Circuit Builder is designed to be an introduction to constructing and operating electronic circuits. Intuitive controls and layout make Circuit Builder the perfect App for understanding the basics of electrical and electronic circuits. Circuit Builder has been optimised for use on tablets, but also works well on large screen smart phones.

Build your own virtual circuits using any combination of electrical components.
The easy to use library of components includes batteries, switches, lamps, resistors (fixed and variable), capacitors, fuses, circuit breakers, buzzers, heaters and motors. Connect components using virtual wires to make a circuit. Put the App into operate mode to see it work. You can even use virtual multimeters to measure voltage, current and resistance.

Circuits can be viewed and built in either component or schematic view.

The component library contains the following items:

Batteries*
1.5V, 6V, 9V and 12V

Switches
Push-to-make, Push-to-break, On-Off, 2-position single-pole, 3-position single-pole,
3-position double-pole, Thermal and Relay

Lamps
6V (5W) clear, 12V (10W) clear, 12V (20W) clear, 12V (20W) red, 12V (20W) yellow and 12V (20W) blue

Resistors
10Ω (5W), 50Ω (5W), 100Ω (5W), 500Ω (5W), 1kΩ (5W), 5kΩ (5W) and 10kΩ (5W)

Variable Resistors
10Ω, 25Ω, 50Ω, 100Ω, 1kΩ and 10kΩ

Capacitors*
500μF, 1mF, 5mF, 50mF, 100mF, 500mF and 1F

Fuses
0.5A, 1A, 1.5A, 2A, 3A, 4A, 5A, 7.5A and 10A

Circuit Breakers
0.5A, 1A, 5A and 10A

Miscellaneous
6V Buzzer, 24V Heater (200W) and a 12V Motor (15W)

*Maximum of four batteries and one capacitor per construction.

Step 1. Download Circuit Builder Mod (Paid for free Free purchase) APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Circuit Builder Mod (Paid for free Free purchase) APK will begin installing on your device. Simple.

Step 1. Download HappyMod APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Search Circuit Builder Mod, click Download.
Step 4: You can download 100% working mods on HappyMod with one click.