Trying to understand this diode-based level shifter : AskElectronics
Why You Can't Use Resistors as a Voltage Regulator | Majenko's Hardware Hacking Blog
Making 3.3V, 5V Voltage Regulator Circuit with Diodes and Transistors | Homemade Circuit Projects
Lab: Level Shifting – ITP Physical Computing
5V to 3.3V logic level translation/conversion/shifting: how to interface a 5V output to a 3.3V input. – next-hack.com
Taking It To Another Level: Making 3.3V Speak With 5V | Hackaday
External power to WEMOS mini using 3.3V 1W Zener diode - Electrical Engineering Stack Exchange
Taking It To Another Level: Making 3.3V Speak With 5V | Hackaday
5V to 3.3V logic level translation/conversion/shifting: how to interface a 5V output to a 3.3V input. – next-hack.com
3.3V Zener Diode 1N4728A: Pinout, Uses Tips & Datasheet
RPi GPIO Interface Circuits - Wiki do Bernardino
The Quest For A Simple Level Converter | Big Mess o' Wires
Multiple Voltages 3.3V, 5V From 12V Without ICs Or Inductors
3.3V Sensor Interfacing - ABDien
Collection! 5V to 3.3V level of 19 kinds of methods and techniques - Programmer Sought
5V to 3.3V logic level translation/conversion/shifting: how to interface a 5V output to a 3.3V input. – next-hack.com
5volt To 3.3volt Using Diode and Resistor,How to use 5v to 3v supply,Convert 5v to 3.3v Resistor. - YouTube
Connect LED to 12v 5v and 3.3v PCI power box upgrade - YouTube
IO Level Conversion 3.3V to 5V for ESP8266 | Circuits4you.com
Is there any bidirectional 5v-3.3v level shifter? - Electrical Engineering Stack Exchange
Electronic – arduino – Solution for level-translation (3.3V Arduino Due 5V shield) – iTecTec
Designing a Simple Over-Voltage Protection Circuit using Zener Diodes
Taking It To Another Level: Making 3.3V Speak With 5V | Hackaday
Bi-Directional Voltage Level Converters 3.3V to 5V
Zener Diode - 3.3V 1W - 1N4728 - BC Robotics
5V to 3.3V logic level translation/conversion/shifting: how to interface a 5V output to a 3.3V input. – next-hack.com
Is this a practical minimalist 5 V-to-3.3 V circuit? - Electrical Engineering Stack Exchange
