I am Bobricius - The Creator
PeMi Technology - 
Factory For Materializing Dreams

My ministore by Paypal.

You can buy directly from me, you don't have to worry about your money, it is fully protected by paypal,

I have 10 years of experience in selling to the whole world.

But if you still have doubts, you can use the Tindie or eBay platform to purchase, the links can be found at the end of the page.
The following products are exclusively prepared for this e-shop.


  • Your payment is protected by PAYPAL

  • Worldwide International shipping 20€ with tracking

  • There is no automatic order confirmation
    (I write you personal email with tracking number)

Carefully read please !

  • All products are in intensive development
  • I can update description soonner than product photo, read please before order what is included.


PICOmputer 28 - BARE PCB

Set of Bare PCB'S without components = 7 parts

  • 1x Top panel board ENIG GOLD finish, black
  • 1x Motherboard, mainboard black
  • 1x Left side board
  • 1x Right side board
  • 1x Down side board
  • 1x Up side board
  • 1x Bottom cover board, black


Picture is not actual, but board are for P28

Required components - not included

Component Pcs  Description Note

Raspberry PICO

or ESP32S3 for Meshtastic

1 main green board -
DTS63K Diptronic or EVQPAC07K Panasonic 37 tactile switch 7mm height, 1N Or another 1N force is very comfortable to press
RFM95W 1 radio module For Armachat
SD card reader 1 generic  part Retro computer emulator
2.8" IPS screen 1 320x240 ST7789V IPS HC28010-D
BSS123 1 Transistor display backlight
10R 0603 1 Resistor display backlight
4k7 1 Resistor display backlight
LPT1109DS 1 PIEZO PIEZO sound beeper
JS202011CQN C&K or MSS-2235 NINIGI 1 Side Switch For power off
(work without)


  • stock 0sets (30€/set 7pcs)

PICOmputer 28 - ASSEMBED

Basic simple Retro computer emulation (ZX Spectrum, Atari 800, C64)

  • Raspberry Pi PICO
  • SD card reader
  • 18650 battery holder (optional)
  • Integrated Lion battery cca 800mAh


Preloaded firmware - ZX Spectrum 128

  • stock 0pcs (120€/pcs)

PICOmputer 28 - ASSEMBED

  • ESP32S3
  • RFM95 LoRa radio communication module
  • Small basic antenna (according to the local distributor's current stock)


Preloaded firmware by your choice

  • Meshtastic - default
    Very basic, send/receive message, Bluetooth&app is required for configuration
  •  CircuitPython + Armachat messenger - optional


stock 0pcs (150€/pcs)

  • 915Mhz for USA

stock 0pcs (150€/pcs)

  • 868Mhz for Europe

PicoZX- Handheld retrocomputer

  • Full ZX keyboard + some extra
  • 2.8" IPS display (optional)
  • VGA output (optional)
  • USB OTG (optional)
  • 9pin Atari joystick (optional)
  • Battery Charging
  • Circuitpython compatible (with LCD only)
  • Armachat LoRa communication
  • uSD for game storage


Coming soon



Simplified touch computer


Coming soon

STORE: Bobricius

I sell on Tindie


PCB integration

The age of the rectangular PCBs is already far away,

now PCB is not just be a carrier, it is device, enclosure or sensor

Factory for Materializing dreams

One day is it dream, but it's not just a dream, it's just a vision of the near future ...

Finding new solutions

Make simple and reliable circuit

Continuous improvement

Firmware updates

Advanced procedures

SMT assembly

Rapid prototyping