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摘要: wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add - sudo apt-get install apt-transport-https echo "deb https://artifact 阅读全文
posted @ 2020-12-18 07:45 meetrice 阅读(399) 评论(0) 推荐(0) 编辑
摘要: sudo apt-get update sudo apt-get install mysql-server #服务启动后端口查询 sudo netstat -anp | grep mysql #服务管理 #启动 sudo service mysql start #停止 sudo service my 阅读全文
posted @ 2020-12-18 00:32 meetrice 阅读(121) 评论(0) 推荐(0) 编辑
摘要: 官网下载:https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html sudo tar -xvzf jdk-8u271-linux-x64.tar.gz sudo mkdir /opt/jvm && sudo 阅读全文
posted @ 2020-12-17 23:51 meetrice 阅读(151) 评论(0) 推荐(0) 编辑
摘要: HC-SR501有一个3针连接器,可与外界连接。连接如下 阅读全文
posted @ 2020-12-13 00:14 meetrice 阅读(1419) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/6ZSQimwEiC6-spdt-relay-photoresistor bool isLight = 0; void setup() { Serial.begin(9600); pinMode(4, OUTPUT); pi 阅读全文
posted @ 2020-12-09 09:59 meetrice 阅读(764) 评论(0) 推荐(0) 编辑
摘要: 作者:Pat Sagsveen 开关是电子设备不可或缺的一部分。几乎每个电子设备中都有一个开关,有时甚至有好几个。这是因为设备在使用时往往存在多种工作模式。最明显的模式普是接通或断开,但往往有一些设置可以调整。汽车车窗由可以升降车窗的瞬动开关控制。游戏机使用开关来控制游戏。在电子行业,开关的应用数不 阅读全文
posted @ 2020-12-09 09:46 meetrice 阅读(665) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/jFMVSYzlPx9-servo-motor-and-rgb-led-controlled-by-ultrasonic-sensor /* Homework 14-2a: Servo Motor and RGB LED C 阅读全文
posted @ 2020-12-08 09:32 meetrice 阅读(1295) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/9Yv09OZnrXy-temperature-sensor-with-display //CREATED BY GIOVANNI, LUCAS B, LUCAS F & THIAGO. //WHEN THE TEMPERA 阅读全文
posted @ 2020-12-08 00:49 meetrice 阅读(1666) 评论(0) 推荐(0) 编辑
摘要: 通用技术指标 使用环境条件:IEC/EN 61010-1 600V CAT III,污染等级 2 , 海拔高度 < 2000 m 工作环境温湿度:0~40℃(<80% RH,<10℃时不考虑) 储存环境温湿度:-10~60℃(<70% RH, 取掉电池) 温度系数:0.1´准确度/℃ ˙测量端和地之 阅读全文
posted @ 2020-12-07 13:25 meetrice 阅读(992) 评论(0) 推荐(0) 编辑
摘要: Locking On/Off SwitchLED Power IndicatorInput voltage: 6.5-12v (DC) via 5.5mm x 2.1mm plugOutput voltage: 3.3V/5vMaximum output current: 700 mAIndepen 阅读全文
posted @ 2020-12-07 12:59 meetrice 阅读(1673) 评论(0) 推荐(0) 编辑
摘要: 文档地址:https://randomnerdtutorials.com/esp32-cam-ai-thinker-pinout/ 阅读全文
posted @ 2020-12-06 22:58 meetrice 阅读(5724) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/j0k4YgzXoDF-ultrasonic-distance-sensor-led-bar-graph-blocks int distanceThreshold = 0; int cm = 0; int inches = 阅读全文
posted @ 2020-12-03 21:25 meetrice 阅读(1510) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/1maNW6J7e7k-elevator-simulation #include <LiquidCrystal.h> #define pwm1 9 #define pwm2 10 //#define tmpPin A0 // 阅读全文
posted @ 2020-12-03 21:10 meetrice 阅读(658) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/k6Edm8cpqNv-arduino-baisc-calculator #include <LiquidCrystal.h> #include <Keypad.h> LiquidCrystal lcd(13, 12, 11 阅读全文
posted @ 2020-12-03 20:59 meetrice 阅读(653) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/0k0l2s7QP3l-arduino-voltmeter-ammeter #include <LiquidCrystal.h> LiquidCrystal lcd(12, 11, 4, 5, 6, 7); float vo 阅读全文
posted @ 2020-12-03 19:15 meetrice 阅读(450) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/eGecJVrjnyy-l293d-1-motor-5v // connect motor controller pins to Arduino digital pins // motor one int enA = 9; 阅读全文
