Telegram Group & Telegram Channel
#include <Wire.h>

void setup() { Wire.begin(); //creates a Wire object

// set I/O pins to outputs
Wire.beginTransmission(0x20); //begins talking to the slave device
Wire.write(0x00); //selects the IODIRA register
Wire.write(0x00); //this sets all port A pins to outputs
Wire.endTransmission(); //stops talking to device
Wire.beginTransmission(0x20);//begins talking again to slave device
Wire.write(0x01); //selects the IODIRB register
Wire.write(0x00); // sets all port B pins to outputs
Wire.endTransmission(); //ends communication with slave device
}

void loop()
{
Wire.beginTransmission(0x20); //starts talking to slave device
Wire.write(0x12); //selects the GPIOA pins
Wire.write(00000011); // turns on pins 0 and 1 of GPIOA
Wire.endTransmission(); //ends communication with the device
Wire.beginTransmission(0x20); //starts talking to slave device
Wire.write(0x13); //selects the GPIOB pins
Wire.write(00000001); //turns on pin 0 of GPIOA
Wire.endTransmission();//ends communication with the device
}



tg-me.com/micropython_iot/206
Create:
Last Update:

#include <Wire.h>

void setup() { Wire.begin(); //creates a Wire object

// set I/O pins to outputs
Wire.beginTransmission(0x20); //begins talking to the slave device
Wire.write(0x00); //selects the IODIRA register
Wire.write(0x00); //this sets all port A pins to outputs
Wire.endTransmission(); //stops talking to device
Wire.beginTransmission(0x20);//begins talking again to slave device
Wire.write(0x01); //selects the IODIRB register
Wire.write(0x00); // sets all port B pins to outputs
Wire.endTransmission(); //ends communication with slave device
}

void loop()
{
Wire.beginTransmission(0x20); //starts talking to slave device
Wire.write(0x12); //selects the GPIOA pins
Wire.write(00000011); // turns on pins 0 and 1 of GPIOA
Wire.endTransmission(); //ends communication with the device
Wire.beginTransmission(0x20); //starts talking to slave device
Wire.write(0x13); //selects the GPIOB pins
Wire.write(00000001); //turns on pin 0 of GPIOA
Wire.endTransmission();//ends communication with the device
}

BY Micropython & IOT




Share with your friend now:
tg-me.com/micropython_iot/206

View MORE
Open in Telegram


Micropython & IOT Telegram | DID YOU KNOW?

Date: |

How to Invest in Bitcoin?

Like a stock, you can buy and hold Bitcoin as an investment. You can even now do so in special retirement accounts called Bitcoin IRAs. No matter where you choose to hold your Bitcoin, people’s philosophies on how to invest it vary: Some buy and hold long term, some buy and aim to sell after a price rally, and others bet on its price decreasing. Bitcoin’s price over time has experienced big price swings, going as low as $5,165 and as high as $28,990 in 2020 alone. “I think in some places, people might be using Bitcoin to pay for things, but the truth is that it’s an asset that looks like it’s going to be increasing in value relatively quickly for some time,” Marquez says. “So why would you sell something that’s going to be worth so much more next year than it is today? The majority of people that hold it are long-term investors.”

Start with a fresh view of investing strategy. The combination of risks and fads this quarter looks to be topping. That means the future is ready to move in.Likely, there will not be a wholesale shift. Company actions will aim to benefit from economic growth, inflationary pressures and a return of market-determined interest rates. In turn, all of that should drive the stock market and investment returns higher.

Micropython & IOT from us


Telegram Micropython & IOT
FROM USA