Coral Dev Board Micro combines NXP i.MX RT1176 MCU with Edge TPU in Pi Zero form factor

Coral Dev Board Micro

Coral Dev Board Micro is the latest iteration of Google’s Edge AI devkit with an NXP i.MX RT1176 Cortex-M7/M4 crossover processor/microcontroller coupled with the company’s 4 TOPS Edge TPU, a camera, and a microphone in a board that’s about the size of a Raspberry Pi Zero SBC. The new board follows the original NXP i.MX 8M-based Coral Dev board that was introduced in 2019, and Coral Dev Board mini based on MediaTek MT8167S processor launched in 2020, and keeps with the trend of providing more compact solutions with lower-end host processors for edge AI. Coral Dev Board Micro specifications: MCU – NXP i.MX RT1176 processor with an Arm Cortex-M7 core @ up to 1 GHz, Cortex-M4 core up to 400, 2MB internal SRAM, 2D graphics accelerators; System Memory – 512 Mbit (64 MB) RAM Storage – 1 Gbit (128 MB) flash memory ML accelerator – Coral Edge TPU coprocessor delivering […]

Bluetooth LE 5.0 module enables batteryless sensors thanks to Renesas RE01B MCU

RELOC RM-BE1 BLE 5.0 module energy harvesting

RELOC RM-BE1 Bluetooth 5.0 module with embedded energy harvesting capabilities for batteryless sensors adds to the list of energy harvesting news we’ve written about since the beginning of the year, with UEI chip for remote controls, a devkit with a smart coffee cup,  and Atmosic ATM33 BLE 5.3 chip. The RM-BE1 module is powered by Renesas RE01B Arm Cortex-M0+ Bluetooth microcontroller that leverages Renesas’ SOTB (Silicon on Thin Buried Oxide) process technology enabling ultra-low power. We’ve been told the chip can run at 35uA/Mhz with internal LDOs and <20uA/Mhz with additional external DCDCs, as well as around 600nA in standby mode. RELOC RM-BE1 module key features and specifications: MCU – Renesas RE01B Arm Cortex-M0+ microcontroller @ 64 MHz with 1.5MB flash, 256KB SRAM Connectivity Bluetooth LE 5.0 with Long Range (up to 400 m) and high data throughput (2 Mbps) support RF output power – Up to +4 dBm Receiver […]

Atmosic ATM33 – A Bluetooth LE 5.3 Cortex-M33 MCU with energy harvesting capabilities

ATM33e energy harvesting evaluation board

Atmosic ATM33 is a Bluetooth LE 5.3 compliant Cortex-M33 microcontroller with optional energy harvesting capabilities that can enable up to 5x longer battery life and even battery-free solutions. The 64 MHz MCU also comes with 64 KB ROM, 128 KB RAM, 512 KB non-volatile memory, hardware security features, and SensorHub hardware block that allows data to be managed while the majority of the SoC, including the MCU core, is in a hibernated state. Atmosic ATM33 specifications: MCU core – Arm Cortex M33F core @ 64 MHz Memory/Storage 64 KB ROM, 128 KB RAM, 512 KB NVM Retention RAM configuration: 16 KB to 128KB in 16 KB step sizes Wireless Connectivity Bluetooth Low-Energy 5.3 compliant 2 Mbps, 1 Mbps 500 kbps, and 125 kbps PHY rates Supports Bluetooth Angle-of-Arrival (AoA) and Angle-of-Departure (AoD) direction finding Tx: 0 to 10dB 0.7mA receiver 16 MHz / Optional 32.768 kHz Crystal Oscillator Atmosic SensorHub […]

Wiliot Starter Kit for retailers features a smart coffee cup tracking temperature, fill level, location, etc…

smart coffee cup with sensors, energy harvesting

Wiliot Starter Kit aims to demonstrate the ability of the Wioliot’s self-powered IoT Pixel and cloud services to retailers with a kit including a Coffee cup that’s capable of tracking liquid temperatures, fill level, motion, location changes, humidity, and proximity. The kit was previously only available to larger retailers through a “controlled release model”, but the company has now switched to an “open model” so that any retailers can use the technology to track products and packages. Let’s what’s included inside the start kit, and try to understand how the Wiliot solution works. Wiliot Starter Kit includes the following hardware: 1 x IoT Pixel-ready Coffee Cup 5 x Single-Band IoT Pixels mounted on cardboards 5 x Dual-Band IoT Pixels mounted on cardboards 1 x Single-Band Bridge Device 1 x Dual-Band Bridge Device You’ll also get 6 months of Wiliot Cloud Services, access to the Wiliot community forum & support Portal, […]

