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Madsing

Tomytec Bus Automation on the Yukari layout

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Madsing

Hello,

I don’t seem to have access to www.biuub.de. You can also post your photos directly on this forum.

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Frank Blascheck

Photos I inserted should now be visible.

 

Which electromagnet you used 5V or 12V has an exact designation. 

Can you maybe give me a list of the parts I need.

 

 

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tossedman
Posted (edited)

すごいね!

Wow! I just found this thread. There's a lot of great engineering going on here. Well done and thanks for sharing.

Edited by tossedman
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Madsing
On 1/2/2021 at 9:35 PM, Frank Blascheck said:

Which electromagnet you used 5V or 12V has an exact designation. 

 

I use 20/15 suction 2.5KG 25N mini electromagnet solenoids.

This is the link to purchase them: https://www.aliexpress.com/item/32815809960.html

20/15 means 20x15mm. From this page you can purchase three versions: 6V, 12V and 24V. I use the 24V version, but I power it with 5V only. The reason I do this is to reduce the heat dissipation. The 24 volt version has a resistance of 93Ω, so the current at 5 volts will be around 50mA.

I have uploaded the schematics of the bus blocks. The magnet is connected to JP3. It is controlled by an ATTiny 85 microcontroller (on the left), but of course you can use any way you want. The microcontrollers are connected to a Raspberry Pi using an I2C bus. The right part of the schematics is the hall sensor (OH3144) to detect the arrival of the bus.

 1052972798_Screenshot2021-01-04at9_45_20AM.thumb.png.8b23d98c2a0744b595c455792f35e251.png

 

 YukariBusBlockSCH.pdf

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Frank Blascheck

Thank you, everything ordered so now wait 3-4 weeks.

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