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iW-RainboW-G34S: i.MX 8M Mini Single Board Computer

Posted on 29 September, 2021 by mixos

Adding another feather to the extensive portfolio of NXP® i.MX-based Single board Computers, iWave recently launched the iW-RainboW-G34S, a single board computer based on NXP i.MX 8M Mini applications processor in a PICO-ITX form factor. iWave supports Linux 5.4.70, Ubuntu 20.04, Buildroot 2021.02 and Android 11 on the platform, supported with an extensive BSP support team and continuous updates.

The SBC is designed to achieve high-performance multimedia processing with low power in embedded consumer and industrial applications. Equipped with an Arm Cortex-A53 core running up to 1.6 GHz per core, the SBC achieves outstanding system performance while the Cortex-M4 performs low power, real time system monitoring.

Key Features

MX 8M Mini Q/QL/D/DL/S/SL CPU
Up to 4GB LPDDR4 & 128GB eMMC
Multi-OS Platform Support
Wi-Fi 802.11a/b/g/n/ac & BT 5.0
Wide range of high-speed interfaces
1000/100/10 Mbps Dual Ethernet
HDMI Output or LVDS Display
MIPI CSI Camera Connector

The i.MX 8M Mini processor consists of an integrated 2D/3D GPU and 1080 VPU, making the single board computer a perfect fit for high performance graphics and imaging applications such as video conferencing, HMI solutions and image analytics.

With a flexible memory configuration ranging from 1GB LPDDR4 to 4GB LPDDR4, with an expandable eMMC flash up to 128GB, provides customers the flexibility on the configuration. The SBC is feature rich with a host for multiple interfaces: USB2.0, SDIO, PCIe to Ethernet, MIPI_DSI to HDMI/LVDS and MIPI CSI Camera. The SBC is designed for connectivity applications with an on-board Wi-Fi & Bluetooth module. Built with an M.2 connector with optional PCIe support, you can plug in an external cellular connectivity modem.

Available in commercial and industrial temperature configuration, the iW-Rainbow-G34S is designed for mass production with iWave assuring product longevity of 10+ years. iWave complements the single board computer with thermal solutions such as heat sinks and heat spreaders to take care of the thermal characteristics, while also providing the option of an enclosure for the single board computer.

More information on the NXP i.MX 8M Mini SBC is available here.

You can find more information on our portfolio of i.MX System on Modules and Single Board Computers here. For further information or enquiries, you can reach us at mktg@iwavesystems.com

12W Constant-Current LED Driver with PWM Dimming – 12V DC@1A Input

This is a high-performance, adjustable constant current, and PWM dimmer project. It provides accurate output constant current and PWM control. The circuit regulates the current flowing through a LED/LED array to maintain the desired level of light output. The board consists of CAT4101 LED driver chip and LTC6992-1 PWM generator chip.

The CAT4101 is a constant-current sink driving a string of high-brightness LEDs up to 1A with a very low dropout of 0.5 V at full load. It requires no inductor, provides a low noise operation, and minimizes the number of components. The LED current is set by an external resistor connected to the R_SET pin. The LED pin is compatible with high voltage up to 25 V, allowing the driving of long strings of LEDs. The device ensures an accurate and regulated current in the LEDs independent of supply and LED forward voltage variation. The PWM/EN input allows the device shutdown and the LED brightness adjustment by using an external pulse width modulation (PWM) signal. The driver features thermal shutdown protection that becomes active whenever the die temperature exceeds 150C.

The LTC6992 is a silicon oscillator with an easy-to-use analog voltage-controlled pulse width modulation (PWM) capability. The LTC6992 is part of the Timer Blox® family of versatile silicon timing devices. A single resistor, RSET, programs the LTC6992’s internal master oscillator frequency. The output frequency is determined by this master oscillator and an internal frequency divider, NDIV, programmable to eight settings from 1 to 16384. Applying a voltage between 0V and 1V on the MOD pin sets the duty cycle. The four versions differ in their minimum/maximum duty cycle. Note that a minimum duty cycle limit of 0% or maximum duty cycle limit of 100% allows oscillations to stop at the extreme duty cycle settings.

