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View I2C_Scanner.ino
#include <Wire.h>
void setup() {
Serial.println("\nI2C Scanner");
void loop() {
byte error, address;
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
Created on Fri Dec 6 23:27:32 2019
@author: jaordonez
numeros = 1 + 2 * 3/ 4
View NodeMCU_ESP8266_Thingspeak_1.ino
#include "ThingSpeak.h"
#include <ESP8266WiFi.h>
//---------------- Fill in your credentails ---------------------
char ssid[] = "xxx"; // your network SSID (name), tên wifi
char pass[] = "xxxxx"; // your network password, password
unsigned long myChannelNumber = 1; // Replace the 0 with your channel number, channel của bạn
const char * myWriteAPIKey = "xxxxx"; // Paste your ThingSpeak Write API Key between the quotes, write API key
View ESP8266_MQTT_pubsub_mqttlen.ino
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
const char* ssid = "wifi_name";
const char* password = "pass";
const char* mqttServer = "";
const int mqttPort = 10769;
const char* mqttUser = "your_username";
const char* mqttPassword = "your_password";
View esp32-blink.ino
View ESP8266_OLEDSPI.ino
/**The MIT License (MIT)
Copyright (c) 2016 by Rene-Martin Tudyka
Based on the SSD1306 OLED library Copyright (c) 2015 by Daniel Eichhorn (,
available at
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
View Input_Output_TIVACxxx.c
#include "tm4c123ge6pm.h"
unsigned long In; // input from PF4
unsigned long Out; // output to PF2 (blue LED)
// Function Prototypes
void PortF_Init(void);
// 3. Subroutines Section
View Input_Output_TIVAC.c
// 0.Documentation Section
// main.c
// Runs on LM4F120 or TM4C123
// C6_InputOutput, Input from PF4, output to PF2 (blue LED)
// Authors: Daniel Valvano, Jonathan Valvano and Ramesh Yerraballi
// Date: July 8, 2013
// LaunchPad built-in hardware
// SW1 left switch is negative logic PF4 on the Launchpad
// SW2 right switch is negative logic PF0 on the Launchpad
View Print_scanf.c
while(side != 0){
printf("Give room side(zero to quit):");
scanf("%ld", &side);
area = Calc_Area(side);
if(area != 0){
printf("\nArea with side of %ld m is %ld sqr m\n",side,area);
} else {
printf("\n Size cannot exceed 25 meters\n");
View For_loop.c
int main(void) {
unsigned long side; // Chiều dài của phòng đơn vị mét
unsigned long area; // Diện tích phòng đơn vị mét vuông
UART_Init(); // gọi subroutine để init uart
printf("This program calculates areas of square-shaped rooms\n");
for(side = 1; side < 50; side = side+1){
area = Calc_Area(side);
printf("\nArea of the room with side of %ld m is %ld sqr m\n",side,area);