🔌 Master the Art of Soldering with MakerFocus Electronic Learning Beginner Kit Review

⏰ [ Improve Hands-on Ability ] Digital clock kit allow student to practice soldering techniques to improve hands-on skills, and cultivate interest in learning. ⏰ [ Time Can Be Calibrated ] The S1 button is used to calibrate the time, press and hold for more than 2 seconds to enter the calibration time state and exit, and quickly tap to adjust the time value. ⏰ [ Brightness Adjustable ] The control chip of the digital clock kit adopts AT89C2051, and the digital tube adopts 3 two-digit red common anode LED digital tubes, which display clear and high brightness. Because it is a scanning display mode, so the abcdefg pins of each digital tube using bus parallel connection, changing the resistance value of R4-R10 can change the display brightness. ⏰ [ High Welding Success Rate ] Each circuit is a mature circuit that has been verified for a long time, and the original parts provided are all brand-new components. As long as the welding is completed correctly, it can basically be successful. ⏰ [ Backup Battery ] Add a 3V button battery as a backup battery. AT89C2051 uses a backup battery when the power is off. The clock will not stop, but the digital tube will not display. The backup battery will lose its function after the power is on. The AT89C2051 uses an external power supply and the digital tube normal display.