OLED屏是一种常见的显示屏，下面以0.96寸OLED模块为例，用IIC的DMA来实现OLED屏幕的刷新。 采用DMA方式不需要程序一个个字节发送，通过启动DMA自动完成整个屏幕的刷新，可以节约大量的CPU时间。 该屏幕分辨率为128x64，每个点占用1bit，于是整个显存占用128x64/8 ...

OLED是非常常用的显示设备，可以由4线、3线的spi驱动，也可以使用2线的IIC来驱动。百问网提供了spi_OLED的驱动例程，这次使用IIC来驱动，并且使用基于面向对象的编程来实现。 1.配置IIC，打开RASC后，在栈中增加rau_master_I2C，并设置channel为0b20即通道2，选择SCL为P112 ...

一、主要功能：利用oled来显示DHT11检测出来的温湿度 #define word1H 16 //定义第一个汉字的高度 #define word2W 16 //定义第二个汉字的宽度 #define word2H 16 //定义第二个汉字的高度 #define word3W 16 //定义第三个汉字的宽度 #define word3H 16 //定义第三个汉字的高度 #define word4W ...

[Johngineer] found himself in need of an I2C sniffer, but didn’t have one available. Necessity is the mother of invention, so he put together this I2C sniffer sketch for Arduino. The arduino will ...

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very helpful when you want to measure the outside, ...

Serial Kickstarter campaign creators SwitchDoc Labs have now launched their fourth campaign via the crowdfunding website to raise the required funds they need to take ...