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.

I see your points and its valid. If battery life is not a problem and the project is more than blinking a light, Rpi is way to go.

BTW Arduino boards can do WAY more than blinking LEDs. I guess most of the people still call Arduino the original 8bit board but since then we developed a ton of very powerful boards capable of running machine learning and instrial tasks. In certain environments it's actually better and more reliable to use a powerful MCU instead of a Linux SBC

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.

Ah yes, didn’t realise that.

a good point there! ;) No, it doesn't.

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 .

Invariably, someone always asks this question. For most things I'd prefer a Pi Zero, less hassle, familiar environment. But consider:

- energy consumption

- latency

- learning experience

- the challenge of writing embedded software

- wanting certain peripherals

...

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.

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

I would recommend looking at the official Arduino Portenta, it's a dual core Cortex m7 + Cortex M4 microcontroller board with a ton of features and build to industrial standards.. It's very very powerful https://store.arduino.cc/products/portenta-h7