Thursday, 16 February 2017

arduino - Level shifter default high problem



I recently bought a logic level converter for interfacing Arduino Uno with ESP8266. I had decided to use SPI communications between the two but after making all connections correctly it failed. After checking the shifter with a multimeter I found out the pins were high even with no signal applied (only HV and LV voltages are applied). This is fine for I2C but not for SPI. Is it possible to perform SPI with this shifter? If yes, then how?


enter image description here


Product link: here.




-

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

arduino - Can I use TI's cc2541 BLE as micro controller to perform operations/ processing instead of ATmega328P AU to save cost?

I am using arduino pro mini (which contains Atmega328p AU ) along with cc2541(HM-10) to process and transfer data over BLE to smartphone. I...