PBP projects for R/C models

[Kenjones1935]

The outputs of PORTC.1 and PORTC.2 are high all the time.
Why? In other code snippets PAUSE seems to allow action to continue. I hope you guys see that I am being stupid.

' PORTC.0 'High is R/C.  Low is PIC control
TRISC = %11110000

main:
low portc.0
gosub straightforward
pause 4000
goto main
end

StraightForward:
pwm 1,120,50
pwm 2,120,50
return

[Kenjones1935]

As soon as I typed "submit" I saw that I had left out the H in HPWM. Thank you sooo much!

Ken

[Kenjones1935]

First I used my 44 pin PIC (with no PICKIT 2 board) on a toy level car. Toy level means bang-bang control. It worked.

Now I am running a model level car with PWM control. I miss wired CCP1 and CCP2. Steering was going to the wheels. Driving was going to the steering servo.

I thought I had double checked this. Clearly my double checker was flawed. I shall rewire and report back.

Thank you for your patience.

[Kenjones1935]

Yup,

Now when it sees something in front it stops then goes backwards. And when nothing is in front it goes forward for all its worth. Such a difference getting the steering servo and the wheel electronic speed control signals actually going to the servo and the ESC.

Now to calibrate HPWM for this fancy ESC. It seems very similar, but not exactly like the old not-so-fancy ESC. There are still funny rules around switching from forward to reverse and visa verso.

Ken

[Kenjones1935]

Another 'minor' problem. The new HPI Sprint has the steering servo mechanically opposite my older car. With this car steering right is smaller PWM pulses. Steering left is larger.

Soooo Things are working as they used to. My problem now will be getting a reaction time that is reasonable given the speed of the car. I have not taken it to a gym or outside. When I hold a big cardboard in front of the car it does turn. Soon enough? We'll see... I can slow down the wheels, but this is supposed to be a race car.

Ken

Ken

[Kenjones1935]

It worked better before I went in and to get my video camera. However, you can get the idea from this clip. There are still some mysteries with the HPI's new Electronic Speed Control SC-15.



Little by little....

Ken

[Ioannis]

I think the car is been autonomous enough and wants to escape now! Was very funny how it got away under the white car!

Keep up the good work Ken.

Ioannis