Rockchip RK3399K Processor Clocks Up to 2.0 GHz, Supports Wider Temperature Range

Rockchip RK3399K SoC

First unveiled in 2016, Rockchip RK3399 hexa-core processor is still widely used in development boards, Android mini PCs and Chromebooks. But today, I’ve come across another variant. Rockchip RK3399K has exactly the same features but either supports higher clock CPU clocks (Cortex-A72 @ 2.0 GHz, Cortex-A53 @ 1.6 GHz), or wider temperature range between -20°C and 85°C with lower clock speeds for the CPU (A72: 1.8 GHz, A53: 1.4 GHz) and the GPU (600 MHz) I think I’ve read stories about Rockchip RK3399 being clocked at 2.0 GHz with proper cooling, but it may not be reliable on all boards. RK3399K should fix that. Rockchip actually updated its datasheet on the 29th of May, but I only found out about it today. Everything else looks the same, and you’ll be able to find out whether your device uses RK3399 or RK3399K by looking at the marking on the chip. That’s all info there’s in the datasheet about RK3399K. A web …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

HK1 MAX PLUS TV Box Features Upgraded Rockchip RK3368PRO SoC with USB 3.0, HDR Support

Rockchip RK3368Pro TV Box

Rockchip RK3368 octa-core Cortex-A53 processor @ 1.2 GHz was introduced in 2015 mostly in TV boxes running Android 5.1 such as Beelink i68 or Tronsmart Orion R68. Unsurprisingly we don’t read much about new Rockchip RK3368 products four years later. But Rockchip appears to have launched a RK3368 “refresh” with RK3368PRO processor equipped with most of the same features, plus the addition of a USB 3.0 interface, and HDR support. The company also updated software support to Android 9.0 Pie. We don’t actually have much information about the processor as we learned about it via a listing on Aliexpress for HK1 MAX PLUS TV box with the following (preliminary) specifications: SoC – Rockchip RK3368PRO Octa-Core Arm Cortex-A53 @ 1.5 GHz with Imagination PowerVR G6110 GPU System Memory – 4 GB DDR3 Storage – 32GB, 64GB, or 128GB flash; MicroSD card slot Video Output – HDMI 2.0a up to 4K @ 60 Hz with HDR support (HDR10 and HLG modes) Video …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

Khadas VIM3L (Amlogic S905D3) Benchmarks, Settings & System Info

Khadas VIM3L Heatsink

Khadas VIM3L is the first Amlogic S905D3 SBC on the market and is sold as a lower-cost alternative to the company’s VIM3 board with a focus on the HTPC / media player market. Shenzhen Wesion was kind enough to send me a sample for review, and I’ll start by checking out benchmarks and system information in Android 9.0 Pie operating system. I also plan to perform a more detailed review with Android 9.0 and CoreELEC with a focus on media playback. I received the bare board only, and the first thing I did was to install it the heatsink I received for VIM3 and in turn, install it in the acrylic case. The company told me the heatsink is not really necessary “for normal purpose using like watch TV”, but it should be installed for performance tests and heavy workloads. I’d still recommend purchasing the heatsink to make sure it works well during the summer months as well. Upgrading Android …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

Semtech SX1302 LoRa Transceiver to Deliver Cheaper, More Efficient Gateways

SX1302 Raspberry Pi Gateway

After our interview with Rak Wireless CEO, we received a comment inquiring about the availability of SX1302 gateways. Semtech so far had two LoRa transceivers for gateways namely SX1301 and SX1308, but I had never heard about a third one. Semtech SX1302 is brand new, the latest generation of baseband LoRa chip for gateways that is said to reduce current consumption in order to simplify the thermal design of gateways, as well as the BoM (bill of materials) costs), while being capable of handling a higher amount of traffic. Semtech SX1302 LoRa Transceiver Key features: Up to -141 dBm sensitivity with SX1250 Tx/Rx front-end 125 kHz LoRa reception with: 8 x 8 channels LoRa packet detectors 8 x SF5-SF12 LoRa demodulators 8 x SF5-SF10 LoRa demodulators 125 /250 / 500 kHz LoRa demodulator (G)FSK demodulator Direct interface to Semtech transceivers SX1255, SX1257 and SX1250 SPI host interface Single 32 MHz clock QFN68 Package Temperature Range – -40°C to +85°C. One …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

