ESP-WROOM-32 is one of the most commonly ESP32 WiFi + Bluetooth module, and does the job for many applications. However, it only includes 4MB (32Mbit) flash, and no external PSRAM, while Espressif ESP32 chip itself supports up to 128 Mbit (16MB) NOR flash and up to 32Mbit (4MB) PSRAM, so for applications demanding more resources (e.g. MicroPython), or for initial development it would good to have a module maxing out memory and storage capabilities of the chip. Analog Lamb ALB32-WROVER does exactly that with 32 Mbit PSRAM, and 32 to 128 Mbit flash, in a form factor compatible with ESP-WROOM-32 module. ALB32-WROVER specifications: WiSoC – Espressif ESP32 (Rev0?) Wi-Fi and Bluetooth combo chip External Memory – 32Mb PSRAM Storage – 32, 64, or 128Mbit Flash Dimensions – 18 x 25 x 3 mm Compatible with ESP-WROOM-32, except for GPIO16 & 17 (used for PSRAM) It’s very odd the company claims the […]
Hologram Introduces Global IoT eSIM Chip
Hologram provides a SIM card for IoT projects that can be used in most of the world, and I own a developer SIM card that’s very convenient for reviews and evaluation with 10MB free data per month, which I used for example in a recent 3G HAT board for Raspberry Pi. The company also manage network by software, so they were on of the first SIM providers to enable 4G LTE Cat M1 and NB-IoT without changing anything to the SIM card itself. Since everything is programmable, not tied to any specific service provider, the SIM card form factors may not be the most convenient, and instead for a lower form factor, and possibly better reliability Hologram eSIM based on MFF2 form factor may be a better solution for new projects. The chip measures just 6x5mm with 0.67mm thickness, and would be soldered on the board of your cellular IoT […]
Nutaq PicoLTE IoT Kit Allows NB-IoT and LTE Cat M1 Devices Testing Anywhere
If you’ve been following cellular IoT news you must have read plenty of announced about NB-IoT and LTE Cat M1 (eMTC) hardware platforms bring LTE connectivity at lower power and somewhat lower cost than existing 3GPP networks. That’s all good, and you may have decided to go ahead with a commercial project, except none of the Telco are providing LTE IoT connectivity in your area just yet, or if it does, you may also want to test your device in bands not allowed/supported in your country (at a permitted power level). If that’s the case, Nutaq PicoLTE IoT Kit should help as an LTE NarrowBand & Cat M test measurement platform for IoT that can test NB-IoT and Cat-M1 devices in all frequency bands. Nutaq PICOLTE IoT kit key features: Supports M1 & NB-IoT devices Proven compatibility with M1 & NB-IoT devices from over 5 manufacturers Test multiple devices simultaneously […]
NXP Unveils A71CH Secure Element Chip for Secure Peer-to-Peer or Cloud Connections
The industry clearly has an issue at hand with the security of the Internet of Things, and the problem is complex as some devices are easily accessible due to bad configuration (e.g. default username/password), while others may have security flaws at various levels of the software stack from the low level bootloaders to the operating systems, and applications. Nowadays, devices also need to be upgradeable, and communicate with the cloud, and that introduces other attack vectors in case malignant firmware is installed instead, or a man-in-the-middle attack occurs. While some people may claim security can be achieved by software only, we are seeing security evolving towards combined software and hardware solutions, for example with Arm Trustzone built into SoCs, but some companies are also introducing Secure Element chip, which Samsung has already done and integrated into their Artik modules to secure data from the hardware to the cloud. NXP has […]
Avnet Silica NB-IoT Sensor Shield Works with mbed OS 5, STM32 Nucleo Board
