I am stuck on a problem with RF Module. I am trying to make an RC Car and facing a lot of problems while doing so.
I am using a 433 Mhz RF module, HT12E-D encoder decoder, L293D and 2 BO motors(DC). My circuit works fine with 100-200 RPM Motor but as soon as I use a faster motor such as a 300 RPM motor the circuit stops receiving any signal due to which the car just moves according to the last signal.
As soon as the high RPM Motor is connected following happens:
- The transmission board stops working(when any other button is pressed no response is there)
- The data pin LED continuously blinks
- Have to stop the motor forcefully to continue transmission
The best guess would be the motor driver circuit is taking up all the current. so I tried two different power sources for the circuit I powered up the Motor Driver circuit using 7.4V li-ion Battery and the receiving part with a regular 9V battery. but still the same problem is there. I am thinking of using another Encoder decoder IC P2272 or HC148. Any suggestions? Please help