ESP32-C3 WiFi & BLE RISC-V processor is pin-to-pin compatible with ESP8266

When we reported about ESP32-S2-MINI modules last September, we also noted Espressif teased us with ESP32-S3 and ESP32-C3 with close to no details. ESP32-S3 is expected to be a multi-core WiFI & Bluetooth processor with AI instructions/accelerator, but there were no details about ESP32-C3 at all, and we only found out it would be a RISC-V processor several weeks ago. But Twitter user Johnny Wu posted a screenshot in Chinese and its translation claiming ESP32-C3 was finally released by Espressif Systems. [Update: The datasheet has been released. See comments.] ESP32-C3 WiSoC is pin to pin compatible with ESP8266, works with ESP32 development framework (e.g. ESP-IDF), supports Wi-Fi & Bluetooth LE 5.0 connectivity, and integrates 400KB SRAM & 384KB ROM. It features a single32-bit RISC-V (RV32IMC) core @ 160 MHz, and consume as little as 5uA in deep sleep mode. Pricing will also be similar to ESP8266. I could not find any information on Espressif Systems yet, nor much on other […]

Support CNX Software – Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

STMicro launches cheaper STM32WB30 and STM32WB35 Bluetooth LE & Zigbee MCUs

STMicro introduced the first wireless STM32 microcontrollers in 2018 with STM32WB Cortex-M4/M0+ MCU family equipped with Bluetooth 5.0 and 802.15.4 radios, and they followed earlier this year with STM32WL Cortex-M LoRa SoC. The company has not just announced yet another wireless STM32 family but instead added the more affordable STM32WB35 and STM32WB30 chips that can be obtained for under $2 in quantities. The new STM32WB microcontroller enabled a low BOM cost thanks to their memory configuration. Specifically, STM32W30 comes with 256KB flash while STM32W35 features 512 KB flash, and both offer 96 KB of RAM. This compares to STM32WB55 will up to 1MB flash and 256KB of RAM. Apart from the lower memory and flash capacity, the new wireless MCUs have basically the same features as other members of the STM32WB family with 16-bit ADC, quad-SPI interface (STM32WB35 only), as well as Bluetooth Low Energy 5.0, Zigbee 3.0, and OpenThread (802.15.4) certified stacks. Features of STM32WB30 corresponds to the one […]

Support CNX Software – Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

BL602 IoT SDK and $5 DT-BL10 WiFi & BLE RISC-V development board

Yesterday, we wrote about Bouffalo BL602 32-bit RISC-V WiFI and Bluetooth LE wireless SoC that should eventually compete with ESP8266 in terms of price but with more features, higher performance. and more resources like memory and storage. At the time, I noted I could not find any tools for the processor, but I was informed a BL602 SDK (Doiting_BL) and documentation had already been released on Github. The basic readme and a user manual are already available in English, but the main documentation is still in Chinese with various examples to configure GPIO, YART, WiFi, and Bluetooth. You’ll find the documentation in Github, as I could not find a website yet: Go to Doiting_BL/docs/html folder and then open index.html in your browser to access the documentation. The SDK works both in Windows and Linux and relies on either Eclipse & OpenOCD or Freedom Studio & OpenOCD. A graphical software called Dev Cube is used for flashing the board. The documentation […]

Support CNX Software – Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

BL602/BL604 RISC-V WiFi & Bluetooth 5.0 LE SoC will sell at ESP8266 price point

Hisilicon Hi3861 may be the first RISC-V WIFI SoC we’ve reported on, but due to political uncertainties and security concerns, supplies may not be available outside of China. So alternatives are welcomed, and Nanjing-based Bouffalo Lab (not a typo, 博流智能科技 in Chinese) has recently introduced BL602 and BL604 32-bit RISC-V WiFi and Bluetooth LE SoC for low-power IoT applications that are supposed to compete against ESP8266 in terms of price but with higher performance and additional features. The BL602 will also be integrated into an upcoming Sipeed Longan-series board, and potentially a new IoT board from Pine64. BL602 / BL604 key features & specifications: MCU subsystem – 32-bit RISC-V CPU with FPU with dynamic frequency from 1MHz to 192MHz, L1 cache Memory – 276KB SRAM on-chip Storage 128KB ROM, 1Kb eFuse, and optional Embedded Flash on-chip XIP QSPI flash support  Wireless Wi-Fi 4 – 802.11 b/g/n @ 2.4 GHz Bluetooth 5.0 LE Wi-Fi Fast connection with BLE assistance Wi-Fi Security […]

