Timeline for Using one Raspberry Pi as the Interface to trigger a camera on another Raspberry Pi zero
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 20, 2016 at 16:51 | comment | added | Mark | It still should not get over USB specification limit (500mA) so I don't think this matters how much energy would it draw. | |
| Aug 19, 2016 at 17:24 | comment | added | SlySven | As I see it the dongle is plugged (possible via a plain adapter lead) into the RPiZero and both get their power from (presumably in this case a battery pack + voltage converter) connected to the power input on the zero. However as your WIfI dongle gets further away from the other device it is in contact with it must increase it's transmission power in order to maintain the link - given that it uses a nominally omnidirectional antenna I think the relationship between distance and power level is a squared one (double the distance needs four times the power) but it might be a cube one... | |
| Aug 19, 2016 at 6:30 | comment | added | Mark | It's not the Pi0 that provides the energy but the USB power supply (or any other 5V source that you connect). Power consumption should not rise above maximum USB value (500mA), with increasing range data transfer speed might be limited (e.g. from 56Mbit to even 2Mbit). Have a look on the power consumption test: raspi.tv/2014/pihut-wifi-dongle-vs-edimax-power-usage | |
| Aug 18, 2016 at 15:02 | comment | added | SlySven | Are there going to be powering issues - as the distance between the WiFi transceivers increases the power needed to maintain the link will increase and (I'm not up on this) will the PiZero be able to provide all the current needed to a plugged in WiFI dongle? | |
| Aug 16, 2016 at 9:42 | history | answered | Mark | CC BY-SA 3.0 |