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TI’s CC3230x SimpleLink MCUs Offer BLE and Wi-Fi Radio Coexistence

Posted on by Micael Coutinho

One interesting feature the Raspberry Pi has gotten us used to is having Bluetooth and Wi-Fi on the same board, and it has proven extremely useful for IoT projects that require such connectivity. But sometimes, those power hungry boards can become a burden when you need to make a device that relies on batteries as its main source of power, or maybe you need some more peripherals and do not need Linux. In this kind of projects, a Raspberry Pi is not ideal. But there are other options, one of them being the CC3230S/CC3230SF MCU’s from Texas Instruments, SimpleLink Wi-Fi wireless microcontrollers that offer both Wi-Fi and Bluetooth connectivity (by coexistence with BLE radios), at a very interesting price point.

The CC3230S/CC3230SF MCU’s designed by Texas Instruments is a family of SoC’s that integrate two processors within a single chip. They have multilayered security capabilities, such as separate execution environments, networking security, device identity and key, hardware accelerators for cryptographic engines, application level security, software tamper detection, among others. besides that, it comes packed with peripherals, such as SPI, I2C, ADC, I2S and even a parallel port for a camera sensor, on what is overall a very interesting and feature packed set of MCU’s.

Regarding features, we are looking at: 

  • MCU: ARM Cortex-M4, clocked at 80 MHz
  • Memories: 256 kB of RAM and 1 MB of executable Flash (optional)
  • 27 I/O pins that enable a rich set of peripherals (UART, I2S, I2C, SPI, SD, ADC, 8-bit parallel, timers and PWM)
  • Integrated DC/DC converters with support for a wide range of voltage supply
  • Advanced low power modes
  • Wi-Fi 802.11b/g/n 2.4GHz core, with multiple security protocols (WEP, WPA / WPA2 PSK, WPA2 enterprise, WPA3 personal) and modes (Access point, station and Wi-Fi direct)
  • Application throughput: 16 Mbps (UDP), 13 Mbps (TCP) with peak of 72 Mbps
  • Internet and application protocols: HTTPs, IPV4 and IPV6 TCP/IP stack, 16 BSD sockets (protected with TLS v1.2 and SSL 3.0)
  • Multilayered security features
  • Coexistence with BLE radios (CC13x2 / CC26x2)
  • RGK package of 9 mm x 9 mm
  • Industrial temperature range (-40 to 85 ºC)
Functional blocks of the CC3230x
Functional blocks of the CC3230x

As you can see, it is quite packed in features and allows you to develop a lot of interesting IoT applications, specially if secure connectivity and energy savings are what you are looking for. Typical projects that fit into this category are building and home automation ideas, such as HVAC systems, thermostats, video surveillance, doorbells and cameras on areas of difficult access, building security systems, smoke and water leak detectors. Other areas of interest are asset tracking, factory automation and healthcare / medical industries. Lastly, its pricing starts at $8.08, which is very competitive, if you consider the set of features it provides.

TI CC3230S/CC3230SF Mouser link: https://eu.mouser.com/ProductDetail/Texas-Instruments/CC3230SM2RGKR?qs=hWgE7mdIu5SGWGaKoI87EQ%3D%3D

Renesas / IDT OB1203 Sensor Modules for Mobile and Wearable Devices

Posted on by Micael Coutinho

These days, we are looking to size down all our projects, in order to make them fit just about anywhere, and the manufacturers keep on delivering when it comes to smaller, feature-packed components. An example of that evolution is the Renesas / IDT new OB1203 sensor modules, that integrate 4 different sensors in a very compact form factor.

The OB1203 module from Renesas / IDT is a fully integrated set of biosensor modules, ready to be deployed in mobile and wearable devices. It integrates a biosensor, for SpO2 measurements, an ambient light sensor, with high lux accuracy, a color sensor with four parallel channels and a highly integrated proximity sensor. This sensor module is designed for multiple purposes, such as monitoring the heart rate, blood oxygen concentration and pulse oximetry. By looking at this module, it is just how admirable the way they managed to fit them into such a small package, in a manner that makes them work properly.

