DiamondMineShimmerCircuit

dirq·DiamondMineShimmerCircuit

DiamondMineShimmerCircuit

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About the DiamondMineShimmerCircuit PCB

DiamondMineShimmerCircuit is an open source PCB design by dirq, published on GitHub. It is a board, with 12 components from 10 distinct parts.

Other key parts include the CD4093BE. By type, the board carries 3 transistors, 1 IC, 1 battery holder and 1 diode.

It belongs with the power & battery designs in this gallery.

From the project

A solar-charged, dusk-activated LED shimmer circuit. No microcontroller, no firmware — pure analog CMOS logic and transistor drivers produce an organic, non-repeating sparkle field that charges by day and shimmers by night.

A solar-charged, dusk-activated LED shimmer circuit. No microcontroller, no firmware — pure analog CMOS logic and transistor drivers produce an organic, non-repeating sparkle field that charges by day and shimmers by night.

- Solar self-sufficiency — 5.5V panels with current-limited trickle charge - Smooth dusk activation — Schmitt hysteresis prevents twilight flicker - Gentle 40-second fade-in — RC ramp creates organic bloom - Multi-layer shimmer — dual oscillator beats produce non-repeating patterns - Correct day/night gating — PNP high-side switches ensure zero LED current in daylight -…

Main components on the DiamondMineShimmerCircuit

DiamondMineShimmerCircuit bill of materials (BOM)

12 components, 10 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	CD4093BE		U1
1	2N3904		Q1
2	2N3906		Q2, Q3
1	3xAA NiMH 3.6V		BT1
1	GL5528		LDR1
1	100K 100k		RV1
1	470k		R_div1
1	47k		R_div2
2	5.5V Solar		SC1, SC2
1	1N5819		D1

DiamondMineShimmerCircuit design files

The KiCad project lives in the dirq/DiamondMineShimmerCircuit repository on GitHub; these links point at the commit this page was built from.

Schematicdiamond-mine-shimmer.kicad_sch
BOMbom.csv

DiamondMineShimmerCircuit: common questions

How many components are on the DiamondMineShimmerCircuit?

12 components, from 10 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the DiamondMineShimmerCircuit design files?

From the dirq/DiamondMineShimmerCircuit repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.

Can I use the DiamondMineShimmerCircuit design in my own project?

The repository has no license, so all rights stay with dirq. Use it as a reference, and ask the author before reusing the design.

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