There are a lot of fields in which I focus my attention through the latest years, some of the better documented than others. My intention is to publish here all that I can.
SPI 12 BIT DAC INTERFACING
MAX525 Quad 12-bit DAC with Arduino Nano
MIDI TESLA COIL CONTROLLER-INTERRUPTER
Several 328p in cascade connection using timers and interrupts generating on-off control signal to drive two tesla coils from MIDI input signal
SD CARD READ/WRITE WITH ARDUINO NANO
An introdution of file accessing using a SD Card module via SPI.
INTEGRATED PCB MICRO-QUADCOPTER
My first drone with multiwii firmware on a 328p flight controller.
MY FIRST FPV QUADCOPTER
A 550 class fpv drone with 2560 multiwii board running APM.
DIY FPV RACING DRONE
3D Printed frame based on CC3D. Openpilot and Cleanflight firmware tested.
QAV-250 RACING DRONE
Carbon fiber frame, STM32 F4 flight controller running Betaflight.
SK-550 / DEADCAT FPV QUADCOPTER
550 class frame, APM 2.8 flight controller running Arducopter
FIRST CONTACT - PRUSA i3
Understanding 3D printing technologies.
3D PRINTER UPGRADES
Mk8 direct drive extruder and automatic bed leveling using proximity sensor.
Inexpensive DIY version of Phantom X hexapod robot.
BEAGLEBONE BLACK - COMPUTER VISION APROACHING
Knowing Beaglebone ARM Architecture Development boards and openCV libraries..
CLASIC TESLA COIL
Original Tesla's design. No electronics involved.
SOLID STATE TESLA COIL
IGBT driven modern design. MCU controlled.
70 kV DC POWER SUPPLY
Battery operated HV supply for X ray generation.
Capacitor based single pulse - high current HV generator.
POCKET LASER ENGRAVER
Salvage parts from old cd-rom / DVD converted into a desktop mini engraver.
Nd-YAG SOLID STATE LASER
Clasic model of crystal based pulsed laser.
RGB LASER DIODE MODULE
One laser diode of each colour combined into a single beam covers full colour spectrum.
GALVO SCANNER LASER PROJECTOR
Using comercial galvos and arduino to make spectacular laser shows.