This is a colorful, useful and educative project from Erlich Industrial Development, Corp. You will learn using Op-Amps as comparators and also LED bar graph analog display.
Voltage Monitoring is an Electronics board that allows you to connect 5 to 14VDC on one side of the board and get it corresponding LEDs light on the other side. Every Car, tractor or boat should have one.
Battery Monitor for your Boat or Car
The boards will allow you to easily monitor your 12V battery while powering from the same battery. The Terminal Block TB connector is included and makes it easy to use.
The LM324 is the Heart or Intelligence in this Circuit. There is a voltage divider and zener too. They have a kit and pcb to buy and build .
A battery of a car can drive enormous amount of current, anything that is High-Voltage, High-Current or High-Frequency or a combination of these; are known to be high energy circuits. So as a precaution when you wire the positive to the car battery use an automobile fuse with holder like the one used outside the stereo player. The fuse has to be outside!
You could also use a fusible resistor in a metal box and keep it outside, the 12V positive has to go thru this. Any car/boat project needs this. A short circuit on PCB or Wire will blow fuse and everybody is safe.
Got it ..
This is a Analogue Synthesizer Controller from The Peasant. It Aims to be an extremely versatile Musical Effects Equipment working with he “SynthCase System” which also can be found there.
SynthBend – The Electronic Peasant
Some of you may be aware of my Electronics Engineering community. A DIY question was asked by a young person …
“I wish to build a modular style analogue synthesizer . I was wondering if anyone had any relevant circuit diagrams for oscillators, filters or amps etc …..Im really interested in building good circuits but in my own design ?”.
This made me add some of the Analog Synth Enthusiast Sites in this blog. I also realized that this is a good starting point for young minds to learn analog design. If a student or hobby learner is enthusiastic about some idea, he gets the drive to learn the basics on his own.
When a person who is learning, or even a professional, is passionate about what he is doing; he achieves what is called as Resonance in that filed of activity. This is when Innovations Sparks, this is when an Invention Manifests. This is the beginning of R&D.
Getting back to The Peasant in his own words about this device he created …
“A classic control-voltage type keyboard and an Appendage ribbon controller would be the heart of the project, with many added features. A large quantity and variety of manual CV modulation controls, such as joysticks, potentiometers, and pressure sensors would also be included.”