Components and Function

PR1 Potentiometer: Duty Cycle Control, Range 0 to 100% (Dimmer Control)
PR2 Trimmer Potentiometer: Constant Current Control 100mA to 1000mA (0.1A-1Amp)
U2 LTC6992-1: Voltage to PWM converter Provides Duty Cycle 0 to 100%, Frequency 2.6Khz
U3 CAT4101: 1 Amp Constant-Current LED Driver with PWM Dimming
U1 LM78M05: 5V Regulator for logic Circuit

Applications

Architect Lighting
General Lighting
Horticulture Lighting
Photography Lighting

Features

Operating Power Supply 12V DC (Range 12-18V DC)
Load Current 1Amp (High Brightness Single LED or String of LED)
Load Current Adjustable 0.1A to 1Amp (100mA to 1000mA)
Dimming PWM Duty Cycle 0% to 100%
Zero Current Shutdown Mode
Thermal Shutdown Protection
Low Dropout 500mV at 1Amp
PCB Dimensions 81.44 x 35.24 mm

Schematic

Parts List

NO	QNTY.	REF.	DESC.	MANUFACTURER	SUPPLIER	SUPPLIER PART NO
1	1	CN1	2 PIN SCREW TERMINAL PITCH 5.08MM	PHOENIX	DIGIKEY	277-1247-ND
2	1	CN2	2 PIN SCREW TERMINAL PITCH 5.08MM	PHOENIX	DIGIKEY	277-1247-ND
3	1	C2	47uF or 10uF/25V SMD SIZE 1210	MURATA/YAGEO	DIGIKEY
4	2	C1,C3	0.1uF/50V SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
5	1	PR1	5K POTENTIOMTER	BOURNS	DIGIKEY	118-3362U-1-502RLFCT-ND
6	1	PR2	5K TRIMMER POT	BOURNS	DIGIKEY	PDB181-K420K-502B-ND
7	1	R1	20K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
8	1	R2	1K 5% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
9	1	R3	1M 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
10	1	R4	300K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
11	1	R5	280K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
12	1	R6	510E 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
13	1	U1	MC78M05	ON SEMI	DIGIKEY	MC78M05CDTGOS-ND
14	1	U2	LTC6992-1	ANALOG	DIGIKEY	161-LTC6992IS6-1
15	1	U3	CAT4101	ONSEMI	WorldWayElec	CAT4101TV-3679303

Connections

Gerber View

Photos

Video

CAT4101 Datasheet

New T-configuration MOSFET Relay Modules with 1 pA Low Leakage Current

Posted on 28 September, 2021 by mixos

OMRON Electronic Components Europe has introduced new high voltage and high current versions of its T-configuration MOSFET relay modules. The new G3VM T-modules with mechanical and MOSFET relay technology provides an accurate, compact, and long-lasting switching solution with no mechanical contacts.

The new OMRON G3VM-61MT and G3VM-101MT join high isolation G3VM-21MT and feature a load current of 800 mA and 550mA respectively. The electrical load characteristics of the new devices are 800 mA, 60 V for the G3VM-61MT and 550 mA, and 100 V for the G3VM-101MT. The G3VM-21MT features high isolation performance of less than – 30dB at 1 GHz and is rated at 200 mA, 20 V. The unique T- circuit structure that sends most leakage current to the ground leads to the exceptionally low leakage current of just 1 pA or less.

Housed in a compact 5 mm x 3.75 mm x 2.7 mm package, these new modules are surface mounted and are offered in SPST with no configuration required. The devices in the series support accurate measurements in all types of test equipment where mechanical relays have previously been preferred due to their low leakage current.

more information: http://components.omron.eu/Product-details/G3VM-series

KLS Series Illuminated Pushbutton

Posted on 28 September, 202128 September, 2021 by mixos

C&K’s pushbutton switch has audible feedback and provides the status of the switches’ positioning

C&K’s KLS series pushbutton switch meets market requirements on haptic and sound with clear “click” sound feedback. It provides the status of the switches’ positioning (on/off) and a clear indication of its functioning.

The KLS pushbutton is available as SPDT and DPDT configurations and with a higher rating for broader application needs. KLS also offers momentary and locking versions for easy integration into customer designs, along with a choice of five different illuminated LED color options in either of its switch positions. The KLS caps can be provided with a wide choice of standard marked or engraved logos or customized to match the customers’ specific needs.

