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I mean ASCII is rather decent for sending small stubs of information, like lighting up a single led or something. But when wanting to send a lof of commands and information it feels a bit unecessary to do all this from scratch using byte-by-byte ASCII. In my particular case I want to interface...
Hello,
I want to transfer data to and from a microcontroller over UART. Now I have a homemade protocol sending numerical information in ASCII format. It's working, but I would rather work with some suitable standard protocol if there is some out there?
Use an RC series circuit:
https://en.wikipedia.org/wiki/RC_circuit
1. Pick a rather large R as that will reduce the circuits energy consumption. It could probably be as high 0.5-1.0 Mohm, if you can find a suffiently small capacitor to match it.
2. If you apply a voltage U it will take approx...
I'm making a controller for a DC generator. The generator in question is connected to a windturbine so is has highly varying levels of input voltage and current.
I have an idea about how to do it and would like to discuss it.
The basic idea is to use the DC machine's inductance and not any...
betwixt: Alright, so it's about the signal to noise ratio then.
schmitt trigger: I have to read more about HF power supply filters.
Star grounding was interesting, found a great paper on that and other things here...
Can you elaborate that please?
I'm only interested in the DC level of a current controlled by switching. The current design criteria is the time it takes for a DC step change to settle.
I'm little worried about the step change ripple introduced by a second order butterworth (eg...
I want to measure a voltage <100mV for a current measurement setup with the ADC on an Arduino board.
In order to get a neat resolution I could either amplify the this voltage to the ADC ref level of 5V or lower the ADC ref level to ~100 mV.
However, there is quite some noise on the internal...
According to this PDF a moving average filter has the fastest possible step-response but still good noise rejection.
https://www.analog.com/static/imported-files/tech_docs/dsp_book_Ch15.pdf
I also realized that cranking up the PWM switch frequency would keep the DC level about the same but...
I want the current regulator cascaded with the speed controller. This is a common way to improve DC motor speed controller performance, as it helps removing disturbances in the fast electric circuit before it these affect the slower speed control loop. Also it's a linearisation of the very non...
I want to measure the average current through a small DC motor switched with PWM. Current is measured via a hall-sensor with voltage output.
I want a stabilized value each ms for a current regulator, meaning that the filter cant have a too big delay.
First I need an analog filter to get rid...
I'm trying to decide the switch frequency on a DC motor on a small robot.
The switch frequency should be higher than 1kHz as the robots speed regulator with a cascaded average current regulator is designed to work at a sampling rate of 1 kHz and therefore at least one whole PWM period should...
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