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June 24, 2021June 24, 2021 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Avnet AVT9152 – nRF52840 & nRF91 IoT module and devkit

Avnet AVT9152 is an IoT module and development kit that combines two Nordic Semi wireless solutions, namely nRF52840 Bluetooth 5.2/LE multiprotocol SoC and nRF91 IoT cellular system-on-module with NB-IoT, LTE-M, and GPS connectivity. The module supports Avnet’s enterprise-ready IoTConnect Platform, and the development kit combines with IoT module with a 3-axis accelerometer, a 3-axis gyroscope, as well as pressure, temperature, relative humidity, ambient light, and motion (PIR) sensors to help with the development of IoT applications such as tracking devices, vending machines, points-of-sale, smart buildings, industrial IoT, and more. Avnet AVT9152 module – nRF52840 + nRF91 Key features and specifications: Wireless SoC/SiP Nordic Semi nRF9160 Cortex-M33 based system-in-package (SiP) with LTE-M/NB-IoT global carrier certification for LPWAN connectivity; support for power save mode, PSM and eDRX Nordic Semi nRF52840 Cortex-M4F microcontroller with Bluetooth 5.0 and Bluetooth LE for short-range communication Flexible LTE and GPS antenna options 50x castellated holes with UART, […]

June 23, 2021 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

LILYGO Mini E-Paper Core combines ESP32 with 1.02-inch ePaper Display in 3D printed enclosure

LILYGO Mini E-Paper Core is another ESP32-based e-Paper display by LILYGO, but it’s a really tiny 1.02-inch e-Paper display housed in a 3D printed enclosure that reminds me of M5Stack Core with a 2-inch TFT LCD. The tiny low-power display also offers a MicroSD card socket, a reset button, a three-way user button, as well as headers for GPIOs, ADC, DAC, SPI, and more. LILYGO Mini E-Paper Core specifications: Wireless SiP – ESP32-PICO-D4 system-in-package with ESP32 dual-core processor, 4MB Flash, 2.4 GHz WIFi 4 & Bluetooth connectivity Storage – MicroSD card socket Display – 1.02-inch e-paper display with 128×80 resolution USB – 1x USB Type-C for power and programming Expansion 7-pin 2.54mm pitch header with 5x GPIO, 2x ADC, 2x DAC, 3.3V, and GND 8- pin 2.54mm pitch header with 4x GPIO, SPI, 1x ADC, 5V, VBUS, VBat, and GND Misc – Three-way toggle button connected to G36, G0, […]

June 21, 2021June 23, 2021 by Jean-Luc Aufranc (CNXSoft) - 15 Comments

$3.5 RV-Debugger Plus UART & JTAG debug board comes with BL702 Zigbee & BLE RISC-V SoC

USB to UART debug boards are a necessity for anyone playing with single board computers, at least when using bleeding-edge bootloader or Linux kernel where the target board may not always boot, or when troubleshooting booting problems. Those are often based on FDTI or WCH chips, but Sipeed RV-Debugger Plus features Bouffalo Lab BL702 Zigbee & Bluetooth LE RISC-V SoC instead and offers both UART and JTAG interfaces. So let’s have a look at both the board and SoC. Sipeed RV-Debugger Plus USB to TLL debug boards are meant to be simple and that’s the case for Sipeed latest BL702 board as it comes with a 12-pin connector with Tx/Rx for UART, 8 signals for JTAG, plus 5V, 3.3V, and GND power signals. We can also see pads for Tx/Rx/CTS, a boot button, a crystal oscillator, and a USB-C port to connect to the host computer. What I don’t see […]

June 8, 2021June 8, 2021 by Jean-Luc Aufranc (CNXSoft) - No Comments

NXP’s Ultra-Wideband (UWB) evaluation kits work with Apple U1 chip

The Fira Consortium was established in 2019 to provide an Ultra Wide-Band (UWB) ecosystem for real-time centimeter accuracy indoor positioning with companies such as NXP Semiconductors and Samsung Electronics on board. More companies have joined since then including Apple which designed its own UWB chip – the Apple U1 – found in recent iPhone 11 & 12 smartphones, as well as Apple Watch Series 6 to enable “Nearby Interaction“. If you’d like to develop UWB-enabled IoT applications, NXP has announced two beta UWB evaluation kits – developed with partners – compatible with Apple U1: Murata Type2BP EVK and MobileKnowledge’s UWB Kit Mobile Edition. Murata Type2BP EVK Specifications: Wireless chips/modules Murata’s Type2BP ultra-small UWB module based on NXP Trimension SR150 Arm Cortex-M chip for IoT devices. 802.15.4z compatible and supports 3D AoA (Angle-of-Arrival) for extra precision. NXP QN9090 Arm Cortex-M4 Bluetooth 5.0 LE SoC with 640 KB flash, 152 KB RAM, […]