Regarding the features of this promising module, we are looking at: 

  • Biosensor, ambient light sensor, color sensor and proximity sensor in a minisculed, optically enhanced 4.2 mm × 2 mm × 1.2 mm package
  • Operating voltage range from 1.7 to 3.6 V
  • Typical standby current of 2uA
  • Operating temperature range from -40 to 85 ºC
  • Biosensor: 
    • SpO2 measurement behind dark, IR transmissive ink
    • Output resolution from 16 to 18 bits PPG
    • Storage of measurements in an 18 bit wide, FIFO memory of 32 samples
    • Programmable measurement rate up to 3200 samples per second
  • Ambient light sensor: 
    • High lux accuracy over different light sources
    • Absolute sensivity ranging from 0.06 lux to > 150000 lux
    • Output resolution LS / CS from 13 to 20 bits
  • Color sensor:
    • Red, green, blue and clear parallel channels
    • Accurate Correlated Coor Temperature (CCT)
    • Accurate CIE 1931 RGB color measurement
    • Ouput resolution CS from 13 to 20 bits
  • Proximity sensor:
    • Integrated and trimmed LED source, driver and photodetector
    • Programmable pulsed LED output current of 250 mA
    • Resolution ranging from 12 to 16 bits
    • Sunlight of ambient light supression of over 100 klx
All you need is 3 resistors and 2 capacitors to unleash the potential of the OB1203
All you need is 3 resistors and 2 capacitors to unleash the potential of the OB1203

As you can see, this is a very powerful sensor module to get your hands on. You can apply to almost any gadget that is widely used nowadays: from the mobile smartphones, to headphones and other wearables, passing by the fitness and well-being related devices, to even gesture detection projects, it can be applied to just anything there is, due to its very convenient size. All you need to do is properly place it into the PCB of your project and you are all set! Lastly, and probably one of the most interesting aspects of it, its price. Costing just $4.68, this sensor module comes at a very interesting price range.

Renesas / IDT OB1203 Mouser link: https://eu.mouser.com/ProductDetail/Renesas-IDT/OB1203SD-C4V?qs=PzGy0jfpSMuO76WCDyruAQ%3D%3D

Arduino makes Internet of Things simple with launch of new Oplà IoT Kit

Posted on by mixos

Experience the Internet of Things (IoT) in your hands and build connected devices for the home or workplace.

Arduino, the leading IoT development platform today announces the launch of its new Oplà IoT Kit, the first open programmable IoT platform that allows anyone to build custom IoT devices, with full control over personal data. The entry-level kit comes complete with a set of 8 self assemble projects ready to show you how to easily turn everyday devices into ‘smart devices’.

The Arduino Oplà IoT Kit allows you to manage and control connected devices from multiple interfaces, such as the Oplà hardware device, custom web dashboards and the iOS/Android mobile app.

The kit contains 8 IoT projects that can offer different experiences for each user based on their individual level of expertise, from maker to professional. This includes 4 out-of-the-box projects that are ready to deploy around the house: remote controlled lights, a home weather station, a smart garden and a thermostat control. In addition, there are 4 projects for users to grasp core IoT concepts and how they can be integrated into real-life applications: home security alarm, solar system tracker, remote messaging and inventory management – all of which can be monitored and controlled via the Arduino IoT Cloud. More projects will be released in the future as online tutorials, in addition to projects shared by the community of users on Arduino Project Hub.

With no soldering necessary, the Oplà IoT Kit is ideal for beginners, but it is also a valuable resource for experienced users. It is based on the Oplà unit, which is a carrier board with an OLED colour display, on-board sensors (temperature, humidity, pressure, IMU, light), capacitive touch buttons, buzzer, color LEDs, 24V relays, SD card reader. The carrier includes a slot for a battery with an integrated battery charger, which makes the device portable and wireless. The kit also contains an MKR WiFi 1010 board and a round plastic enclosure, and two more external sensors, such as motion sensor and moisture sensor. Thanks to the swappable MKR WiFi 1010 board, users will be able to choose another connectivity method by plugging another board from the MKR family in order to switch to GSM, LoRa®, NarrowBand or more.

