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One of the main problems encountered when using micro:bit is "How do I get my program to do more". For example, a program may want to display a certain amount of time on the screen but also respond to button presses during that time. Or, perhaps it needs to remember to do something at some point in the future, but continue to do its main function until then.

You can finish programming whenever and wherever without a computer, only with micro:bit V2, retro arcade, and MicroCode. Why don't you try it soon?

Wukong2040 expansion board is a new product developed by ELECFREAKS. Are you very interested in how to use it? The following is one of the cases of Wukong2040 expansion board: How to use Wukong2040 to drive OLED screen.

Install thonny editor to use wukong 2040 extension to create an API. You can download the code related to Raspberry Pi pico on the website of citcuitpython for operation.

The I2C integrated circuit bus, a serial communication bus using a multi-master-slave architecture, was developed by Philips in the 1980s to allow motherboards and embedded systems to connect low-speed peripherals.

The correct pronunciation is "I square C" or "I square C", while "I two C" is the wrong pronunciation.

PIO is a special peripheral of RP2040, let's learn more about it today because there are more contents of PIO, so this issue has more contents.

Today we introduce the last of the three brothers of communication, SPI.

In the last -term we have used ADCs and internal temperature sensors to read pin voltages and on-chip temperatures to implement the process of converting analog signals into digital signals. By now, having learned to use PWM and ADC, these set the stage for our Pico:ed to work in different situations.

Pulse-Width Modulation, or PWM for short, is a scheme that uses digital signals to simulate changes in analog signals, as most of the signals in our natural life are analog, such as brightness, speed, volume, etc.

Based on the hardware in the previous section, some of you will ask exactly how the LED lighting is achieved.

The answer is to use a GPIO peripheral.

Here you need to understand a concept, the full name of peripherals is external devices.

In the early days, UART, LCD controller, and so on, and the CPU is not on a chip, so that is called external devices.