Wiznet makers

This tweet explains RP2040 interrupt architecture, IRQ allocation, NMI mechanism and NVIC priority rules.

This tweet introduces MCU interrupt concepts, polling contrast, interrupt types and NVIC fundamentals.

This tweet introduces the basic characteristics and working principle of stepper motors.

This tutorial covers RS485 fundamentals, MAX13487 chip, and a MicroPython RS485 implementation on Raspberry Pi Pico.

This tutorial introduces RS232 standards, MAX3232 level conversion, and implements an RS232 communication class with XON/XOFF software flow control on Raspberry

This tutorial explains MicroPython select poll() I/O multiplexing and demonstrates serial port event monitoring, data reading and exception handling.

This content covers serial bus servo basics, LX-1501 protocol and a MicroPython SerialServo driver for servo control and data reading.

This article introduces the JY61 six-axis gyroscope, covering its UART data frame protocol, checksum calculation, data conversion and available control commands

This experiment realizes UART send & receive on Fengya No.1 board, with bytes decoding, LED prompt and verification using XCOM.

This tutorial covers RP2040 UART hardware overview, MicroPython machine.UART APIs, IO multiplexing with select module, and serial debugging tools including CH34

Room Environment Monitoring

VFD Clock with SNMP and NTP

This article details Raspberry Pi Pico UART hardware architecture, covering FIFO buffer, DMA, interrupts, baud rate calculation and hardware flow control.

This tutorial covers UART flow control, common data verification algorithms and pipeline optimization to boost serial communication throughput.

This tutorial explains UART asynchronous serial communication, frame structure, parity check, baud rate concepts and data transmission workflow.

This tutorial explains UART asynchronous serial communication, frame structure, parity check, baud rate concepts and data transmission workflow.

This tutorial explains embedded communication basics including transmission modes, duplex types, rate concepts, interfaces, buses and protocols.

This article introduces communication fundamentals and classifies mainstream wired and wireless communication protocols used in embedded systems.

This tutorial introduces 5-way joystick and implements multi-direction key detection with MicroPython GPIO interrupts.

This tutorial covers EC11 rotary encoder and its MicroPython interrupt experiment with a terminal progress bar.

It introduces 28BYJ-48 stepper motor and ULN2003 driver, and demonstrates single-phase driving experiment on Fengya No.1 board via MicroPython GPIO control.

A PV-system bridge with an ESP32-C6 as its "brain": W5500 wired Ethernet talks MQTT to Victron, while Zigbee exposes battery values to Home Assistant.

HaphazardBridge uses ESP32-S3 and W5500 to link Ethernet-only SDRs to ATAK over Wi-Fi, adding NAT, gRPC, CoT relays, and two field modes.

lamePod combines ESP32-S3, W5500 Ethernet, TAS5805M audio, and an XVF3800 mic array in an early, privacy-focused DIY smart-speaker design.