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Variants - read carefully

  • FULL : with PNP transistor and diode for small inductive load + power led, with male 2x5 pin header
  • LIGHT : no PNP transistor, no diode, no power led, without male 2x5 pin header


Bootloader - Micronucleus t85 variants -write personall message if you want another bootloader, default I seel with 
Micronucleus classic (Digispark)

  • Micronucleus classic (Digispark) : bootloader is activated every plug in to USB for few seconds, anytime you apply power is activated bootloader then user program, you need wait delay when bootloader ends

  • Activated with RESET : bootloader is activated when you press button (button is connected with solder jumper to Reset signal), anytime you apply power is started user program, no delay. If you want upload new sketch just press button, unplug from usb is not required.

  • Activated with Button HOLD : bootloader is activated when you hold button then insert to usb (button is connected with solder jumper to PB0 Digital0), anytime you apply power is started user program, no delay. If you want upload new sketch hold button, unplug from usb and insert again. Advantage: you can read button state in sketch, this option is good for etc one key keyboard

NOTE: You can have problem with driver or connection on windows 7 64bit or USB 3 ports!

also Os-x and windows 10 need some expert settings.

Technically it is Digispark clone :),  AtTiny85 MCU based board. 
Digispark is sold in more than 40 000 pcs that mean very large community.

Hardware compatible with adafruit Trinket /Gemma, you can use gemmaboot without changes.
It is unnecessary, again and again listing their parameters, focus on the main differences ;)

This board is well supported with Digispark official IDE, just select In IDE : Tools->Board->Digispark Tools->Programmer->Digispark

Really no shieds? 

YES, check in gallery

on board is all for you need for start, RGB LED, motor driver, IIC pull-up

Pinout is smart selected to direct plug servo, wss2812 strip , IIC lcd or RTC module,


Main differences:

  • On-board RGB led - no shield required !!!
  • Led flashing GREEN during bootloader activity (only on Micronucleus classic (Digispark) bootloader)
  • reset is enabled you can program this board with USBASP or Arduino via ISP you can easy replace/repair/remove bootloader
  • slim design 12x27 mm 
  • smart pinout ... direct connect I2C/TWI boards, RTC, EEPROM, Led strips, I2C LCD - no shield required !!!
  • partially breadboard compatible, you can insert 1 row
    -Top row contain all important signals also connected to RGB Led
     [GND][5V][SDA][SCL][PB1]
    -Botton row with signal affected with programming
     [GND][OUT][RES][PB3][PB4]
  • board can be covered by transparent or white heat shrink tube
  • 2 types of USB connector PCB, USB-A (sold without)
  • Power LED (optional)
  • Button can be routed to PB0 or Reset with solder jumper
  • easy upload sketch, just press reset button after power on (optional)
  • user program run without wait (optional)
  • Transistor with diode for driving small motor (hardware PWM can easy regulate motor speed!) or relay on PB1 max 100mA -  no shield required !!! (optional)
  • Easy use as standard HID keyboard, send your keystrokes to any PC or ANDROID device. Transfer you text, business card, address or large secret script :) to computer with disabled USB mass storage !
  • Use internal temperature sensor with RGB led to create funny coarse thermometer 

For example Digispark libraries:
TinyWireM, Usb, Tiny RTC lib, TinyPinChange, SoftSerial SoftPuseOut, SoftPulseIn, SimpleServo, RGB, RCseq, Mouse LPD8806, LCD, Keyboard, Joystick, Nunchuk, VirtualWire, OneWire, TinySoftPwm

PicoDuino is supported in Ardulink (A complete, open source, java solution for the control and coordination of Arduino boards.)
http://www.ardulink.org/picoduino-supported/


    Risks & Challenges

    I have lots of experience in production, sourcing and shipping.
    Board is produced in small batch. 
    All board assembled in Slovakia on high quality ENIG gold pcb from USA

    with components from European suppliers.

    Picoduino is compatible with over 40,000 Digispark (tiny unofficial arduino device )devices from Digistump , so you can be confident that Picoduino will be well supported in the future.


    = Usefull links=

    Little Wire firmware : http://littlewire.cc/index.html
    Wavetable Melody Generator firmware: http://elm-chan.org/works/mxb/report.html
    Bootloaders: https://github.com/micronucleus/micronucleus/tree/master/firmware/releases
    Digispark wiki: http://digistump.com/wiki/digispark

    Something about ATTINY85:

    Adafruit trinket gemma: http://learn.adafruit.com/introducing-trinket
    Trinket bootloader: https://github.com/adafruit/Adafruit-Trinket-Gemma-Bootloader



                                   
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