Kit I2C-RS232 coupler
Kit I2C-RS232 coupler
Kit I2C-RS232 coupler
Kit I2C-RS232 coupler
Kit I2C-RS232 coupler

Kit I2C-RS232 coupler

Tax included Shipping excluded
Delivery Time: Delivery time 3-5 working days germany / about 10 days Europe

The I2C-coupler converts the V24 signals of the serial interface (RS232) in 5V signals for the I2C hardware.

The kit includes all required components and the circuit board.

Volume discounts

Quantity Unit discount You Save
5 €1.00 Up to €5.00
10 €2.00 Up to €20.00


In order to address the I2C hardware to the PC, we have developed a simple coupler for the Serial port (COM port) of the PC.
The signals SCL and SDA as well as the INT signal to the input modules are on the V24 level of the RS232 - interface implemented.

Dimensions of the circuit board 45 x 55 mm.


More information and program examples here: I2C-RS232-Koppler


Data Sheet Schematic Diagram


1   I2PM-LP circuit board for I2C-coupler
3 Resistor 270 Ohm
6 Resistor 4,7 kOhm
1 LED 3mm red
1 LED 3mm yellow
1 LED 3mm green
4 Elko 10yF
1 Ceramic Capacitor 100 nF
1 Transistor BC546
1 MAX 232
1 IC socket 16 pin
1 74LS05
1 IC socket 14 pin
3 pin connectors 3 pol and Jumper
2 terminal 5pol.
1 SUB-D cable 9pin fermale

Specific References


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Kit I2C-RS232 coupler