Dragino LHT65 is a $30 LoRaWAN Temperature & Humidity Sensor

LHT65 LoRaWAN Temperature & Humidity Sensor

If you’d like to monitor temperature and/or humidity in remote locations, one way is to get a LoRaWAN gateway, and setup a few LoRaWAN nodes connected to your own temperature & humidity sensors, and add a battery and enclosure. But if you’d like to save some time, and get a turnkey solution, Dragino LHT65 LoRaWAN temperature & humidity sensor may be an option. The sensor comes with an internal SHT20 sensor, and as well as an external DS18B20 waterproof temperature sensor. Features & specifications: LoRa Connectivity Frequency Bands  – CN470, EU433, KR920, US915, EU868, AS923, AU915 LoRaWAN Class A protocol Sensors Sensirion SHT20 (internal) Temperature – Range: -40 ~ 125 °C; 0.1°C resoultion; +/-0.3°C accuracy; long term drift < 0.02 °C/yr Relative Humidity – Range: 0 to 100%; resolution: 0.04%; accuracy +/-0.3%; DS18B20 (external) – Range: -55 °C~ 125 °C; resolution: 0.0625 °C; +/-0.5°C accuracy from -10°C to +85°C; +/-2°C accuracy  outside this range Data Storage – Up to 3200 …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

$5 Tang Nano FPGA Board Features GOWIN GW1N “LittleBee” FPGA

Last year, we wrote about Lichee Tang FPGA board powered by Anlogic EG4S20 FPGA and targeting RISC-V development for just under $15. The company, now called Sipeed, has made an even cheaper FPGA board with Tang Nano equipped with GOWIN Semi GW1N FPGA part of the company’s LittleBee family. Sipeed Tang Nano Sipeed Tang Nano specifications: FPGA – Gowin GW1N-1-LV FPGA with 1,152 LUT4, 864 Flip-Flops(FF), 72Kbit Block SRAM, 4x B-SRAM, 96Kbit user flash, 1x PLL, 4x I/O banks System Memory – 64Mbit (8MB) 3.3V PSRAM Display – Standard 40-pin RGB LCD interface with on-board screen backlight driver circuit (default normally open, EN pin can be connected to FPGA) USB – USB Type-C port for download and power supply Expansion – 34 I/O ports and power pins on headers (unpopulated), breadboard-compatible Misc – RGB LED, 2x user buttons, 24MHz crystal oscillator Power Supply – 5V via USB-C port (at least 400 mA) Dimensions –  58.4 x 21.3 x 4.8 mm …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

Intel Denverton based Fanless Network Appliance Comes with 6x Ethernet Ports, 2x SFP Cages

PL-82000 Denverton Fanless Network Appliance

Intel Atom C3000 “Denverton” processors were introduced in 2016 for low power servers and network appliances with four to sixteen cores, and in the following years, many products based on the SoC were launched including GIGABYTE MA10-ST0 server motherboard, AAEON FWS-2360 desktop network appliance, and Supermicro A2SDi-2C-HLN4F Mini-ITX motherboard among others. New Denverton platforms did not get much coverage on CNX Software in the last couple of years, and an article on LinuxGizmos reminded me those still existed, as US-based WIN Enterprises recently launched LP-82000 fanless network appliance powered by Intel Denverton C3338, C3558, or C3758 processor and featuring six Gigabit Ethernet ports, as well as two SFP cages. LP-82000 specifications: SoC (one or the other) Intel Denverton C3338 dual-core processor @ 1.50 GHz / 2.20 GHz (Turbo); 4 MB cache; TDP: 8.5 W Intel Denverton C3558 quad-core processor @ 2.20 GHz; 8 MB cache; TDP: 16 W Intel Denverton C3758 octa-core processor @ 2.20 GHz; 8 MB cache; TDP: …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

LPWAN Market Update – An Interview with RAK Wireless CEO

Ken Yu, RAK Wireless CEO

CNX Software interviews Ken Yu, RAK Wireless’  founder & CEO, to learn  more about the company and the current & future state of the LPWAN (Low Power WAN) market especially with regards to NB-IoT and LoRaWAN. CNXSoft: We’ve already covered several products from RAK Wireless on CNX Software, starting with WiFi IoT boards several years ago, and more recently LPWAN products based on NB-IoT or LoRa. But for readers who may not be familiar with RAK Wireless yet, could you provide a short description of what the company does? Ken Yu: RAKwireless was founded in 2014. The core founder team consists of professionals coming from established leaders in the Networking industry as Qualcomm, H3C, etc. Because our engineers have more than 10 years of experience designing Wi-Fi solutions, this was the core of our business in the beginning. RAKwireless is working towards a vision of a connected world and In building low-power, wide-area networks for the Internet of Things, we …

Support CNX Software – Donate via PayPal or become a Patron on Patreon