Logic level converter - SparkFun

The module allows to exchange data between systems that use two voltage levels: 3.3 V and 5V. Allows connection of serial interfaces: UART, SPI and I2C.

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Price 6,90 zł



Product replaced by the new version: logic-level translator bidirectional, four-channel - SparkFun.



Product description: the logical level Converter - SparkFun

The module allows to exchange data between systems that use two voltage levels: 3.3 V and 5V. Allows you to connect popular communication interfaces: UART, SPI and I2C. The dimensions of the plate 13 x 15 mm.

Conclusions are fields solders for wlutowanie goldpin connectors (2.54 mm pitch). Thanks to them, it is possible to connect the system with the breakout Board or the main module (for example, STM32Discovery or Arduino) via wires.


Konwerter poziomów logicznych - SparkFunKonwerter poziomów logicznych - SparkFun


The set does not contain strap goldpin, it can be purchased separately.


Example usage

Converter is an easy to use, for correct operation is sufficient to connect the power supply of two systems that will be converted. A higher voltage (e.g. 5 V) connect to the output HV (high voltage), lower ( e.g., 3.3 V or 2.8 V), LV (low voltage). Mass connected to the terminals marked GND. Signals should logically lead to the corresponding connectors TXI , RXI - inputs and the TXO, RXO output.

Konwerter poziomów logicznych

Logical unit 5 Volts is supplied to the input of the TX-side voltage of 5 VOLTS (HV), output the value of 3.3 V output RXO-side voltage of 3.3 V (LV). The other way the system works in a similar way.



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The time of payment depends on the hours of ELIXIR session of the sender's bank and the recipient of the transfer (more information on this subject, for example on the website


The table presents available forms of delivery in Poland


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by cash


Poczta Polska

terms of service

9,90 PLN17,90 PLN1-3 days

Kurier GLS

terms of service

14,90 PLN22,90 PLN

1-2 days

Paczkomaty 24/7 

terms of service

12,90 PLN-1-3 days

If the amount to pay for products exceeds 500 PLN
Delivery is for free!


  • Free delivery of orders over 500 PLN does not apply to parcels addressed outside of Poland.
  • Free delivery does not apply when changing orders.
  • The delivery period is counted in working days from the date of dispatch of the order.