Timeline for Power supply while using a shield
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 20, 2019 at 1:16 | comment | added | Peter Jennings | Let us continue this discussion in chat. | |
| May 19, 2019 at 15:31 | comment | added | Juraj♦ | it uses Vin, but it can be used with Arduino Zero, so it can be used with SparkFun's RedBoard Turbo | |
| May 19, 2019 at 14:48 | comment | added | Peter Jennings | @Juraj Have a look at the manual audeme.com/downloads.html and tell me what you think. Maybe I'm wrong, but my reading is that it takes the raw (9V say) power from an arduino and has it's own on board power conditioning circuits. If you look at the photograph of the MOVI there are some components that look suspiciously like a power supply (an inductor for example) near the power input pins. Unfortunately, unlike SparkFun) Arduinos do not provide a circuit diagram of the MOVI to confirm this. | |
| May 19, 2019 at 14:30 | comment | added | Juraj♦ | does the shield have a power regulator and takes the power from Vin? I don't believe it. | |
| May 19, 2019 at 14:05 | comment | added | Peter Jennings | @Juraj The MOVI manual clearly states that it takes its power from the Arduino and that it should be between 7V and 16V not 5V and Please note: MOVI cannot be powered through a USB power supply or the USB cable of the Arduino board as the voltage provided is less than 6V. So if the input supply to the RedBoard Turbo (<=6V) was passed to the MOVI it would not work. | |
| May 19, 2019 at 13:40 | comment | added | Peter Jennings | @Juraj Sorry, typo | |
| May 19, 2019 at 12:50 | comment | added | Peter Jennings | @Jraj If you compare the schematic of the original RedBoard cdn.sparkfun.com/datasheets/Dev/Arduino/Boards/RedBoard-V22.pdf with that of the Turbo cdn.sparkfun.com/assets/6/5/4/5/0/RedBoard_Turbo.pdf There is no 5V regulator on the Turbo board, all it does is pass the 5V from the USB straight across to the 5V socket on the edge connector. There doesn't appear to be any connection between that and the rest of the board. This query is about powering via the barrel connector. The original board does have a 5V regulator and it is connected to the edge socket. | |
| May 19, 2019 at 6:08 | comment | added | Juraj♦ | you understand it wrong. the answer is wrong. the shield takes 5 V from the 5 V pin of the board and the regulator on the board can provide it. the Uno has a different regulator and needs a different input voltage but provides same 5 V on 5 V pin. problem is if the external power supply can provide the necessary current and that doesn't depend on voltage | |
| May 18, 2019 at 17:47 | history | edited | Peter Jennings | CC BY-SA 4.0 |
Add note about logic levels.
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| May 18, 2019 at 17:35 | review | First posts | |||
| May 19, 2019 at 0:54 | |||||
| May 18, 2019 at 17:32 | history | answered | Peter Jennings | CC BY-SA 4.0 |