iHome – Intelligent Thermostat Project
https://www.electronics-lab.com/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 be interesting enough to be build as a […]
Geiger counter with SBM20 tube
https://www.electronics-lab.com/project/geiger-counter-with-sbm20-tube/
I “rebuild” my Geiger counter, the SBM-20 tube was initially inside the box, so, i have put this one inside a 32mm diam plastic tube, for more convenience, wired through a XLR3 cable. The LCD display alternatively, the “count per minutes” and result on: milli Sievert/year or nano Sievert/hour, you can switch off/on the buzzer, […]
Capacitance Meter
https://www.electronics-lab.com/capacitance-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 measuring capacitance is quite simple. The voltage of a capacitor charging through a resistor […]
How to Control Your ESP8266 From Anywhere in the World
https://www.electronics-lab.com/how-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 solution for that problem. With the new version of […]
Get a constant +5V output by switching between a +5V input and a single-cell LI+ rechargeable cell
https://www.electronics-lab.com/get-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 by switching between a +5V input and a single-cell LI+ rechargeable cell […]
Posting a Tweet with the ESP8266
https://www.electronics-lab.com/posting-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 to accomplish this task you have to sign […]
4 x 4 mm GPS module for wearables, portables, in distribution
https://www.electronics-lab.com/4-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 GPS receiver module. Measuring 4.1 x 4.1 x 2.1 mm and with low […]
Energy-harvesting power management ICs for wireless sensor nodes
https://www.electronics-lab.com/energy-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 for Internet of Things (IoT) applications, these parts are said to be the lowest-power, single-chip Energy Harvesting […]
DHT22 Humidity datalogger
https://www.electronics-lab.com/dht22-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 than 65%, therefore I have to isolate […]
How to control LM2596 buck-converter with microcontroller
https://www.electronics-lab.com/how-to-control-lm2596-buck-converter-with-microcontroller/
by hugatry @ hackvlog.com: Every now and then someone asks on different forums if there is an way to control cheap LM2596 modules with an Arduino or another microcontroller. I decided to demonstrate one solution that might be basic electronics for some, but still many don’t know about. Those buck converters will change the output voltage […]