Arduino Day is coming on 3/28/15. Find an activity near you.
I used an old Arduino Deumilanove because I will need to change the time for daylight savings and want an easy way to do that. If I had used one of my stand alone Arduinos, that would mean removing the chip and putting in another Arduino and then updating the time from the computer. This way I can just connect the clock to the computer without the need to remove the chip.
I also added a light sensor to automatically adjust the brightness of the display.
Last year for Christmas I gave my sister a green house monitor made out of 2 JeeNodes and LCD screen and some leds. See the post about it here. Basically a JeeNode is a small Arduino with a radio added.
I works great, but the battery life on the JeeNode in the greenhouse didn’t last long. Reportedly it lasted 2 to 3 days. This year I’m giving it an upgrade or version 2.0. I have added 2 parts from Adafruit. First is this solar charger piece, and second is this solar panel. We already had this 2500 mAh battery.
Last year I couldn’t quite get the code to sleep properly. Now I have updated the JeeNode in the greenhouse to sleep, almost a minute at a time. This should extend the battery life greatly, hopefully at least a month at a time. See the code below if you are interested.
Sorry I haven’t posted in a while. I was deciding if I should plunge into 3D printing or drones. I’ve been completely distracted by quadcopters and am now attempting to build one.
A quadcopter combined with a GoPro camera is a great way to take aerial photos.
Below is a sample picture of a quadcopter from Flickr.
Photo by Steve Lodefink from Flickr
Yesterday I deployed a Jeenode and a tmp36 temperature sensor.
I am receiving the data inside on a receiving Jeenode with a real time clock and a 20X4 LCD screen.
I still have to add the rain and wind sensors and also plan on setting up a room node (inside temp and humidity along with a PIR sensor).
I wonder how long the battery will last with the solar panel? Update- 12 days, see below.
I’ve been working on a holiday present for my sister which is a temperature monitor for her greenhouse. Originally I wanted to use Xbee radios as I had tried them before and have Rob Faludi’s book Building Wireless Sensor Networks.
I recently discovered JeeNodes and decided to give them a try instead as I had found Xbee radios not the easiest to work with. What you get for roughly $22 is a small Ardunio based on the Really Bare Bones Board with a radio. Made by JeeLabs with an extensive library that can be found on Github. Read the rest of this entry »