In my previous post, the ESP8266 Arduino Sketch was reading 12 temperature sensors. In this post, I describe the progress on the web side of things: the PHP web service that stores temperatures in an SQL database.
At this time of year when Sparkfun, AdaFruit, and Arduino tweets are filled with high-tech Jack O’ Lanterns, I thought I’d document the making of an Old School Jack O’ Lantern.
In my previous post I started the electronics and software for an Arduino Sketch for an ESP8266 WiFi microprocessor and several MAX31820 temperature sensors, that will eventually estimate and upload the level of water in our well water tank.
I’ve begun another Arduino/ESP8266 project: reporting the level of water in our well tank. This project will involve the ESP8266, MAX31820 temperature sensors, some mechanical work, sending data to a web-based database, and interpreting the temperature data to estimate the well water level.
I try not to spend much time talking about ye olde timey computing that I lived through, because it quickly becomes boring to all but those who were there, and the future is so much more exciting. But in looking up evidence I had of Tektronix having Ethernet (and Internet connectivity before that), I found a photo of my olde timey Tektronix office desk, and couldn’t resist cataloging how office computing has changed.
I have to confess that sometimes I need a push to make the right design choice.
It’s been a long time – way too long – since I worked on my Lunar Clock project. In the meantime, Sparkfun has introduced new, inexpensive microcontrollers aimed at Internet-of-Things applications. I knew one of those new microcontrollers would be perfect for the Lunar Clock, but I dragged my feet.
I’ve been interested in sundials for ages. Tracking the sun’s path by observing the shadow of a stick is an ancient form of astronomy, and a gateway into geometry (literally “measuring the earth”).
Because the 2015 movie Tomorrowland is back in the news, I thought I’d offer my ideas of how to enjoy this promising and flawed movie.
Needless to say, this post contains spoilers.
Because in-home sensor systems and User Experience are interests of mine, I offer this How To after replacing a sensor in my home alarm system. Continue reading How to replace an ADT sensor battery