I've seen many incarnations of the small projects where people take servo motors and build up a simple robot arm with popsicle sticks. Then control it with another arm made from sticks with pots at the joints to give a input to the robot. My question is, has anyone ever done this but remotely? I'd like to use the idea on a robot I'm building but somehow link up two arduinos to control the arm (arms actually) remotely. I assume that the best approach would be two adruinos with some sort of radio link over I2C?
It think it would be fairly straight forward to use NRF20L01+
Read through the Simple nRF24L01+ 2.4GHz transceiver demo
The control arduino would have the pots, read them and construct a packet of data to send.
The receiving arduino would get the data packet and use the information there to command the servos.
can you please send me link like that but for the hc 05 i am having trouble with it, thank you.
I used two nRF24L01's in my robotics project to transmit data to and from my PC through the serial port. The devices are RF transmitter/receivers that you can use with the Arduino to exchange data over a reasonable speed at a reasonable distance. I found them to be quite reliable and easy to use. Plus, they are cheap.
The Drone Bot Workshop YouTube channel has an excellent tutorial on how to use the nRF24L01:
--Mario