/g/n WiFi 4 and Bluetooth 5.0 LE + Mesh connectivity Storage – 16MB external SPI flash […]

Bare-metal MSX2+ Emulator for ESP32-S3 offers custom LCD_CAM VGA implementation & Z80 optimizations

Ivan Svarkovsky’s S3-MSX-PC open-source project implements a bare-metal MSX2+ emulator running on an ESP32-S3 microcontroller and outputting 64-color VGA via a simple R-2R resistor ladder. It’s a fork of the Retro-Go emulator for ODROID-GO and other ESP32 devices, but with various optimizations. It was tested on an off-the-shelf ESP32-S3 board with one core handling the game logic and the other video and audio output. VGA is implemented through a clever resistor network that converts digital data into an analog signal that any old monitor understands, while audio relies on Sigma-Delta modulation with a multi-stage PDM filter. The USB host port on the board allows for the connection of a keyboard. S3-MSX-PC firmware highlights: Emulation Core – fMSX 6.0 — Full MSX1 / MSX2 / MSX2+ support Video Output VGA 640×480@60Hz, 16-bit parallel RGB via LCD_CAM Color Depth – 64 colors (2 bits per channel: R, G, B) Audio – PDM Stereo […]

June 5, 2026June 8, 2026

Erqos EQSP32CE – An industrial IoT ESP32-S3 PLC with Ethernet, RS232, RS485, CAN Bus, DIN Rail support

Erqos EQSP32CE is a DIN rail-mountable industrial IoT PLC based on an ESP32-S3 WiFi and Bluetooth SoC and offering Ethernet, RS-485, RS-232, and CAN bus industrial communication interfaces. The IIoT logic controller also features several protected digital (16x) and analog (8x) inputs, eight current inputs, eight “special mode” analog inputs, and sixteen digital outputs with PWM support. A USB-C port is used for firmware flashing and monitoring, and the PLC takes a wide 7V – 26V DC input voltage and outputs 5V/1A for I/O expansion modules. Erqos EQSP32CE specifications: SoC – Espressif ESP32-S3 dual-core LX7 processor @ 240 MHz with 8MB Flash, 512kB RAM, wireless connectivity (so probably ESP32-S3FN8) Communication interfaces 10/100 Mbps Ethernet RJ45 port Wi-Fi + Bluetooth Low Energy (on ESP32-S3) with internal antenna RS232 (protected) and RS485 half-duplex (protected) with support for Modbus RTU, DMX512, and custom serial protocols CAN Bus (protected) USB – 1x USB-C power for […]

EKOS A Programmable Open Source ePaper Hub in Solid Oak

June 5, 2026June 5, 2026

EKOS – An ESP32-S3 ePaper dashboard housed in an oak-aluminum enclosure (Crowdfunding)

Designed by StillFixing in Normandy (France), the EKOS is a local-first, low-power ePaper dashboard built around an ESP32-S3 SoC. It operates without any cloud dependency, subscriptions, or external accounts, offering full privacy, faster response times, and direct local control. The device comes in two variants: the EKOS Pure is a minimalist, non-touch version with two physical buttons for basic control, and the EKOS Sense adds a capacitive touch layer for smart home control, such as toggling devices, triggering scenes, or managing tasks. Both models feature a repair-friendly design with no adhesives, using four screws for assembly and a user-replaceable lithium-polymer battery. Additionally, the dashboard can be updated entirely over your home network without needing the internet. You can push data to the screen using a local API from a phone or PC, link it straight to Home Assistant, or use it to control other ESPHome devices around your house. EKOS […]

Gesture HW1 — A 10 DOF Robotic Hand and Wrist

May 28, 2026

Gesture HW1 is a 10-DOF ESP32-S3 robotic hand with high-dexterity manipulation (Crowdfunding)

The HW1 by Gesture Platforms is a 10-degree-of-freedom (DOF) high-dexterity robotic hand and wrist built around an ESP32-S3 wireless MCU. It’s primarily designed for researchers, educators, and hobbyists; it bridges the gap between basic DIY robotic hands and expensive industrial models. The device weighs just around 500 grams but can handle a 1kg dynamic load and a 3kg static load. It communicates via USB-C or Bluetooth 5.0 and comes with a companion desktop app as well as Python and C++ SDKs for custom development. Gesture HW1 specifications: Microcontroller – Espressif Systems ESP32-S3 dual-core LX7 microprocessor with WiFi 4 and Bluetooth 5.0 LE connectivity Degrees of Freedom (active) – 10 DOF Finger Flexion – 0° – 90° (at each joint) Finger Adduction/Abduction – -10° – 40° Thumb Flexion/Extension – 0° – 120° Thumb Adduction/Abduction – 20° – 90° Thumb Distal Flexion – 0° – 90° Wrist Flexion/Extension – -50° – 50° Wrist […]

May 22, 2026May 25, 2026

ESP32-S31 development boards unveiled for IoT, Smart Audio, and HMI applications

Two ESP32-S31 development boards are currently in the works, and the documentation is already available. The ESP32-S31 was unveiled last March, and it’s the most feature-rich ESP32 wireless microcontroller so far with two RISC-V cores, Gigabit Ethernet, 2.4 GHz WiFi 6, Bluetooth, and 802.15.4 connectivity, LCD and camera interfaces, and more. The ESP32-S31-Function-CoreBoard-1 development board is based on the ESP32-S31-WROOM-3 wireless module, and offers Gigabit Ethernet, USB 2.0 OTG, and onboard audio peripherals for connected IoT applications. The ESP32-S31-Korvo-1 is a multimedia-focused development board based on the same ESP32-S31-WROOM-3 module, but featuring a dual-microphone array for speech recognition and near/far-field wake-up, two speaker connectors, a 4.3-inch LCD, a 3MP camera module, and a microSD card slot. It targets low-cost, low-power, connected audio/video and HMI applications. ESP32-S31-Function-CoreBoard-1 development board Specifications: Wireless module – ESP32-S31-WROOM-3 SoC – ESP32-S31NRV16 CPU RISC-V HP (High-performance) RV32IMAFCP CPU @ 320 MHz with FPU, SIMD, etc. RISC-V […]

May 22, 2026May 22, 2026

M5Stack StopWatch ESP32-S3 devkit offers 1.75-inch touch AMOLED, microphone, speaker, and GPIO expansion

M5Stack Core StopWatch is an ESP32-S3-powered WiFi and Bluetooth development board with a 1.75-inch round AMOLED touch display, 16MB flash, and 8MB PSRAM designed for portable IoT devices, electronic badges, and wearables. The device also features a 1W speaker and a MEMS microphone for voice interaction, two programmable buttons, a vibration motor, a 6-axis IMU sensor, an RTC, and expansion capabilities through a Grove connector and GPIO headers. It’s powered by a 450 mAh battery managed by an “M5PM1 multi-level power management” solution and charged over a USB-C port. M5Stack Core StopWatch specifications: SoC – Espressif ESP32-S3R8 CPU – Dual-core Tensilica LX7 microcontroller up to 240 MHz with vector instructions for AI acceleration Memory – 8MB PSRAM Wireless – WiFi 4 and Bluetooth 5.0 LE + Mesh connectivity Storage – 16MB flash Display – 1.75-inch AMOLED round touch display with 466 x 466 resolution Audio 1W speaker MEMS microphone ES8311 […]