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Amazon.com: KeeYees 10pcs 4 Channels IIC I2C Logic Level Converter Bi-Directional Module 3.3V to 5V Shifter for Arduino (Pack of 10) : Electronics
![raspberry pi - Simplest uni-directional level shifter (3.3V -> 5V) - Electrical Engineering Stack Exchange raspberry pi - Simplest uni-directional level shifter (3.3V -> 5V) - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/vt4qm.png)
raspberry pi - Simplest uni-directional level shifter (3.3V -> 5V) - Electrical Engineering Stack Exchange
![5V to 3.3V logic level translation/conversion/shifting: how to interface a 5V output to a 3.3V input. – next-hack.com 5V to 3.3V logic level translation/conversion/shifting: how to interface a 5V output to a 3.3V input. – next-hack.com](https://next-hack.com/wp-content/uploads/2017/09/A5I0.png)