SparkFun Thing Plus – RA6M5 board supports Bluetooth 5.1 LE through Renesas DA14531MOD module

Sparkfun Thing Plus - RA6M5

SparkFun Thing Plus – RA6M5 is a small MCU board based on a 200 MHz Renesas RA6M5 Cortex-M33 microcontroller and a Renesas DA14531MOD Bluetooth 5.1 LE module that follows Adafruit Feather/Sparkfun Thing Plus form factor. The module can transmit data over BLE with just 4mA (at 3.3V) power consumption and the company claims the board to be powered by a coin-cell battery. A LiPo battery can also be connected to the board through a 2-pin JST battery connector, and the Things Plus – RA6M5 board also features a single-cell charger and LiPo fuel gauge. Sparkfun Thing Plus – RA6M5 specifications: Microcontroller – Renesas R7FA6M5AH3CFP Core – Arm Cortex-M33 microcontroller @ up to 200 MHz Memory – 512KB SRAM Storage – 2MB Flash Security – Arm TrustZone, and Secure Crypto Engine 9 Wireless – Renesas DA14531MOD module for Bluetooth 5.1 LE connectivity with support for CodeLess AT command Datapump Radio Transmit […]

SparkFun Thing Plus – ESP32-C6 board comes with 16MB flash, LiPo battery support

SparkFun Thing Plus ESP32-C6

SparkFun has launched yet another ESP32-C6 board with the “Thing Plus – ESP32-C6”  based on the ESP32-C6-WROOM-1-N16 module with 16MB flash and a PCB antenna and  range of I/Os and power options. The board features 28 through holes with up to 23 multi-function GPIOs and a Qwicc connector for expansion, and supports 5V or LiPo battery power through respectively a USB-C port a 2-pin JST connector combined with a charging chip, and a fuel gauge. SparkFun Thing Plus – ESP32-C6 specifications: Wireless module – ESP32-C6-WROOM-1-N16 MCU – ESP32-C6 32-bit single-core RISC-V microcontroller with 2.4 GHz WiFI 6, Bluetooth 5 LE, and 802.15.4 radio (Zigbee and Thread); Matter-compatible Storage – 16 MB flash PCB Antenna Storage – MicroSD card slot USB – 1x USB Type-C port for power and programming Expansion 12-pin + 16-pin headers with 23x multifunctional GPIOs Up to 7x 12-bit ADC channels Up to 2x UART channels (with […]

8 Euros ESP32-H2-DevKit-LiPo is an open-source hardware Bluetooth 5 LE and 802.15.4 (Zigbee/Thread/Matter) board

ESP32-H2-DevKit-LiPo

Olimex ESP32-H2-DevKit-LiPo is an open-source hardware board based on ESP32-H2-MINI-1-N4 wireless module with Bluetooth 5 Low Energy (LE) and an 802.15.4 radio for Zigbee, Thread, and Matter connectivity, and that can be powered by a LiPo battery. The ESP32-H2 RISC-V microcontroller is coupled with 4MB flash in the wireless module, and the board comes with two rows of 15 pins for up to 19 GPIOs with alternate functions such as ADC, SPI, UART, I2C, etc… plus pUEXT and Qwiic/Stemma connectors for expansion modules. The board also features two USB-C ports, one for connected directly to the ESP32-H2 and the other for USB to UART programming/debugging. ESP32-H2-DevKit-LiPo specifications: Wireless module – ESP32-H2-MINI-1-N4 MCU – Espressif Systems ESP32-H2 32-bit RISC-V microcontroller at up to 96 MHz with 320 KB SRAM, 128 KB ROM, 4 KB LP memory, Bluetooth 5.2 LE/Mesh and 802.15.4 (Zigbee/Thread/Matter) radios. Storage – 4MB flash storage PCB antenna Dimensions […]

Betavolt BV100 3V nuclear battery aims to deliver 100 microwatts for over 50 years

BetaVolt BV100 50-year battery

Btavolt BV100 is a nuclear battery that never needs to be charged and designed to output 3V/100µW (microwatts) for over 50 years for the aerospace industry, AI equipment, medical devices, MEMS systems, advanced sensors, small drones, and micro-robots. At 15x15x5mm, the 50-year nuclear battery is fairly small although 100 microwatts is not a lot of power… That’s only the first step, however, as the Chinese company plans to launch a 1W nuclear battery, and says that if (government) policies allow, nuclear batteries should eventually enable smartphones that never need to be charged and forever fly drones… How does that all work? First, as Betavolt states in its press release (in Chinese), it’s not exactly new technical as in the 1960’s, the US and the USSR used betavoltaic batteries for the space programs. But those were relatively large and heavy, operated at high temperatures, and were expensive. Wikipedia mentions that one […]

