$6 WT32-ETH01 is a Tiny ESP32 board with Ethernet

WT32-ETH01 ESP32 Ethernet board

Espressif Systems ESP32 processor supports WiFi, Bluetooth, and Ethernet connectivity. There are only a few boards coming with an Ethernet RJ45 jack out of the box including esp32MX-E ESP32 board, TTGO T-Internet-POE, and Olimex ESP32-Gateway board among others. Those boards are fine, but they sell for $16 and up, so if you’d like a cheaper and tinier ESP32 board with Ethernet, Wireless Tag WT32-ETH01 may be an option for projects not requiring PoE support. WT32-ETH01 board specifications: Wireless Module – Wireless Tag WT32-S1 based on ESP32 dual-core WiSoC with 4MB flash, on-board antenna Connectivity 10/100M Ethernet via LAN8720A transceiver 2.4 GHz 802.11b/g/n WiFi 4 up to 150 Mbps Bluetooth 4.2 BR/EDR and LE Expansion – 2x 13 through holes and castellated holes with GPIOs, I2C, SPI,  2x UART, EN, LINK, 5V, 3.3V, and GND signals Power Supply – 3.3V or 5.5V via headers, minimum 500 mA; typical operating current: 80 […]

Penguino Feather 4260 LoRa development board features RAK4260 module

Penguino Feather 4260

Adafruit Feather form factor has become more popular in recent years with third-parties introducing Feather compatible boards such as the Giant Board (Linux capable), OrangeCrab (FPGA), or FeatherS2 (ESP32 WiFi + Bluetooth), and as well as FeatherWing add-on boards. Azerbaijan based MakerTronika Labs has launched their own Feather compatible board with LoRa connectivity: Penguino Feather 4260. The development board is powered by a RAK4260 module based on SAMR34 LoRa SiP and supports both 868 and 915 MHz bands. Penguino Feather 4260 specifications: LoRa module – Rak wireless RAK4260 module with: SiP – Microchip ATSAMR34J18 SiP with SAML21 Arm Cortex M0+ MCU @ 48 MHz, 40 KB RAM, 256 KB Flash, Semtech SX1276 LoRa Connectivity Frequency Range – 862 to 1020 MHz High level of accuracy and stability (32MHz TXCO) Max Tx Power: 20dBm; Max Sensitivity: -148dBm; Rx Current: 17mA (typical) Compliant with LoRaWan 1.0.2 Power Consumption Low RX current of […]

Telink TLSR9 Wireless Audio & IoT RISC-V SoC integrates RISC-V DSP/SIMD P-extension

Telink TLSR9 Development Board

At the end of last month, there was a lot of buzz about Bouffalo BL602, one of the first RISC-V SoC with built-in wireless connectivity, namely WiFi 4 and Bluetooth 5.0 LE. We should expect more and more of those types of solutions, and Telink & Andes jointly introduced TLSR9-series of wireless audio chips for hearables, wearables, and other high-performance IoT applications. The chips are powered by an Andes D25F RISC-V 5-stage core that happens to be the first core to integrate RISC-V DSP/SIMD P-extension and offer Bluetooth 5.2, Zigbee 3.0, HomeKit, 6LoWPAN, Thread, and/or 2.4 GHz proprietary protocol. The press release focuses on the Andes core, but an article in Chinese allows use to find more about Telink TLSR9 family’s key features: CPU – Andes D25F 32-bit RISC-V 5-stage core @ up to 96 MHz (2.59 DMIPS/MHz and 3.54 CoreMark/MHz) with RISC-V DSP/SIMD P-extension Optional NNU – AI engine […]

Orange Pi Zero2 Allwinner H616 SBC runs Android 10 or Linux

Allwinner H616 SBC

Last year, Shenzhen Xunlong Software unveiled Orange Pi Zero2 SBC as an update to the popular Orange Pi Zero board with a faster Allwinner H6 processor, HDMI 2.0 video output, USB 3.0 port, Gigabit Ethernet, and WiFi. Just one little problem: AFAIK they never sold it. But Orange Pi Zero2 board is now back with another design features instead equipped with a newer Allwinner H616 processor supporting Android 10, and various Linux distributions such as Ubuntu and Debian. Orange Pi Zero2 (2020) specifications: SoC – Allwinner H616 quad-core Arm Cortex-A53 processor @ up to 1.5 GHz with Arm Mali G31 MP2 GPU with support for OpenGL ES 3.2 and OpenCL 2.0 Memory – 512MB or 1GB DDR3 Storage – 2MB SPI flash and MicroSD card slot Video Output Micro HDMI 2.0a port up to 4Kp60 Video composite (CVBS) via 13-pin header (See Expansion section) Video Decoding 10-bit H265/HEVC up tp […]

