low power

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Qualcomm 212S and 9205S Satellite IoT modems target remote monitoring and asset tracking

Qualcomm 212S and 9205S Satellite IoT modems target remote monitoring and asset tracking

Qualcomm 212S block diagram

Qualcomm has just unveiled the Qualcomm 212S and Qualcomm 9205S Satellite IoT modems developed in collaboration with Skylo, an NTN service provider, to enable IoT devices connectivity across satellite and cellular networks for remote monitoring and asset tracking. At the beginning of the year, Qualcomm launched Snapdragon Satellite for two-way messaging on smartphones, but the company has now expanded its use of satellite data connectivity with the Qualcomm 212S and 9205S modems optimized for 5G IoT use cases relying on NTN (Non-Terrestrial Networks). Qualcomm 212S Satellite IoT modem Qualcomm 212S (QCX212S) modem specifications: CPU – Arm Cortex-M3 CPU @ up to 204 MHz Cellular connectivity Cellular Technology – Rel.14 LTE Cat-NB2, Rel.17 NB-IoT over NTN RF LTE low bands – B85, B5, B8, B18, B19, B12, B13, B17, B14, B28, B26, B20 LTE mid bands – B70, B25, B66, B4, B3, B2, B1, B23, N255, N256 Network Protocols – SSL, […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on NOVELDA’s latest UWB radar presence sensor consumes less than 100 µW

NOVELDA’s latest UWB radar presence sensor consumes less than 100 µW

NOVELDA UWB presence sensor

NOVELDA has unveiled a new low-power ultra-wideband (UWB) radar presence sensor with a power consumption of under 100 µW and designed to operate on two AAA batteries for up to four years. We first wrote about NOVELDA in 2021 where we covered their UWB X4 presence sensor capable of detecting submillimeter movements with a power consumption of under 2mW. The company has further optimized the technology and has come up with a 30x5mm module capable of doing the same with 0.1mW power consumption. The sensor is said to work behind various materials such as plastics, tempered glass, and ceramics, the detection zone size and shape can be adjusted to meet the application requirements, and the device provides accurate angle and distance information. The new ultra-low power UWB radar presence sensor will mostly be useful for energy/resource savings, lengthening a product’s life cycle, and health monitoring with some of the potential […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 8 Comments on T-Watch S3 ESP32-S3 smartwatch supports WiFi, Bluetooth LE, and LoRa connectivity

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

T-Watch S3

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Inkplate 5 – A 5.2-inch wireless e-paper display programmable with Arduino or MicroPython (Crowdfunding)

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

Inkplate 5

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on Silicon Labs FG28 Sub-GHz wireless and 2.4 GHz BLE SoC supports Amazon Sidewalk, Wi-SUN, etc…

Silicon Labs FG28 Sub-GHz wireless and 2.4 GHz BLE SoC supports Amazon Sidewalk, Wi-SUN, etc…

Silicon Labs FG28 block diagram

Silicon Labs dual-band FG28 Cortex-M33 SoC comes with sub-Gigahertz and 2.4 GHz Bluetooth LE radios that support long-range networks and protocols like Amazon Sidewalk, Wi-SUN, and other proprietary protocols, as well as a built-in AI/ML accelerator for machine learning inference and SiLabs Secure Vault technology. The chip looks to be an update to the sub-GHz FG25 Cortex-M33 microcontroller with an additional 2.4 GHz BLE radio, but somehow less program memory (up to 256KB) and storage (up to 1024 KB). The peripherals implemented in the chip are almost the same, as the microcontroller gains support for predictive maintenance with a small matrix vector processor for AI/ML acceleration. Silicon Labs FG28 (EFR32FG28) specifications: MCU core – Arm Cortex-M33 @ 78 MHz with DSP instructions and FPU On-chip memory – Up to 256 kB RAM data memory On-chip storage – Up to 1024 kB flash program memory AI accelerator – Matrix Vector Processor […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on AMD Ryzen and Athlon 7020-C processors to power Chromebooks with up to 19.5 hours of battery life

AMD Ryzen and Athlon 7020-C processors to power Chromebooks with up to 19.5 hours of battery life

Dell Latitude Chromebook 3445 with Ryzen or Athlon 7020-C processor

AMD has just unveiled the Ryzen and Athlon 7020-C series processor family designed for Chromebooks, with up to four “Zen 2” cores clocked at up to 4.3 GHz, AMD RDNA 2 graphics, and promises of high power efficiency with Chromebook based on the entry-level Athlon Silver 7120C processor lasting up to an estimated 19.5 hours on a charge. AMD says the Ryzen 3 7320C processor in the Dell Latitude Chromebook 3445 delivers 1.6 times higher average performance than a Chromebook based on the previous generation Ryzen 3 3250C processor and provides a 15% performance advantage with up to 3.5 hours longer battery life compared to the HP Chromebook MT7921 powered by an Intel Core i3-N305 “Alder Lake-N” processor. Four models are available at launch: Ryzen 5 7520C, Ryzen 3 7320C, Athlon Gold 7220C, and Athlon Silver 7120C. All are 15W TDP parts, manufactured with a 6nm process, and come with […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on BeepBerry handheld Linux computer drives 2.7-inch display with Raspberry Pi Zero W

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

BeepBerry

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Energous 2W PowerBridge transmitter doubles wireless power for IoT devices

Energous 2W PowerBridge transmitter doubles wireless power for IoT devices

Energous 2W PowerBridge wireless power transmitter

Energous has launched the 2W PowerBridge transmitter that doubles the energizing capability of Energous’ 1W transmitter found in WattUp 1W active energy harvesting developer kit, the “Wirelessly powered sensor evaluation kit“, and various deployments in the field. Energous wireless transmitters are used in IoT applications across the supply chain, logistics, retail, industrial and agricultural industries, which benefit from lower maintenance and wiring costs, and the new 2W transmitter will provide better RF coverage and power levels. Energous further explains its 2W PowerBridge helps reduce the need for replaceable batteries and charging cables since it can power IoT devices at a distance in industrial, commercial, and residential settings leading to a reduced need for maintenance or human intervention, enabling a more automated workflow, and the deployment of “Active Energy Wireless Power Networks”. So while there will also be wasted energy with at-a-distance wireless power, it could still make financial sense for […]

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