This project is a modification of my previous Bluetooth-enabled LED matrix display project, which used 8×64 monochromatic LED matrix (total 512 LEDs) for displaying scrolling text message. The original project used Bluetooth for display data transfer from a smartphone, but this one now uses Wifi. The display message is sent through web browser to a ESP8266 […]
ESP8266 Wifi enabled 8×64 pixel LED matrix display Read More »
A few months ago, Andreas presented a nice version of the “throwie” (a LED packed with a small battery that you can throw & see shining for hours) using an ESP8266 instead of a LED : a “wifi throwie”. He could not make it work with button cell batteries (the ESP8266 draws too much current)
Wifi throwie : improved version Read More »
Hey guys, back with another little project that I’ve been fiddling with for the past week. With kids around, every parent is thinking how to make their home safer for the little ones and for everybody in general. One of the most dangerous thing in the house can be the stove and since we have
DIY WiFi gas detector with text alerts Read More »
This is a simple WiFI Smoke Detector that texts me when it senses smoke. I made this for my battery storage area in case of a lithium polymer fire. I still have all of my regular smoke detectors installed and I don’t suggest relying only on this, but rather as an extra layer of protection.
WiFi smoke detector Read More »
Lantronix xPico WiFi module enables to directly configure a target device via a software access point – without a need to access a client´s network. Lantronix xPico WiFi is a new module with a dual serial port (+USB 2.0, + SPI) enabling to connect target devices into WiFi network with several features making it user
xPico WiFi is a dream come true for producers and customers Read More »
WiFi is something we have wanted to do for a long time, but there are a lot of technical and regulatory challenges around it. If you’re running an OS on an embedded PC like the Raspberry PI, WiFi is simple, you buy a cheap dongle and the intelligence is in the driver. For a low
WiFi DipCortex An embedded WiFi module to power your next product Read More »
Near-Field Communication (NFC) is an evolution of radio frequency identification (RFID) tag technology that allows objects to respond to the tap of a mobile device. Although the tags are being used for making payments from a wireless bank card or a mobile phone, there are many more applications. NFC takes the identification and low cost
Getting Started With NFC Read More »
The Digistump/Digispark team is back, bringing the experience gained producing over 40,000 and shipping over 25,000 Digisparks in less than two months! Announcing the DigiX – the ultimate sequel project to the Digispark. The DigiX has a 32-bit 84 MHz MCU, embedded low power Wi-Fi (b/g/n) and mesh networking, 99 usable i/o pins, audio output, USB
DigiX – The ultimate Arduino compatible board with WiFi! Read More »
Mechanics of WiFi Detectors A wireless signal can travel only so far. Specifically, a typical signal can extend as far as 1,000 feet (304.8 meters) in an unobstructed, open area and about 300 feet (91.44 meters) in a closed area that has obstructions [source: Graves]. Because the signals themselves are invisible and the access points
How WiFi Detectors Work Read More »
In today’s wireless, connected world, ambient Radio Frequency (RF) energy is everywhere. Technically, this free-flowing energy can be captured, converted and stored for use in other applications. In fact, it is already in use in a number of ultra-low-power, battery-free applications, such as RFID tags, contactless smart cards, and wireless sensor networks. As a result
Tune In, Charge Up: RF Energy Harvesting Shows its Potential Read More »
