Timeline for How to make a fingerprint scanner (UART, Serial) for a headphone jack on Android?
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 13, 2017 at 12:33 | history | edited | CommunityBot |
replaced http://electronics.stackexchange.com/ with https://electronics.stackexchange.com/
|
|
| Mar 23, 2016 at 4:25 | review | Suggested edits | |||
| Mar 23, 2016 at 4:42 | |||||
| Jun 29, 2011 at 17:00 | comment | added | Kellenjb | @Hitesh I have added to my answer for your power question. | |
| Jun 29, 2011 at 17:00 | history | edited | Kellenjb | CC BY-SA 3.0 |
added 515 characters in body
|
| Jun 29, 2011 at 15:47 | comment | added | user4843 | @Hitesh So, did you get it to work? | |
| May 20, 2011 at 6:10 | comment | added | Hitesh | @Toybuilder the scanner I am planning to use consumes just 20mA of power (at 4.5V). Do you think this can be managed from the headphone jack or do I have to provide an external power source? | |
| May 19, 2011 at 20:16 | comment | added | Toybuilder | I would be a bit concerned about the availability of power. I suspect that the square needs far less current than an image sensor running fast enough to read fingerprint features. | |
| May 19, 2011 at 13:50 | comment | added | Code Painters | @Kellenjb Same here, I'm primarily a software developer, feeling much more comfortable in the digital world, yet for this particular thing analog way looks tempting :) | |
| May 19, 2011 at 13:05 | comment | added | Kellenjb | @Czajnik I have found that purely analog based methods tend to be harder to design and get working then digital. It is all where your comfort zone is though. | |
| May 19, 2011 at 12:54 | comment | added | Code Painters | If one-way communication is the only requirement perhaps it could be simpler to use some FSK modulator (based on NE555 perhaps?) and demodulate in software? | |
| May 19, 2011 at 12:45 | history | answered | Kellenjb | CC BY-SA 3.0 |