Hi, i have a small robot with: - two DC Motors http://www.pololu.com/product/2212 - Arduino Nano - L293D H-Bridge - nrf24l01
I managed to command the robot from PC via nrf24l01, but after two or three commands the Arduino on the robot freeze. Commands are simple: 1 to go forward for 2 sec and stop, 0 for go backward for 2 sec and stop.
I put three 0.1 uF capactors like here: http://www.pololu.com/docs/0J15/9.
I have a 2 cell Li-Po 7.4V 1000mAh(25C) connected to a LM7805. Motors and Arduino are connected to the 5V output of the stabilizer and the nrf24 module to 3.3V Arduino output pin.
LM7805 maximum output current is 1.5A and motors eat 120mA without load. What could be the problem?