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April 16, 2021

TinyS2 ESP32-S2 board is designed for battery operation

Unexpected Maker has launched a follow-up to the ESP32 based TinyPICO board with TinyS2 board equipped with an ESP32-S2 WiFi processor featuring 4MB flash and 2MP embedded PSRAM. The new board is still designed with a LiPo battery charging circuit, comes with an onboard RGB LED, and while it is compatible with TinyPICO form factor, it has become a little longer with a 41 x 17.8mm footprint to accommodate for extra I/Os. TinyS2 specifications: WiSoC – Espressif Systems ESP32-S2FN4R2 single-core processor @ 240 MHz with 4MP SPI flash, 2MP PSRAM Connectivity – 2.4 GHz 802.11b/g/n WiFi 4 plus 3D antenna USB – 1x USB Type-C port for power and programming Expansion – 12 + 11-pin headers for up to 17x GPIOs, SPI, I2C, UART, ADC, DAC, 5V, 3.3V and BAT signals Misc – Boot and Reset buttons, battery charging status LED, power LED, user-programmable RGB LED that can be shut […]

March 23, 2021March 23, 2021

Made in Thailand CorgiDude RISC-V AI board aims to teach machine learning

There’s a relatively small but active maker community in Thailand, and we’ve covered or even reviewed some made in Thailand boards including ESP8266 and ESP32 boards, a 3G Raspberry Pi HAT, and KidBright education platform among others. MakerAsia has developed CorgiDude, a board based on the version of Sipeed M1 RISC-V AI module with built-in WiFi, and part as a kit with a camera and a display used to teach machine learning and artificial intelligence with MicroPython or C/C++ programming. CorgiDude board specifications: AI Wireless Module – Sipeed M1W Module with Kendryte K210 dual-core 64-bit RISC-V RV64IMAFDC CPU @ 400Mhz with FPU, various AI accelerators (KPU, FFT accelerator…), 8MiB on-chip SRAM Espressif ESP8285 single-core 2.4 GHz WiFi 4 SoC plus IPEX antenna connector Storage – MicroSD card slot Camera I/F for 2MP OV2640 sensor up to 1280 × 1024 (SXGA) @ 30 fosm SVGA @ 30 fps, or CIF @ […]

ADLINK launches SMARC Short Size Module, Devkit with NXP i.MX 8M Plus

We had seen many i.MX 8M Plus modules with built-in AI accelerator announced at Embedded World 2021, including two SMARC modules from Congatec and iWave Systems. ADLINK has added another of i.MX 8M Plus module compliant with SMARC 2.1 “short” standard with LEC-IMX8MP system-on-module equipped with up to 8GB RAM, 128 GB eMMC flash, as well as a development kit called I-Pi SMARC IMX8M Plus prototyping platform. LEC-IMX8MP module specifications Specifications: SoC – NXP i.MX8M Plus with quad-core ARM Cortex-A53 processor, Vivante GC380 2D GPU and GC7000UL 3D GPU, 1080p60 video decoder & encoder, optional 2.3 TOPS Neural Processing Unit (NPU) System Memory – 2/4/8GB LPDDR4L-4266 Storage – 16, 32, 64, or 128GB eMMC flash (build option) Wireless – Optional 802.11 ac/a/b/g/n WiFi 5 2X2 MIMO and Bluetooth 5.0 module 314-pin MXM 3.0 edge connector Storage – 1x SDIO (4-bit) compatible with SD/SDIO standard, up to version 3.0 Display – […]

February 1, 2021February 2, 2021

FOSDEM 2021 Online February 6-7 – Hardware, Embedded & IoT talks

FOSDEM is an open-source developer event that takes place on the first week-end of February every year in Brussels, Belgium. Every year except this year, as due to COVID-19 restrictions, FOSDEM 2021 will take place online like most events these days. The schedule has been up for some time, and today I’ll look at some of the interesting talks mostly from the Embedded, Mobile and Automotive “virtual devroom” but also other tracks. Saturday, February 6, 2021 13:00 – 14:00 – From Reset Vector to Kernel – Navigating the ARM Matryoshka Long gone are the times of executing the OS in-place from memory-mapped flash upon reset. A modern SoC now comes with complex mask ROM firmware, with driver, filesystem, protocol and crypto support for loading… yet another bootloader. In his talk, Ahmad follows this chain of bootloaders until the kernel is started, stopping along the way for RAM setup, peripherial initialization, […]

