Espressif Category - Page 31 of 94 - CNX Software

March 1, 2023March 1, 2023 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

LILYGO T-TWR is an ESP32-S3 board with an SA868 Walkie-Talkie module

LILYGO T-TWR is an ESP32-S3 development board fitted with an SA868 Walkie-Talkie module and a UHF or VHF antenna, a speaker, a microphone, a small 0.96-inch OLED, and a 18650 battery holder, plus some I/Os for expansion. Equipped with an ESP32-S3-WROOM-1-16NR8 module, the T-TWR offers WiFi 4 and Bluetooth 5.0 connectivity, a dual-core processor with 16MB flash and 8MB PSRAM, and enables users to design their own Walkie-Talkie, while its expansion capabilities allow the control of devices. LILYGO T-TWR specifications: Wireless module – Espressif ESP32-S3-WROOM-1-N16R8 module with ESP32-S3 dual-core LX7 microprocessor @ up to 240 MHz with Vector extension for machine learning, 16MB FLASH, 8MB PSRAM, WiFi 4 and Bluetooth 5 LE/Mesh Display – 0.96-inch OLED with 128×64 resolution based on SSD1306 I2C display driver SA868 Walkie-Talkie module based on RDA1846S chip Bandwidth: 12.5 kHz/25 kHz Sensitivity: -124 dBm Support 1.6W or 1.8W mode. The latter is not recommended due […]

February 26, 2023February 28, 2023 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

ePulse Feather ESP32 development board is optimized for low power consumption (in deep sleep)

Thingpulse ePulse Feather is an ESP32 development board following Adafruit’s Feather form factor and optimized for low power with 12 to 27 uA deep sleep power consumption. The board is based on the ESP32-WROVER with 8MB Flash and 8MB SPRAM and comes with a USB-C connector for charging the battery and programming through a CH9102F UART chip, as well as the I/Os headers provided by the Feather form factor. The board can be especially useful in battery-operated WiFi remote controls for home automation or other purposes that sleep most of the time until the user presses one of the buttons. ThingPulse ePulse Feather specifications: Wireless module – Espressif Systems ESP32-WROVER-E-N8R8 module with ESP32-D0WD-V3 or ESP32-D0WDR2-V3 dual-core microcontroller @ 240 MHz with 8MB QSPI flash, 8MB QSPI PSRAM USB – 1x USB Type-C port for power/charging and programming via CH9102F UART to TTL chip. Expansions – 12-pin + 16-pin headers with […]

February 23, 2023March 16, 2023 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

SONOFF MINI Extreme (MINIR4) ESP32 WiFi smart switch can fit into most gang boxes

SONOFF MINI Extreme (aka MINIR4) is a ridiculously small WiFi smart switch based on ESP32 wireless microcontroller and designed to be connected to a load such as a light bulb and a wall switch that can be a momentary switch, a door exit switch, an SPDT switch, a latching switch, or even dry contact sensors. The tiny form factor (39.5×33 x16.8mm) enables the WiFi smart switch to fit into various boxes, even the smaller European gang boxes. Just like other SONOFF home automation devices, the MINIR4 works with eWelink mobile app, but it also implements some new interesting features such as the ‘Detach Relay’ mode. SONOFF MINI Extreme (MINIR4) specifications: MCU – Espressif Systems ESP32 dual-core wireless microcontroller Connectivity 2.4 GHz WiFi 4 Bluetooth LE used for pairing Input – 100-240V ~ 50/60Hz 10A Max Output – 100-240V ~ 50/60Hz 10A Max (resistive load) Dimensions – 39.5 x 33 x […]

February 14, 2023February 14, 2023 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

T-Display-S3 Touch ESP32-S3 board adds a touchscreen panel

T-Display-S3 Touch is an update to the T-Display-S3 “Basic” ESP32-S3 board that adds a 320×170 touchscreen using a CST816 I2C touchscreen sensor. The rest of the specifications remains the same with an ESP32-S3R8 dual-core WiFi and Bluetooth LE microcontroller, 16MB flash, a 1.9-inch 320×170 color display, a USB Type-C port, a few I/Os, and support for a LiPo battery. T-Display-S3 Touch specifications: Wireless MCU – Espressif Systems ESP32-S3R8 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 8MB PSRAM, wireless connectivity Storage – 16MB flash Connectivity via ESP32-S3 2.4 GHz 802.11 b/g/n Wi-Fi 4 with 40 MHz bandwidth support Bluetooth Low Energy (BLE) 5.0 connectivity with long-range support, up to 2Mbps data rate. PCB antenna and external u.FL antenna support Display – 1.9-inch 320×170 IPS full-color LCD using the ST7789V 8-bit parallel display controller and Shenzhen Zhengxin CST816 I2C touchscreen sensor. USB – […]

February 13, 2023 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

M5Stamp S3 WiFi and BLE IoT module offers up to 23 GPIOs through 2.54mm and 1.27mm pitch holes

