Internal RTC in STM32
RTC can be used for chronometers, alarm clocks, watches, small electronic agendas, and many other devices and today we are going to learn HOW to access internal RTC in STM32.
using DHT11 sensor with STM32
DHT11 digital temperature and humidity sensor is a composite Sensor contains a calibrated digital signal output of the temperature and humidity. Today in this tutorial we will be using DHT11 sensor with STM32.
How to connect LCD using I2C in LPC2148
connect the first pin of the PCF8574 to the VSS of the LCD, 2nd pin to the VCC and so on. The input pins of the PCF8574 i.e. SCL and SDA should be connected with the SCL and SDA of the microcontroller.
Receiving serial data in STM32
We continuously check for incoming data and when data is received, display it on the lcd.
2.) Use interrupt. Microcontroller does it’s normal operations, and whenever the data receiving completes, an interrupt is generated and ISR is executed, after completing ISR, control returns back to normal operation.