December 15, 2020December 15, 2020

Linux 5.10 LTS release – Main changes, Arm, MIPS and RISC-V architectures

Linus Torvalds has just released Linux 5.10: Ok, here it is – 5.10 is tagged and pushed out. I pretty much always wish that the last week was even calmer than it was, and that’s true here too. There’s a fair amount of fixes in here, including a few last-minute reverts for things that didn’t get fixed, but nothing makes me go “we need another week”. Things look fairly normal. It’s mostly drivers – as it should be – with a smattering of fixes all over: networking, architectures, filesystems, tooling.. The shortlog is appended, and scanning it gives a good idea of what kind of things are there. Nothing that looks scary: most of the patches are very small, and the biggest one is fixing pin mapping definitions for a pincontrol driver. This also obviously means that the merge window for 5.11 will start tomorrow. I already have a couple […]

LilyGO WiFI Bluetooth soil-sensor kit battery case

November 10, 2020

TTGO T-Higrow is a WiFi & Bluetooth connected soil temperature & moisture sensor

LilyGO has made plenty of ESP32 “TTGO” boards with various features be it PoE, battery support, OLED display, cellular connectivity, and even a devkit in watch form factor. The latest product from the company specifically targets smart farming/gardening as TTGO T-Higrow embeds either DHT11 temperature and humidity sensor or BME280 temperature, humidity, and barometric sensor to report soil temperature and moisture over Bluetooth or WiFi. It can also come as a kit with a battery and a 3D printed enclosure. TTGO T-Higrow board specifications: SoC – Espressif Systems ESP32 dual-core LX6 processor @ up to 240 MHz with 520 LB SRAM, Wi-Fi & Bluetooth Storage – 4MB QSPI flash Wireless 2.4 GHz 802.11b/g/n WiFi 4 up to 150 Mbps Bluetooth 4.2 BR/EDR and BLE Sensors Option 1 – DHT11 temperature and humidity sensor Option 2 – BME280 temperature, humidity, and barometric sensor Expansion – 2x 12-pin through holes with UART, […]

October 30, 2020November 3, 2020

PolarBerry is a Compact, Linux-capable RISC-V FPGA SBC and module (Crowdfunding)

SiFive may just have announced a mini-ITX motherboard for RISC-V PCs, but if you’d like a RISC-V Linux platform in a more compact form factor, Sundance PolarBerry may better fit your requirements, albeit the board will target different use cases. Powered by Microchip PolarFire RISC-V SoC FPGA, PolarBerry is both a single board computer with Gigabit Ethernet and 40-pin GPIO header, as well as a system-on-module thanks to three Samtec board-to-board connectors. PolarBerry specifications: SoC – Microsemi PolarFire FPGA MPFS250T-FCVG484 penta-core processor with 1x RV64IMAC monitor core, 4x RV64GC application cores, FPGA fabric with 254K x logic elements (4LUT + DFF), 784 x math blocks (18 x 18 MACC), and 16 x SERDES lanes at 12.5 Gbps; 12 W maximum power consumption System Memory – 4 GB of 32-bit wide DDR4 memory Storage – 4GB eMMC flash, 128 Mbit SPI Serial NOR flash for boot image Networking – Gigabit Ethernet […]

September 22, 2020September 22, 2020

TechNexion Unveils EDM and AXON SoM’s Powered by NXP i.MX8M Plus SoC

A few days ago we wrote about Variscite’s NXP i.MX 8M Plus-powered AI systems-on-modules and devkits, and now it’s TechNexion’s turn to introduce its own SoM’s for artificial intelligence applications. Just like variscite, the company has two variants with EDM-G-IMX8M-PLUS following the EDM standard with a 260-pin edge connector, and AXON-E-IMX8M-PLUS part of the AXON family with board-to-board connectors better suited to vibration-prone applications. Besides the form factor and different default storage capacities, both SoM’s share the same specifications: SoC – NXP i.MX8M Plus quad-core Cortex-A53 processor @ up to 1.8 GHz with Cortex-M7 real-time core @ 400 MHz, Vivante GC520L 2D GPU, Vivante GC7000UL 3D GPU, 1080p60 hardware decoder (HEVC, H.264, VP9, and VP8) and encode (H.265/H.264), and 2.3 TOPS NPU System Memory – Up to 8 GB LPDDR4 Storage AXON-E-IMX8M-PLUS – 32 GB eMMC flash by default EDM-G-IMX8M-PLUS – 16 GB eMMC flash by default Networking Chips Qualcomm […]