The Waveform Blinky Kit is a soldering project that demonstrates the fundamentals of analog signal generation and operational amplifier behavior. Designed for intermediate students, makers, and educators, it combines both surface-mount (SMD) and through-hole components to create a compact, functional analog circuit that blinks two LEDs using a true sine-wave signal — no microcontroller required.
The circuit generates, buffers, and compares an analog waveform to alternate the LEDs in a steady rhythm. The design includes clearly labeled test points that make it easy to connect an oscilloscope or multimeter for real-time signal observation. This allows learners to explore how each stage — oscillator, buffer, and comparator — transforms the waveform as it moves through the circuit.
The kit provides a practical way to build soldering skill and deepen understanding of analog electronics, waveform behavior, and signal conditioning. It is ideal for classroom labs, workshops, or individual study, where the goal is to connect theory to something tangible.
Assembly includes both hand soldering and optional reflow techniques. The guide covers safety, troubleshooting, and clear instructions for each component, making it suitable for anyone with basic soldering experience who wants to move beyond simple LED projects into real analog design.
- 1x Complete kit with stencil, pcb, and components
- Illustrated assembly guide (digital download)
Requires soldering supplies and basic tools as well as a 9V battery (not included)
- Analog Learning Experience: Teaches waveform generation, buffering, and comparator principles using real op-amps — no microcontroller required.
- Mixed-Technology Assembly: Combines surface-mount (SMD) and through-hole soldering for intermediate-level skill building.
- Educational Design: Ideal for STEM classrooms, lab demos, and hobbyist workbenches.
- Visible Signal Behavior: Dual LEDs display alternating output directly tied to a generated sine wave.
- Durable PCB: Professionally fabricated circuit board with labeled test points and clear silkscreen for easy learning.
- Easy Probing: Built on test points, makes exploring the analog circuit easy with an oscilloscope.
Documentation/assembly guide: https://docs.leemangeophysical.com/Waveform_Blinky/waveform_blinky/
- WARNING: CHOKING HAZARD – Product contains small parts. Not suitable for children under 3 years.
- WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
