I wanted a way to have a "rotatable" counter to indicate that the LCC was still looping properly. I finally found something! A decade counter (as noted in an earlier post)! Now instead of pulsing one led I have a "spinner" type of effect. I don't have to keep track of where the "count" is....I … Continue reading Decade Counter!
So I want to add some kind of visual indication that my main arduino loop is still well, looping. I decided on an LED "spinner", kind of like on web pages and applications. but how to do it? After a lot of searching I found something neat. A decade counter. Seems this nice little IC … Continue reading LED Spinner!
I've started on LCC 2nd Gen or LCC2 or LCC II. I don't know what to call it. BUT I do know it'll be killer. This one is going to be everything LCC 1 was not. So far I have: Ethernet 64 GPIOs A better RTC 2 OLED displays The RTC can be updated via … Continue reading The Next Lizard Climate Control…
This may be useful for you if you haven't memorized the pins on the Arduino UNO R3 Handy Arduino Uno R3 Pinout Diagram.
I gave up on trying to drive the A6280 directly with the Arduino. macetech.com already did what I wanted but couldn't do myself. They used the A6281 (which doesn't come in a DIP package- only an SMC) on a nice little breakout board with a RGB LED. Yea! So here's the Module.It worked perfectly and … Continue reading ShiftBright RGB LED Module Saves the Day!
One of my bestest oldest friends is an electrical engineer/genius. So I asked him- how do I drive 3 LEDs from the least number of Arduino ports? Allegro Micro he says. I found this. SWEET! This thing will drive LOTS of these little LED drivers from the SPI serial bus. I'm so giddy! Digi-Key order … Continue reading LED drivin….
For my LCC project I decided to use a 2N4401 NPN transistor to control status LEDs and AC Switches. I did this so that the power draw from the Arduino chip would be as low as possible. Below is a diagram of how this works. I used a 2N4401 NPN transistor that "turns on" when … Continue reading Using a Transistor to Control an LED or anything
The PowerSwitch Tail II is a great and VERY simple way to have the Arduino control AC powered devices. I've used these in my LCC project. The Arduino can control these directly from a digital IO port, BUT you're better off using a transistor to drive them, just in case... You can get them at … Continue reading PowerSwitch Tail II
For the LCC project I had to add a real time clock (RTC) so that it could manage the light schedule independently of a PC. I added a fairly generic RTC shield. I could have used this one or this one. They both use the I2C bus and the DS1307 RTC chip. The example from … Continue reading Real Time Clock
The TMP36 was my first sensor and is pretty simple. 3 pins, 1 analog port. Available from SparkFun. It's a low voltage temperature sensor. It provides a voltage output that is linearly proportional to the Celsius temperature. It also doesn't require any external calibration to provide a typical accuracy of ±1°C at +25°C and ±2°C over the … Continue reading TMP36 Analog Temperature Sensor