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RISC-V & ESP32 based TTGO Handheld T-WATCH K210 AIoT DevKit Works with a 9V Battery

LilyGO TTGO T-Watch K210 AIOT is a rather thick watch development kit based on Kendryte K210 RISC-V AI Processor and ESP32 WiSoC capable of performing AI workloads such as face detection using a USB power source. We first covered the development kit in June, and the company releases some small variants from time to time with the latest being TTGO Handheld T-Watch K210 with basically the same hardware, plus the addition of a handle that adds a power button, and a compartment for a 9V battery to power the watch/devkit. TTGO Handheld T-Watch K210 specifications: SoC – Kendryte K210 dual-core 64-bit RISC-V processor with 8MB RAM, AI accelerators Storage – 16MB flash, MicroSD card slot Display – 1.54-inch capacitive touch IPS screen connected over an 8080 interface Camera – Adjustable 2MP OV2640 sensor with 65-degree lens (optional 120-degree angle lens),  AS312 “human” infrared sensor Connectivity – 2.4 GHz 802.11b/g/n WiFi […]

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Testing Hercules OTT Realtek RTD1395 4K Android STB Development Board

This is a guest post by Promwad, a software and hardware product development company with DTV & STB development expertise and know-how. Recently, they received a package from Realtek, their partner in Taiwan. There was a Realtek RTD1395 development board inside – Hercules 32-bit OTT – with 2 GB RAM and pre-installed Android 9 OS. Promwad team tested what it’s capable of and how it can be used by hardware and software engineers who design new TV set-top boxes and develop embedded software. Hercules OTT board is an Android IPTV box that plays videos of any formats with a maximum resolution of 4K. Streaming services such as Youtube, Netflix, etc. are supported via Dash and HLS. Also, the board supports other Android apps, including audio/video calls and conferencing. Realtek introduced RTD1395-based boards back in 2018. IP and cable TV operators used them in their subscriber devices. The RTD1395 chip with […]

Khadas Edge2 Arm mini PC
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Sipeed Maix Amigo is a Portable 64-bit RISC-V AI Development Kit with Display and Cameras

Earlier this year, Seeed Studio introduced Wio Terminal a portable Arduino devkit with an LCD display, and expansion connectors and headers. The company is now selling a similar looking devkit but for different applications with Sipeed Maix Amigo portable 64-bit RISC-V development kit powered by Kendryte K210 RISC-V AI processor and equipped with an LCD display, two cameras, a few buttons, and several I/O headers and Grove connectors. Sipeed Maix Amigo specifications: SoC – Kendryte K210 Dual-core 64-bit RISC-V (RV64GC) processor with FPU @ 400 MHz (overclockable to 500MHz), 8MB SRAM, built-in AI accelerators for video and audio Storage – 16MB Flash, MicroSD card slot up Display – 3.5-inch TFT capacitive touch screen display with 480×320 resolution Camera VGA front-facing camera up to 30 fps (GC0328 sensor) VGA rear camera up to 60 fps (OV7740 sensor) Audio – Build-in microphone, optional 6-mic array USB – 1x USB Type-C port for […]

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RAK7431 RS485 Bridge Relays ModBUS Data over the LoRaWAN Network

Last year with covered Dragino RS485-LN RS485 to LoRaWAN converter that extends the range of RS485 wirelessly up to 15+km thanks to LoRaWAN connectivity. Rakwireless has now launched a similar product with RAK7431 Modbus RS485 to LoRaWAN bridge. RAK7431 key features and specifications: MCU- STM32L071 industrial-grade MCU with low-power consumption (4uA sleep) LoRa Semtech SX1272 LoRa transceiver Frequencies – RU864, IN865, EU868, US915, AU915, KR920, AS923 Tx Power – 20dBm (Max) LoRaWAN 1.0.3 protocol stack, supports Class A, Class B & C Polling mode, transparent mode and packet mode RS485 6-pin RS485 terminal block Support up to 16x RS485 devices, with up to 32 instruction sets Baud rate – Configurable 9600 to 115200bps Can power RS485 devices via a dedicated output USB – 1x Micro USB configuration port Misc – Reset key, 3x LEDs Input Voltages – 8-48V DC input via 2-pin terminal block; 5V via Micro USB Dimensions – […]

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ESPurna ESP8266 Automation Firmware Gets Support for BME680 Sensor’s Precise Indoor Air Quality Measurements

