New answers tagged

0

To connect your Arduino to PC, in case of Uno, you can directly connect it to PC using the cable, in case of Arduino pro mini you need to have a USB-TTL converter. For getting the serial data in python you can use Pyserial, you have to give the COM port to which the Arduino have connected and the baud rate as input to get data. After getting the data you ...


0

If you want to send data from the microcontroller to the PC, then you can use the UART module of the microcontroller to send data from the microcontroller then convert data to USB and send it to the PC (you can see the graph in the image below). On the PC side, you need GUI to visualize your data. For that, you can use different technologies. Some of them ...


8

Sound power (\$P\$) is proportional to the sound intensity (\$I\$): $$ P = A\ I $$ where \$A\$ is the surface area. And sound intensity (\$I\$) is proportional to the square of sound pressure: $$ I = \frac{p^2}{z_0} $$ where \$p\$ is the sound pressure level (SPL) and \$z_0\$ is the specific acoustic impedance (think of it as something like a characteristic ...


0

Set up a button that is sensed by your microcontroller. This triggers the sound then programmatically turns the power off to the system. Options to turn power off are: have the microcontroller go to sleep, turn your buck regulator off, a high side switch, or a relay. You'll need no supercapacitor or secondary power supply.


0

There is definitely a power source needed in place of mp3 player side. You should consider using a supercapacitor which provides enough power to play the music. Since you're using Arduino consider two power sources, one from 7.2V battery (primary) and another from 5V super capacitor (secondary). Take inputs from 7.2V power sources to ADC pin and ...


Top 50 recent answers are included