One of the critical components is a pwm speed controller, so that i can finely adjust my speed rather than just having an `on` mode that runs balls to the wall. That way may be fun for a little while but I value my life. lol PWM - I bought a basic stamp microcontroller a while back that came with a breadboard built into it. This is the sort of controller that they sell to schools to
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learn microcontrollers and all of their functions. I have had a blast tinkering with it, and recently realized that it had a pwm function on it. so I set up a circuit using pwm that references a capacitor timer circuit controlled with a pot. So as I turn the pot, I increase or decrease the pwm. I threw a LED into the mix to see the results, and it works like a charm. Very simple, but to a newb like me, I was quite pleased with myself. When I finish my project I will buy a more permanent microcontroller that doesn`t have the bread board, but its a good starting point to see what I can do. So now I have a signal that is adjustable through a pot, now what I need is an amplifier to increase this signal to a useful output. This is where it all gets a little hazy for me and my ignorance really shows through. I posted on another forum more specialized to E-biking and got a good response to some of my questions, however they raised more. I understand that the next stage after the pwm mcu, is a driver" circuit (an IC) called FET drivers, or gate drivers, WHAT IS THIS lol, more aptly where can I read up on this subject. I also understand that many speed controllers use an H bridge for forwards, backwards, regen braking forwards, and regen braking backwards. This is getting way ahead of me and not really worth my investigation. I really only need forwards. Can I use just one driver, and one large power switching mosfet connected to...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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