Wiznet makers

ESP32 dual-W5500 transparent Ethernet bridge

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NOBD keeps your inputs honest and your intent intact. Execution is back. No more fighting a broken pipeline between your hands and the game.

Code Modern. Code Legacy. Code Firmware. - open-source AI-native IDE with agentic coding, Power Mode, legacy modernization, and firmware development

This guide shows how to build and test a light-controlled LED system using Blockless and the W5100S-EVB-Pico.

A small companion service for connecting retro machines (real DOS PCs, Windows 9x) to networks and the internet over a plain serial cable. It is a single self-c

Open-Source Pixel Artnet Node now supports WLED!

Signal Elektronik’s Geiger-Müller counter and datalogger uses the WIZnet W55RP20-EVB-PICO as the processing and wired-networking platform for a radiation-monito

Huawei EMMA dials out over TLS as the TCP client, so a normal Modbus server cannot answer it. A W5500 gives that reverse link its own isolated LAN.

Two approaches to drive WS2812 on Pico: built‑in NeoPixel library and hardware‑timing PIO implementation for GRB‑encoded color‑chasing light effects.

This demo applies `StateMachine.exec()` to run single‑shot PIO instructions to toggle LED without modifying stored PIO program.

This demo uses PIO `irq()` instruction to trigger interrupts and print IRQ flags on RP2040 with MicroPython.

This example uses RP2040‑PIO in MicroPython to blink Pico’s onboard LED via state‑machine without CPU‑loop blocking.

MicroPython uses rp2 module to configure and run RP2040 PIO state‑machines.

Key RP2040 PIO registers cover control, FIFO status, EXECCTRL, SHIFTCTRL and PINCTRL for state‑machine configuration.

RP2040 PIO includes side‑set, wrap, FIFO join, auto‑push/pull, fractional divider and flexible GPIO mapping.

RP2040 PIO‑instructions are 16‑bit wide, split into 3 fields: 3‑bit opcode, 5‑bit side‑set/delay, and 8‑bit parameter.

pioasm syntax covers identifiers, data types, expressions, labels, instructions with side‑set/delay, and the nop pseudo‑instruction for RP2040 PIO assembly.

RP2040 PIO state‑machines use pioasm instructions, shift registers and side‑set, with GPIO mapping and IRQ flags for multi‑state‑machine synchronization.

RP2040 PIO is a programmable‑IO peripheral with two blocks and eight state‑machines, implementing diverse serial/parallel protocols with minimal CPU overhead.

MicroPython PWM‑driven passive‑buzzer class, playing "Twinkle Twinkle Little Star" via mapped note‑frequency melody data.

MicroPython PWM‑based RGB‑LED driver class, supporting RGB‑value mapping and named‑color switching for multi‑color lighting effects.

MicroPython PWM‑driven LED breathing light, with periodic timer callback and explanation of Python `global` keyword.

EC11 rotary‑encoder driver with timer‑based software debounce, plus terminal progress‑bar demo in MicroPython.