Today I tried to read out the CPU speed information of a 4-wire CPU fan (Intel DTC AAL03) and additionaly I tried to control the fan speed by PWM. The 4-wire system looks like that: black – GND yellow – +12VDC green – pulse tachometer (for my Intel CPU cooler this is 2 pulses per […]
Very simple linear temperature sensor. The sensor outputs 10mV/Deg. C. linear from -55 to +150 C in full range mode. You can even use the sensor without any supplementary ciruit. Just connect the +5V, GND and one analog input line. In this mode the sensor will work from +2 to +150 C. As the analogRead() […]
A little shooting game sketch (it’s exactly only that)… using the sparkfun LCD, 3 buttons and the Arduino… Because I was too lazy to get some working random code I used an analog input port on which nothing is connected. Because the obstacles popped out too fast I did the real dirty “if (shuffle == […]
The MLX90614 is an infrared temperature sensor. Therefore the cool thing about this is that you can measure the temperature of different surfaces. My first idea was to measure the brake disc temperature of my bike. In the first steps I need to accomplish two things, 1) Getting my LCD to work with my Arduino […]
As I was interested in getting data out of my Arduino UNO to a LCD, I just bought a Sparkfun Serial LCD (V2.5) for fun. The display is almost plug-and-play. As it uses its own PIC 16F88 controller it accepts serial ASCII characters input and some special commands for controlling the display. In a few […]