Author: Sayantan Nandy

Sayantan Nandy, an electronics engineer with over four years of hands-on experience in PCB design, circuit development and power electronics, is proficient in EAGLE CAD, Ki-Cad, and Altium. He has a proven track record of delivering efficient and effective systems. His expertise extends from R&D, and prototyping to production support, making him a valuable asset to any engineering team.
Posted on by Sayantan Nandy - No Comments on SenseCAP Indicator – An ESP32-S3 and RP2040-based Meshtastic LoRa device with a 4-inch touchscreen display

SenseCAP Indicator – An ESP32-S3 and RP2040-based Meshtastic LoRa device with a 4-inch touchscreen display

ESP32S3 Meshtastic LoRa Indicator

The SenseCAP Indicator is a 4-inch capacitive touchscreen device designed for IoT connectivity and Meshtastic applications powered by Espressif Systems ESP32-S3 and Raspberry Pi RP2040 microcontrollers. It supports Wi-Fi (802.11b/g/n) and Bluetooth 5.0 LE connectivity, as well as LoRa using the Semtech SX1262 chip. The device also provides Grove connectors for expansion and a microSD slot supporting up to 32GB. Preloaded with Meshtastic firmware, the SenseCap Indicator is ready to function as a Meshtastic desktop or car node and can be reconfigured into a LoRaWAN Single-Channel Gateway. It features a 3.95-inch RGB touchscreen with 480×480 resolution, which is larger than most other Meshtastic solutions we’ve covered. Previously, we reviewed the SenseCAP Indicator D1Pro, which shares many features with the SenseCAP Indicator. However, the D1Pro integrates tVOC and CO2 sensors, along with an external Grove AHT20 TH sensor for precise temperature and humidity measurements. With real-time air quality monitoring from the […]

Posted on by Sayantan Nandy - No Comments on reComputer R1113-10 industrial IoT gateway offers isolated RS485, RS232, DI, DO, and dual Gigabit Ethernet

reComputer R1113-10 industrial IoT gateway offers isolated RS485, RS232, DI, DO, and dual Gigabit Ethernet

reComputer R1113-10 industrial IoT gateway

Seeed Studio has launched the reComputer R1100 series industrial IoT gateway family based on Raspberry Pi CM4. The first model, the reComputer R1113-10, is powered by a Raspberry Pi Compute Module 4 module with 2GB RAM and 8GB eMMC storage. It includes two isolated RS485 ports, two isolated RS232 ports, DI and DO interfaces, and twelve LED indicators. Additional connectivity options include dual Gigabit Ethernet ports, Wi-Fi, Bluetooth 5.0, LoRa, 4G LTE, and Zigbee. The device also features two USB-A 2.0 ports, a USB-C 2.0 port for OS flashing, an HDMI 2.0 output, and a MicroSD card slot. There are many such industrial IoT gateways based on Raspberry Pi CM4 and other SoMs or SoCs on the market, and we covered a bunch including the Compulab IOT-DIN-IMX8PLUS, Digi IX40, Dusun DSGW-380, Cytron IRIV PiControl, and Robustel EG5101 and EG5200, among others, each with their own unique set of features. reComputer […]

Posted on by Sayantan Nandy - No Comments on u-blox MAYA-W4 tri-radio IoT module features NXP IW610 chipset with Wi-Fi 6, Bluetooth 5.4, and 802.15.4 radios

u-blox MAYA-W4 tri-radio IoT module features NXP IW610 chipset with Wi-Fi 6, Bluetooth 5.4, and 802.15.4 radios

MAYA-W4 Wi Fi 6 Module

Last year, we covered the u-blox MAYA-W3 module, which was based on the Infineon AIROC CYW5551x chipset and utilized separate chipsets for 2.4 GHz, 5 GHz, and 6 GHz frequencies. Now, u-blox has introduced the MAYA-W4 series, a host-based Wi-Fi 6, Bluetooth 5.4, and 802.15.4 module built on the NXP IW610 chipset. Designed for industrial and commercial applications such as building automation, energy management, smart homes, and healthcare, the MAYA-W4 series supports SISO Wi-Fi 6 with a 20 MHz channel width, ensuring reliable performance in dense network environments. These modules can function as access points, stations, P2P devices, or in mixed modes. The MAYA-W4 modules are compatible with the Matter protocol over Thread and Wi-Fi, facilitating seamless integration across ecosystems. With a compact size of 10.4 x 14.3 mm, these modules rank among the smallest Wi-Fi 6 SMD modules and are available with integrated antennas or U.FL connectors. Rigorous testing […]

Posted on by Sayantan Nandy - No Comments on u-blox SARA-R10001DE LTE Cat 1bis Module integrates an eSIM with Multi-IMSI and eUICC support

u-blox SARA-R10001DE LTE Cat 1bis Module integrates an eSIM with Multi-IMSI and eUICC support

SARA-R10001DE top and bottom

u-blox has introduced the SARA-R10001DE, an LTE Cat 1bis module with integrated eSIM featuring multi-IMSI technology and eUICC functionality. The module is pre-provisioned with Wireless Logic’s Conexa IoT Network SIM profiles for global IoT deployments. The eSIM supports OTA using Remote SIM Provisioning, allowing the module to switch between multiple stored SIM profiles to connect to the best available network. Multi-IMSI technology allows eSIMs to store multiple International Mobile Subscriber Identity (IMSI) profiles, enabling dynamic network switching for uninterrupted connectivity. eUICC functionality, based on the GSMA standard, facilitates OTA updates and profile management, simplifying operator switching and ensuring global compliance. Although SARA-R10001DE is u-blox’s first LTE Cat 1bis module with an embedded SIM (eSIM), we previously covered the u-blox LEXI-R10 LTE Cat 1bis module and associated evaluation kit, as well as Cavli C17QS Cat 1bis module built around the Qualcomm QCX217 microcontroller. u-blox SARA-R10001DE module specifications: LTE module – SARA-R10001DE […]

