electronic-clock

基于C语言的GSM模块sim808的51驱动程序(The 51 driver of the GSM module sim808)

缺水报警器 硬件 1.主控板上有2个LED灯白色插座，连接2个LED插头 2.主控板上有一个缺水报警探头插座，连接缺水测试探头 3.主控板上有一个蜂鸣器 功能 1.上电后蜂鸣器鸣叫一声，进入工作状态 2.进入工作状态后，利用探头进行自动测试，若发现没有达到一定的水量（检测端口断开），便立刻进入报警状态，红LED闪（蓝灯灭），蜂鸣器鸣叫，LED灯和蜂鸣器的鸣叫频率均为2HZ。（蜂鸣器为4khz的压电式蜂鸣器） 3.或者将探头短接，也将视为有水，则蓝灯长亮（红灯灭，蜂鸣器不叫）。 (Water alarm hardware 1 master board has two LED lights white socket, connect two LED plug 2. The main control board has a water alarm probe socket, connect the test probe is water 3 main control panel a buzzer function 1 after power buzzer sound, into the working condition (2) to enter the work state, the use of automatic test probe, if it did not reach a certain amount of water (test port off), they immediately go into alarm state, the red LED flashes (blue light), buzzer, LED lights and buzzer frequency chirping are 2HZ. (Buzzer piezoelectric buzzer for the 4khz) 3, or short the probe will also be seen as water, the long bright blue light (red light off, the buzzer is not called).)

STM32F103 MDK 工程，可以使用。。。。。。。。(STM32F103 MDK PROJECT)

Source code demo rs232

说明：  多路温度测试模拟,使用VB写的，只是模拟(Many way template test source)

接入周立功公司CAN分析仪通用上位机例子(Access ZLG universal PC CAN analyzer examples)

主控为51单片机，采用DS18B20测量温度，LCD1602实时显示温度，并通过NRF24L01无线传输模块将测得的温度传输到接收端，

附件为小日本的50KW逆变器的方案，太阳能控制架构图，希望对大家有用。附件为小日本的50KW逆变器的方案，太阳能控制架构图，希望对大家有用。(Attached is a small Japanese 50KW inverter solutions, solar control chart, we want to be useful. Attached is a small Japanese 50KW inverter solutions, solar control chart, we want to be useful.)

基于stm32的 hal库的 mpu6050六轴驱动程序。可读取角速度 加速度(Based stm32 of hal library mpu6050 six-axis driver. Read angular velocity acceleration)

pic modified sine wave inverter circiut