Joy-it COM-KY051VT Manual de usuario
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 shier 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 dierent
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 signicantly 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.
However, if you want to communicate between two systems with two die-
rent voltage levels (like the lower example Arduino -> Raspberry Pi), the vol-
tage level has to be „shied“ - 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“. Depending on the system, this can lead to permanent
damage to the system.
2. PINOUT
The pin assignment is printed on the module board.
The signals at the inputs/outputs A1-A4 are shied to the respective
voltage level (VCCa → A1-A4 | VCCb → B1-B4)
Example :
Arduino output → Digital [ON] = 5V @ B1 >>> 3,3V @ A1 → Raspberry input
Additional soware or code is not required for operation; the module
works autonomously.
Please note that VCCb must be greater than / equal to VCCa
(example VCCb = 5V - VCCa = 3,3V)
3. CONNECTION EXAMPLE
Example connection assignment between Arduino | Raspberry Pi:
Pin assignment Arduino:
COM-KY051 Arduino
VCCb
B1
B2
B3
B4
GND
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)
A1
A2
A3
A4
GND
GPIO 18 (Pin 12)
GPIO 03 (Pin 05)
GPIO 2 (Pin 03)
GPIO 14 (Pin 08)
GND (Pin 06)
Please note that VCCb must be greater than / equal to VCCa
(example VCCb = 5V - VCCa = 3,3V)
Please ensure that both systems are connected to the same GND (ground) -
OE does not need to be connected to this module.
4. FURTHER INFORMATION
Our information and take-back obligations according to the
ElektroG
Symbol on electrical and electronic equipment:
This crossed-out dustbin means that electrical and electronic equipment
does not belong in the household waste. You must return the old
appliances to a collection point. Before handing over waste batteries and
accumulators that are not enclosed by waste equipment must be
separated from it.
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6. SUPPORT
We are also there for you aer your purchase. If any questions remain open
or problems arise, we are also available by e-mail, telephone and ticket sup-
port system.
E-Mail: service@joy-it.net
Ticket-System: http://support.joy-it.net
Phone: +49 (0)2845 98469 – 66 (10 - 17 clock)
For more information visit our website:
www.joy-it.net
www.joy-it.net
SIMAC Electronics GmbH
Pascalstr. 8, 47506 Neukirchen-Vluyn
published: 31.05.2019
Return options:
As an end user, you can return your old appliance (which essentially fulls
the same function as the new appliance purchased from us) free of charge
for disposal when you purchase a new appliance. Small appliances with no
external dimensions greater than 25 cm can be disposed of in normal
household quantities independently of the purchase of a new appliance.
Possibility of return at our company location during opening hours:
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
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.
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