MIDIbox SEQ V4Lite

This is a sneak preview of the upcoming MIDIbox SEQ V4 Lite, a new project which I'm developing together with Christian aka. CD Picture of the prototype (built by Christian): We are planning to create a PCB for the button/LED matrix, and a Ponoko-like case! :) Feature list: minimalized user interface without LCD. Buttons and LEDs are directly connected to the MBHP_CORE_LPC17 module (no DIN/DOUT modules required) 64 LEDs and 48 buttons reduced feature set, optimize

By TK., August 28, 2011
344 replies

TK. asked me to rework the PCB, so after a bit of down time on a delayed train: It's the same basic layout as before, except that the shift registers are on board. This means only a single ribbon connector to the Core is needed = easy wiring. or could we feature-creep an LCD/OLED in? Accordingly there are some pullup/current limiting resistors added, but the 595 should be able to sink the cathode rows without transistors. 3* SOIC16 chips, 3 1206 c