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THEMA: Arctic Hare mod by Jussi

Arctic Hare mod by Jussi 2 Wochen 1 Tag her #17628

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Hi
Thanks. The 1h explained all my problems.
Now i understand that it works only sometimes ;)
Thanks and best regards,
Bjoern
PS: Today it is raining :(

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Arctic Hare mod by Jussi 2 Wochen 1 Tag her #17631

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In France it's same for all the Week.So i can't test my new RFID PCB1.3 hardware

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Arctic Hare mod by Jussi 2 Wochen 1 Tag her #17632

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Hi
I found a rain break and played a litle bit.
One question about mower motor: I have 2 mower motors. Original shop motors.
But in the moment the gras is a litle bit longer or wet i got Error Mower. I adjust the power in Settings to 100W
but this is not enough. Is there a way to put in for example 150W or higher? The mower Error stops the robot complete.
In the past with a different firmware i think that the mower motor only stop a short time after reaching the max power. Then the motors automatic start again. Is there a chance to get this function?
Best regards and wishes for sun
Bjoern

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Arctic Hare mod by Jussi 2 Wochen 1 Tag her #17633

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In the past i did exactly the same as you and increase the max motor power but its A VERY BAD IDEA. I finally destroy the Motor Driver :woohoo:
Normaly you have 3 stages on power management 2 are softwares (Pfod setting motor max power) ,at 80% to start the spirale and 100% to stop for 1 minute the motor and restart automaticly .
You need to see this behaviour before the last stage.
The last stage it's better to never go in it, It's the driver error itself and need a full restart of the mower.

So better to use a big thermal mower for the first mowing of the season and after leave the robot only cut some cm each day in auto mode.

In the code , accel of the motor (during the 2 start second) sometime we don't read the power to avoid stop on sense peak ,but again it's very dangerous if the blade is stop by piece of wood for example ,it can after 20 automatic starting try : destroy motor or driver.

For a long life of the driver and motor ,try to find the correct Max power to avoid hardware protection (Same for drive motor)

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Arctic Hare mod by Jussi 2 Wochen 1 Tag her #17634

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Hi
Do i understand in the right way?
If i setup for example 100W:
1. At 80% (80W) of the max power in settings the mower start with spirale
2. At 100% the mower motor stop for 1min

In moment i got a Mower Error 255 in high gras. Robot beebs and i can Clear Error and start automatic again. Without reboot.
So what is the perfect power in settings? 70W?
Best,
Bjoern

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Arctic Hare mod by Jussi 2 Wochen 1 Tag her #17635

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100W or 150W are not possible with the PCB1.3 motor driver.
How have you connected the 2 motors ??
Driver motor are only 2 or 3 A for each canal so 48W max for each motor
My PowerMax value is 24.2 watt.with one motor and the paralell shunt on the 2 driver output (original config)

If you put 100 W the soft wait 80 W to start spirale but certainly at 30W the driver itself is in error and it's certainly why you never see the 2 first stage (Spirale and auto restart)

The error you have is maybe hardware protection on the driver see pinMotorMowFault and driver datasheet, but it's Strange that you can restart without reboot ?
Or again a bug in the soft :P

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Arctic Hare mod by Jussi 2 Wochen 23 Stunden her #17636

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Good morning
My mower motors are paralel with paralell shunt on one driver out, i guess.
At this time i dont found explaining how to connect 2 mower motors. Is this not ok?
Ok, i will try a lower value. But it is raining :(
Best,
Bjoern

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Arctic Hare mod by Jussi 2 Tage 20 Stunden her #17698

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Bernard, do you have perimeter islands? I have two and I found mower today tracking around one island.. dont know how many times it goes around but looked like endless.

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Arctic Hare mod by Jussi 2 Tage 13 Stunden her #17705

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Hello
Very good question. I have often same problem. I have 5 islands :silly:
I have seen here one solution from one people. He said that we have to place a big flower cup or a big stone at one end of the circle. When the bumper will hit this part the mower will stop circle.
But i think this is not a nice solution. Perhaps we can analyse the Odometry on both wheels. If there is a longer time a kind of circle movement the mower can stop and turn for example 90 degrees away.
This is only an idea. Actually i dont know if it is possible...
Best regards,
Bjoern

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Arctic Hare mod by Jussi 2 Tage 12 Stunden her #17706

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I have 5 islands

RFID Mandatory.

looked like endless.

Normaly until bat is low and undervoltage shutdown all the power.

I have 1 island arround a big tree and i use a tag on the wire so the mower rotate 90 deg and go the the main perimeter wire.

If you want i can make a small video.

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Arctic Hare mod by Jussi 1 Tag 23 Stunden her #17710

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Ok, thanks. Mechanical obstacle is great and simple temporary solution.
My ESP32 is still held by chinese mailman so rfid solution is not possible yet.

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Arctic Hare mod by Jussi 1 Tag 20 Stunden her #17712

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Hi jussip.

You have a pn5180 reader ?
How have you manage the obstacle (if the mower hit obstacle normaly it make a circle arround but again track arround the island)

I have other platform and i am going to test the pn5180 at 10 cm of the ground with pi zero w (maybe ok after removing my last bug on checkserial) and without screen or camera.

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Arctic Hare mod by Jussi 1 Tag 19 Stunden her #17713

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Obstacle settings are default for now but islands are quite close main perimeter. If placing obstacle right it might work without changing settings. another island is perfect circle around well, diameter 1,6 m. second one is not so round around mountain pine, diameter 1-2 m
I have pn5180 reader, 7 cards and one tag

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