Metaboard/2010 activities: Unterschied zwischen den Versionen
Reox (Diskussion | Beiträge) new notes from 2011-03-20 |
Keine Bearbeitungszusammenfassung |
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* Board voltage: 3.3V (originally 5V, but 3.3V gives cleaner USB communication and should save power in the sensor units) | * Board voltage: 3.3V (originally 5V, but 3.3V gives cleaner USB communication and should save power in the sensor units) | ||
* Flashing sensors using serial interface using the [[Metaboard/2010 activities/6-pin auto-detecting programming]] | * Flashing sensors using serial interface using the [[Metaboard/2010 activities/6-pin auto-detecting programming]] | ||
* Power supply: "18650" (z.B. von [http://www.dealextreme.com dealextreme]) | |||
=== Random implementation detail notes === | === Random implementation detail notes === | ||
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* [http://sebastian.arttis.net/main.php?g2_itemId=10481 2011-03-15]: Hacking arround with [[HP54645D_Mixed-Signal_Oscilloscope]] and see whats going on at sck, sdi, sdo and irq | * [http://sebastian.arttis.net/main.php?g2_itemId=10481 2011-03-15]: Hacking arround with [[HP54645D_Mixed-Signal_Oscilloscope]] and see whats going on at sck, sdi, sdo and irq | ||
* [http://sense.reox.at/rfm12/ 2011-03-20]: WOOOHOOO got something over the air, used mostly code from [http://www.tahina.priv.at/electronics.html#index2h1 here]... also: datasheet gone wrong... port with ANT marking is in real GND, ANT Port is next to it! | * [http://sense.reox.at/rfm12/ 2011-03-20]: WOOOHOOO got something over the air, used mostly code from [http://www.tahina.priv.at/electronics.html#index2h1 here]... also: datasheet gone wrong... port with ANT marking is in real GND, ANT Port is next to it! | ||
* 2011-03-25: If it works at 5V and doesn't at 3.3V, just try adding a startup delay. Hacking on based on [http://jeelabs.net/projects/cafe/repository/show/RF12 jeelabs' RF12 library] now. | |||
== Resources == | == Resources == | ||
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** [http://www.mikrocontroller.net/articles/RFM12 RFM12 on mikrocontroller.net]: german description of RFM12 commands | ** [http://www.mikrocontroller.net/articles/RFM12 RFM12 on mikrocontroller.net]: german description of RFM12 commands | ||
** [http://www.mikrocontroller.net/articles/AVR_RFM12 AVR RFM12 on mikrocontroller.net] | ** [http://www.mikrocontroller.net/articles/AVR_RFM12 AVR RFM12 on mikrocontroller.net] | ||
** [http://olek.tk/en/rfm12.php olek.tk's RFM12 tips], including the magical FE reset command | |||
* DMX: | * DMX: | ||
** [http://www.maxim-ic.com/datasheet/index.mvp/id/1111 Maxim RS485 controllers] | ** [http://www.maxim-ic.com/datasheet/index.mvp/id/1111 Maxim RS485 controllers] | ||
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* USB: | * USB: | ||
** [http://www.beyondlogic.org/usbnutshell/usb1.shtml USB in a NutShell]: a good summary of the USB spec | ** [http://www.beyondlogic.org/usbnutshell/usb1.shtml USB in a NutShell]: a good summary of the USB spec | ||
* 18650 / LiPo charging: | |||
** [http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries battery university on Li-Ion batteries] | |||
* Metalab projects: | * Metalab projects: | ||
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[[Kategorie:Projekte]] | [[Kategorie:Projekte]] | ||
[[Kategorie:Arduino]] | [[Kategorie:Arduino]] | ||