Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

ARM Cortex-M0 based 4 channel MIDI synthesizer

There are many MIDI synthesizers out there. And each of them produces different sounds and gives different control capabilities. 74Hc595 have published pretty interesting MIDI device on GitHub. It is based on NXP LPC1114FN24 DIP-28 ARM Cortex-M0 microcontroller. It features four adjustable oscillators. Options include 2-pole low pass, high pass and bandpass filters, attack-release envelopes for modulation and other signal modulation capabilities. DAC output can reach 250kHz with 12-resolution. Device has a MIDI input so it can accept commands from other devices like PC or keyboard. Continue reading

Amazing 16 track live MIDI box sequencer

If want some serious fun with MIDI music, take a look at this serious looking midi sequencer built under STM32 processor with 512k Flash memory. This is a MIDIbox v4 – that means that it is an evolutionary product with more improvements and more power. < p style=”text-align: center;”> MIDIbox SEQ V4 Teaser #2 from Thorsten Klose on Vimeo. MIDI box has a long list of features that should satisfy any of you if you decide to get hands on it. It has USB connection that gives an alternative to traditional MIDI interface and seems that Ethernet is also coming. It is quite complex project so be sure to check documentation carefully before decision to start. Listen to teaser sounds in video – sounds sweat. Continue reading

BeatSneaks – The Coolest and Stylish MIDI Drum Shoes!

Are you one of them who always found yourself tapping your feet unconsciously? If you did, then it might be caused by some nervous habit. However, if you enjoys with this movement, then just screwed up the bad habit’s theory and starts DIY a cool BeatSneaks for yourself! Ok, what’s so amazing about the BeatSneaks is it’s a MIDI Drum Shoes, which is allowing you to hit or beat your feet according to the MIDI signals. Inside the BeatSneaks, there are FSRs (Force Sensitive Resistors) in the heels and toes of the shoes. These little FSRs act as the tap sensors. BeatSneaks – Musical Shoes from Tom Hobson on Vimeo. FSR is like a break in a circuit, which is having infinite resistance. When you’re applying more force on FSR, it becomes less and less resistive. In this case, if we’re hooking up one end of an FSR to a voltage source and the other to the Arduino’s analog input, we might be able to send a signal to the Arduino every time we apply pressure to the FSR! Then,… Continue reading