hi! i have project to build a ecurity system using barcode. i plan to use it on my motorcycle. right now i stuck on some transistor stuff, please help me.. here is the idea : i'll build my project on AVR2313. this uC were used to calculate the data in barcode, and compare it with data had been strored before in uC. if they match so uC will send a signal to transistor. transistor here act as an