In this tutorial, we will see how to use UART interrupt of pic microcontroller. We will use the PIC18F4550 microcontroller to receive data serially. Unlike, a polling method, a UART interrupt method doesn’t wait for the data and keep executing or doing other tasks. As soon as UART receives register raises a full capacity interrupt … Read more
USART/UART is a serial communication protocol that is used to transfer data serially. In other words, it transfers data bit-by-bit. One of the main advantages of this communication method is that fewer wires are required to transfer. Consequently, the speed of data transfer will be slow as compared to parallel communication techniques. All mid-range and … Read more
TLE4999I3 is a linear hall effect sensor that adjusts its output on the basis of whether a magnetic field exists or not. It generates an output signal depending on the magnetic field density around it. If the magnetic flow density around it reaches a certain pre-set threshold value, the sensor senses the magnetic field and … Read more
In this tutorial, we will see how to use the DAC module of a PIC microcontroller. Digital to Analog converter is an electronics circuit that converts digital values into analog values. In other words, it converts digital voltage levels into an analog voltage levels. Furthermore, we can use DAC modules to generate different types of … Read more
CCS811 is an air quality sensor that senses different gasses present in the air we breathe. It has a metal oxide (MOX) sensor and a small microcontroller. The MOX sensor detects the volatile organic compounds and the microcontroller has an ADC converter that reads the analog values and an I²C interface to read from. This … Read more
BMP280 is a high precision sensor module that measures the atmospheric pressure and temperature in air. Not only this, but it can also measure humidity in the air. This six-pin module supports both SPI and I2C interfaces. It uses a BMP280 barometric pressure sensor. These sensors are pre-calibrated, unlike other sensors. Therefore, they start measuring … Read more
In this tutorial, we will go through an analog to digital converter or ADC module of pic microcontrollers. Almost all pic microcontroller series such as PIC10F, PIC12F, PIC16F, PIC18F, and PIC32 controllers have built ADC Modules. But its size depends on the device from which category/ series, you are using. In this tutorial, we will … Read more
HC-SR505 is a pyroelectric motion sensor. All the objects having a temperature above absolute zero release heat energy. This energy is in the form of infrared radiation. Even human bodies emit infrared light radiations. HC-SR505 sensor detects the motions of the object by measuring the changes in the level of infrared light radiations that is … Read more
MQ137 Sensor belongs to the MQ series which detects different gasses present in the air. The MQ137 is an ammonia gas sensor which detects the presence of ammonia gas. As the concentration of N gas rises in the air, the conductivity of the sensor tends to become higher. Using a circuit, you can convert this change … Read more
TMP36 is a temperature sensor chip which generates an analog voltage at the output which is linearly proportional to the Celsius temperature. Then convert this voltage into temperature based on a 10 mV/°C scale factor. It has a shutdown capability which limits the output current to less than 0.5 µA. It provides a supply current … Read more