A friend of mine is a scientist who does experiments that are very sensitive to air temperature and humidity. The incubator room has a small ceramic heater but the heater’s thermostat was not nearly accurate enough, only able to maintain the temperature within 10-15 degrees. Commercial devices that log temperature and humidity can be quite …
ESP8266 Temperature Controlled Relay Using Arduino Read More »
Hello guys, i make this instructable for the people that liked the electronics and the botanic, with this you have the data about the temperatura and the humidity of your orchard and register this in a data base MySQL. For this proyect you need some knowledge of programing in PHP and MySQL, we will make …
Save data of temperature and humidity on MySQL with Arduino Uno and Wifly Read More »
This indoor/outdoor Weather Station is the third in a series of Very Low Power BLE – 2022 projects. The very low power BLE temperature, relative humidity and barometric pressure sensor is an extension of the Very Simple, Very Low Power BLE Temperature Sensor The sensors are simple to make and run for ~4 ½ years …
BLE Indoor/Outdoor Weather Station Using Arduino Read More »
Background I was in need of an affordable data logger for a project. I have access to MATLAB on all of my machines so it was an easy choice to build an Arduino based data logger that would easily interface with MATLAB R2014a. MATLAB is limited in both its sampling frequency (25 Hz) and its …
This tutorial shows you how to program an ATtiny45, ATtiny85, ATtiny44 or ATtiny84 microcontroller using the Arduino software. These are small, cheap ($2-3) microcontrollers that are convenient for running simple programs. The ATtiny45 and ATtiny85 have eight legs and are almost identical, except that the ATtiny85 has twice the memory of the ATtiny45 and can …
This instructable is a basic version of Bley Joel’s (“It’s nine o’clock on a Saturday, the regular crowd shuffles in”) Solar Shield, and it should work for most arduinos. I’ve tested it with SparkFun’s Arduino Pro, and the new Leonardo. Myself and the other Solar Pocketeers* are actually waiting for a new set of PCBs for …
Arduino Solar Shield – A DIY solar source for your projects without waiting for PCBs Read More »
When I’m building Solar Shrubs and other solar-powered creations, I often scavenge cells from various off-the-shelf devices such as solar garden or security lights. But these cells are rarely labeled as to their voltage, current, and power output. So it’s off to my bread-boarding station. First, I put each cell under a lamp and connect it to my multimeter to get the volts. …
This Instructable shows you how to build a four-gang outlet box in which each outlet is controlled via an Arduino (or any other TTL level signals). It differs from the other relay boxes in that it uses no circuit boards and has very few parts (one chip and 4 relays). Step 1: Assemble Materials/Review Plan Tools …
I wanted a charger for my iPodTouch and the MintyBoost was definitely my first choice. I wanted to take it a bit further and make it not only rechargeable but also solar powered. The other issue is that the iPhone and iPodTouch have large batteries in them and will deplete the two AA batteries in the MintyBoost …
How to make a solar iPod/iPhone charger -aka MightyMintyBoost using arduino Read More »
Ever wanted to build your own Solar Powered Raspberry Pi or Arduino system? SunAir and SunAirPlus are 3rd Generation Solar Charging and Sun Tracking Boards designed by Dr. John C. Shovic at SwitchDoc Labs. You can use this board to power your projects and add a servo or stepper motor to allow it to track the sun …
SunAir Solar Power Controller for Raspberry Pi and Arduino Read More »
