Logic Level Conversion, when needed?

Опубликовано: 06 Июнь 2026
на канале: Tech-Relief
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In this video we talk about logic level conversion from 3.3 Volt to 5 Volt and vice-versa.
When is it needed and how to achieve it?

Links to datasheets, devices and information:
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Seeed Studio XIAO ESP32-S3: https://www.aliexpress.us/item/325680...
74LS06 Open-Collector Hex Inverting Buffers: https://www.ti.com/lit/ds/symlink/sn7...
74LS07 Open-Collector Hex Buffers: https://www.ti.com/lit/ds/symlink/sn7...
2N7000 MOSFET: https://ww1.microchip.com/downloads/e...
4-channel I2C-safe Bi-directional Logic Level Converter: https://www.adafruit.com/product/757
BSS138 MOSFET: https://www.onsemi.com/pdf/datasheet/...
Bi-directional Logic Level Conversion Circuit: https://www.gadgetronicx.com/logic-le...
SN74LVC245A Octal Bus Transceiver: https://www.ti.com/lit/ds/symlink/sn7...
8-channel Bi-directional Logic Level Converter: https://www.adafruit.com/product/395
TXB0108 8-Bit Bidirectional Voltage-Level Translator with Auto-Direction Sensing: https://www.ti.com/lit/ds/symlink/txb...

Chapters:
0:00 Intro
0:45 Discovering the voltage that is accepted as a HIGH level by a 5 Volt Arduino UNO.
3:03 Testing a 3.3 Volt ESP32 directly connected to a 5 Volt Arduino.
6:00 Options for level conversions.
11:16 Online resources for level conversion & datasheets.
14:23 Bread board with devices to Test.
15:29 Testing output of the 74LS07 circuit.
16:19 Testing output of the 2N7000 MOSFET.
17:16 Testing output of the 74LS06 circuit.
17:38 Conclusion.