battery News - Page 3 of 12 - CNX Software

July 15, 2023July 16, 2023 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

Review of SunFounder Raspberry Pi UPS Power Supply

SunFounder’s Raspberry Pi UPS Power Supply is a complete UPS kit for the Raspberry Pi 3/4 Model B/B+ with a PiPower board, a 2,000 mAh battery, and all accessories requires for the assembly. It also works with other Raspberry Pi-sized boards that support 5V DC input such as Banana Pi BPI-M5, Libre Computer ROC-RK3328-CC, and other similar SBCs. Many years ago, I bought a Raspberry Pi battery pack for review hoping that it would also work as a UPS, but it was not perfect as the board would sometime reboot during power failure simulations. Since then, there have been many UPS kits launched to the market, but I didn’t try any so far, so when SunFounder contacted CNX Software to review their “Raspberry Pi UPS Power Supply”, I took the opportunity, and I will report my finding in this review. Raspberry Pi UPS Power Supply key features UPS module output […]

June 30, 2023July 1, 2023 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

ESP32-S3 board features 2.8-inch display, Blackberry-like keyboard, and optional LoRaWAN connectivity

LILYGO T-Deck is a development kit with an ESP32-S3 WiFi and BLE module, a 2.8-inch display with touchscreen support, a Blackberry-like keyboard based on ESP32-S3, and optional LoRaWAN connectivity through an SX1262 LoRa module. It looks ideal for text-based messaging, but the devkit also includes two microphones and a speaker so audio communication must be possible. Other features include a MicroSD card slot, a Grove connector (UART) for expansion, and support for a LiPo battery with USB charging. LILYGO T-Deck specifications: ESP32-S3-WROOM-1 wireless module SoC – ESP32-S3FN16R8 dual-core Tensilica LX7 microcontroller @ up to 240 MHz with 2.4 GHz 802.11n WiFi 4 and Bluetooth 5.0 LE connectivity Memory – 8MB PSRAM Storage – 16MB SPI flash PCB antenna Storage – MicroSD card slot Display – 2.8-inch IPS display with 320×240 resolution; ST7789 SPI display controller Audio – Built-in speaker using MAX98357A amplifier, 2x MEMS microphones Wireless 2.4 GHz 802.11n WiFi […]

June 25, 2023June 25, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

Using Link.ONE all-in-one LPWAN development kit with ChipStark, Node-Red, InfluxDB, and Grafana

RAKwireless has sent us a review sample of the WisTrio Link.ONE all-in-one LPWAN IoT development kit with support for LTE-M, NB-IoT, and LoRaWAN connectivity and programmable with the Arduino IDE. We’ve tested the kit with its weatherproof WisBlock Unify enclosure using LoRaWAN connectivity and open-source software packages and frameworks such as ChipStark, Node-Red, InfluxDB, and Grafana. Key features of the Link.ONE kit The Link.ONE kit we’ve received comes with a WisBlock Unify Enclosure (100 x 75 x 38 mm) and a 3,200 mAh/3.7V rechargeable lithium battery which is sufficient when the system is mostly in sleep mode and used to receive data, while not sending information too often. “Link.ONE with BOX” unboxing The following items were very tightly packed inside the box: WisTrio LTE-M, NB-IoT, and LoRaWAN development board Rechargeable lithium battery External Antenna for cellular USB Type-C cable Circular M8 female cable The enclosure is strong with the lid […]

June 14, 2023June 15, 2023 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

T-Watch S3 ESP32-S3 smartwatch supports WiFi, Bluetooth LE, and LoRa connectivity

LILYGO T-Watch S3 is an ESP32-S3 WiFi and Bluetooth LE smartwatch with LoRa connectivity, and other interesting features such as an RTC, audio support, a vibration motor, and an infrared transmitter to control home appliances. The watch integrates a 1.54-inch color LCD display with capacitive touch, a button to turn on and off the device, and a USB port to charge the included 400 mAh battery. The T-Watch S3 sells in silver or “gun color” with a black wrist strap. T-Watch S3 specifications: Wireless MCU – Espressif Systems ESP32-S3 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 8MB PSRAM, 16MB flash, WiFi 4 and Bluetooth LE wireless connectivity Connectivity 2.4 GHz WiFi 4 (802.11 b/g/n) Bluetooth LE 5.0 Semtech SX1262 LoRa RF transceiver: 433 MHz, 868 MHz, 915 MHz Display – 1.54-inch 16-bit color LCD display with 240×240 resolution, capacitive touch; ST7789V […]

