I hope the software interface has improved since the previous time I tried to use an arducam. Turned out that controlling basic settings such as exposure time and gain wasn't supported. The magic incantations necessary to get it done were kept secret by the manufacturer (Sony) of the imaging chip.
I've been playing with 4x 5MP Arducam autofocus cameras along with the Arducam Multi Camera Adapter to take 4 photos in sequence of plants from different angles.
Not only, if has an autofocus option (--autofocus flag). However, you cannot select the focus area (or focus points like in a pro camera) :(. But, the autofocus function is implemented and works nicely.
You mean using this hack: https://blog.robertelder.org/recording-660-fps-on-raspberry-... I didn't check that yet, but using the provided software and the flag (--framerate), I got the following timestamps:
# timecode format v2
0.000 8.329 16.657 24.987 33.316 41.644 49.972 58.302
Meaning that the camera is working at max. 120fps@640x480
I have a tangentially related question: I’ve been toying with the idea of building some hacky night-vision goggles by popping the IR filter off of a CMOS (or similar) sensor.
Is HN aware of any good camera modules for such a purpose?
ST Micro has some with significant near IR sensitivity, quick googling brought up [0]. For real "night vision" you need an imager without color array, it filters out too much light, and a HDR one like [1]. Then you need to map from the HDR to 8bit with some tonemapping. What you can expect max is something like [2].
Why would anyone opt in for Arduino while there is a superior platform like Raspberry pi? It’s much more capable with same maybe less price. You can even get 4 core cpu with Rpi zero 2 for 15 bucks.
Note that despite the similar price points and form factors they serve two different purposes.
The Raspberry Pi is a full computer shrunk down and made (relatively) cheaply.
The Arduino is a cheap microcontroller made large for convenience. Things like on-board voltage regulation and USB make prototyping much easier. But these conveniences cost money and make the total cost (relatively) expensive. A professional might (keyword: might, don't come at me professional hardware designers!) use an Arduino board for creating a prototype and then design fully a custom product based on what they learned.
You wouldn't (in 2021) try to build a computer around the microcontroller in the Arduino because it's so underpowered but you might use it for a smart, cheap motion sensor with a long battery life.
This comment might have been made in reference to the company name (ArduCam) and not the actual product being reviewed (a camera for the Raspberry Pi)—I don't believe this camera has any support for Arduino at all.
Not everyone living in first world countries. For me, arduino is cheap(clone), required much less power than any SBC. Power outage is common in my area. Memory card of any SBC can't survive frequent power outage .
things generally in the same family as an arduino, such an STM32F7 based flight controller for a hobby UAV, can have features like eight UARTs and other things not found on a raspberry pi. and also in a much smaller form factor. There are some that measure 20x20mm.
[+] [-] braincode|4 years ago|reply
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Can I use it on my telescope?
With a bit of modification, yes. We have seen many astrophotography projects with the official Pi cameras, you can follow the same instructions.
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I wonder if it can be also modified for PCB inspection microscope purposes? I have a C-mount lens already:
https://www.aliexpress.com/item/1005002033939765.html
More context on the idea I've been thinking about on: https://twitter.com/braincode/status/1464964031576379400
So... can this new Arducam 16MP autofocus be easily modded so that it:
1) Conserves the autofocus feature.
2) Accepts a C-mount lens like the one listed above with the right distance from the sensor?
[+] [-] amelius|4 years ago|reply
[+] [-] lemariva|4 years ago|reply
[+] [-] anfractuosity|4 years ago|reply
[+] [-] jcun4128|4 years ago|reply
[+] [-] lemariva|4 years ago|reply
[+] [-] WaitWaitWha|4 years ago|reply
[+] [-] lemariva|4 years ago|reply
[+] [-] baldeagle|4 years ago|reply
[+] [-] lemariva|4 years ago|reply
[+] [-] omginternets|4 years ago|reply
Is HN aware of any good camera modules for such a purpose?
[+] [-] jeffreygoesto|4 years ago|reply
[0] https://www.systemplus.fr/reverse-costing-reports/stmicroele...
[1] https://www.st.com/resource/en/data_brief/vd5640.pdf
[2] https://i150.photobucket.com/albums/s119/turntwomotorsports/...
[+] [-] anfractuosity|4 years ago|reply
[+] [-] textcortex|4 years ago|reply
[+] [-] djbeadle|4 years ago|reply
The Raspberry Pi is a full computer shrunk down and made (relatively) cheaply.
The Arduino is a cheap microcontroller made large for convenience. Things like on-board voltage regulation and USB make prototyping much easier. But these conveniences cost money and make the total cost (relatively) expensive. A professional might (keyword: might, don't come at me professional hardware designers!) use an Arduino board for creating a prototype and then design fully a custom product based on what they learned.
You wouldn't (in 2021) try to build a computer around the microcontroller in the Arduino because it's so underpowered but you might use it for a smart, cheap motion sensor with a long battery life.
[+] [-] geerlingguy|4 years ago|reply
[+] [-] pyprism|4 years ago|reply
[+] [-] MrBuddyCasino|4 years ago|reply
- energy consumption
- latency
- learning experience
- the challenge of writing embedded software
- wanting certain peripherals
...
[+] [-] walrus01|4 years ago|reply
https://www.google.com/search?client=firefox-b-1-d&q=stm32f7...
https://oscarliang.com/f1-f3-f4-flight-controller/
for instance: http://www.mateksys.com/?portfolio=f722-se