The Oplà IoT Kit acts as the physical interface of the Arduino IoT Cloud, which allows users to build dashboards and plot data in real-time, while browsing values along a timeline. This is all controllable from a mobile with the Arduino IoT Remote app. Compatibility with Amazon Alexa enables seamless voice control to integrate custom connected devices into a real-life setting. The kit comes with a 12 months subscription to the Arduino Create MKR Plan, with premium access to the Arduino IoT Cloud.

Commenting on the launch, Fabio Violante, CEO at Arduino said: “When creating the Oplà IoT Kit, we wanted to design a platform that would allow anyone to gain a complete experience of what the Internet of Things has to offer around the home or workplace and I really believe we have achieved this. It is a great kit for users to build custom devices and enjoy being creative, no matter your level of experience. With this launch, we take yet another step towards lowering the barrier to entry for IoT development and cannot wait to see the projects created by users embracing connected devices both in their homes and at work.”

The announcement follows shortly after the launch of the Arduino Explore IoT Kit, which features 10 step-by-step online education activities. The Explore Kit is designed to help high school and college students come to grips with the Internet of Things. Arduino believes the best way to learn is by adopting a learning-by-doing approach, through the likes of inventive experiments and challenges, as well as building purposeful applications.

For more information, please visit https://promo.arduino.cc/opla-iot-kit and https://promo.arduino.cc/explore-iot-kit.

Advantech Launches Latest SMARC 2.1 Design SOM-2532 for Real Time Automation Control

Posted on by mixos

Advantech, a world leader in embedded A-IoT, launches SMARC 2.1 SOM-2532 featuring the latest 10 nm Intel® Elkhart Lake processor. SOM-2532 offers up to 4 cores and yields 40% better CPU performance and improved graphics processing compared with previous models. This innovative solution supports multiple I/O and displays including two GbE LAN supporting TSN PHY, three independent 4K displays, two USB 3.1 Gen 2 (10Gbps), and 1 x SATA Gen3. With its improved processing power and diverse I/O, SOM-2532 is an excellent choice for a variety of applications including industrial control, transportation and medical applications.

The latest SMARC 2.1 product offers significant Improvement of performance

Advantech´s SOM-2532 complaint to SMARC 2.1 specification debuted in March 2020. This solution is powered by Intel´s® Elkhart Lake Processor and supports on-board LPDDR4 3200Mt/s up to 16GB with IBECC (In-Band ECC). Advantech’s design features on-board UFS2.0, dual GbE LAN with TSN PHY, two CAN FD for higher data-throughput and 3 independent displays up to 4K. The new generation increases CPU performance by more than 40% and graphic performance up to two times compared to its predecessor. Non-volatile memory speeds improved, compared to eMMC 5.1 as SOM-2532 with UFS2.1 implementation can achieve a 40% increase in sequential read and a 20% increase in sequential write speeds.

Low Latency Transmission Technology Improves Data Synchronization

SOM-2532 features USB 3.2 Gen2(10GT/s) and PCIe Gen3(8.0GT/s), both of which are considerably faster than their predecessors. CAN-FD enables a maximum 8Mbps data transfer rate and would reach 10x the speed of the payload transmission, which is vital in data-intensive applications. Low latency and also classic CAN devices are supported in many cases. Using an increased data payload size and CAN-FD protocol, SOM-2532 enhances security. SOM-2532 utilizes TSN PHY to improve device communication accuracy. This system improves the precision of data synchronization over the network and minimizes jitter to reduce latency during real time device communication. SOM-2532’s combination of attributes makes it an ideal solution for applications in automation and transportation industries.