If for some reasons, none of the many NB-IoT boards launched recently suit your needs, there’s yet another option with Avnet Silica NB-IoT sensor shield, that supports – despite the name – also supports LTE Cat M1 (eMTC) beside NB-IoT (LTE Cat NB1), and comes with Arduino headers, as well as a Pmod connector. The board relies on Quectel BG96 module, and can be controlled with Arm mbed OS 5 when connected to STM32 Nucleo board. NB-IoT Sensor Shield specifications: Cellular Module – Quectel BG96 LPWA Module Multi Modes: Cat.M1, Cat.NB1, EGPRS Global bands Cat M1/NB1: B1 B2 B3 B4 B5 B8 B12 B13 B18 B19 B20 B26 B28 B39 (B39 for Cat M1 only) EGPRS: 850/900/1800/1900 MHz Voice Over LTE support (M1 only) – PCM digital audio interface SIM card holder (also optional embedded SIM) Optional GNSS – GPS, GLONASS, BeiDou/Compass, Galileo, QZSS Expansion – Arduino headers, Pmod connector […]
Silicon Labs WF200 WiFi Transceivers & WFM200 WiFi Modules are Designed for Battery Powered Devices
When it comes to power consumption, WiFi is not the best wireless standard around, and even the most power efficient WiFi SoCs/modules consume several times the power required for Bluetooth LE Tx or Rx. Yet we still have plenty of battery powered devices relying on WiFi, so companies are working on improving efficiency, and Silicon Labs has recently announced the WF200 transceivers and WFM200 modules that support 2.4 GHz 802.11 b/g/n Wi-Fi and are said to slash power consumption in half. WF200 / WFM200 highlights: Low transmit (Tx: 138 mA) and receive (Rx: 48 mA) power 200 µA average Wi-Fi power consumption (DTIM = 3) Link budget of 115 dBm for long-range Wi-Fi transmissions Excellent antenna diversity and wireless coexistence in crowded 2.4 GHz environments Security – Secure boot and host interface, hardware cryptography acceleration supporting AES, PKE and TRNG Packages – 4 mm x 4 mm QFN32 transceiver and […]
UP Core Plus Board To Support AI Plus FPGA and AI Net Ethernet Expansion Boards
We’ve just written about UP AI Core mPCIe card part of the new AI Edge family from UP Board, but other members will soon be released including UP Core Plus board, that builds upon UP Core Cherry Trail board launched last year, with a choice of Intel Atom x5/x7, and Celeron/Pentium Apollo Lake processors. The form factor is different, but just like the first UP Core board, the Core Plus board supports expansion boards via docking connectors such as the Net Plus Ethernet expansion, and the AI Plus expansion board with Intel Cyclone 10 GX FPGA. UP Core Plus specifications: SoC (one or the other) Intel Atom x5-E3940 (2M Cache, up to 2.00 GHz) Intel Atom x7-E3950 (2M Cache, up to 2.00 GHz) Intel Celeron N3350 (2M Cache, up to 2.50 GHz) Intel Pentium N4200 (2M Cache, up to 2.50 GHz) System Memory – 2GB, 4GB or 8GB on-board DDR4L-2400 […]
Eagleye 530s Board Features Samsung Artik 530s IoT Module, Leverages Raspberry Pi Form Factor
Samsung Artik 530 is a module designed for the Internet of Things based on a quad core Arm Cortex A9 processor, and supporting Ethernet, dual band WiFi, Bluetooth 4.2, and 802.15.4/Zigbee/Thread connectivity, as well as exposing display and camera interfaces, and of course various I/Os. The module was launched about one year ago with a developer kit that cost $189 and up, but Samsung has now worked with Seeed Studio to launch a cheaper developer board – called Eagleye – based on the secure version of the module (Artik 530s) and mostly following Raspberry Pi form factor in order to take advantage of its hardware ecosystem. Eagleye 530s board specifications: SoC – Unnamed quad core Arm Cortex A9 processor @ 1.2GHz with 3D graphics accelerator System Memory – 1GB DDR3 Storage – 4GB eMMC flash, SD card slot Connectivity 802.11a/b/g/n dual band SISO (2.4G/5G) Bluetooth 4.2(BLE+Classic) Zigbee/Thread 802.15.4 Gigabit Ethernet […]