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In general there are 2 things about personal safety when working with mains:
1.Electric shock
2.Ark blast (from a short circuit)
(or a combination of the above)
So for the first, be sure that any metal parts you may contact (as the solder tip) are grounded. Keep good distances (>3mm) between...
Using a CLC (https://en.wikipedia.org/wiki/Capacitor-input_filter) filter instead of a single capacitor in the output of the diode rectifier bridge (https://en.wikipedia.org/wiki/Diode_bridge) has some advantages, so the designer choose to use it for his reasons (the reasons can include ripple...
Maybe the designer has put this resistor as a damper for possible resonant oscillations in the rectifier output pi filter that C5, L1 and C2 (and bead inductor) form. Because if you combine the capacitors, essentially you get one parallel RLC circuit in which the damping factor...
I thing you have understood that the control isn't going to be perfect for many reasons, so the control sheme depends on what you define as 'acceptable' response. For example you want smoothness in your motion or you prefer a more 'strict' control? This can be controlled by the PID gains but...
Stay in sleep mode as much as you can. Use low freq oscillator/crystal. Use timer 1/3/5 or watchdog to wake up, do what you want with the AD, MODEM etc, and go back to sleep mode.
As far as I understand this topic, I'll try to help:
1. Every waveform (periodic function) can be expresed by the sum of some (probably infinite many) different complex sinusoids.
2. With the Discrete-Fourier-Transform we 'decompose' each waveform to its coefficients of some (finite, its an...
i second for no2 solution from alexan_e's link as the simplest, if its about a common character lcd (such as HA44780/S6A0069 based). if you don't want to read data from lcd memory, then you keep the lcd data pins constantly configured as inputs (the RW pin) and the only thing you need to read...
Saturation Vce is a value in the datasheet of a transistor, and it does not change. Its the voltage across C and E when the given (maximum, saturation) current is flowing through C an E (and Vbe sat. is applied on base). If you don't know it, and you have no other information about the specific...
(If you do not expect P1 to change inside yes(), then) the second if is useless, and you always run either nothing, or yes() followed by baggage_1(). I suppose that the interrupt is working, and initialization its ok
winavr programming beginners
@nandhu015
A commercial product has an advantage in support, because there is a person behind a phone-line/email that knows the product, is responsible for it to do what its suposed to do, and has to help you when you want it. The support from the users community...
winavr
1. I dont know
2. GCC is free and also open source (e.g. anyone can modify the compiler source and use it or even sell it, but under the GPL) and this is the purpose it was created as one essential part of of the GNU operating system back in the 80's. Its not a commercial product and...
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