iHome – Intelligent Thermostat Project
by jwozniak @ jwdevs.com : The world of IoT for “Smart Home” is growing very fast. There are various areas of interests from security to automated animal care depicted for instance on this page. I’ve tried to look at the things from the practical point of view. What would...
Continue ReadingCapacitance Meter
by ThomasVDD @ instructables.com: Capacitors are vital components in electronics, but sometimes they are broken, or the value printed on the cap has become unreadable. Because my multi-meter does not have a capacitance measurement, I decided to make one! The principle of...
Continue ReadingHow to Control Your ESP8266 From Anywhere in the World
by Rui Santos @ randomnerdtutorials.com: The most common questions I get about the ESP8266 WiFi Modules are: “Is it possible to control my ESP8266 from anywhere in the world?” and “How can I control my ESP8266 from anywhere?”. I’m happy to announce today that I have a...
Continue ReadingGet a constant +5V output by switching between a +5V input and a single-cell LI+ rechargeable cell
App note from Maxim Integrated on providing smooth power from two sources. Link here (PDF) Design provides a simple method for maintaining an uninterrupted +5V even while switching between the external +5V supply and a rechargeable single-cell Li+ battery. Get a constant +5V output...
Continue ReadingPosting a Tweet with the ESP8266
by Rui Santos @ randomnerdtutorials.com: In this project you’re going to post a Tweet with an ESP8266. The goal of this project is to show the endless possibilities that this $4 WiFi module offers when integrates with a free platform that I’m about to show you. In order...
Continue Reading4 x 4 mm GPS module for wearables, portables, in distribution
by Graham Prophet @ edn-europe.com: Distributor Acal BFi has the Nano Spider from OriginGPS; the miniature module makes it possible for manufacturers to bring accurate GPS to tiny devices. Claimed as the world’s smallest GPS module, Nano Spider is a fully integrated, sensitive...
Continue ReadingEnergy-harvesting power management ICs for wireless sensor nodes
by Graham Prophet @ edn-europe.com: Cypress Semiconductor has introduced what it believes to be the lowest-available-power PMICs that enable an integrated module size of 1 cm² for solar-powered wireless sensor node (WSN) designs. Intended to manage solar-powered wireless sensors...
Continue ReadingDHT22 Humidity datalogger
by luckyresistor.me: There is a large cellar where I could store unused items and documents, but the catch is the humidity there. It is a root cellar near a small brook and the humidity varies between 75% up to 90%. Archived material should never be exposed to humidity greater...
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