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  • Hardware

  • For this project I used a cool little 8085-based single board computer (8085 Minimax) described and graciously provided to me by Ken Yap (thanks again!). I was actually in the process of soldering together the board, and decided to use a verification...
  • UWB+GPS Converged Equipment

  • Product features: support Beidou differential positioning and UWB positioning, automatic switching between indoor and outdoor high-precision positioning, positioning accuracy up to 2 cm outdoors, up to 10 cm indoor positioning accuracy, IP67 protection...
  • Provisioning the Raspberry Pi

  • Next, you're going to get the SD card ready for booting the operating system on the Raspberry Pi. This begins with copying the official raspbian lite image to the SD card. This is a process that can be done in many ways, and it slightly differs depending...
  • Arduino Tester

  • I came up with a nice (from my own standpoint) circuit arrange that tester each and every pin of my Arduino-compatible board:- Pins 0 and 1 = Serial communication with a PC, through the "Serial.print()" command- Pins 2 and 3= an LED connected between...
  • Peak Performance

  • Below is a picture of a patch that gates the input to the ADC so that it is only looking at the value from the EC probe at the end of the square wave pulse, after the initial transient has settled out. It works really well, dutifully recording the voltage...
  • A Better Turret

  • Parts Bought the following parts: 2x NEMA 17 stepper motor - 68 oz in (400 steps/rev)1x Pololu universal aluminum mounting hub for 5mm shaft M3 holes (2 Pack)2x NEMA 17 stepper motor mounting bracket1x Nano 3.0 CNC board (uses A4988 stepper motor drivers)1x...
  • Quick Update 22/09/22

  • The new tower and the pcb are being tested for 2 weeks now. Everything is working great. On the picture you can see a 3 weeks old basil plant, with 2 weeks in the tower. You can also see the fog coming out of the tower. The roots are growing and are...
  • Quick Update 22/09/22

  • The new tower and the pcb are being tested for 2 weeks now. Everything is working great. On the picture you can see a 3 weeks old basil plant, with 2 weeks in the tower. You can also see the fog coming out of the tower. The roots are growing and are...
  • I/O mapping

  • D3, D4, D5, D13 are used by the LCD.D6..D9 are keyboard rows.A0..A3 are keyboard columns. I intentionally map these backward so the physical wiring would be pretty. :-)WARNING: Note that the LCD is 3.3V!!!
  • Analog parts

  • I've added the possibility to analyze and view A0 and A1 trinket pins on the screen.A0 & A1 can be used as inputs, inputs pullups and/or outputs.IN: input / OU: output / UN: unused3 modes (A0==UN && A1==UN not a possible case):Input mode : (A0 == IN...
  • YGREC8

  • After the explorations with #YGREC-РЭС15-bis, I reached several limits and I decided to scale it down as much as possible. And this one will be implemented both with relays and VHDL, since the YGREC8 is a great replacement for Microchip's PICs....