I cannot see ML content

Started by ostothek, February 02, 2025, 08:08:36 PM

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ostothek

Quote from: Walter Schulz on February 03, 2025, 04:11:27 PMAnother option: Use an SOC/SBM with a decent power consumption. Pi is a sucker in this regard.

What is your advice?

Walter Schulz

Just put a voltmeter to 650D's remote trigger input. 3.3 Volts idle and 60 µA when shortened.  This can be driven by virtually anything ...

I browsed an AVR forum and found a thread about running some app below 6 mA with 3 Volts. For just triggering a cam it doesn't matter µC is running below 4 MHz.

Have a look at AVR Dx. Specs say they run with 1.8 to 5.5 Volts. Cost should be below 5 bucks.

names_are_hard

PTP does not have intervalometer by default.  But you can add it, using vendor extension messages and ML.  If would only advise this route if you know C.

If you leave camera "on", it will sleep automatically.  This is good.  You can then wake it by sending halfshutter signal over wired remote port, as Walter suggests.  After a short delay, send full shutter and it will take a pic.  Use some microcontroller that can sleep efficiently and wake when you want.  You have now built an intervalometer (presumably, choose some microcontroller that has network access so you can control it remotely).

ostothek

Quote from: Walter Schulz on February 03, 2025, 06:40:00 PMJust put a voltmeter to 650D's remote trigger input. 3.3 Volts idle and 60 µA when shortened.  This can be driven by virtually anything ...

I browsed an AVR forum and found a thread about running some app below 6 mA with 3 Volts. For just triggering a cam it doesn't matter µC is running below 4 MHz.

Have a look at AVR Dx. Specs say they run with 1.8 to 5.5 Volts. Cost should be below 5 bucks.

Quote from: names_are_hard on February 03, 2025, 06:58:56 PMPTP does not have intervalometer by default.  But you can add it, using vendor extension messages and ML.  If would only advise this route if you know C.

If you leave camera "on", it will sleep automatically.  This is good.  You can then wake it by sending halfshutter signal over wired remote port, as Walter suggests.  After a short delay, send full shutter and it will take a pic.  Use some microcontroller that can sleep efficiently and wake when you want.  You have now built an intervalometer (presumably, choose some microcontroller that has network access so you can control it remotely).

Thank you for everything. I will take your suggestions into consideration. I thought I could handle it in a simpler way, but it wasn't possible :)