SiFive launches HiFive Unmatched mini-ITX motherboard for RISC-V PC’s

When it comes to RISC-V based SoC, SiFive has always set a benchmark in the RISC-V ecosystem. On 29th October 2020, SiFive confirmed the first-ever RISC-V PC. After an increased demand for AI-focused RISC-V microarchitecture, targeting all applications from artificial intelligence, the internet of things, high-performance computing, and now even desktop PCs. SiFive Freedom U740 powered HiFive Unmatched mini-ITX motherboard comes with a complete development environment which allows developers to create RISC-V based applications from bare-metal to Linux-based systems. “HiFive Unmatched ushers in a new era of RISC-V Linux development with a platform in a PC form factor. Powered by the SiFive Freedom U740, a high-performance multi-core, 64-bit dual-issue, superscalar RISC-V processor.”, SiFive says. It is the world’s fastest native RISC-V development platform. SiFive HiFive Unmatched Board At the heart of the SiFive board is a SiFive FU740 processor coupled with 8 GB DDR4 memory and 32 MB SPI Flash. It […]

NuMaker-IoT-M263A board is the Swiss army knife of IoT development

NuMaker-IoT-M263A

If you’d like an MCU board to experiment with various wireless (and wired) protocols used for Internet of Things applications, the Nuvoton NuMaker-IoT-M263A development board may be worth a look. Powered by a NuMicro M263KIAAE Arm Cortex-M23 CPU microcontroller, the board offers WiFi, Bluetooth, and LoRa connectivity, plus an mPCIe socket for 3G, 4G, or NB-IoT cellular connectivity. It also comes with various sensors, as well as CAN and RS485 transceivers for industrial control applications. NuMaker-IoT-M263A key features and specifications: MCU – Novoton NuMicro M263KIAAE Arm Cortex-M23 microcontroller @ 64 MHz with 96KB SRAM, 512 KB  dual-bank flash for OTA upgrade, 4 KB LDROM; LQFP128 package Storage – MicroSD card connector On-board wireless modules ESP12-F (ESP8266) 802.11b/g/n module MDBT42Q-PAT Bluetooth 4.2/5.0 LE module APC1278 (for 408 / 433 / 470 MHz)  LoRa module plus antenna Serial – CAN and RS485 transceiver USB – 1x Micro USB OTG connector (to M263 […]

ESP32-S2 board targets battery-powered applications with 30uA deep sleep power consumption

ESP32-S2-DevKit-LiPo vs ESP32-S2-WROVER-Devkit-LiPo

A few months ago, Olimex unveiled renders of ESP32-S2-Devkit-LiPo WiFi board that was supposed to consume as little as 2uA in sleep mode, follows ESP32-S2-Saola-1 board form factor and pinout, and adds an ultra-efficient circuitry to support LiPo batteries. The good news is that Olimex has now launched two versions of their ESP32-S2 board optimized for battery-powered applications with ESP32-S2-DevKit-Lipo and ESP32-S2-WROVER-DevKit-Lipo (with 2MB PSRAM) going for 5.56 Euros and 6.36 Euros respectively. ESP32-S2-DevKit-LiPo specifications: Wireless module: ESP32-S2-DevKit-LiPo – ESP32-S2-WROOM with Espressif ESP32-S2 single-core 32-bit LX7 microprocessor up to 240 MHz with  128 KB ROM, 320 KB SRAM, 16 KB SRAM in RTC, 4MB SPI flash ESP32-S2-WROVER-Devkit-LiPo – ESP32-S2-WROVER – same as above plus 2MB PSRAM Wireless connectivity – 2.4 GHz 802.11 b/g/n WiFI 4 up to 150 Mbps Expansion – 2x 20-pin I/O headers with SPI, I2S, UART, I2C, touch sensors, PWM, etc… (pin-to-pin compatible with ESP32-S2-SAOLA-1) Debugging – […]

Oplà IoT Kit is Arduino’s first open programmable IoT platform

Arduino Opla IoT Kit

Arduino is well-known for its maker boards and shields that are sometimes sold as part of kits to experiment with electronics. Arduino Oplà IoT kit is a little different as it looks more like an actual consumer product once assembled. Powered by an Arduino MKR WiFi 1010 board, it is designed to make getting started with IoT easy for beginners, while still allowing more advanced users to customize and hack their smart home applications. Arduino Oplà IoT Kit is comprised of several hardware components: MKR IoT carrier with a 1.2-inch OLED color display, onboard environmental sensors (temperature, humidity, pressure, light, and proximity), IMU sensor, Grove connectors, two 24V relays, and five capacitive touch buttons. Arduino MKR WiFi 1010 board powered by Microchip SAMD21 Cortex-M0+ MCU and equipped with a 2.4 GHz WiFi 4 and Bluetooth 4.2 module based on ESP32 chip. Sensors – PIR motion sensor and moisture sensor A […]

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