June 12, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

Inkplate 5 – A 5.2-inch wireless e-paper display programmable with Arduino or MicroPython (Crowdfunding)

The team at Soldered Electronics has been designing Inkplate ESP32-based e-paper displays ever since the first 6-inch model was launched in 2019. The latest Inkplate 5 comes with a recycled 5.2-inch E-Ink (e-paper) display with refresh times of only 0.19 seconds, and programmable with the Arduino IDE or MicroPython firmware. The WiFi-connected display offers a 960×540 resolution, or 213 DPI pixel density, integrates an RTC with battery for accurate timekeeping, two buttons for power and wake/user, and I/O expansion via headers and an easyC/Qwicc connector. Inkplate 5 specifications: Wireless module – Dual-core ESP32 processor with Wi-Fi 4 & Bluetooth 4.0 (BLE) connectivity, 8MB flash, 4MB PSRAM External storage – MicroSD card socket Display – 5.2-inch, 960×540 e-paper display with 213 DPI pixel density Refresh times: full refresh in just 1.02s (1-bit and 3-bit) and partial refresh in 0.19s (1-bit) USB – 1x USB Type-C port for programming and power Expansion […]

May 18, 2023May 18, 2023 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

BeepBerry handheld Linux computer drives 2.7-inch display with Raspberry Pi Zero W

Good news! The PocketCHIP handheld Linux computer is back! OK, not quite but that’s what the Raspberry Pi Zero-powered BeepBerry reminds me of with a Blackberry-like keyboard, a small 2.7-inch display, and a 2,000mAh LiPo battery for power. The BeepBerry is another open-source hardware design from SQFMI, who previously did the Watchy ESP32 E-Ink smartwatch, that runs Raspberry Pi OS Lite on the Raspberry Pi Zero/Zero W, and also includes a Raspberry Pi RP2040 to handle the keyboard and peripherals. BeepBerry specifications: SBC – Raspberry Pi Zero board with a Broadcom BCM2835 ARM11 processor @ 700 MHz, VideoCore IV GPU, or Raspberry Pi Zero W with WiFi and Bluetooth Storage – MicroSD card slot Display – Ultra-low power high contrast 2.7-inch Sharp Memory LCD with 400 x 200 resolution User input – QWERTY tactile keyboard w/ backlight and touchpad based on Solder Party BB Q20 Keyboard USB – USB-C programming […]

May 5, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

$60 M5Stack CoreS3 ESP32-S3 IoT controller comes with 2-inch display, VGA camera, multiple sensors

M5Stack CoreS3 is a battery-powered ESP32-S3 IoT controller with WiFi and Bluetooth connectivity, a 2-inch touchscreen display, a 0.3MP camera, a microSD card slot for storage, several sensors, plenty of I/Os, a USB Type-C OTG port, as well as a 9V to 24V DC input port. That’s the second ESP32-S3 IoT controller from M5Stack we’ve seen this year, as the CoreS3 follows the smaller M5Stack AtomS3 with a 0.85-inch display, only a few I/Os, and fewer features overall although it does come with an IR transmitter that’s missing from the larger CoreS3. M5Stack CoreS3 specifications: Wireless MCU – Espressif Systems ESP32-S3FN16R8 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, 16MB flash, 8MB PSRAM Antenna – Internal “3D” antenna Storage – MicroSD card slot Display – 2-inch display with 320×240 resolution via ILI9342C […]

April 12, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

T-Display-S3 AMOLED – An ESP32-S3 board with a 1.9-inch AMOLED Display

There are plenty of ESP32 series boards with display usually TFT or E-Ink, but I don’t think I’ve ever seen one with an AMOLED display and that’s what Lilygo is offering with the “T-Display-S3 AMOLED” board equipped with an ESP32-S3 WiFi and Bluetooth microcontroller and a 1.9-inch AMOLED display. The new board is almost the same as the T-Display-S3 board introduced last year, except for a display with higher resolution, more vibrant colors, and a wider viewing angle, plus a 3D antenna, and a few extra I/Os. T-Display-S3 AMOLED 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. 3D antenna […]