This is a sort of sequel to the article ‘2 × single = 1 × dual’. In this case, two dual opamps are combined to make one new quad opamp. This allows many possible variations, and again it allows two completely different types of dual-opamps to be used. It is very easy to replace a[…]
Read moreCategory: How to Draw Circuit Schematic Diagram
4 bit Arithmetic and Logic Unit (ALU ) – Design concept Schematic Circuit Diagram
Hey there, In this section, I have made a nice conceptual circuit diagram that will help you to understand how ALU inside the computer works. Schematic Diagram: What is ALU? ALU is a combination of a digital circuit that does the arithmetic operation (like Adding two number, subtracting, multiply, division and logic operation (like AND, OR, NOR, NOT,[…]
Read more
Noise-Driven Sound Generator Schematic Circuit Diagram
The sound generator shown here uses its built-in loudspeaker as a microphone when it is in the standby state. As soon as it detects a noise that exceeds an adjustable threshold level, it becomes active. This small, clever circuit can be used as an alarm generator that reacts to noises. You can also use it[…]
Read moreESP-WROVER-KIT Schematic Circuit Diagram
Description: This section describes several revisions of ESP-WROVER-KIT development board. All versions of ESP-WROVER-KIT are ready to accommodate an ESP-WROOM-32 or ESP32-WROVER module. ESP-WROVER-KIT has dual port USB to serial converter for programming and JTAG interface for debugging. Power supply is provided by USB interface or from standard 5 mm power supply jack. Power supply selection is done with[…]
Read moreESP32 Demo Board V2 Schematic Circuit Diagram
Description: One of first feature-rich evaluation boards that contains several pin headers, dip switches, USB to serial programming interface, reset and boot mode press buttons, power switch, 10 touch pads and separate header to connect LCD screen. ESP32 Demo Board at first glance The header leading to the SDIO interface looks suspiciously mismatched in length[…]
Read moreESP32 Core Board V2 / ESP32 DevKitC Schematic Circuit Diagram
Description: Small and convenient development board with ESP-WROOM-32 module installed, break out pin headers and minimum additional components. Includes USB to serial programming interface, that also provides power supply for the board. Has press buttons to reset the board and put it in upload mode. ESP32 DevKitC is a low-footprint, minimal system development board which[…]
Read moreESP32-WROVER Schematic Circuit Diagram
Description: A step upgrade of ESP-WROOM-32 described above with an additional 4 MB SPI PSRAM (Pseudo static RAM). Module is provided in two versions: ‘ESP32-WROVER’ with PCB antenna (shown below) and ‘ESP32-WROVER-I’ with an IPEX antenna. Overview: ESP32-WROVER is a powerful, generic WiFi-BT-BLE MCU module that targets a wide variety of applications, ranging from low[…]
Read moreESP-WROOM-32 Schematic Circuit Diagram
Description: The smallest module intended for installation in final products. Can be also used for evaluation after adding extra components like programming interface, bootstrapping resistors and break out headers. Compact Design: The ESP-WROOM-32, measuring 25.2mm x 18mm only, contains the ESP32 SoC, flash memory, precision discrete components, and PCB antenna to provide outstanding RF performance in space-constrained applications.[…]
Read more
How to use relay example of basic schematic circuit diagram?
How to use a relay with circuit diagrams? A switch operated electrically is known as relay. The current passing through relay’s coil. The coil will generates a magnetic field which is attracting a lever & changes contacts of switch. The current of coil can be on or off so, relay has two switch positions &[…]
Read more
Tutorial 1: Pre-requisites to draw schematic diagram
Tutorial 1: Pre-requisites to draw schematic diagram What is schematic diagram? A schematic is a symbolic diagram of a circuit. This method is used to understand or analysis the work of a circuit. Basically schematic is a uncommon computer application, it is used to produce description of circuit for machine readable and use to justify[…]
Read more