High Level Security and Stability Protects Data

SOM-2532 is equipped with dual LAN to improve cybersecurity in industrial automation. Users can connect multiple systems or schedule firmware updates using WISE-PaaS/OTA via an internal LAN to protect important data. They can also conduct external communication via an independent LAN in diverse usage conditions. Soldered LPDDR4 memory features an anti-vibration design and an on-board UFS to ensure product stability. Similarly, this wide operating temperature (-40 ~ 85 °C /-40 ~ 185 °F) of the device improves system reliability. Additionally, SOM-2532 utilizes FUSA (Functional Safety) to reduce dangers caused by machine malfunction. These features make SOM-2532 a safe option for portable devices and industrial applications.

Key Features

  • SMARC V2.1 Specification Compliant Module with Intel® Elkhart Lake processors
  • 2 ~ 4 Core CPU with up to 16GB LPDDR4 3200MT/s and IBECC supported by specific SKUs
  • 3x independent displays: LVDS (1920 x 1200 @ 60Hz/eDP), DP++(up to 4096×2160 @ 60 Hz), and HDMI (up to 3840×2160 @ 30 Hz,4096×2160 @ 60 Hz)
  • 4x PCIe x1, 2x GbE LAN support TSN, 2x USB 3.2 GEN2, 4x USB 2.0, 14x GPIO
  • 1x UFS on-board, 1x SATA III
  • Operating temperatures: Standard 0 ~ 60 °C (32 ~140 °F), Extended -40 ~ 85 °C (-40 ~ 185 °F)
  • Supports Advantech iManager and WISE-PaaS/DeviceOn

Advantech’s SMARC 2.1 Design SOM-2532 is available now. For more information regarding SOM-2532 or other products and services, please contact your local sales support team or visit our website at www.advantech.eu. Learn more about Advantech’s local customization options under http://bit.ly/AdvantechDMS

New OLED architecture has 10,000 PPI resolution

Posted on by mixos

Researchers at Samsung in Korea and Stanford University in the US have developed and patented a new architecture for OLED displays with resolution up to 10,000 pixels per inch (PPI). by Nick Flaherty @ eenewsembedded.com

The design uses adapted an electrode ultra-thin solar panels with a base layer of reflective metal with nanoscale corrugations, called an optical metasurface.

The metasurface can manipulate the reflective properties of light and thereby allow the different colours to resonate in the pixels. These resonances are key to improving the light extraction from the OLEDs.

Compared to OLED displays in today smartphones with resolution of 500PPI, the metaphonic pixel array will be able to provide brighter and better colour accuracy for virtual reality displays.

“We’ve taken advantage of the fact that, on the nanoscale, light can flow around objects like water,” said Mark Brongersma, professor of materials science and engineering at Stanford who worked with Won-Jae Joo at the Samsung Advanced Institute of Technology (SAIT). “The field of nanoscale photonics keeps bringing new surprises and now we’re starting to impact real technologies. Our designs worked really well for solar cells and now we have a chance to impact next generation displays,” he said.

The metasonic OLED offers an alternative to the two types of OLED displays that are currently commercially available. Red-green-blue OLEDs have individual sub-pixels that each contain only one colour of emitter. These are fabricated by spraying each layer of materials through a fine metal mesh to control the composition of each pixel. They can only be produced on a small scale.

Larger devices such as TVs use white OLED displays where each of the sub-pixels contains a stack of all three emitters and then relies on filters to determine the final sub-pixel colour. This is easier to fabricate but are more power-hungry as the filters reduce the overall output of light.

In conventional RGB-OLEDs, the different frequencies mean red sub-pixels have a different height from the blue emitters. This means materials deposited above the emitters have to be laid down in unequal thicknesses to create a flat screen. By contrast, the base layer corrugations in the metasonic OLEDs allow each pixel to be the same height for a simpler manufacturing process.

In lab tests, the researchers successfully produced miniature proof-of-concept pixels. Compared with colour-filtered white-OLEDs, the pixels had a higher colour purity and twice the luminescence as well as pixel density of 10,000 per inch.

