electronic playground

An electronic playground PCB featuring the ATmega2560 chip. Programmer built in via mini usb port ant the FT232R chip. The circuit includes a 5x5 led array, an MQ2 gas sensor, an analog to digital converter with the lm358 chip for the MQ2, active buzzer, passive buzzer, 2 push buttons, a HC-05 bluetooth chip, a 16x2 lcd display, 7 segment display, 3 servo connectors, and all the pins are brought out to a 40x2 female pin header.