This versatile charger has been designed to charge Lithium Coin Cell Rechargeable CR2016/CR2025/CR2032 Coin Batteries. Just insert the battery to the holder, and plug in to any USB port to recharge, D3 Power LED, D1 LED indicates the charge cycle. The board has been designed to use dual chips, either BQ21040 IC from Texas instruments or MCP73831 from Microchip […]
LITHIUM COIN CELL CHARGER FOR RECHARGEABLE COIN BATTERIES Read More »
Tiny device features lower input power to reduce equipment size and power consumption Toshiba Electronics Europe (“Toshiba”) announces the availability of a new voltage driven photorelay with a tiny S-VSON4T package and reduced input power dissipation. The new product, designated TLP3407SR, features a maximum LED current of just 1 mA at the input, which represents a reduction to
TOSHIBA LAUNCHES VOLTAGE DRIVE PHOTORELAY WITH A TINY 2.9MM2 FOOTPRINT Read More »
Many years ago (September 2009) I made a simple bench power supply using an LT1083 7.5A linear regulator with adjustable output voltage designed to be used with a 19.5V 3.42A laptop power supply. It still works fine after years of abuse, but my choice of output power connectors was poor (3 pin headers, the sort
LAPTOP BENCH POWER SUPPLY WITH FAN CONTROLLER Read More »
Specs for Intel’s NUC 8 rugged mini PC and 3.5-inch dashboard have been released. The fanless NUC 8, code-named Chaco Canyon, runs Windows or Linux on low-power (6W TDP) dual-core and 1.1 GHz/2.4GHz Celeron N3350 from Apollo Lake with dual HDMI ports, 4GB RAM, soldered down 64GB eMMC, and M.2 22 x 80 key M slot for
INTEL’S NEW FANLESS APOLLO BASED NUC MINI-PC AND SBC RELEASED Read More »
Note: updated with new firmware, a schematic and a tips for a programmer. A couple of years I embarked on my own home automation project. It started off by building a server controlled 433 MHz transmitter build with an Arduino to switch lots of cheap PT2262 based remote switches. Later I added an Arduino based
MQTT and Wifi Powered Mailbox Flag Read More »
Designed To Support Unattended Operation, IP65+, And Passive Cooling Have you ever tried designing a truly embedded x86-based system? We have, and it was a journey full of unexpected pitfalls. Consider the importance of unattended operation, including resilience in the face of power failures and power voltage fluctuation. Need support for different CPU models? A
XCOM – COMPACT, EMBEDDED X86 PLATFORM FOR SDR AND OTHER APPLICATIONS Read More »
I have always wanted to build a fairly capable LCR meter that could cope with real world use in my own personal lab. This would mean reasonably good accuracy across a wide range of L, C and R. Fortunately, I got the time to do just that this year in the 3rd year Instrumentation module
LOW COST HIGH ACCURACY STM32 FFT LCR METER Read More »
The MAXREFDES1048 synchronous step-down dc-dc converter reference design from Maxim Integrated Products is based on the MAX17504, a high-efficiency, high-voltage, synchronously rectified step-down converter with dual integrated MOSFETs can operate over a 4.5V to 60V input. The MAXREFDES1048 reference design operates over an input voltage range of 18- to 36-Vdc and delivers an output of 3A. The MAX17504 can deliver up to
3.3V/3A, WIDE-INPUT, SYNCHRONOUS, STEP-DOWN DC-DC REFERENCE DESIGN Read More »
Designed and produced with everything an IoT engineer might need, the python-programmable ESP32– powered IoT display by Riverdi is an expandable, cloud-ready GUI with a sleek design, low power consumption and top of the line graphical capabilities for high-quality IoT projects. The Riverdi IoT displays comes in 3 different versions – 5″ resistive touch panel, 5″ capacitive touch panel, and
RIVERDI IOT DISPLAYS FOR NEXT LEVEL IOT PROJECTS Read More »
For my first IoT project I wanted to build a Weather Station and send the data to data.sparkfun.com. Small correction, when I decided to open my account in Sparkfun, they were not accepting more connections, so I choose another IoT data collector thingspeak.com. Continuing… The system will be placed on my balcony and will retrieve temperature,
ESP32 Solar Weather Station Read More »