The next steps for integrating this work into a full-size display is being pursued by Samsung.

www.stanford.edu

BOXER-8250AI: The Solution Built for Powering AI Edge Computing

Posted on by mixos

The BOXER-8250AI brings the power of NVIDIA® Jetson Xavier™ NX in a flexible edge computing system built for AI acceleration.

AAEON, a leader in AI edge solutions, announces the release of the BOXER-8250AI AI Edge box PC powered by NVIDIA® Jetson Xavier™ NX. With a rugged design and I/O layout featuring five Gigabit Ethernet ports, the BOXER-8250AI is perfect for powering edge networks and deploying intelligent applications from mask detection to virtual fences.

The BOXER-8250AI is powered by the innovative Jetson Xavier NX from NVIDIA. Featuring a six-core 64-bit ARM processor, it boasts 384 CUDA® cores, 48 Tensor Cores, and two NVDLA engines capable of running multiple neural networks in parallel, delivering accelerated computing performance up to 21 TOPS. Built to bring dedicated AI processing to the edge, the system also features 8GB of LPDDR4 memory and 16GB of onboard eMMC memory that’s expandable through the Micro-SD card slot.

The key feature of the BOXER-8250AI is its five Gigabit Ethernet LAN ports, designed to interface with high-speed cameras without delay or compromise of stream quality. Each port is designed to deliver 1 Gbps speeds individually, maximizing overall quality of performance. With the power of the NVIDIA Xavier NX SoC, the BOXER-8250AI can process multiple inputs and inferences in parallel, allowing a single BOXER-8250AI system to provide wider coverage and greater control wherever it’s deployed. The system also features four USB 3.2 Gen 1 ports and two COM ports allowing flexibility in connecting devices to the system.

AAEON brings industry leading embedded computing design to the BOXER-8250AI, creating an embedded AI Edge system that’s built to deploy just about anywhere. Fanless design keeps dust and other particles out, helping the system to run reliably and reduce maintenance costs. The system also offers wide operating temperature range, providing consistent computing performance in temperatures from -10°C all the way to 65°C.

“The BOXER-8250AI powered by NVIDIA Jetson Xavier NX offers users and developers a rugged, flexible platform built to handle multiple inferences or more intensive ones,” said Alex Hsueh, Senior Director of AAEON’s System Platform Division. “With its I/O layout, the BOXER-8250AI is perfect for connecting with IP cameras and increasing coverage area for smart security applications, such as virtual fences or monitoring crowds for fevers and compliance with face mask requirements.”

more information: https://www.aaeon.com/en/p/ai-edge-solutions-nvidia-jetson-xavier-nx-boxer-8250ai

The New Coral Dev Board is Powered by MediaTek

Posted on by Rik

At the beginning of this year, we saw Google’s announcement of a stripped-down Coral Dev Board Mini and Coral Dev Board implementing their in-house 4-TOPS Edge TPU. Now Seeed has come with $100 pre-orders on the Mini along with a pre-soldered Coral Accelerator Module. Shipment is expected at the end of October 2020.

The new Coral Dev Board Mini is powered by MediaTek 8167s SoC accompanied by the new solderable Edge TPU module. Like the Coral Dev Board, the Mini version runs Google’s version of Debian Linux called Mendel. The power-efficient MediaTek 8167s is equipped with 4x Cortex-A35 cores and an Imagination PowerVR GE8300 GPU. The processor is comparable with its superior siblings, the MediaTek 8167a and 8167b. The SoC adds comprehensive audio interfaces such as I2S and 8-channel TDM input and output. The MediaTek 8167s adds the support for 1280 x 800-pixel displays and H.264, H.265, and HEVC decoding. It also offers a 12MP camera ISP and H.264 encoding.

Coral Dev Board Mini

The Coral Dev Board Mini, as the name suggests, it is designed as an evaluation platform for the new Acceleration Module. The Edge TPU is designed to run TensorFlow Lite ML and AutoML Vision Edge models for high-speed ML inferencing on low-powered Arm Linux systems. The Edge TPU runs at 4 TOPS using 0.5 watts for each TOPS (2 TOPS per watt). On a side note, AutoML is a library of fast, high-accuracy custom image classification models.

