LILYGO T-QT Pro 0.85-inch WiFi IoT display adds support for battery charging

LilyGO T-QT Pro ESP32-S3 board

LILYGO T-QT Pro is an ESP32-S3 WiFi and BLE IoT board with a 0.85-inch color display, 4MB flash, 2MB PSRAM, a USB-C port, a few GPIOs, and support for LiPo battery with charging. It is an upgrade to the ESP32-S3-based LILYGO T-QT V1.1 board that also supports LiPo battery power but lacks a charging circuit, so you had to remove the battery and charge it manually each time. The T-QT Pro adds a charging circuit and switches from an ESP32-S3 with an 8MB flash design to one using ESP32-S3FN4R2 with 4MB flash and 2MB PSRAM. LilyGO T-QT Pro specifications: Wireless MCU – Espressif Systems ESP32-S3FN4R2 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 4MB flash, 2MB PSRAM, wireless connectivity 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, […]

ESP32 OpenMQTTGateway smart plug acts as an BLE MQTT gateway and a power meter

ESP32 BLE Gateway Power Meter

The Theengs Plug ESP32 smart plug runs OpenMQTTGateway firmware to serve as a BLE MQTT gateway and power meter compatible with Home Assistant, Homebridge, OpenHAB, DomoticZ, FHEM, Jeedom, NodeRed, AWS, and any MQTT-compatible IoT or Smart Home system. While the Matter standard should improve interoperability between Smart Home frameworks over time, there are still millions of devices already produced that are not Matter compatible, and the Theengs Plug aims to at least partially address this issue by helping users reduce the number of hubs required and have only one that supports different ecosystems. Theengs Plug hardware specifications: Microcontroller – ESP32 dual-core wireless MCU with 2.4 GHz WiFi and Bluetooth LE connectivity Network Protocol – MQTT Power Supply – 100-120VAC, 60Hz, up to 15A Dimensions – 103 x 61 x 34.6mm Temperature Range – Operating: 0ºC ~ 40ºC; storage: -10°C ~ 50°C Humidity – 0%~95% (no condensation) Certification – UL Some […]

ZSWatch open-source hardware nRF52833 smartwatch runs Zephyr RTOS

ZSWatch open-source hardware nRF52833 smartwatch

ZSWatch is an open-source hardware smartwatch based on an u-Blox ANNA-B402 module with Nordic Semi nRF52833 Bluetooth 5.1 SoC and running Zephyr real-time operating systems. We’ve seen several open-source hardware smartwatches over the years, as well as open-source firmware projects such as AsteroidOS or InfiniTime with the latter used in the PineTime smartwatch, and the ZSWatch adds to the list of interesting open-source wearables with all source files made public. ZSWatch specifications: Wireless module – u-blox ANNA-B402 based on Nordic Semi nRF52833 Arm Cortex-M4F microcontroller with Bluetooth LE 5.1 and direction finding support Storage – 8MB flash (MX25R6435FZNIL0) Display – 1.28-inch 240×240 IPS TFT circular display with GC9A01 driver; covered with Sapphire Crystal Glass. Sensors Accelerometer (LIS2DS12TR) for step counting, etc… MAX30101EFD for pulse oximetry and heart rate monitoring Misc 3x buttons for navigation (prev, next, enter) Vibration motor (DRV2603RUNT) with haptics driver to give better vibration control. Power Management […]

LILYGO T-RSC3 ESP32-C3 board features isolated RS232 & RS485 interfaces, 5 to 24V DC input

ESP32-C3 board with RS232 and RS485

LILYGO T-RSC3 is a relatively compact ESP32-C3 board with WiFi 4 and Bluetooth LE 5.0 connectivity, support for RS232 and RS485 communication protocols through a DB9 connector and a terminal connector respectively, and a wide 5V to 24V DC power input. LILYGO had already made an ESP32 board with CAN Bus and RS485 interfaces called the T-CAN485, but without any isolation. The new T-RSC3 offers both RS232 and RS485 interfaces, but no CAN Bus, protected by isolated transceiver modules that should make it safer to use in industrial environments. LILYGO T-RSC3 board specifications: Wireless module – Espressif Systems ESP32-C3-MINI-1U module with ESP32-C3 RISC-V microcontroller @ 160 MHz with 400 KB SRAM, 2.4 GHz WiFi 4, Bluetooth 5.0 LE & Mesh, 4MB flash, and a u.FL antenna connector Industrial control interfaces RS232 via DB9 connector, RSM232MT5V isolated transceiver with 3000V isolation, 4.75~5.25V input, 5V/50mA output, baud rate from 1200 to 256,000 […]

CHIPSEA CST85F01 480 MHz Cortex-M4 MCU supports dual-band WiFi 6 and Bluetooth 5.0 LE

