Wiznet makers

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.

MicroPython task scheduler built upon software‑timer, featuring Task/Scheduler classes with task add/delete/pause/resume, idle‑time GC and exception handling.

Timer‑driven button‑detection FSM in MicroPython for single‑click, double‑click and long‑press.

RP2040 clock system, general‑purpose timer, PWM timer dual‑register mechanism and SysTick details.

MCU timer basics: types, internal composition, timing/counting/PWM modes and PWM‑related parameters.

RP2040 timing units overview & MicroPython Timer / PWM class APIs.

I2C bus basics: 2‑wire SDA/SCL, address‑based multi‑device connection, version evolution from Philips to NXP

Brief intro to computer BUS: origin from ENIAC, modern bus definition, data‑address‑control buses and master‑slave roles.

RP2040 MicroPython demos for UART RXIDLE and TXIDLE interrupts.

Compares MicroPython v1.23.0 and v1.26.0 on RP2040, covering newly supported UART interrupts and trigger events to replace polling.

a Geiger Counter data logging system with Ethernet connectivity, SD card support, and a web-based monitoring interface.

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