Installation Instructions for 1602 LCD Display Clock

Function description: three date display modes; two week display modes; Celsius(℃) / Fahrenheit(℉) temperature display; 24-hour /12-hour display mode; settable alarm time interval for hours; 3-level automatic brightness adjustment function; 6-level brightness adjustment function; 3 groups of alarm clock; 1 schedule reminder function; work day alarm clock switch;
Operating parameters: 5V USB power supply with 20mA operating current; ?
Mounting components: small components such as resistors and ceramic capacitors should be first installed, and then install larger size components, the installation picture of the photo resistor and the thermistor is shown below. The IC has a specified direction, whose notch should be aligned with the notch direction of the circuit board. The longer pin of the 10uF capacitor stands for its positive electrode, which corresponds to the positive direction of the circuit board.

Installing the shell: the black acrylic board and LCD display should be installed first, and then? install the circuit board and the shell as shown below.

Circuit schemati

 

 

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