The Coral Dev Board Mini has a dimension of 64 x 48mm. It comes with 2GB LPDDR3 and 8GB eMMC. It has a dual USB 2.0 Type-C ports and a micro-HDMI 1.4. The Mini provides 802.11ac with Bluetooth 5.0, 4-lane MIPI-DSI, and -CSI2 FFC connectors. It also has a 40-pin GPIO connector and a 3.5mm audio jack.

Specs for the Coral Dev Board Mini

  • Processor: MediaTek 8167s (4x Cortex-A35); Imagination PowerVR GE8300 GPU; separate Edge TPU AI chip via Coral Accelerator Module
  • Memory: 2GB LPDDR3; 8GB eMMC
  • Networking: 802.11ac with Bluetooth 5.0
  • Media I/O Port:
    • Micro-HDMI 1.4 port
    • 4-lane MIPI-DSI via FFC
    • 4-lane MIPI-CSI2 via FFC
    • 3.5mm audio jack
    • Digital PDM mic
    • 2-pin speaker terminal
  • Other I/O Port:
    • 2x USB 2.0 Type-C ports with power input support
    • 40-pin GPIO header
  • Dimensions: 64 x 48mm
  • OS Support: Mendel Linux (Debian based)

The Coral Dev Board Mini, Currently on preorders for $99.99 at Seeed and Google. Shipments are due from Seeed starting October 31.

New Study shows Rare form of Magnetic and Electrical Property in stack-twisted Graphene

Posted on by Rik

A group of scientists at Columbia University and the University of Washington has found unique electronic states along with an uncommon kind of magnetism, can develop in a three-layer graphene structure.

The work was inspired by current research studies of twisted monolayers or twisted bilayers of graphene, making up either 2 or 4 overall sheets. These results were discovered to treat a range of uncommon electronic states driven by strong interactions between electrons.

We wondered what would happen if we combined graphene monolayers and bilayers into a twisted three-layer system,

stated Cory Dean, a teacher of physics at Columbia University and among the paper’s senior authors.

We found that varying the number of graphene layers endows these composite materials with some exciting new properties that had not been seen before.

In addition to Dean, Assistant Professor Matthew Yankowitz and Professor Xiaodong Xu, both in the departments of physics and product science and engineering at the University of Washington, are senior authors on the work. Columbia college student Shaowen Chen, and University of Washington college student Minhao He is the paper’s co-lead authors.

Graphene layers stacked and twisted

To conduct the experiment, the scientists stacked a monolayer sheet of graphene onto a bilayer sheet and twisted them by about 1 degree. At temperature levels a couple of degrees over, the group observed a range of insulating states and which do not carry out electrical energy, but they are driven by strong interactions between electrons. They also discovered that these states can be managed by using an electrical field throughout the graphene sheets.

We learned that the direction of an applied electric field matters a lot,

stated Yankowitz, who is likewise a previous postdoctoral scientist in Dean’s group.

On the other hand, when the scientists pointed the electrical field towards the monolayer graphene sheet, the system looked like twisted bilayer graphene. But when they put the direction of the electrical field towards the bilayer graphene sheet, it resembled twisted double bilayer graphene—the four-layer structure.

Besides, the group found completely new magnetic statesin the twisted system. Unlike standard magnets, which are driven by a quantum mechanical residential or commercial property of electrons called “spin“. As they observed, a collective twisting movement of the electrons in the group’s three-layer structure carries the magnetism.

“This is really just the beginning,” as stated Yankowitz, because they are dealing with the experiments to improve and understand the basic properties of the brand-new states they found in this research.

More information can be found in this research paper.

Espressif Systems ESP32-S2-WROVER generic Wi-Fi MCU

Posted on by mixos

ESP32-S2-WROVER is a powerful, generic Wi-Fi MCU module that has a rich set of peripherals

ESP32-S2-WROVER is a powerful, generic Wi-Fi MCU module that has a rich set of peripherals. This module is an ideal choice for a wide variety of application scenarios relating to the Internet of Things (IoT), wearable electronics, and smart home.

