3.3V Usage

[emir]

Hello,
how can I connect a module to a 3.3-volt board like Arduino Due or ESP boards, and do I need a logic level shifter for SPI or not?
Also what steps should I take for voltage levels UR and UA?
Regards

[Christian_Bylund]

Hello,
how can I connect a module to a 3.3-volt board like Arduino Due or ESP boards, and do I need a logic level shifter for SPI or not?
Also what steps should I take for voltage levels UR and UA?
Regards

The Bosch CJ125 used on the Lambda Shields have 5V interfaces, why go through all that trouble instead of just use a 5V Arduino? If you need ESP32 connectivity it is easier to interface it to an Arduino than the Lambda Shield 2 to an ESP32.

Thank you.