They day I read at hackaday (http://hackaday.com/tag/esp8266/) that a new $5 wifi module was available, I order a few of them to test. Now, a few weeks later I want to share my experience. This is a very simple demo using the ESP8266 and Arduino to update a remote server (https://thingspeak.com/) using a digital temperature […]
ESP8266 Wifi Temperature Logger Continue Reading
Simple Automatic Car Battery Charger This is modified version of commonly available automatic car battery charger system. I obtain original layout of this charger from one of the commercially available Chinese car battery charger and modified some of the sections of original schematic to improve the performance and stability of the system. This charger is
Simple automatic car battery charger Continue Reading
Panasonic Corporation has developed a pin-shaped Lithium Ion battery (CG-320, nominal capacity 13mAh) with a diameter of 3.5mm and a weight of 0.6g. This offering will give designers an added choice to their power sources for new designs among paper and thin film batteries but is not an earth-shattering battery breakthrough. EaglePicher has had small
Tiny pin-shaped Lithium Ion battery Continue Reading
Description This project provides some lighting effect by the blinking pattern of the bulbs connected at its output. Up to 8 Bulbs can be connected in between connector CN2 to CN9 and AC power to control them should be connected at Connector CN10. DC Power should be applied at Connector CN11 in accordance with the
Microcontroller based running light controller Continue Reading
The AD5689R nanoDAC+™ is a dual, 16-bit, rail-to-rail, voltage output DACs. The device includes a 2.5 V, 2 ppm/°C internal reference (enabled by default) and a gain select pin giving a full-scale output of 2.5 V (gain = 1) or 5 V (gain = 2). The device operates from a single 2.7 V to 5.5
ADI shrinks package size of 16-bit DACs Continue Reading
Introducing the SmartConnect SAM W25 module for edge nodes IoT applications Now on display at Electronica 2014, the SmartConnect SAM W25 module is the industry’s first fully-integrated FCC-certified Wi-Fi module with a standalone MCU and hardware security from a single source. The module includes Atmel’s recently-announced 2.4GHz IEEE 802.11 b/g/n Wi-Fi WINC1500, along with an Atmel | SMART SAM
Atmel’s IoT Edge Solution Continue Reading
Maybe you’re learning about filters and want to see the how your filter responds in the 10Hz to 1MHz range. This guide will show you how to make a low frequency ‘spectrum analyzer with tracking generator’ using a few cheap modules and an oscilloscope — Based off of a video done by Dave Jones over
Bode Plot on an Oscillscope Continue Reading
This tiny step-down converter chip measuring just 2.5 x 2.0 x 1.0 mm contains an integrated coil and can handle an output current up to 1 A. The XCL210/XCL220 are a new family of step-down micro DC/DC converters which have been specifically designed to minimize unwanted EMI emissions. This makes them particularly suited for use in small-scale RF applications. The design
Arduino Tiny Torex DC/DC Converter Continue Reading
New graphic chips supporting capacitive touch screens – FT801 with the “EVE” technology from company FTDI bring a simple usage even for these perspective displays. FT801 brings together advantages of the „Embedded Video Engine“ (EVE) concept and advantages of capacitive displays like easy control, interactivity and usually a higher brightness and overall vividness of these
FT801 if you prefer capacity rather than resistivity Continue Reading
Description Single Channel Relay project is a simple and convenient way to interface a relay for switching application in your project. Specifications: Input – 12 VDC @ 42 mA Output – SPDT relay Relay specification – 5 A @ 230 VAC Trigger level – 2 ~ 15 VDC Header pins for connecting power and trigger
Arduino One Channel Relay Driver Continue Reading
