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

Enter contest with your FPGA based POV

Pyroelectro announced that they started contest on building FPGA or CPLD based POV (Persistence Of Vision). There are plenty of microcontroller driven POV displays, clocks and 3D sculptures. FPGA’s can also be successfully used to build various types of POV’s. Give a try and win prize (Basys2 Spartan-3E FPGA board). Submit your entry to contests@pyroelectro.com with the subject line “PyroElectro POV Contest.” Your entry must contain two photos of the device – one of its components in a well-lit environment and one of it in action in a darkened environment – as well as a circuit diagram and the VHDL code to run the device. Continue reading

Display made of seven segment LED indicators

We are used to see displays made of dot pixels. But this one is a bit different – it’s made of seven segment displays. When you take a large number of these and treat individual LED in indicator like “pixel” you get interesting results. Skot has started this project called DigitGrid to show that indicators can display more than numbers and letters. He used 512 7-segment digits to form an array. Digits are grouped in to modules that are controlled by TLC5920 Driver. All these modules are connected to Spartan 3E FPGA which receives frames over serial interface. Animations are created using Processing and then passed to DigitGrid. Project is pretty ambitious as it requires lots work to assemble in to one working piece. But results look astonishing. Continue reading