Handy CP2102 breakout board with all pins out and adjustable output voltage.
Cadsoft Eagle .brd & .sch for Croduino Basic(Arduino compatible) board.
PCB for LM393 voltage comparator which can host different sensors
LED dice is learn-to-solder kit in which you create your own cool gadget.
Eagle files for Croduino NOVA - ESP8266 board with CP2102 and programmable from Arduino
Bunch of common use sensors/modules for makers as well as e-radionica.com products prepared for Fritzing
Cadsoft Eagle files for Croduino Basic2 - Arduino compatible board
Cadsoft Eagle files for Croduino to Arduino adapter which enables use of Arduino shields with Croduino
Cadsoft Eagle files for Croduino Damba - Arduino wearable compatible board with Attiny85
Cadsoft Eagle files for Croduino Pico - Arduino compatible board