Traditional Chinese Practical Combination timing kit: Circuit Design, Parts List & Workshop Prototype Guide
In short: Traditional Chinese Practical Combination timing kit. This entry documents a circuit & prototype taken from Chinese practical-technology literature, written for small-scale makers and home producers. The text below is the full English translation of the original Chinese workshop notes, covering materials and quantities, the step-by-step sequence, and the practical cautions recorded in the source. Roughly 1962 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
Combined timed pill boxThe combined timing pill box circuit is shown in Figure 197. The timing components it uses are the same as the single timing pill box, except that the counting part uses a decimal counter. Taking IC1 as an example, every time 4 timing signals are counted, a high level is output from Q4 and sent to the OR gate IC5a. The output of IC5a is high level, and IC5a and b start to oscillate with an oscillation frequency of 1Hz. Control the multivibrator composed of IC6c and IC6d to start oscillating, causing BL to emit intermittent chirping sounds to remind the patient to take medicine. …
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Lei Cheng
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