【DIY Logic Circuit Ruler Soldering Kit】Explore digital electronics with our 5.5-inch DIY Logic Circuit Ruler Soldering Kit. This diy solder practice kit features a functional binary counter circuit (0–15) and multiple flip-flop learning circuits (SR / JK / D / T), allowing students and beginners to practice soldering while learning real digital logic behavior.
【Binary Counter 0–15 with 8-4-2-1 LED Display】The counter operates within a valid range of 0 to 15, displayed through bright 8-4-2-1 binary LEDs. Press “+” to increase the count by 1 and “–” to decrease by 1. All LEDs OFF = 0, all LEDs ON = 15, making binary counting easy to visualize and understand.
【Rising-Edge Triggered Flip-Flop Simulation】All flip-flops in this diy electronics kit are rising-edge triggered. The output updates only when the CLK button generates a rising edge (0→1). This helps learners clearly understand the difference between rising and falling edges, and how digital memory circuits change states.
【Ideal for STEM Education】A perfect educational tool for classrooms, STEM workshops, science labs, and home learning. This DIY soldering project kit helps students understand counting, sequencing, and memory in digital circuits while improving hands-on soldering skills and critical thinking.
【Full-Color Manual + Great STEM Gift】 Includes a full-color English manual with step-by-step soldering instructions, circuit diagrams, and clear explanations of counters and flip-flops. A unique gift for students, makers, and electronics enthusiasts—great for birthdays, holidays, and back-to-school STEM learning.
How the Binary Counter & Flip-Flops Work
Binary Counter Circuit
The counter operates within a valid range of 0–15, displayed using the 8-4-2-1 binary LEDs.
All LEDs OFF indicates 0
All LEDs ON indicates the maximum value 15
Press the “+” button to increase the count by 1, and press the “–” button to decrease the count by 1.
Flip-Flops (SR / JK / D / T)
All flip-flops in this kit are rising-edge triggered. The output updates only when the CLK button generates a rising edge (signal changes from 0 to 1). The LEDs will turn ON or OFF based on the new output state.
The output does not change on the falling edge (signal changes from 1 to 0).
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