The UPDuino v3.1 is a small, low cost FPGA board. The board features an on-board FPGA programmer, flash and LED with all FPGA pins brought out to easy to use 0.1" header pins for fast prototyping.

The tinyVision.ai UPduino v3.x Board Features:

Lattice UltraPlus ICE40UP5K FPGA with 5.3K LUTs, 1Mb SPRAM, 120Kb DPRAM, 8 Multipliers
FTDI FT232H USB to SPI Device
ALL 32 FPGA GPIO on 0.1” headers
4MB SPI Flash
RGB LED
On board 3.3V and 1.2V Regulators, can supply 3.3V to your project
Open source schematic and layout using KiCAD design tools
Integrated into the open source APIO toolchain
Works with IceStudio^{nightly/dev branch only at the moment}

Please see the wiki page for the changes that were implemented from v2.1. Some salient features are:

4 layer board with a solid ground plane, proper layout/decoupling for good signal integrity and FPGA operation
Access to on-board 12MHz oscillator using a jumper
All FPGA pins including LED driver pins are brought to 0.1" headers
qSPI Flash capable
tinyFPGA bootloader compatible

Here are some resources for you:

Documentation (beyond what's on this GitHub)
Discord channel
Schematic
AssemblyDrawing
Blinking LED

TinyVision.ai blog posts:

You can buy this board here: US and non-EU orders: .

EU Orders with VAT paid:

For expedited shipping options, please visit the storefront at www.tinyvision.ai or email us directly at: sales at tinyvision dot ai.

Useful links

Digi-Key Intro to FPGA Video series
osresearch: large collection of very useful code and a good overview.
UPduino FPGA tutorial using APIO
A very detailed blog on implementing a RISCV in the FPGA
Lattice iCECube2 tutorial
Open FPGA verilog Tutorial

The next generation of Upduino (coming soon)

pico-ice