Testing
Throttle Brake Circuit
RC Testing
This Section shows the development of the circuit needed to control throttle and brakes. Usually development boards have a 5V logic, which is enough voltage to control the vehicle. The preliminary board used has a 3.3 V logic, I had to design around that. The solution to the 3.3 V logic was the circuit displayed in figure 3.
Figure 1
Figure 2
Figure 3
This section shows the testing conducted to arrive at a desirable RC circuit. The RC circuit is to flatten out the PWM output signal of the previous operational amplifier circuit. A variable DC volatage is required to control throttle and brake on the vehicle.
Figure 3
Figure 4
After some research a more adequate/cheaper board was found with 5 V logic, therefore the previous circuit(Figure 3) will not be compatible. This drove me to redesign the throttle brake circuit, but this time I added a POT to adjust gain. This circuit (Figure 4) will be compatible with any board as long as it has PWM outputs.