Features

Bright LED colors
Momentary or lock version
Snap-action provides positive feedback
1,000,000 life cycle

Applications

Professional audio/video systems
Instrumentation
Control panels
Vending machines

more information: https://www.ckswitches.com/products/switches/product-details/Pushbutton/KLS/

Arduino, Bosch team for smallest AI sensor board

Posted on 28 September, 202118 October, 2021 by mixos

Arduino’s smallest board to date uses sensors from Bosch Sensortec for the Nicla Sense ME. [www.eenewseurope.com]

Arduino Pro and Bosch Sensortec have partnered on a small sensor board. The Nicla Sense ME is Arduino’s smallest board to date and uses the latest generation Bosch sensors technology on the smallest form factor yet for sensing and intelligence at the edge.

The 22.86 x 22.86 mm board has a motion sensor with nine degrees of freedom (9DoF) and a 4DoF environmental sensor with machine learning. It can be powered by a battery and used as a complete standalone board, or attached to an Arduino board to expand its capabilities.

The €59 Nicla Sense ME board comes with Bosch Sensortec’s BHI260AP AI sensor system with integrated motion sensor, BMM150 magnetometer, BMP390 pressure sensor, and BME688 4-in-1 gas sensor with AI and integrated high-linearity and high-accuracy pressure, humidity, and temperature sensors.

“This is a tiny board with a really great mix of sensors combined with high computational power, opening up a whole new range of applications leveraging on sensor fusion. Smart building automation, mobile and wearable devices, industrial and professional equipment are key targets,” said Adriano Chinello, Head of Arduino Pro.

The Nicla Sense board has already been included in a starter kit provided to all teams participating in the Bosch Sensortec’s 2021 IoT Innovation Challenge. This is an online competition where students combine hardware and software tools to develop fascinating sensor-based IoT solutions.

“The Arduino Nicla Sense ME combines the hardware and software know-how in one platform and ensures high-speed time-to-market for our users. Bosch Sensortec’s self-learning AI smart motion sensor, the environmental sensor with AI capabilities and all the other sensors allow a broad range of applications to address the different segments of the IoT market. This way developing intelligent, low-power and scalable edge sensing applications is easier than ever before,” said Dr. Stefan Finkbeiner, CEO of Bosch Sensortec.

The Arduino Nicla Sense ME is now available for €59/US$70.

more information: www.arduino.cc/pro/hardware/product/nicla-sense-me

E-PEAS cooperates with TCT on energy harvesting solution

Posted on 28 September, 202128 September, 2021 by mixos

Cooperation between E-PEAS and TCT has resulted in an energy harvesting solution for three-phase electricity cables designed to support IOT.

Building on the existing technology relationship between e-peas and TCT, the two companies have made another major advance in the harvesting of energy from power lines. These partners already successfully demonstrated a solution that can extract energy from single-phase wire. Now they have expanded on this, by developing hardware that can be used with three-phase cabling.

The new multifaceted energy harvesting solution is unique to the market. It consists of an e-peas AEM30940 high-performance power management IC (PMIC) accompanied by a TCT current transformer featuring one of the company’s proprietary high-permeability ferromagnetic cores. The current transformer is clipped around the cable. The AC current it extracts via induction from the cable is subsequently converted into a DC current using rectification circuitry, and the AEM30940 can then utilize this to power the electronic system it is connected to.

There are countless IoT-related applications that will benefit from this latest e-peas/TCT innovation, allowing energy-autonomous sensing and communication equipment to be deployed anywhere that there is nearby AC electricity distribution infrastructure. The need to send out engineers to replace batteries is eliminated, with operational expense reductions being derived from this. Among the opportunities that this solution will be able to address are industrial control/monitoring, building automation, smart grid, environment monitoring, etc.

e-peas and TCT are demonstrating their energy harvesting solution for three-phase cabling at the SIDO Lyon conference on Stand W308. This uses the hardware just described to power a system comprising a light sensor, humidity sensor, temperature sensor, and a wireless transceiver IC, as well as covering real-time measurement of the current passing through the cable. Further demonstrations will be conducted at SIDO Paris (9-10 November, stand F20).

