you can control Robotic Arm remotely using many wire and wireless methods to do many tasks such as holding things and can be used in a lot of medical applications like surgery and holding micro tools which can’t be controlled with human arm, what gives a great accuracy, and similarly in industrial and agricultural applications.
If you think to buy a robotic arm, it costs you about $300, but if you try to make it yourself in addition to gain more experience in fabrication, it’ll cost you about $150, which means you provide almost the half, and its fabrication isn’t a very hard process, so what’s your choice ?
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.