I have some PCBs from which I would like to remove the WHITE TEXT on the component side as well as the copper layer side.. As it is hiding some tracks.. I do not want to scratch it as the mask will come off..
My main need for buying an oscilloscope is for decoupling the power supply ripples due to switching voltage regulators or other reasons, to measure output timing and voltage of of timers and microcontrollers and etc. I may also use it in detecting RF & EMI interferences ..
Don't forget with digital oscilloscopes sampling rate is just as important as bandwidth. Technically, to see a waveform properly in one go you need a sampling rate 10x higher than the bandwidth. So a 100Mhz scope needs 1GSa/sec, now you can get by with less if the waveform is repetitive, because the scope can interpolate samples to fill in the details, but if you are are trying to trace glitchy behavior you need the higher sample rate.
depends on how much you want to use it (switching on/off)
if it's a lot of switching on and off. avoid relays... a solid state relay would be a good alternative for a lot of switching...
out of curiosity, what is you're doing?
I am converting my bedroom electrical switch board to digital. That is , instead of the piano switch I will be using tactile push buttons to switch LIGHTS, FAN and etc. Later in few days I will add a IR sensor and a remote to control them with an IR remote..
I am making a push button switch board for switching ON or OFF A.C. load.
Please tell which way it be reliable, using RELAYS, TRAICS or SCR...?? Personally I do not want to use relays, so if I use a TRIAC, then how should I connect it to arduino . Can I connect the GATE of the TRIAC directly to arduino ar I should use a MOC3011 optoisolator..??
Is it possible that the second pair of xbees ( the pair on antenna tracker and the one connected to the computer) are 2mW series 2 2.4 ghz xbees and the first pair is (the one in the drone and on the antenna tracker) is the 900 Mhz xbees..??