In addition to those gauges, the display will feature some combination of a tachometer, charging system gauge, oil pressure gauge, and engine temperature gauge. Let's have a quick dashboard confessional that covers what each part does. The speedometer, one of the most frequently used tools, ...
Java or similar programming languages, if you are not, there will be some help provided by the tutorial, but please refer to the electronics and programming resources section. Some electronics knowledge, you need to understand basic electronics concepts such as what voltage, current and a circuit ...
Figure 1. Tachometer-output waveform in 3-wire fans—ideal, and under PWM control. In order to be sure of a correct fan speed reading under PWM control, it is necessary to periodically switch the fan on long enough to get a complete tach cycle. This feature is implemented in a number ...
The International System of Units (SI) term for current isAmpere, commonly abbreviated to the word “amps” and written with the symbol A. Current is also often written with the letter I. This goes back to the French phrase intensité de courant (“current intensity” in English). Both A...
The Model T, known for its affordability and simplicity, propelled Ford to success, but the transition to the new Model A was costly in terms of both money and customer goodwill. Despite strong competition and the onset of the Great Depression, the Model A was a success, and Ford continued...
Upon first powering on the TL-SX1008 I was greeted to fan noise of ~67dB(A), however before long it settled in at ~47dB(A) while running completely idle – absolutely audible over my other equipment. I found the fan would ramp up and down a little inconsistently even with minimal net...
A car generatoris a dynamo. It is able to produce electricity through the rotation of tightly wound fine wires in a magnetic field. This magnetic field is maintained by a fixed arrangement of magnets or electromagnets surrounding the spinning windings of wire. The current and voltage produced dep...
The tach instructions said to wrap the red wire around the cable 3-4 times. The tachometer worked, but the idle was erratic. I eventually added a couple of extra turns to make the reading more stable. I made a mount for the Tiny Tach from some leftover 1/8" plywood. I could have ...
Intelligent microprocessor-based speed control is a major benefit of hooking fans up to powerful PC motherboards. Unlike regular DC fans that use only two wires—one for VCC (power) and another for ground—the simplest PC case fans have an additional wire for the tachometer signal, which ...
I used heavy gage wire to try to reduce losses due to wire resistance. Every watt counts when you are living off-grid. This is the schematic for the new charge controller. It is pretty much the same as the old one above, except for the addition of the Volt meter and extra fuse ...