This article show how to make a simple Arduino Battery Charger Circuit. Here, charger stop and start charging using MOSFET and then Arduino read battery temperature with TMP36 sensor and decide safe charging. Additionally, circuit is simple and work with basic components. Arduino Code: Code Explanation: Circuit Working: Parts List: Components Values Qty Resistors 10k […]
Simple 12V Battery Charger Circuit using TIP41 Transistor
This is a Simple 12V Battery Charger Circuit using TIP41 Transistor, as it uses one NPN power transistor TIP41 and one 13.8V Zener diode. Furthermore, the circuit is cheap, easy and safe for charging 12V lead acid battery and works for small 7Ah to 20Ah batteries also, further, it is a good circuit for learning […]
Arduino Sine Wave Output Circuit with RC Filter
This project show how to make simple Arduino sine wave circuit with RC filter; as Arduino cannot give real analog output, but it only gives PWM signal. So we use low pass RC filter to change PWM into smooth sine wave; also two potentiometer control amplitude and frequency, therefore, this circuit is very easy and […]
7812 Based 12 Volt DC Power Supply Circuit
Many electronic projects need 12V clean power for output devices like LCD, graphic LCD and DC motors. A simple AC to DC converter using 7812 regulator, provides fixed 12V for small devices and general use; also big 100uF capacitor remove big AC ripple from rectified DC. Then small 0.1uF capacitor remove small ripple from regulated […]
Natural Bird Sound Generator Circuit using Transistors
This is a small Natural Bird Sound Generator Circuit using Transistors, as this circuit uses two BC547 transistors, some resistors, capacitor and a speaker. In addition, the circuit is simple for beginners and works on low voltage like 3V to 9V and is also good for toys, hobby projects, alarms and for school projects. Circuit […]
Arduino Chirping Bird Sound Circuit
This small Arduino project make cute bird sound like real chirping and also which make our room feel like forest; with only one button press and tiny speaker sing like little bird, sound is clear and fun, anyone can make in few minutes. Therefore, this Arduino Chirping Bird Sound Circuit has a very low cost, […]