Posted on by Sayantan Nandy - No Comments on Clipper HAT Mini – A Raspberry Pi 4G LTE pHAT with Qwiic/STEMMA QT connector

Clipper HAT Mini – A Raspberry Pi 4G LTE pHAT with Qwiic/STEMMA QT connector

pimoroni LTE 4G for Raspberry Pi Clipper HAT Mini

Pimoroni Clipper HAT Mini – also called “CLIPPER LTE Mini HAT” – is a Raspberry Pi 4G LTE pHAT that can use mobile data for remote projects where WiFi connectivity is unreliable or unavailable. The HAT is built around a SIMCom A7683E LTE Cat 1 modem with support for frequency bands B1/B3/B5/B7/B8/B20/B28, offering uplink speeds up to 5 Mbps and downlink speeds up to 10 Mbps. Other key features of this HAT include a SIM card slot, an SMA antenna connector (antenna sold separately), two user buttons, indicator LEDs, and a Qwiic/STEMMA QT connector for I2C modules. The board is designed to attach to Raspberry Pi (Zero) via a pre-soldered socket header and includes introductory global data coverage via a 1NCE SIM card. These features make this device suitable for IoT projects, mobile data collection, and remote-controlled devices in varied environments. Raspberry Pi LTE 4G HAT Specifications Compatibility – Supports […]

Posted on by Sayantan Nandy - 3 Comments on nRF54L15 DK: A Development Kit for nRF54L15, nRF54L10, and nRF54L05 SoCs with Bluetooth, Thread, and Zigbee

nRF54L15 DK: A Development Kit for nRF54L15, nRF54L10, and nRF54L05 SoCs with Bluetooth, Thread, and Zigbee

nRF54L15 development kit

The nRF54L15 DK is a development kit designed to evaluate the wireless SoCs of the nRF54L15, nRF54L10, and nRF54L05 wireless SoCs. These SoCs support multiple wireless protocols, including Bluetooth Low Energy, Bluetooth Mesh, Matter, Thread, Zigbee, and 2.4GHz proprietary protocols, with data rates of up to 4Mbps. The kit integrates the nRF54L15 SoC and provides emulation capabilities for the nRF54L10 and nRF54L05, enabling flexible testing and development across the nRF54L Series. The nRF54L series SoCs differ in memory configurations to meet various application requirements. The nRF54L15 includes 1.5 MB of non-volatile memory (NVM) and 256 KB of RAM for high-performance applications. The nRF54L10 features 1.0 MB of NVM and 192 KB of RAM for mid-range use cases, while the nRF54L05 offers 0.5 MB of NVM and 96 KB of RAM for entry-level designs requiring fewer resources. The kit is supported by the nRF Connect SDK and tools, providing access to […]

Posted on by Sayantan Nandy - 2 Comments on SparkFun introduces Quadband GNSS RTK Breakout board with Quectel LG290P module for high-precision navigation

SparkFun introduces Quadband GNSS RTK Breakout board with Quectel LG290P module for high-precision navigation

SparkFun Quadband GNSS RTK Breakout

SparkFun has released the Quadband GNSS RTK Breakout featuring the Quectel LG290P module designed for high-precision real-time kinematic (RTK) applications. It supports GPS, GLONASS, Galileo, BDS, QZSS, and NavIC constellations, with the ability to simultaneously receive signals from L1, L2, L5, and L6/E6 frequency bands. The module includes support for SBAS augmentation systems (e.g., WAAS, EGNOS, GAGAN) and PPP services (e.g., BDS PPP-B2b, QZSS CLAS), delivering reliable positioning with fast convergence times for precision navigation tasks. The breakout board offers a compact design (43.2 x 43.2mm) and multiple expansion options including 24 PTH pins, dual 4-pin JST Qwiic connectors, three UART interfaces, a USB-C connector, and additional PTH pins for BlueSMiRF/Serial-to-UART. With its RTK support and advanced GNSS capabilities, the board is ideal for applications requiring high-accuracy positioning and robust navigation performance. Previously, we covered several GNSS boards including the SparkFun GNSS L1/L5, u-blox EVK-LEXI-R10, and Conexio Stratus Pro and […]

Posted on by Sayantan Nandy - 1 Comment on AAEON FWS-2370 network appliance features Intel Atom Parker Ridge/Snow Ridge processor, up to 14 Ethernet ports

AAEON FWS-2370 network appliance features Intel Atom Parker Ridge/Snow Ridge processor, up to 14 Ethernet ports

FWS-2370 Front panel

The FWS-2370 is a network appliance powered by the Intel Atom C Series “Parker Ridge” or P Series “Snow Ridge” processor family (Atom C5315 by default), tailored for SD-WAN and uCPE applications. It incorporates Intel QAT and Intel VT-d/VT-x to accelerate encryption, decryption, and virtualization tasks. The system supports up to 64GB of DDR4 memory (ECC/Non-ECC) through dual SODIMM slots and offers onboard eMMC storage options up to 128 GB. Networking capabilities include four 2.5GbE RJ-45 ports (Intel I226-V), four gigabit Ethernet RJ-45 ports (Marvell 88E1543), and four 10GbE SFP+ ports, with optional PoE af/at support for enhanced deployment flexibility. For connectivity, the FWS-2370 features two M.2 B-Key slots for 5G/LTE modules, one M.2 E-Key slot for Wi-Fi, and two Mini Card slots with SIM support. This expansive configuration ensures seamless wired and wireless networking. Designed to manage high data throughput and multi-threaded workloads, the FWS-2370 is ideal for applications […]