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ONiO.zero offers a RISC-V Microcontroller that runs without battery

Energy harvesting has been an exciting area people have tried to venture into mostly because of the possible applications that can arise from it. Newly invented energy-harvesting technologies accompanying low-power computing systems have pushed the boundaries of where embedded systems can be deployed. The demand for an increase in connected applications which require an underlying embedded system, and as we know, all electronic devices require a power source of some sort. This power source, batteries in most cases, comes with an accompanying buck regulator of some sort that will tend to increase the BOM. Aside from the BOM rise from the usage of batteries, there is also the shelf life and environmental aspects. The Norwegian specialist ONiO has introduced the ONiO.zero to address those issues. Having no battery means fewer components and a smaller design, which can easily be integrated into a wide range of solutions – be it fabrics, […]

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RAK7244 LoRaWAN Developer Gateway Combines Raspberry Pi 4 with LoRa HAT, Optional 4G LTE Connectivity

After launching RAK831 Lite LoRaWAN gateway based on Raspberry Pi 3 board in 2018, RAK Wireless introduced Pilot Gateway Pro RAK7243 gateway with the more recent Raspberry Pi 3B+ SBC earlier this year. But with the launch of Raspberry Pi 4 last June, the Raspberry Pi 3B+ has become much harder to procure, so RAK has now launched an updated LoRa gateway featuring Raspberry Pi 4 SBC together with the company’s RAK2245 Pi Hat Edition LoRaWAN gateway concentrator module. RAK7244 LoRaWAN Developer Gateway specifications: SBC – Raspberry Pi 4 Model B with 2GB RAM Connectivity LoRa RAK2245 Pi Hat LoRaWAN gateway concentrator module with 1x SX1301 baseband processor, 2x SX125x Tx/Rx front-ends LoRaWAN v1.0.2 support Support for 8 channels and spreading factors SF7 to SF12 Bands – 433MHz, 470MHz, 865MHz, 868MHz, 915MHz, 920MHz, 923MHz Tx Power: 27 dBm Max RX Sensitivity: -139dBm Cellular – Optional 4G LTE support via RAK2013 […]

Khadas Edge2 Arm mini PC
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Raspberry Pi Power Management HAT Adds RTC, Battery Management, Software On/Off

If your Raspberry Pi project runs on battery, but may not need to be turned on 24/7 in order to lower power consumption, you’d have to find a way to schedule on and off times, and power off the board cleanly either when the battery is almost depleted, or your timer requires it There’s no built-in support for this in any of the Raspberry Pi boards, but Waveshare Power Management HAT can help you do just that since it adds an RTC, and enables software-controlled power timers and battery monitoring via an Arduino compatible ATmega328 MCU. Power Management HAT specifications: MCU – Microchip ATmega328P-AU MCU Storage – CAT24C32 EEPROM USB – 1x micro USB port for serial communication via CP2102 UART to TTL chip RPi Interface – 40-pin Raspberry Pi GPIO header Misc NXP PCF8523 RTC & calendar chip + CR1220 battery holder DEBUG switch (9) to either: Power directly […]

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ROCK Pi SATA HAT Targets ROCK Pi 4 & Raspberry Pi 4 NAS

Radxa ROCK Pi 4 is a single board computer (SBC) powered by Rockchip RK3399 hexa-core processor and inspired by Raspberry Pi 3 Model B+. The company has now designed ROCK Pi SATA HAT expansion board to design 4-bay NAS based on Raspberry Pi 4 and ROCK Pi 4. There are 3 models with support for 2, 4 or 5 drives: Dual/Quad SATA HAT connected over two USB 3.0 ports and working with both boards Penta SATA HAT connected over PCIe and compatible with ROCK Pi 4 only ROCK Pi Dual/Quad SATA HAT Specifications: 2x or 4x SATA connectors supporting 2.5″ or/and 3.5″ HDD/SSD 2x USB 3.0 port to connect to RPi 4 via one or two JMS561  USB to SATA controllers Storage Features – HDD suspend mode, UASP, software RAID 0/1/5 Misc Fan and heatsink header for Raspberry Pi 4 CPU cooling Optional PWM control fan for HDD heat dispatching […]

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PrinCube Said to Be Smallest Handheld Smartphone Color-Inkjet Printer That Prints on Anything (Crowdfunding)

PrinCube the smallest, color-inkjet printer on the market. PrinCube is a portable handheld color ink-jet printer that is palm-sized, wirelessly controlled by a smartphone, and easy to set up. The IndieGoGo campaign has exploded to more than $2,000,000.00 USD and featured on a number of tech sites.  Article Intent For clarity and function of the PrinCube abilities, there needs to be a careful examination of the facts that surround wireless, handheld, color inkjet, printer, that can print on any surface. Other Handheld, Smartphone, Color-Inkjet Printers There is another product, similar to PrinCube, PrintBrush, which is also a handheld wireless color inkjet printer, connected to a smartphone. It should be noted that while PrinCube is a very popular campaign, PrintBrush, which came out earlier than PrinCube, has very similar claims.  It is worth looking over the websites for both printers Here are the campaigns PrintBrush XDR- Colors Everywhere on Kickstarter PrinCube […]

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Sovol SV01 Review – A 3D Printer that Prints like a Boss

Howdy, Karl here. Let’s do this backward today and give final thoughts first …I like the SV01 3D printer. With a print volume of 280x240x300mm, it’s a good size printer. I think I could get several more centimeters in height if I relocated the filament sensor. I have had it for several months and have printed with it quite a bit and had a really good experience. It is a keeper. By that I mean I have reviewed quite a few printers and I don’t have enough space to keep them all. I find the less desirable ones good homes with friends and family. BTW I plan on doing a follow up soon for all the past articles. Just a few highlights per past article. I think it would be interesting. It is hard to truly review some products in a short amount of time. Back to the SV01…IMO, likes […]

Rockchip RK3568/RK3588 and Intel x86 SBCs
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HealthyPi v4 Wearable WiFi Vital Signs Monitor Follows Raspberry Pi HAT Form Factor

HealthyPi v4 Campaign Starts ProtoCentral has started a Crowd Supply campaign for the HealthyPi v4, its latest vital signs monitoring dev kit. The HealthyPi v4 is wearable, wireless, and can be mounted on a Raspberry Pi. The units are all open source and stand-alone made for end-users, students as well as researchers and developers.  An Improvement on HealthyPi v3 The recent increase in health-related tech has fueled ProtoCentral’s desire to bring its HealthyPi v3 up to current usability and development standards. The retail versions of the HealthyPi v4 are made specifically to work in conjunction with the Android OS for ease of use and mobility.  Also, the Raspberry Pi HAT form factor is also supported in this version of the device. Articles On Health-Related Development The articles that have touched on health-related issues and topics from our archives, as well as very recently include HEGduino a neurofeedback monitor and […]

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Android 10 Released – What’s New?

Google released the first Android Q preview in March, and after several more preview, the company has finally released the latest version of the popular operating system which will simply be called Android 10, since Google dropped dessert names which previously led to confusion. What’s new in Android 10? Here’s a list of the new features that you can expect from Android 10: Privacy protection improvements – There’s more granular control over what apps can or cannot do in Android 10. Security improvements – Support for TLS 1.3 (up to 40% faster than TLS 1.2), and passive authentication methods such as face recognition Support for foldables and innovative new screens Sharing shortcuts – Let users jump directly into another app to share content. Settings Panels –  Floating UI invoked from an app to show system settings that users might need to adjust. Smart Reply in notifications – Contextual actions in […]

Khadas VIM4 SBC