May 24, 2021 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

ESP32-WROOM-DA dual PCB antenna WiFi module aims for longer range, better reliability

Espressif Systems ESP32-WROOM-DA is another ESP32 based WiFI & BLE module with a twist as its dual PCB antenna design aims to provides a longer range and more reliable connectivity by automatically switching to a specific PCB antenna depending on signal strength. The new module features ESP32-D0WD-V3 dual-core Xtensa LX6 dual-core processor with a maximum frequency of 240 MHz, along with 520 KB of SRAM and 448 KB of ROM, and has been designed to be pin-to-pin compatible with ESP32-WROOM-32E module found in products such as Pico Wireless, in order to ease migration between the two modules. Espressif did not provide detailed specifications for the new WiFi module, but assuming it’s mostly based on ESP32-WROOM-32E design, ESP32-WROOM-DA should have the following key features & specifications: WiSoC – Espressif Systems ESP32-D0WD-V3 embedded, Xtensa dual-core 32-bit LX6 microprocessor, up to 240 MHz with 448 KB ROM for booting and core functions, 520 […]

April 24, 2021April 24, 2021 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

AI-Thinker introduces 5 ESP32-C3 modules pin compatible with ESP8266 & ESP32 modules

ESP32-C3 is the first RISC-V wireless SoC from Espressif Systems, and at the time of the initial announcement promised to cost about the same as ESP8266 but adds support for Bluetooth 5.0 LE besides 2.4 GHz WiFi, and retain software compatibility through the ESP-IDF framework. We were also told the goal was to provide ESP8266 compatible modules, and AI-Thinker has just announced five new ESP32-C3 modules compatible with earlier ESP8266 & ESP32 modules as shown in the table below. The table above is quite low resolution but that’s the best I could obtain from the company… It’s also a complete mess, not showing all alternative ESP8266 or mistaken in board sizes. So I’ll try to give a short summary of differentiating features and equivalent ESP8266/ESP32 modules: ESP32-C3F is meant to replace ESP-12F with a 24 x 16 mm form factor. It does add an IPEX connector, besides the PCB antenna. […]

April 23, 2021 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Arduino unveils Edge Control board for smart agriculture

Arduino hardware and software have been used for smart agriculture applications for years, but Arduino has now launched a board part of its Arduino Pro program specifically designed for smart farming. Meet Arduino Edge Control. Powered by a Nordic Semi nRF52840 Bluetooth microcontroller, the board offers the usual digital & analog I/O’s, plus four 60/V2.5A solid-state relays, hydrostatic watermark sensor inputs, support for DC or solar power input, and can be augmented with one or two Arduino MKR boards for WiFi, 3G NB-IoT, or LoRaWAN connectivity. Arduino Edge Control specifications: MCU – Nordic Semi nRF52840 Arm Cortex-M4F microcontroller @ 64 MHz with 1MB flash, 256KB SRAM Additional storage – 2 MB QSPI flash memory, MicroSD card slot Connectivity Bluetooth LE Optional Wifi, 2G, 3G, NB-IoT, eMTC, and/or LoRaWAN via Arduino MKR board USB – Full-speed 12 Mbps micro USB port Expansion I/Os Digital Input – 6x edge-sensitive wake-up pins Digital […]

April 11, 2021April 11, 2021 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

ESP32-C6 WiFI 6 and Bluetooth 5 LE RISC-V SoC for IoT devices coming soon

Espressif Systems introduced their first RISC-V wireless SoC last year with ESP32-C3 single-core 32-bit RISC-V SoC offering both 2.4GHz WiFi 4 and Bluetooth 5.0 LE connectivity, and while the company sent some engineering samples of ESP32-C3 boards months ago, general availability of ESP32-C3-DevKitM-1 and modules is expected shortly. But the company did not stop here, and just announced their second RISC-V processor with ESP32-C6 single-core 32-bit RISC-V processor clocked at up to 160 MHz with both 2.4 GHz WiFi 6 (802.11ax) and Bluetooth 5 LE connectivity. ESP32-C6 preliminary specifications: CPU, Memory, and Storage 32-bit RISC-V single-core processor up to 160 MHz 384 KB ROM 400 KB SRAM (16 KB for cache) 8 KB SRAM in RTC SPI, Dual SPI, Quad SPI, and QPI interfaces for external flash and/or PSRAM WiFi 2.4 GHz 802.11ax Wi-Fi 6 with 20 MHz bandwidth, support for station interface 2.4 GHz 802.11b/g/n WiFI 4 with 20/40MHz […]