The classic arpschuino.

  • USB>serial sur arpschuino

The arpschuino is based on the same micro-controller that the Arduino boards, the ATmega 328. It provide DMX connexion, transmission or reception. To be used on show or other difficult conditions, regulation was particularly neat.

They have multiples applications : dimming led, low voltage lamps, motors. Driving led pixel, electromagnets or relay. Receive data from various sensors. Sending DMX standalone...

Thanks to the arpRF , the arpschuino² can now communicate by radio link with another arpschuino², arpsensorsRF or wilulu .

See differents examples.

You can give an address to arpschuino with the arpdress board and program it with the USB>serial or an other USB>TTL adaptator.

Specifications :

  • 16 IO
  • 6 PWM outputs
  • 6 analog inputs
  • DMX in/out
  • 1 serial port
  • 1 I2C port
  • 1 power led and 1 signal led
  • Power supply: 7 to 13V (12 to 24v optionaly)
  • Operating voltage selectable via a jumper: 3.3 or 5V
  • Dimensions : 87 mm / 67 mm

Price :

  • classic version : 39 €
  • XLR 3 version : 39€
  • XLR 5 version : 43€

Options :

  • multi-turn potentiometer (to set the analog reference) : 2 €
  • 10V pre-regulator (to supplying the arpschuino² with a voltage between 12 and 24V) : 2 €
  • mini heat sink for regulator : 1 €
  • assembly service : 11€

The arpschuino² is supplied in kit to assemble yourself. We can do the job for you on request.

 resources :

Assembling an arpschuino² R6.4(fr+en) : PDF

arpschuino² user guide : PDF

arpschuino XLR template : PDF     DWG

This website is not an online store. If you are interested in our boards, please contact us at

 versions :

R6 news:

Possibility to add an optional pre-regulator to supply the arpschuino² in 24V.

R5 news:

No more zener diode.

New I / O marking compatible with the arpschuino core.

Addition of a capacitor on the reset line of the serial port : No more need for an adapter with the USB>serial .

R4 news:

Reset on the I²C port, allows a remote reset with the arpdress board.

R3 news:

New 1W resistor for regulation.

Marking gnd in white.

R2 news:

The arpschuino² R2 can be equipped with either XLR 3 or 5, or classic green connectors.

Protection against reverse polarity has been improved: the first capacitor is now downstream of the protection diode.

The fixing holes have been enlarged for the use of M3 screws.

A multi-turn potentiometer can be added to precisely set the analog reference.

arpschuino² news:

Arpschuino² can work in 5V or 3.3v, making it compatible with most current devices.

The HE10 ports can now provide power supply to devices.

The DMX out is working without jumper, so he was deleted.

DMX and power connectors are now flats and the LEDs have been displaced to facilitate an enclosure development.

A slot for 2 resistors allows to change the analog reference, using a voltage divider bridge.

The devices and source codes used with the arpschuino V1 remains compatible, without any modification.

The default code does not change.