How much approximately will cost the cost of independent development of mini robot for arduino?

I want to make a baby gift with your own hands.As by profession I am a technician - programmer, so decided to try myself in working with arduino.I want to make a mini robot that will move and make sounds.
1)How about the cost out such a project?
2)how long and hard to create?
3)Where to get information and to make an order?
4)is There a decent analogues arduino?
5)it be Cheaper to buy a toy robot?
Thank you!
March 12th 20 at 08:42
3 answers
March 12th 20 at 08:44
1. From two thousand (the Board itself, a pair of motors with gear, motor controllers) to infinity.
2. Depending on the skills
3. Aliexpress
4. stm32 (much harder) or ESP8266 but the meaning for a start I do not see them
5. Depends on what you need the result - the skill build/design or programming skill. With the finished toy, you will be able to do what it is intended. Developing from scratch - anything you want. If so and so, only individually, so it was fun.
March 12th 20 at 08:46
There are all sorts of ready kits for Arduino, pushes away from them.
For example here (in Belarusian, if that)
March 12th 20 at 08:48
1) At the most basic level, probably, thousands of 5-7 you can meet, or even less.
2) There are plenty of ready instructions.
You can make stupid guides, but a basic knowledge of electronics and programming skills are welcome.
3)
Where to get information

books, youtube, google
and order everything you need?

ampere cheaper on aliexpress
5) easier (but not cheaper) — lego mindstorms
if the child is of appropriate age, it will be interesting and useful for myself along with my dad to assemble and program the robot.

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