With STC89C52 as the core, it integrates USB to TTL automatic download module, EEPROM module, clock module, 4*1 independent/4*4 matrix button module, LED module, PWM module, temperature/infrared sensor, 8*8 LED dot matrix, 8 bits Digital tube, stepper motor drive module, can be connected to LCD1602, LCD9648, LCD12864 and 2.4G wireless modules.
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