At the core of this module is ESP32-S2, an Xtensa® 32-bit LX7 CPU that operates at up to 240 MHz. ESP32-S2 integrates a rich set of peripherals, including SPI, I2S, UART, I2C, LED PWM, ADC, DAC, touch sensor, temperature sensor, and up to 43 GPIOs. It also includes a full-speed USB On-The-Go (OTG) interface to enable USB communication.

Key features

  • Unparalleled security for your connected devices
  • Helps you build connected low-power devices
  • Build whatever you like with its rich IO capabilities
  • Cost-effective

Additional features

  • MCU:
    • Embedded ESP32-S2, with Xtensa® single-core 32-bit LX7 microprocessor, up to 240 MHz
    • 128 KB ROM
    • 320 KB SRAM
    • 16 KB SRAM in RTC
  • Hardware:
    • Interfaces: GPIO, SPI, LCD, UART, I2C, I2S, Camera interface, IR, pulse counter, LED PWM, USB OTG 1.1, ADC, DAC, touch sensor, temperature sensor
    • 4 MB SPI flash. (The module with 8 MB flash or 16 MB flash is available for a custom order.)
    • 2 MB PSRAM
    • Operating supply voltage: from 3.0 to 3.6 V
    • Operating temperature range: from -40 to 85 °C
  • Wi-Fi:
    • 802.11 b/g/n
    • Bit rate: 802.11n up to 150 Mbps
    • 0.4 μs guard interval support
    • Operating frequency range: 2412 to 2484 MHz

more information: https://www.espressif.com/sites/default/files/documentation/esp32-s2-wrover_esp32-s2-wrover-i_datasheet_en.pdf

Espressif Systems ESP32-WROOM-32E generic Wi-Fi+BT+Bluetooth LE MCU

Posted on by mixos
ESP32-WROOM-32E integrates ESP32-D0WD-V3 and has higher stability and security performance

ESP32-WROOM-32E integrates ESP32-D0WD-V3 and has higher stability and security performance. It is a powerful, generic Wi-Fi+BT+BLE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming, and MP3 decoding.

Key features

  • Extra security against Fault Injection Attacks
  • Robust & Compact Design
  • Ultra-low power consumption
  • Optimized Layout

Additional features

  • MCU:
    • ESP32-WROOM-32E contains a dual-core Xtensa® 32-bit LX6 MCU.
    • 448 KB of ROM for booting and core functions.
    • 520 KB of on-chip SRAM for data and instructions.
    • 8 KB of SRAM in RTC, which is called RTC FAST Memory and can be used for data storage; it is accessed by the main CPU during RTC Boot from the Deep-sleep mode.
    • 8 KB of SRAM in RTC, which is called RTC SLOW Memory and can be accessed by the co-processor during the Deep-sleep mode.
    • 1 Kbit of eFuse: 256 bits are used for the system (MAC address and chip configuration) and the remaining 768 bits are reserved for customer applications, including flash-encryption and chip-ID.
  • Hardware:
    • Module interfaces: SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC
    • 4 MB SPI flash
    • Operating supply voltage: 3.0 V to 3.6 V
    • Recommended operating temperature range: -40 °C to +85 °C
  • Wi-Fi:
    • Protocols: 802.11 b/g/n (802.11n up to 150 Mbps); A-MPDU and A-MSDU aggregation and 0.4 µs guard interval support
    • Frequency range: 2.4 GHz ~ 2.5 GHz
  • Bluetooth:
    • Protocols: Bluetooth v4.2 BR/EDR and BLE specification
    • Radio: NZIF receiver with –97 dBm sensitivity; Class-1, class-2, and class-3 transmitter; AFH
    • Audio: CVSD and SBC
  • Certification:
    • Bluetooth certification: BQB
    • Wi-Fi certification: Wi-Fi Alliance
    • RF certification: FCC/CE-RED/SRRC/IC/MIC
    • Green certification: REACH/RoHS

more information: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf

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