posted @ 2020-12-03 19:03 meetrice 阅读(1534) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/lIdIxJPUHfg-7-segments-74hc595 int dataPin = 2; int latchPin = 3; int clockPin = 4; int seq[] = {63,6,91,79,102, 阅读全文
posted @ 2020-12-03 18:55 meetrice 阅读(789) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/5nsSWyQOAkI-chenillard // Arduino Pattern Creator by PhilCam // http://my.free.time.free.fr/ // Use with Uno R3 阅读全文
posted @ 2020-12-03 18:33 meetrice 阅读(1104) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/c4DoDLruMgp-lcd-remote-control // include the library code: #include <LiquidCrystal.h> #include <IRremote.h> // 阅读全文
posted @ 2020-12-03 17:58 meetrice 阅读(1366) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/cz2cdSN3EFS-pir-sensor-with-lcd-display #include <LiquidCrystal.h> LiquidCrystal lcd(12,11,7,6,5,4); void setup( 阅读全文
posted @ 2020-12-03 17:27 meetrice 阅读(983) 评论(0) 推荐(0) 编辑
摘要: 项目地址: https://www.tinkercad.com/things/dXbkCwjcshu int ledPin = 5; int inputPin = 2; int pinSpeaker = 6; int pirState = LOW; int val = 0; void setup() 阅读全文
posted @ 2020-12-03 16:54 meetrice 阅读(1556) 评论(0) 推荐(0) 编辑
摘要: 项目地址:https://www.tinkercad.com/things/azCWlFFOMtQ #include <Servo.h> Servo myServo; const int serialPort = 9600; const int potPin = A0; const int serv 阅读全文
posted @ 2020-12-03 12:03 meetrice 阅读(1089) 评论(0) 推荐(0) 编辑
摘要: const byte O = OUTPUT; const byte I = INPUT; const byte H = HIGH; const byte L = LOW; const int serialPort = 9600; const int redLedPin = 11; const int 阅读全文
posted @ 2020-12-03 11:59 meetrice 阅读(538) 评论(0) 推荐(0) 编辑
摘要: 项目地址: https://www.tinkercad.com/things/cgPamtJwfSP // Code for `APB-03 Love-O-Meter` // @see https://www.tinkercad.com/things/cgPamtJwfSP const int SE 阅读全文
posted @ 2020-12-03 11:38 meetrice 阅读(942) 评论(0) 推荐(0) 编辑
摘要: /* Input Pullup Serial This example demonstrates the use of pinMode(INPUT_PULLUP). It reads a digital input on pin 2 and prints the results to the ser 阅读全文
posted @ 2020-12-03 11:14 meetrice 阅读(343) 评论(0) 推荐(0) 编辑
摘要: /* Blink without Delay 无延迟闪烁 Turns on and off a light emitting diode (LED) connected to a digital pin, without using the delay() function. This means 阅读全文
posted @ 2020-12-03 10:55 meetrice 阅读(474) 评论(0) 推荐(0) 编辑
摘要: /* ReadAnalogVoltage 读取模拟电压 Reads an analog input on pin 0, converts it to voltage, and prints the result to the serial monitor. OPEN THE SERIAL MONIT 阅读全文
posted @ 2020-12-03 10:51 meetrice 阅读(657) 评论(0) 推荐(0) 编辑
摘要: /* Smoothing 平滑处理 Reads repeatedly from an analog input, calculating a running average and printing it to the computer. Keeps ten readings in an array 阅读全文
posted @ 2020-12-03 10:48 meetrice 阅读(298) 评论(0) 推荐(0) 编辑
摘要: /* Calibration 校准 Demonstrates one technique for calibrating sensor input. The sensor readings during the first five seconds of the sketch execution d 阅读全文
posted @ 2020-12-03 10:39 meetrice 阅读(541) 评论(0) 推荐(0) 编辑
摘要: /* Analog input, analog output, serial output Reads an analog input pin, maps the result to a range from 0 to 255 and uses the result to set the pulse 阅读全文
posted @ 2020-12-03 10:29 meetrice 阅读(704) 评论(0) 推荐(0) 编辑
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