Bosch BME680 is a 4-in-1 air quality sensor measuring relative humidity, barometric pressure, ambient temperature, and gas (VOC) levels. It’s found in boards such as STM32 based Metriful Sense or Nordic Thingy:91, and Bosch Sensortec published an Arduino library based on “Bosch Sensortec Environmental Cluster (BSEC) Software” to provide precise calculations temperature, humidity, pressure, and indoor air quality (IAQ). BSEC proprietary algorithms can provide indoor air quality data as good as more expensive CO2 sensors according to a recent presentation by the company. Max Prokhorov, lead ESPurna maintainer, and Rui Marinho noticed none of the popular open-source ESP8266 automation firmware including ESPurna, Tasmota, and Esphome supported BME680 sensor just yet. So they decided to work together to add BME680 sensor support via BSEC library to ESPurna firmware, and now it’s very easy to use as you just need to define BME680_SUPPORT=1 before compiling the firmware. You’ll find the now-merged pull […]

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Linux 5.8 Release – Main Changes, Arm, MIPS, and RISC-V Architectures

Linus Torvalds has just released Linux 5.8: So I considered making an rc8 all the way to the last minute, but decided it’s not just worth waiting another week when there aren’t  any big looming worries around. Because despite the merge window having been very large, there really hasn’t been anything scary going on in the release candidates. Yeah, we had some annoying noise with header file dependencies this week, but that’s not a new annoyance, and it’s also not the kind of subtle bug that keeps me up at night worrying about it. It did reinforce how nice it would be if we had some kind of tooling support to break nasty header file dependencies automatically, but if wishes were horses.. Maybe some day we’ll have some kind of SAT-solver for symbol dependencies that can handle all our different architectures and configurations, but right now it’s just a manual […]

Rockchip RK3568/RK3588 and Intel x86 SBCs
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M.2 and Half-size mPCIe Cards Support Real-Time Ethernet and FieldBus Networks

Hilscher cifX M.2 and half-size mini PCIe cards powered by the company’s NETX 90 network-on-chip multi-protocol Cortex-M4 SoC bring real-time Ethernet and FieldBus to compatible systems. The tiny cards are designed for PC-based devices such as IPC’s, HMI’s and robots, and support various firmware for PROFINET IO-Device, EtherNet/IP Adapter, EtherCAT Slave, or OpenModbus/TCP. The company claims its cifX M.2 (A+E key) and half-size mini PCIe cards are the smallest multiprotocol PC cards on the automation market with a size of 22×30 mm and 30×26.8 mm respectively. The cards also support extended temperature from -20°C to 70°C and offer one hardware platform for all real-time Ethernet slave protocols. Besides PROFINET IO-Device, EtherNet/IP Adapter, EtherCAT Slave, and OpenModbus/TCP, Hilscher will provide support for CC-Link IE Field Basic and Ethernet POWERLINK Slave in new firmware available in Q4 2020, and OPC UA and MQTT functionalities are planned for future releases. The cards are […]

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STM32 IoT Discovery Kit Runs AWS-Ready FreeRTOS, Supports Arduino and Pmod Expansion Boards

STMicroelectronics STM32 IoT Discovery Kit is supposed to ease software development for IoT nodes thanks to a qualified port of FreeRTOS integrated into the STM32Cube ecosystem, and ready to connect to Amazon Web Services (AWS). The hardware is comprised of an STM32L4+ Cortex-M4F microcontroller, various MEMS sensors, a secure element, and offers WiFi, Bluetooth 4.2, and NFC connectivity. STM32 IoT Discovery Kit (B-L4S5I-IOT01A) key features and specifications: MCU – STMicro STM32L4+ (STM32L4S5VIT6) Arm Cortex-M4F microcontroller with 2 MB Flash, 640 KB RAM in LQFP100 package storage – 64 Mbit Quad-SPI Flash Connectivity Bluetooth 4.1 module (STMicro SPBTLE-RF) 802.11 b/g/n compliant Wi-Fi module (Inventek ISM43362-M3G-L44) Dynamic NFC tag based on ST25DV04K with its printed NFC antenna USB – Micro USB OTG port STMicro Sensors 2 digital omnidirectional microphones (MP34DT01) Relative humidity and temperature sensor (HTS221) 3-axis magnetometer (LIS3MDL) 3D accelerometer and 3D gyroscope (LSM6DSL) 260-1260 hPa absolute digital output barometer (LPS22HB) […]

Khadas VIM4 SBC