Support CNX Software – Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

BBC micro:bit v2 board Unveiled with Nordic nRF52833 SoC, Microphone and Speaker

The original BBC micro:bit educational board was launched in July 2015 with a Nordic nRF51822 Arm Cortex-M0 MCU @ 16 MHz providing Bluetooth LE connectivity,  a few I/Os, some buttons, and a LED matrix acting as a small display. The British company has now launched a new update with BBC micro:bit v2 with the same form factor, but equipped with a more powerful Nordic Semi nRF52833 Bluetooth 5.1 Arm Cortex-M4 MCU clocked at 64 MHz and adding a microphone and a speaker. BBC micro:bit v2 specifications: Wireless MCU – Nordic Semi nRF52833 Arm Cortex-M4 MCU clocked at 64 MHz with 128 KB RAM, 512 KB flash, Bluetooth 5.1 LE connectivity “Display” – 25x red LED indicator lights in a 5×5 matrix USB – 1x micro USB port for power and programming via NXP Kinetis KL27Z Cortex-M0+ microcontroller Audio – Built-in MEMS microphone and speaker Expansion 25 pins on edge connector with 4 dedicated GPIO, PWM, I2C, SPI etc… 5x rings […]

Support CNX Software – Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

NXP IW620 2×2 Wi-Fi 6 & Bluetooth 5.1 Chip Targets Gaming, Audio, Industrial and IoT Markets

NXP has announced the IW62X WiFi 6 & Bluetooth 5.1 family of chips designed for high-end gaming, audio, industrial and IoT markets. The family currently consists of IW620 and IW620S parts with respectively PCIe and SDIO host interfaces. Both chips integrate dual-band Power Amplifiers (PAs), Low Noise Amplifiers (LNAs), and switches in order to reduce the board-level BOM (Bill of Materials). IW62X key features and specifications: Wi-Fi 6 (802.11ax) 2×2 Wi-Fi 6 DB (802.11ax) 1024 QAM, 80MHz Peak Throughput: 1.2 Gbps Improved wideband noise & MU-MIMO performance Advanced active channel scanning 802.11s, EasyMesh 802.11mc Bluetooth & Bluetooth Low Energy 5.1 BLE 2Mbps + Long Range BLE direction finding with Angle of Arrival (AoA) and Angle of Departure (AoD) BLE Mesh Antenna support 2×2 5G 1×1 2.4G + BT Multimode energy-efficient support (TWT, Micro AP, TX Power Control, Wi-Fi Direct, BT5.1) Host Interfaces IW620 – PCIe 1.0 IW620S – SDIO 3.0 UART for Bluetooth only I2S/PCM audio Power Supply Integrated PMIC […]

Support CNX Software – Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

Amazon Sidewalk – A Low Bandwidth Network For Connecting Smart Devices and IoT

In 2019, Amazon introduced the Sidewalk with privacy and security at the core. Amazon Sidewalk a low-bandwidth, long-distance wireless protocol that is expected to provide a new way for devices to stay connected especially when smart devices leave their WiFi or Bluetooth coverage range by leveraging the 900 MHz spectrum. Amazon Sidewalk will most likely be an LPWAN type network since it is promising neighborhood-like device connectivity with is crowdsourcing initiative. It uses Bluetooth Low Energy (BLE) for short distances, the 900 MHz spectrum, and other frequencies for longer distance coverage. Sidewalk attempts to make sure your BLE devices can still connect to your home network even when you take a walk away from your home. According to Amazon, users can easily access the Sidewalk network using two types of devices: Sidewalk Bridges and Sidewalk-enabled devices. Amazon has now announced that compatible Echo devices can now act as bridges and also some selected Ring Floodlight and Spotlight Cams will also be supported […]

Support CNX Software – Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

Silicon Labs Introduces Bluetooth 5.2 BGM220S SiP and BGM220P PCB Module

Silicon Labs has recently announced two hardware modules based on the company’s BG22 secure Bluetooth 5.2 SoC, namely BGM220S System-in-Package (SiP) measuring just 6x6mm, and BGM220P, a slightly larger PCB variant optimized for wireless performance along with a better link budget for greater range. Both modules can be integrated into products with up to 10-year battery life from a single coin cell. All BGM220S/P variants can support Bluetooth Direction Finding and some of the parts can also handle Bluetooth Mesh Low Power protocol. Silicon Labs BGM220S/P key features: Wireless SoC – Silicon Labs EFR32BG22  Arm Cortex-M33 with DSP instructions and floating-point unit, up to 512 kB Flash, 32 kB RAM, 2.4 GHz radio with TX power up to 8 dBm, and Embedded Trace Macrocell (ETM) for advanced debugging Supported Protocols Bluetooth Low Energy (Bluetooth 5.2) Direction-finding Bluetooth mesh Low Power Node Various MCU peripherals include ADC, up to 25x GPIOs, DMS, PWM, I2C, UART, PDM (mic), etc… See EFR32BG22 specifications […]

Support CNX Software – Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples