TinkerKit! DMX Receiver - MOS Module

The DMX-PWM converter is used for brightness control of 4 low-voltage LED, incandescent lamps and devices that use variable voltage via the DMX protocol. DMX messages are converted into PWM signals driving 4 power MOSFETs. The DMX address is set via the onboard DIP switches.

Techinal Specifications

Setting Address The DMX address is set using the first 9 switches of the DMX address switch. The address is set as a binary number (with switch 1 the LSB, Appendix A lists addresses and their corresponding switch settings). As the unit is a 4 channel receiver, it will respond to data in the set address, and the following 3 addresses in the DMX data stream. The address should not be set to over 509.

Using With DMX Input In order to use the TinkerKit DMX to PWM Converter with a DMX feed, simply set the desired address and connect the DMX feed to the DMX input. Remember to terminate the DMX feed at the end of the chain with a 120Ω resistor between the DMX + and - lines. When data is being correctly received, the yellow LED should blink fast.

Test Mode The TinkerKit DMX to PWM Converter-3 has test mode which ramps each individual output up to full brightness then back off in sequence. This test mode is entered by setting the DMX address to 0 (all switches down). While in this mode, any incoming DMX data is ignored. Once the address is changed from 0, pressing the RESET button will return the device to normal operation.

Code & Library To control DMX with Arduino you may need the DMX library. See its reference for proper examples.