Joy-it COM-KY051VT Instructions

Voltagetranslator

COM-KY051VT

Voltagetranslator

1. GENERAL INFORMATION & SAFETY INSTRUCTIONS

Dear customer,

Thank you for choosing our product.

In the following, we will show you what to consider during commissioning

and use. If you experience any unexpected problems during use, you are

welcome to contact us.

This level shifter converts digital signals from one voltage level to another.

There are 4 available channels that, can be converted.

At present, there are many microcontroller systems operating in different

voltage ranges: e.g. the inputs and outputs of older systems such as Arduino,

based on an Atmega controller, with 5V level, the newer Raspberry Pi com-

puters based on an ARM controller, with a voltage level of 3.3V.

This can be explained by the fact that higher voltages had to be used in the

communication between microcontrollers, because the input stages have a

higher distance between the voltage level for [Digital ON] = 5V and for [Digi-

tal OFF] due to noise / interference in the cables. = 0V have needed - In the

course of the modernization input / output stages of the controllers have

become significantly better and you want to keep the voltage used as low as

possible today, so that heat generation and power consumption decrease.

So today the use of 1.8V systems is not uncommon.

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Page 1 COM-KY051VT Voltagetranslator 1. GENERAL INFORMATION & SAFETY INSTRUCTIONS Dear customer, Thank you for choosing our product. In the following, we will show you what to consider during commissioning and use. If you experience any unexpected problems during use, you are welcome to contact us.
Page 2 However, if you want to communicate between two systems with two diffe- rent voltage levels (like the lower example Arduino -> Raspberry Pi), the vol- tage level has to be „shifted“ - If this is not done, the system with the lower voltage level has to apply the excess voltage to the voltage level Input levels „consume in heat“.
Page 3 3. CONNECTION EXAMPLE Example connection assignment between Arduino | Raspberry Pi: Pin assignment Arduino: COM-KY051 Arduino VCCb Pin 5V Pin 03 Pin 04 Pin 05 Pin 06 Pin GND Pin assignment Raspberry Pi: COM-KY051 Raspberry Pi VCCa 3,3V (Pin 01) GPIO 18 (Pin 12) GPIO 03 (Pin 05) GPIO 2 (Pin 03)
Page 4 SIAMC Electronics GmbH, Pascalstr. 8, D-47506 Neukirchen-Vluyn Possibility of return in your area: We will send you a parcel stamp with which you can return the device to us free of charge. Please contact us by e-mail at Service@joy-it.net or by telephone. Information on packaging: If you do not have suitable packaging material or do not wish to use your own, please contact us and we will send you suitable packaging.