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💬 ArduCure

openhardware.io last edited by openhardware.io

https://www.openhardware.io/view/329/ArduCure
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@AWI said: Can you share what is in the box? I am getting curious.. arduino_nrf24l01.rar
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@nrf24_is_hard When I sent data between an Aduino and the RPi I discovered that I have to make the the receiving and the sending structs the same size AND the variables be on 4 byte boundaries. Change your char name[15] to char name[16] Another challenge is that the number of bytes of type int are different. If I remember correctly, Arduino Uno is 2 bytes and RPi is 4 bytes. To make matters worse, some compilers make the least significant byte the first byte of a word and others make it the last byte of a word. eg, sending the value 1 would be received as 16777216 (0x00000001 vs 0x01000000) There are a lot more gotcha's OSD
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@Homer I've made a 2 double LED dimmer as well works very good and can easily be extended with more dimable leds. See my project here
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Please append support RS485
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@terxw okey, thanks for reporting back !! Let me know if there is something else. This is a 0.5v so I'm open for improvements.
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@legeantvert said: On the same way, i dont understand how and where are stored the values inside the gateway if not used on each reception, are they stored somewhere to be able to answer them when serial request arrive? You could bypass this on some kind of events obviously ! Actually my perl gateway is acting as the server Vera is for the arduino gateway. So from there I can trigger external URL, store data in a sqlite3 database... and so on !

💬 ArduCure

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