My project is to build a car controlled by Bluetooth. first I'm building a H-bridge to control the motors. I'm using a 3v DC motor that needs a current of, 0.26A(no load) - 0.69A(with load) and I'm using 2N2222A transistor here is the data sheet (https://www.onsemi.com/pub/Collateral/P2N2222A-D.PDF) connected to a 9v battery datasheet
eventually the transistors base will be powered by a arduino or other micro controller but for now im just connecting the transistors to the battery.
The H-bridge is connected properly, when i test with an LED it works fine. however when i connect to my DC motor the voltage collapse. the transistors can handle the current. the battery can supply the current (worked when directly connected to power supply) required.
what i think could be the problem is not correctly understanding gain of my transistors. but i have tried different resistors in hopes of getting it right and tried to understand and use the formulas to calculate the correct base resistor values (which may have not been correct) but i am still having no luck with it.
if it helps i was following this Instructables tutorial: H Bridge on a Breadboard
I tried to make the schematic as neat as possible, i just wanted to show how every thing is wired exactly on my bread board.