I agree with you completely
looks good, but the gps still need to on the top of motor, right ?
Yes, it should be on top of the motor but having installed a classic servo, now I expect the steering to turn first (PWM> or <1500 us), then, when the boat is aligned with the steering direction, I expect the steering straighten out (PWM 1500 us). If the compass were above the engine the steering would certainly turn but once the desired direction was reached the steering would return in line with the boat even if it would not have turned at all. Then it would try to turn again but would return to the forward direction almost immediately. Then the steering would continue to turn and straighten.
In the previous setup where I had installed an ESC that controlled the steering, things were different. In fact, once steered (PWM > or <1500) the steering would not return to the position in line with the boat but would continue with the direction taken (since in an ESC with bidirectional motor pwm 1500 us means staying still)
I don’t know if I explained myself well… In any case I will start doing the first tests with the compass attached to the boat. I will see the behavior with the compass on top of the engine later.
thanks， how is it going ?
this video is i test loiter mode ! since ok ?
Hi GPSanchor, yesterday I tested my trollin motor in the water. Unfortunately I don’t have any video because I was too busy looking for the right settings. I still haven’t been able to achieve a good calibration. I followed the Tuning Turn Rate — Rover tutorial but something is still wrong. In any case I tested the LOITER mode. In general we would say that I managed to keep the boat stationary for a few minutes in one point but it corrected the direction too late and therefore it turned too much to one side and then too much to the other. But somehow it reached the anchor point. I will definitely still have to correct some parameters but I’m on the right track. Unfortunately I will only be able to carry out further tests at the end of next week.
bye
yes, it seems to work. but from the video the “steering” always seems to rotate from the same direction. Maybe because you always rotate your hand in one direction?
first ! you need to check your compass, it is very very important!!
i test it is all ok, i am doing a rx boat to test it now! maybe 1week i will make the video of the boat working on loiter mode!
So, something is moving. I followed all possible precautions. At times it seems to work but after a short time the boat seems to completely lose direction. As you can see from the video, the boat holds its position for almost a minute, then moves away about ten meters from the anchoring point and then returns with some difficulty…
it can not work for
SERVO1_FUNCTION = 26 (GroundSteering)
SERVO3_FUNCTION = 70 (Throttle)
this mode!
i know why it cant work. bcs , the turning not just use servo 1, it is servo1and3 work tegether. that is why it can not work. we need to change code， let the servo 1 and 3 working independetly
Hi GP Sanchor, I think you’re right. I tested my engine yesterday too but I couldn’t get it to work decently. Unfortunately I don’t know how to modify the code. And do you know how to do it?
i can not ! but i think if let the servo 1 turning indenpently ,and motor just need to move, the loiter mode will working on single power sistem.
In any case I don’t understand why it shouldn’t work. it should be (almost) the same situation as in the video https://youtu.be/IBptvWRT_Tg?si=rI56LqPVIxhnX8Aw
with the only difference that the rudder is in the bow. of course, being in our case a motor-steering one, I would only expect a faster response from the boat
Hi, have done this setup to make my kayak autonomous also. Same trolling motor but different steering. I’m using a servo and a steering link to a 3D printed arm that is locked to the shaft for steering. Simple but it works. My tunings is auto mode are not very good, but in loiter there work amazingly well. I have the gps along with the other electronics under the seat of the kayak. Just a suggestion. Maybe the gps being away from the motor helps.
hello El tigre and thanks for the advice. in fact (as per the title) I was convinced that the problem was the compass and the GPS. and in fact I moved it away from the esc. about ten cm no more. I will check your advice.
In that little box is tbe FC, ESC, power module, and even telemetry radio. And the gps on the other end. I put the box under the seat of the kayak and run cables to the battery, servo, and the trolling motor. The trolling motor at full throttle pulls 20+ amps. Are you using yours unamaned? I ride on mine I think the weight helps.
I tried the boat with one and with two people but nothing changed. What esc did you use for the engine?