Dual-band WiFi 6 IoT module

CHIPSEA CST85F01 is an Arm Cortex-M4F microcontroller clocked at up to 480 MHz and designed for IoT applications with dual-band (2.4/5.0 GHz) WiFi 6 with TWT (Target Wake Time) support, Bluetooth 5.0 LE, and a range of I/Os. Following the recent availability of 2.4 GHz WiFi 6 IoT chips such as Espressif Systems ESP32-C6 and Bouffalo Lab BL616, CHIPSEA CST85F01 offers an alternative with dual-band WiFi 6 connectivity while we are waiting for the launch of the ESP32-C5 RISC-V microcontroller. CST85F01 specifications: CPU core – Arm Cortex-M4F CPU with MPU and FPU @ up to 480 MHz Memory – 992 KB SRAM, SDR/DDR PSRAM interfaces Storage – 752 KB ROM, 8 Mbit to 128 Mbit flash WiFi features 2.4GHz/5GHz Wi-Fi 6 Data rates up to 286.8 Mbps (Tx) and 229.4 Mbps (Rx) with 20/40 MHz bandwidth Rx sensitivity – -98dBm in 11b mode, -93.5dBm in MCS0 HT20 mode Tx power […]

$4 Sipeed M0S Dock IoT development board features BL616 WiFi 6, BLE 5.2, and Zigbee RISC-V microcontroller

Sipeed M0S Dock BL616 board

As expected, Sipeed has now launched the Sipeed M0S IoT module based on Bouffalo Lab BL616 RISC-V microcontroller with 2.4 GHz WiFi 6, BLE 5.2, and Zigbee connectivity along with the “Sipeed M0S Dock” development board. The M0S is a tiny module (11×10 mm) with a 320 MHz wireless MCU, a ceramic antenna, and castellated holes for I/Os, and the Sipeed M0S Dock places the module on an easy-to-use board with a USB Type-C port, a BOOT button, and a 12-pin 2.54mm pitch header. Sipeed M0S module specifications: MCU – Bouffalo Lab BL616 32-bit RISC-V (RV32IMAFCP) microcontroller @ up to 320 MHz (384 MHz overclocked) with 480KB SRAM, 4MB flash, 2.4 GHz  WiFi 6, Bluetooth 5.2 dual mode, and 802.15.4 radio (Zigbee) Antenna – Ceramic antenna (red component on module) I/Os – 25 castellated holes with RGB LCD DVP camera USB 2.0 OTG up to 480 Mbps I2C, UART, SPI […]

ESP32-C6 WiFi 6, BLE, and 802.15.4 module and development board launched!

ESP32-C6-DevKitC-1 development board

Espressif Systems has finally launched the ESP32-C6 WiFi 6, Bluetooth 5.0 LE, and 802.15.4 IoT microcontroller by making the ESP32-C6-WROOM-1 module available on Aliexpress for $14.25 for a pack of 5 modules as well as the ESP32-C6-DevKitC-1 development board that’s out of stock on the official store at the time of writing. but somehow listed in another store for $16.22 plus shipping. Besides the availability announcement, another surprise is the 802.15.4 radio for Zigbee and Thread that was not part of the original ESP32-C6 announcement in April 2021. The ESP32-C6-DevKitC-1 development board comes with a module with 8MB flash, exposes most of the I/O’s from the ESP32-C3, and comes with two USB-C ports, two buttons, and an RGB LED. ESP32-C6-DevKitC-1 development board specifications: Wireless module  – ESP32-C6-WROOM-1 with ESP32-C6 single-core 32-bit RISC-V clocked up to 160 MHz 320KB ROM, 512KB SRAM, low-power RISC-V core @ up to 20 MHz Wireless […]

Maker Feather AIoT S3 – An ESP32-S3 board programmable with CircuitPython or Arduino

Maker Feather AIOT S3

Cytron Maker Feather AIoT S3 is an ESP32-S3 board compatible with the Adafruit Feather form factor and suitable for makers and STEM education with features like LEDs for GPIOs, a buzzer, expansion headers and connectors, and support for CircuitPython & Arduino. The WiFi and Bluetooth LE IoT board also supports LiPo and Li-Ion batteries, includes a USB Type-C port for power/charging and programming, and a few buttons. It’s suitable for machine learning thanks to the vector extensions found in the ESP32-S3 microcontroller. Maker Feather AIoT S3 specifications: Wireless module – Espressif ESP32-S3-WROOM-1-N8R8 module with ESP32-S3 dual-core LX7 microprocessor @ up to 240 MHz with Vector extension for machine learning, 8MB FLASH, 8MB PSRAM, WiFi 4 and Bluetooth 5 LE/Mesh USB – 1x USB Type-C port power and programming Expansion 2x GPIO headers compatible with Adafruit Feather form factor and FeatherWing add-on boards 3x Maker Ports compatible with Qwiic, STEMMA QT, […]

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