M5StickC PLUS2 IoT development kit features ESP32-PICO-V3-02 SiP, larger 200 mAh battery

M5StickC Plus2 IoT development kit

M5Stack M5StickC PLUS2 is a battery-powered ESP32 IoT development kit with a 1.14-inch display, a built-in microphone, a 6-axis gyroscope and accelerometer, a few buttons, a buzzer, a Grove connector and a GPIO header for expansion. It builds upon the M5StickC Plus released in September 2020, but replaced the ESP-PICO-D4 SiP with an ESP32-PICO-V3-02 still based on ESP32 WiSoC but having 8MB SPI flash and 2MB flash and also features a larger 200 mAh battery along with a new CH9102 USB to TTL chip and does without a PMIC. M5StickC PLUS2 key features and specifications: ESP32-PICO-V3-02 SiP – Espressif Systems ESP32-PICO-V3-02 system-in-package with ESP32 dual-core WiFI and Bluetooth IoT processor @ up to 240 MHz, 8MB SPI flash, 2MB PSRAM Display – 1.14-inch Color TFT LCD with 135×240 resolution (ST7789v2 driver) Audio – SPM1423 microphone, buzzer USB – 1x USB-C port for power and programming using CH9102 USB to TTL chip […]

Adafruit Metro ESP32-S3 WiFi and Bluetooth IoT board comes in Arduino UNO form factor

ESP32-S3 Arduino UNO board

Adafruit Metro ESP32-S3 is an IoT development board with ESP32-S3 WiFi and Bluetooth wireless SoC, 8 MB PSRAM, and 16 MB Flash that follows Arduino UNO – or Adafruit Metro – form factor. The board also comes with two STEMMA QT I2C connectors for further expansion, comes with a microSD card socket for storage, a JTAG header for advanced debugging, and supports various power options with 6-12V DC via a DC jack, 5V DC via a USB-C port, and a 2-pin connector for a LiPo battery plus the board integrates charging and battery monitoring chip. Adafruit Metro ESP32-S3 specifications: Wireless module ESP32-S3-WROOM-1 MCU – ESP32-S3 dual-core LX7 microprocessor @ up to 240 MHz with Vector extension for machine learning Memory – 8MB PSRAM Storage – 16MB SPI flash Connectivity – WiFi 4 and Bluetooth 5 with LE/Mesh PCB antenna Certifications – FCC/CE certification Storage – MicroSD card slot USB – 1x […]

T-Display-S3-Long board features ESP32-S3 WiSoC, a wide touchscreen display

T-Display-S3-Long

LILYGO has designed plenty of ESP32 boards with an integrated display, but the new T-Display-S3-Long may be suitable for different applications since the ESP32-S3 board comes with a wide 3.4-inch touchscreen display with 640×180 resolution. The WiFi and Bluetooth wireless display board is powered by an ESP32-S3R8 WiSoC with 8MB PSRAM, and comes with a 16MB SPI flash, two Qwiic connectors and a 30-pin header for expansion, a USB Type-C port for power, charging, and programming, and a 2-pin connector for an optional LiPo battery. T-Display-S3-Long 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 (W25Q128) 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. Bluetooth Mesh 3D antenna […]

MessengerPi – A LoRa messenger and walkie-talkie based on Raspberry Pi RP2040 (Crowdfunding)

MessengerPi Walky Talky

SB Components MessengerPi is a DIY messenger and walkie-talkie based on a Raspberry Pi RP2040 that relies on LoRa communication for P2P messaging over distances of up to 5 kilometers and calls up to 300 meters away. The company actually provides two boards: the MessengerPi itself for both calls and messaging with a keyboard, and the smaller “Walky Talky” board for audio communication only and without a LoRa module. Messenger Pi specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ 133 MHz with 264KB SRAM Storage – MicroSD card slot Wireless Ebyte E22-900T22S LoRa module (also used in the company’s LoRa HAT for Raspberry Pi) Based on the Semtech SX1262 transceiver Operates in the 850 MHz to 930 MHz band Up to 5km LoRa text messaging SB Components marked Walkie-Talkie module 16 FRS channels Tx Power – Up to 17 dBm Rx sensitivity – Up to -98dBm Audio communication […]

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