M5Stamp S3, aka M5Stamp ESP32S2 or Stamp S3, is a tiny ESP32-S3 WiFi & Bluetooth LE (BLE) IoT module with a USB Type-C port, over 20 I/Os available through 2.54mm and 1.27mm pitch headers and castellated holes, and a heat-resistant cover. Many of the “new” ESP32-S3 hardware platforms launches these days are often updates from an ESP32 design, and the M5Stack’s M5Stamp S3 is no exception building on the original M5Stamp Pico, and its ESP32-C3 variants, namely M5Stamp C3 and C3U. M5Stamp S3 specifications: WiSoC – Espressif Systems ESP32-S3FN8 dual-core 32-bit Xtensa LX7 microcontroller with AI vector instructions up to 240MHz, RISC-V ULP co-processor, 512KB SRAM, 2.4GHz WiFi 4 (802.11b/g/n), Bluetooth 5.0 BLE + Mesh, 8MB flash as found in the M5Stack ATOMS3 (Lite). Connectivity 2.4 GHz WiFi 4, 20 MHz and 40 MHz bandwidth, IEEE 802.11 b/g/n protocol, up to 150 Mbps Bluetooth 5, Bluetooth Mesh, with supports for […]

February 7, 2023 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

ESP32 MPY-Jama is a MicroPython IDE for ESP32 boards

ESP32 MPY-Jama is a cross-platform MicroPython IDE specifically designed for ESP32 boards with a file manager, a REPL terminal, real-time dashboards, and various ESP32-specific features. The IDE is an open-source Python program using pyWebView and pySerial plus some JavaScript for the user interface, and the developer of the program, Jean-Christophe Bos, provides binaries for Windows 64-bit and macOS 64-bit Arm or x86. It’s also possible to use it in Linux but needs to be built from source. Some of the key features of the ESP32 MPY-Jama IDE include: MicroPython code editor with syntax highlighting REPL interface Access to information dashboards with real-time data about WiFi and Bluetooth connections, system info with GPIO status, CPU frequency, memory and SPI flash details Easy 2-click methods to connect to WiFi and create an access point Graphical interface to install a new firmware through esptool Ability to create, import, and run “Jama Funcs” mini-applications […]

February 5, 2023February 5, 2023 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

M5Stack ATOMS3 Lite is a tiny ESP32-S3 IoT controller with WiFi, Bluetooth, and an infrared transmitter

ATOMS3 Lite ESP32-S3 Infrared Transmitter

ATOMS3 Lite is the latest ESP32-S3 IoT platform from the M5Stack Atom series wireless programmable controllers, doing without the 0.85-inch display and IMU sensor found in the ATOM S3 development kit simply using an RGB LED instead. M5Stack ATOM S3 Lite features the ESP32-S3FN8 WiFi and Bluetooth SoC with 8MB SPI flash, an infrared transmitter, a USB-C port for power and programming, a few I/O pins, user and reset buttons all in just a 24x24x9.5mm housing. ATOMS3 Lite specifications: Wireless MCU – Espressif Systems ESP32-S3FN8 dual-core 32-bit Xtensa LX7 microcontroller with AI vector instructions up to 240MHz, RISC-V ULP co-processor, 512KB SRAM, 2.4GHz WiFi 4 (802.11b/g/n), Bluetooth 5.0 BLE + Mesh, 8MB flash Antenna – Internal “3D” antenna Expansion 9x pins with G5, G6, G7, G8, G38, and G39 GPIOs, 5V, 3.3V, and GND 4-pin Grove connector Misc IR LED (infrared transmitter/blaster) WS2812B-2020 RGB LED Reset and user buttons M.2 […]

February 3, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

Eduponics Mini v2.0 Smart Agriculture IoT kit gets more flash, new sensors, 4-channel valve board (Crowdfunding)

Eduponics Mini 2.0 Smart Agriculture IoT Kit

Eduponics Mini v2.0 is a Smart Agriculture IoT kit based on the ESP32 wireless microcontroller with built-in sensors to measure temperature, humidity, barometric pressure, and ambient light, and interfaces to connect water level and soil moisture sensors. The new board builds upon the Eduponics Mini introduced two years ago, but based on the 8MB flash version of the ESP32-WROVER-B module, a different mix of sensors, a BM8563 RTC module replacing the DS1307 RTC chip, and the addition of Grove connectors for external sensors from companies such Elecrow. Eduponics Mini v2.0 specifications with highlights in bold or strikethrough showing the differences with the first revision of the board: Wireless module – ESP32-WROVER-B module with ESP32 Wi-Fi and Bluetooth SoC, 8MB QSPI flash loaded with MicroPyhon firmware, 8MB SPRAM, PCB antenna Built-in sensors BH1750 I2C light sensor Footprint for BME280 I2C temperature, humidity, and barometric sensor QMP6988 I2C Barometric air pressure sensor […]