IO Expander Board
https://www.electronics-lab.com/project/io-expander-board/
I/O Expander Board offers a convenient way to interface upto 16 I/O pins in your project using SPI/I2C bus. This kit uses the famous MCP23S17 IO chip from Microhip. Specifications Supply sourced through the interfacing Box Header connector The kit has 2 separate Box Header type connector for the 16 pins of I/O port […]
EEPROM Module
https://www.electronics-lab.com/project/eeprom-module/
EEPROM Add-On Board offers an easy way to interface a standard 24Cxx type I2C EEPROM to your project. Specifications 5 VDC supply sourced through the interfacing Box Header connector Jumper selectable address option available Four mounting holes 3.2 mm each PCB dimensions 36 mm x 32 mm Schematic Parts
16-Bit I2C-Bus LED Dimmer
https://www.electronics-lab.com/16-bit-i2c-bus-led-dimmer/
This project is devised for LED dimming using NXP Semiconductors’ PCA9532 16-Bit I2C-Bus LED dimmer. A lot of solid-state lighting applications require control over the emitted intensity of light for both functional and aesthetic requirements. Some of these applications also require a full dimming capability from fully ON to fully OFF. LED dimming potentially improves […]
1clickBOM, a browser extension for quick shopping – Firefox version
https://www.electronics-lab.com/1clickbom-a-browser-extension-for-quick-shopping-firefox-version/
Kaspar of Monostable has released a Firefox version of his helpful purchasing tool the 1clickBOM, a browser extension to quickly add electronic components to shopping carts: 1clickBOM, a browser extension for quick shopping – Firefox version – [Link]
LM2596 DC-DC Converter Module Testing
https://www.electronics-lab.com/lm2596-dc-dc-converter-module-testing/
by Kerry D. Wong: LM2596 based step-down DC-DC converter modules can be bought on eBay quite cheaply for around a dollar each. But how do they perform? Is it safe to use it to power your design? Let’s find out. According to TI’s website, these LM2596 step-down (buck) regulators are sold for $1.8 each for a […]
Freaks3D: the World’s First Portable 3D Printer
https://www.electronics-lab.com/freaks3d-the-worlds-first-portable-3d-printer/
Simplified structure. Portable so you can take it anywhere. Quality prints at breaking low price. Take it wherever you want. The Freaks3D weighs 2.945kg and battery compatible. It is completely portable. Small enough to blend in with any table but large enough to unleash your creativity. Less is more. Simplified extruded-aluminum beams to ensure sturdy […]
“Non-breakable” interface converter combined with MCU? Wiznet is a solution.
https://www.electronics-lab.com/non-breakable-interface-converter-combined-with-mcu-wiznet-is-a-solution/
In the last period we can see, that producers go on the way of processors combined with interface converters grouped into a single chip. Company Wiznet also goes this way. At the end of May 2015, Wiznet launched on the market the new W7500, combining the HW TCP/IP interface converter W5x00 with an MCU. W7500 […]
Even a small figurine can play a big performance
https://www.electronics-lab.com/even-a-small-figurine-can-play-a-big-performance/
New aerial from 2J will surely not surprise you by its size, however features of the antenna are worth noticing. 2JW035 antenna measures only 52,5mm and is intended for WiFi and Bluetooth devices in 2.4 a 5GHz bands. The gain is 5dBi and the VSWR value is below 2.6:1. A big advantage of this antenna […]
KaraOkay Microphone Amplifier
https://www.electronics-lab.com/karaokay-microphone-amplifier/
Here is an all-analog, all-through-hole, cheap & cheerful preamplifier for that perennial problem of getting the microphone amplification just right, which is a challenge not only with the faithful reproduction of lead vocals during concerts and recordings, but also with campfire and karaoke-ish performances specially when the beer takes hold. KaraOkay Microphone Amplifier – [Link]
More awesome DoorBell control
https://www.electronics-lab.com/more-awesome-doorbell-control/
Felix of LowPowerLab posted an update on his DoorBell Mote project: My first DoorBell Mote prototype was working nicely and it allowed monitoring the door bell (while also triggering it remotely – toddlers love it). But I wanted more. On weekends the family likes to get a well deserved nap during the day and often […]