Customer:
I want to connect a 3.3V sensor to Croduino Basic2, but the 3V3 output is not at 3.3V - it’s at 4.7V. Is this expected? If so, how can I make a transition to 3.3V for I2C communication? I know there is a logic level converter for adapting SCL and SDA lines, but for it to work I need a 3.3V power supply for its Low Power side.
Original message (Croatian)
Molim pomoć.
Htio sam spojiti 3.3V senzor na Croduino2 pločicu no 3V3 izlaz nije na 3.3V nego na 4.7V?
Da li je to očekivano? Ako da - kako napraviti prijelaz na 3.3V za I2C komunikaciju? Znam da postoji konverter logičkih razina za prilagodbu SCL i SDA linija ali da bi radio potrebno je imati i napajanje od 3.3V koji ide na njegovu Low Power stranu.
Originally submitted via email support on 30 December 2017. Migrated to the forum for community visibility.
Soldered Support:
Yes, that is expected. The output on Croduino Basic2 is 5V, and it can be somewhat lower depending on your power source (likely USB). 4.7V is completely fine.
To change the logic level of the signal, you need a source of that voltage. Our logic-level converter has a small regulator built in that will create 3.3V from a 5V source, so you do not need an additional power supply.
Original message (Croatian)
hvala na javljanju!
Tako je, očekivani izlaz na Croduino Basic2 pločici je 5V, a možda biti i nešto niži - ovisi o Vašem izvoru(vjerojatno USB). 4.7V je sasvim u redu.
Da biste promjenili logičku razinu signala, morate imati izvor tog napona. Naš logic-level converter ima i mali regulator na sebi koji će iz 5V izvora napraviti 3.3V - tako da ne trebate dodatni izvor napajanja: Soldered: Open-Source Electronics, Boards, Sensors & Modules – Soldered Electronics
ekipa e-radionice Vam želi puno uspjeha u novoj godini!
Customer:
Is 3V3 a misleading label on the Arduino Nano board?
Original message (Croatian)
Hvala na odgovoru. (Budem naručio pločicu sa slijedećom narudžbom.)
Znači 3V3 je pogrešna oznaka što se tiče Arduino Nano ploćice?
Hvala,
[name removed]
Soldered Support:
No, I overlooked that. There is a 3.3V source on the Croduino Basic2 board, but you won’t need it with this adapter.
Original message (Croatian)
nije - previdio sam taj dio.. postoji izvor od 3.3V na Croduino Basic2 pločici - ali s ovim adapterom ga nećete ni trebati.