The invention relates to the technical field of education and teaching, in particular to an electronic technology experimental box for classroom teaching. The electronic technology experimental box comprises a main board, two
daughter boards, an experimental box body and a power supply module, wherein the main board comprises a
nixie tube, a dial switch, an indicator light, a logic pen, a main switch, a direct
voltage and a
short circuit alarm, expansion wiring, an impulse
signal source, a single impulse, a fixed
resistor-
capacitor, an alarm circuit, an A / D or D / A switch, a bread board and other modules. The two
daughter boards are respectively a singlechip
system board and a programmable
system-on-
chip board. The size of the singlechip
system board is the same with the size of the bread board, thus the singlechip system board is convenient to dismantle and change. The introduction of the programmable system-on-
chip board enables online
programming to be realized, flexibility and convenience of the experimental box is strengthened, and the introduction of the two
daughter boards enables the experimental box to
upgrade to a high-performance singlechip system experimental box.