The tag has no wiki summary.

learn more… | top users | synonyms

2
votes
1answer
205 views

ADC for ultrasonic frequency recording?

I'm trying to create a prototype using a breadboard that is able to record sounds at the ultrasonic frequency range. I am looking into purchasing this microphone. The problem is that the Raspberry Pi ...
2
votes
1answer
297 views

Set HDMI refresh rate

I would like to set my HDMI refresh rate to 100 MhZ as supported by my TV, however using the code below always set it to 60 MhZ: hdmi_group=1 hdmi_mode=40 Any idea why or suggestions on how to ...
3
votes
1answer
2k views

How does the RF/FM GPIO transmitter hack work?

A while ago, a few guys figured out that they could transmit FM signals using the Raspberry Pi's GPIO ports, and another person realized that he could use the RasPi for controlling his home automation ...
3
votes
1answer
83 views

Power consumption and instruction cycle frequency

I am making a small, mobile device that depends on batteries. It will only require a high CPU frequency occasionally and is at a low frequency the rest of the time. The default frequency is 700MHz. ...
0
votes
1answer
422 views

I²C frequency changeable?

Is the I²C frequency meanwhile changeable? I read a few articles a while ago, that the frequency is not changeable.
0
votes
2answers
180 views

How can I change the frequency?

I would like to change the frequency of the RPI, how can I do that, I'm using low level programming. Also how can I get the used memory and free memory?