“Our company has been working closely with e-peas for just over two years, and what we have been able to achieve will have major implications for the emerging IoT sector,” explains Alexandre Decombejean, Sales Manager at TCT. “The low cold-start capabilities of e-peas PMICs really provide the differentiation that we needed for this energy harvesting arrangement. Other devices would mean that too much of the available energy would simply be wasted.”

“The new three-phase cable energy harvesting hardware we are now demonstrating will give us access to a broad selection of different deployment possibilities, allowing battery-less operation to be implemented across a multitude of customer applications,” adds Christian Ferrier, e-peas’ CMO. “We envisage this solution being pivotal in enabling widespread implementation of smart factory and smart city projects around the world.”

Block Diagram

more information:

Maxim Integrated MAX31889 I2C Temperature Sensor

Posted on 28 September, 2021 by mixos

Maxim Integrated MAX31889 I²C Temperature Sensor provides ±0.25°C accuracy from -20°C to +105°C and ±0.65°C accuracy from -40°C to +125°C. The MAX31889 operates from a 1.7V to 3.6V supply voltage and uses a standard I²C serial interface to communicate with a host controller. Two GPIO pins are available. GPIO1 can be configured to trigger a temperature conversion, while GPIO0 can be configured to generate an interrupt for selectable status bits.

The MAX31889 includes a 32-word FIFO for the temperature data and also includes high and low threshold digital temperature alarms. The device is available in a 2mm x 2mm x 0.8mm, 6-pin, µDFN package.

Features

High accuracy and precision
- ±0.25°C accuracy from -20°C to +105°C
- ±0.65°C accuracy from -40°C to +125°C
Low power for long battery life
- 7V to 3.6V operating voltage
- 68μA operating current during measurement
- 55μA standby current
Safety and compliance
- High and low-temperature alarms
I²C digital interface
- Configurable convert temperature input pin
- Configurable interrupt output pin
- 32-word FIFO for temperature data
- 4 I²C addresses are available
- Unique ROM IDs allow the device to be NIST traceable
Small size
- 2mm x 2mm x 0.8mm, 6-pin μDFN

Block Diagram

Application Circuit

more information: https://www.maximintegrated.com/en/products/sensors/MAX31889.html

Maxim Integrated MAX31329 I2C Real-Time Clock (RTC)

Posted on 28 September, 2021 by mixos

Maxim Integrated MAX31329 I²C Real-Time Clock (RTC) is a low-current timekeeping device that provides timekeeping current in nanoamps (nA), thus extending battery life. This device incorporates an integrated 32.768kHz crystal, that eliminates the need for an external crystal. The MAX31329 RTC features one digital Schmitt trigger input (DIN) and generates an interrupt output on a falling or rising edge of this digital input.

The MAX31329 RTC maintains a clock/calendar that provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either 24-hour or 12-hour format and the RTC also includes a clock input for synchronization. The device is available in a lead (Pb) free/RoHS compliant, 10-pin, 5mm x 5mm LGA package. The MAX31329 RTC device operates from -40°C to 85°C extended temperature range. Typical applications include medical devices, portable instruments, factory automation, and IoT devices.

Features

Increases battery life:
- 240nA timekeeping current
- Trickle charger for external supercapacitor or rechargeable battery
Provides flexible configurability:
- Schmitt trigger input for event detection
- Programmable square-wave output for clock monitoring
- Two interrupt pins for multiple wakeup configurations
- Clock input pin for external clock synchronization
Saves board space:
- Integrated crystal and load capacitors tuned to ±5ppm typical clock accuracy
- 5mm x 5mm, 10-Pin LGA package
Value-added features for Ease-of-Use:
- 1.6V to 5.5V operating voltage range
- Two time-of-day alarms
- Countdown timer with repeat and pause functions
- 64-Byte RAM for user data storage
Integrated protection:
- Power-on reset for a default configuration
- Automatic switchover to backup battery or supercapacitor on power-fail
- Lockup-free operation with bus timeout

Block Diagram

Application Circuit

more information: https://www.maximintegrated.com/en/products/analog/MAX31329.html