NOVELDA UWB X4 sensor can detect submillimeter movements

NOVELDA UWB X4F103 sensor

We’ve just written about an ESP32 UWB board equipped with an ultra-wideband module designed for indoor positioning with about 10 centimeters accuracy, which should be good enough for many applications, but it turns out UWB sensors can be made to be much more accurate. NOVELDA has just announced the UWB X4/X4F103 sensor and development kit that can detect submillimeter micro-movements such as breathing for human presence detection and does so at a really low power consumption of under 2mW. NOVELDA UWB X4 (X4F103) highlights: High-precision ranging for accurate distance measurement and absolute range bounding based on patented impulse radar technology Low power consumption below 2mW, and no co-existence issues with other sensors Wide detection zone for accurate detection with up to 180-degree field of view Up to 5m range Works through plastic and glass or layers of clothing Package – 12 x 12mm sensor A big difference compares to Decawave […]

$1.8 XT-ZB1 Zigbee & BLE devkit features BL702 RISC-V module

XT-ZB1 Zigbee development board

Bouffalo Labs BL702 is a 32-bit RISC-V microcontroller with a 2.4 GHz radio for Zigbee 3.0 and Bluetooth 5.0 LE connectivity that we first found in the Sipeed RV-Debugger Plus UART & JTAG debug board that did not make use of the radio at all. But a BL702 development kit was brought to my attention, with the XT-ZB1 devkit equipped with a Zigbee & BLE module of the same name, and sold for just $1.80 per unit on Aliexpress. Shipping adds $4.63 where I live, but they also offer packs of 5 or 10 with the same shipping fee, meaning if you buy 10 the total cost should be around $22 including shipping, or around $2.2 per board. Alternatively, the module alone goes for $1. XT-ZB1 devkit specifications: XT-ZB1 wireless module with MCU – BL702C 32-bit RISC-V microcontroller @ 144 MHz with FPU, 132KB RAM, 192KB ROM, 1Kbit eFuse Storage […]

MYIR introduces i.MX 8M Plus module and devkit with AI/ML capabilities

MYIR i.MX 8M Plus development kit

There are already plenty of i.MX 8M Plus systems-on-module, but here’s one more courtesy of MYIR Tech with MYC-JX8MPQ i.MX 8M Plus module with as well as MYD-JX8MPQ development board for evaluating the solution. The module is especially well suited to applications leveraging Artificial Intelligence (AI) and Machine Learning (ML) with the NXP Cortex-A53/M7 integrating a 2.3 TOPS Neural Processing Unit (NPU). The module comes with up to 6GB LPDDR4, 128GB eMMC flash, 32MB QSPI flash, a PMIC for power management, as well as a 314-pin MXM 3.0 connector exposing the I/Os from the processor. MYC-JX8MPQ module specifications: SoC – NXP i.MX 8M Plus (MIMX8ML8CVNKZAB) quad-core Cortex-A53 processor @ 1.6 GHz, real-time Arm Cortex-M7 co-processor @ 800 MHz, 2.3 TOPS AI accelerator, 2D/3D GPU, HiFi4 Audio DSP, and 1080p VPU System Memory – 3GB LPDDR4 (option up to 6GB) Storage – 8GB eMMC flash (option up to 128GB), 32MB QSPI […]

Develop USB Host and Device applications with ESP32-S3-USB-OTG board

ESP32-S3-USB-OTG board

ESP32-S series chips like ESP32-S2 and ESP32-S3 come with a USB OTG interface, and Espressif unveiled the ESP32-S3-USB-OTG board last September in a post entitled “ESP-USB: Espressif’s Wireless Communication Solution“, where they mostly focused on USB code samples with documentation in Chinese only and provided few details about the board itself. But I browsed the company’s official Aliexpress store earlier this week, and I noticed ESP32-S3-USB-OTG board was up for sale for $35 plus shipping, with additional information now available, so let’s have a closer look. ESP32-S3-USB-OTG board specifications: Wireless module – ESP32-S3-MINI-1-N8 module with ESP32-S3 dual-core Xtensa LX7 processor with WiFi 4 and Bluetooth 5.0 connectivity, 8MB QSPI flash Storage – MicroSD card socket Display – 1.3-inch color LCD USB 1x Full-speed USB host port 1x Full-speed USB slave port 1x Micro USB port for debugging (UART console) Expansion – 14 pads with 6x GPIO, JTAG, 3.3V and GND […]