Thank you for being here for today's tutorial of our in-depth Raspberry Pi programming tutorial. The previous tutorial taught us how to install a PIR sensor on a Raspberry Pi 4 to create a motion detector. However, this tutorial will teach you how to connect a single seven-segment display to a Raspberry Pi 4. In the following sections, we will show you how to connect a Raspberry Pi to a 4-digit Seven-Segment Display Module so that the time can be shown on it.
Seven-segment displays are a simple type of Display that use eight light-emitting diodes to show off decimal numbers. It's common to find it in gadgets like digital clocks, calculators, and electronic meters that show numbers. Raspberry Pi, built around an ARM chip, is widely acknowledged as ...
Hello Friends! I hope you are well. Today, I am going to give you a detailed Introduction to NPN transistor. In this tutorial, we'll look at the NPN transistor, how it works, circuit diagram, output characteristics curve, and applications. It is a bipolar junction transistor mainly used for current amplification and switching purposes.
BJTs (Bipolar Junction Transistor) are divided into two types i.e. NPN transistor and PNP transistor. Both transistors are different in terms of their electrical composition and construction, however, both are used for amplification and switching purposes in one way or the other.
What is NPN Transistor?
NPN transistor is a bipolar junction transistor(BJT), composed of 3 semiconductor layers in a way that o ...
Electrical equipment has the potential to be extremely hazardous and every year in the US 30,000 incidents of electric shock
are reported. As well as causing burns and serious injury to the body, electric shocks can be life-threatening, while the electrical fires caused by damaged wires or malfunctioning equipment can also destroy buildings. When you are working on an electrical engineering project, it is essential to meet electrical safety standards and follow regulations in order to keep people and buildings from harm. Just as you need cybersecurity to protect ideas and abstract designs, regularly monitoring, inspecting and managing any practical electrical work with regular risk assessments will ensure that any system is safe to install and operate.
Checking for Exposed Wiring
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Hi Friends! I welcome you on board. Happy to see you around. In this post, I’ll detail the Introduction to Tip42c.
Tip42c is a medium power transistor mainly used for amplification and switching purpose. It is made up of silicon material and falls under the category of PNP transistors. The voltage across collector and emitter terminals is 100V and the voltage across base and collector terminals is 100V. The 5V is the voltage across base and emitter terminals which projects the value of voltage required to bias this transistor. The 6A is collector current which indicates the value of loads this transistor can support.
Just bear with me for a little while as I’ll be documenting the main features, pinout, applications, and datasheet of this tiny co ...
Hi Folks! I hope you’re well today. I welcome you on board. In this post today, I’ll walk you through the Introduction to 1n4734.The 1n4734 is a silicon planner power Zener diode that is employed as a low current voltage regulator. It is incorporated as a shunt regulator in many applications. This Zener diode conducts the current in both directions in contrast to the regular diode that conducts in one direction only i.e. regular diode conducts in forward biased condition only. This Zener diode conducts in both conditions forward biased condition and reverse biased condition. Power dissipation in this Zener diode is 1W and standard Zener voltage tolerance is ±10%.
I suggest you read this entire post till the end, as I’ll detail the complete Introduction to 1n4734 covering datasheet, pino ...
Hello readers, I hope you all are doing great. In this tutorial, we will learn how to send an email using ESP32 module. We will also learn to send text files, images or some sensor readings using the SMTP server using the ESP32 module.
In IoT (Internet of things), there are various applications where we need to send emails carrying information like sending some sensor readings, altering emails, images, text files and much more.
What is SMTP?
SMTP or simple mail transfer protocol is an internet standard for sending and receiving electronic mail (or email) where an SMTP server receives emails from the email client.
SMTP is also used for setting communication between servers.
Various email providers like Gmail, Hotmail, Yahoo, etc. have unique SMTP ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to explain you about Introduction to TL431. TL 431 are programmable shunt regulator diodes having three terminals. Its a low temperature coefficient diode and can be programmed from reference voltage (Vref) up to 36V when it is attached to 2 external resistors.
TL 431 has an impedance of 0.22 ohms and has a current range from 1mA to 100mA. In several different applications zener diodes can be replaced with TL 431 diode due to its efficiency. These applications include power supplies, Operational Amplifier (Op-amp) circuitry and digital voltmeters. TL-431 can either be used as positive or as negative voltage reference because it operates as shunt regulator. T ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to share my knowledge with all of guys about Introduction to IRF540. It is basically an N-Channel power Metal Oxide Silicon Field Effect Transistor (MOSFET) and operates in enhancement mode.
MOSFET is a lot sensitive in comparison to an FET (Field Effect Transistor) due to its very high input impdence. IRF540 can perform very fast switching as compared to the normal transistor. It is based on HEXFET technology and operates on the temperature ranging from -55 degrees celsius to 175 degree celsius. If we need some switching application between different signals or to perform any of amplification process, MOSFET IRF540 will be the best option in this case bec ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at detailed Introduction to DS1307. DS1307 is a real-time clock. It is a low power device and also has battery backup, which provides power when its external power supply not working or is off. It works on the I2C protocol. It is a bidirectional device and it can send and receive data on both sides.
DS1307 is used in industrial projects where constant time and date of some projects or working is required. I will give you a detailed overview of this time and date indicator IC. In today's post, we will have a look at its pinout, working, basic circuit, protocol, etc. I will also share some links of projects where I have interfaced it with Arduino and some other Microcontrollers. Friends, if y ...
Hello readers, I hope you all are doing great. In this tutorial, we will learn how to interface the BMP280 sensor with the ES32 module to get temperature, pressure and altitude readings. Later, in this tutorial, we will also discuss how to upload these sensor readings to a web server.
BMP280
BMP280 or Barometric pressure sensor is a module used to measure temperature pressure and altitude. The small size and low power consumption feature of this sensor makes it feasible for battery-powered devices, GPS modules and mobile applications etc.
Fig. 1 BMP280 Sensor
The BMP280 is the product of BOSCH which is based on Bosch’s proven Piezo-resistive pressure sensor technology featured with high accuracy, long term stability, linearity and high EMC robus ...