NJR (New Japan Radio) NJG1817ME4-TE1 10W High Power SPDT Switch

Posted on 28 September, 202128 September, 2021 by mixos

NJR (New Japan Radio) NJG1817ME4-TE1 10W High Power SPDT Switch offers a high power handling capability of 40dBm. This SPDT switch also offers high linearity and low insertion loss up to 6GHz. The high-power SPDT switch features a high switching speed that is enough capable of 5G communications. This high-power SPDT switch operates from 2V to 5V of control voltage range and 150ns typical high switching speed. The NJG1817ME4 switch is RoHS compliant and halogen-free with MSL1. This high-power SPDT switch is suitable in commercial radio applications and transmits/receive switching, antenna switching, and other switching applications.

Features

High power handling capability of 40dBm
High switching speed
The NJG1817ME4 switch is RoHS compliant and halogen-free with MSL1

Specifications

2V to 5V control voltage range
150ns typical high switching speed
Low insertion loss:
- 0.35dB_typ@3.85GHz, V_CTL(H)=3.3V
- 0.40dB_typ @4.7GHz, V_CTL(H)=3.3V
- 0.45dB_typ @6GHz, V_CTL(H)=3.3V
High insertion loss:
- 27dB_typ @3.85GHz, V_CTL(H)=3.3V
- 27dB_typ @4.7GHz, V_CTL(H)=3.3V
- 25dB_typ @6GHz, V_CTL(H)=3.3V

Application Circuit

more information: https://www.njr.com/electronic_device/PDF/NJG1817ME4_E.pdf

BOXER-6643-TGU: Compact Industrial System Powered by 11th Generation Intel® Core™

Posted on 28 September, 2021 by mixos

AAEON, an industry leader in embedded solutions, introduces the BOXER-6643-TGU compact industrial system. With rugged construction, the system delivers the performance and innovative technologies of the 11th Generation Intel® Core™ U processors (formerly Tiger Lake) to applications in tough environments, providing wide operating temperature range and 5G support, to power embedded controller and Industrial IoT (IIoT) gateway applications.

The BOXER-6643-TGU is powered by the 11th Generation Intel Core U processors, delivering greater performance over previous generations, with innovative Intel technologies ensuring more accurate, secure data processing. With up to 64 GB of memory, the system allows users to utilize the full extent of the system’s processing capabilities, and with the Intel® Iris® Xe embedded graphics, users can leverage more powerful GPU processing to power AI and Edge Computing industrial applications. With dual HDMI ports, the system can also support 4K high-definition video on two monitors, perfect for powering digital signage.

The BOXER-6643-TGU features the latest and fastest I/O specifications, providing higher bandwidth for data intensive applications. Featuring two LAN ports, one 2.5 Gbps and one 1.0 Gbps, the system ensures quick communication for real-time processing and control. The system also features expansion slots supporting wireless networks, including Wi-Fi, 4G and 5G cellular communication. Other I/O features include four USB3.2 Gen 2 slots, dual COM ports and 8-channel DIO.

The BOXER-6643-TGU offers a flexible range of storage options including mSATA and NVMe, as well as a SATA III port connected directly to the board, eliminating cables that may come loose in high-vibration environments. The 2.5” SATA drive is easy to install and maintain, with a slide-out tray located on the side of the system. Additionally, two easy-access panels on the bottom of the system allows users to quickly add on or upgrade expansion cards and memory modules.

Built to deploy anywhere, the BOXER-6643-TGU is designed with a compact form factor and rugged construction. Fan-less design keeps dust and contaminants out, while also delivering an operating temperature range of -20°C to 60°C. With a cable-free design, the system is also suitable for high-vibration environments.

“The BOXER-6643-TGU delivers great performance and value, offering the latest Intel embedded CPUs in a platform that is both rugged and meets the requirements of our clients,” said Raven Hsu, Product Manager with AAEON’s System Platform Division. “With a tough, compact construction and high-performance processor, the BOXER-6643-TGU helps meet the computing needs of embedded applications, while also offering flexibility and scalability to bring AI to industrial operations.”

Later this year, AAEON will be announcing and releasing the ultra-slim BOXER-6450-TGU, bringing the same innovative 11th Generation Intel Core U processors to a system that is even more compact and budget-friendly.