Circuit-Designs

Contents:

1. Breadboard power supply
2. Raspberry Pi FS Hat v01
3. Arduino Battery Powered clone with extended EEPROM and clock(BACEE)
4. Op Amp Logarthmic amplifier

---

1-Breadboard Power Supply

• Converts the input ac/dc voltage(which does not exceed 35V) to output of 5 volts. This can be used to power circuits that require 5V as input supply for example Arduino(Requires 5V input power supply).
• Connections: Connect a input power supply to the jack and the output is obtained fron pin heads.
• To view/modify the source file, download the repository and navigate to 1-Breadboard Power Supply folder and open the bread power supply schematic.pro project file in KiCAD.

3D View
Schematic Diagram

2-Raspberry Pi FS Hat v01

• Connecting a DHT11/12 sensor to the raspberry pi.
• To view/modify the source file, download the repository and navigate to 2-Raspberry Pi FS Hat v01 folder and open the 2-Raspberry Pi FS Hat v01.pro project file in KiCAD.

3D View
Schematic Diagram

5-Project BACEE

Front view	Back view

• This is Arduino Battery Powered clone with extended EEPROM and clock.
• To view/modify the source file, download the repository and navigate to 5-Project BACEE folder and open the 5-Project BACEE.pro project file in KiCAD or click here to navigate to repo.

6-OP-Amp Log Amplifier

Schematic	Waveform

A log amplifier is an amplifier for which the output voltage Vout is K times the natural log of the input voltage Vin. Logarithmic amplifiers are used to perform mathematical operations like multiplication, division and exponentiation.

---