From a2fb77eb7380610c227a5672edf07f550b9a6b5f Mon Sep 17 00:00:00 2001 From: Loes <l.bogers@hva.nl> Date: Tue, 26 Nov 2019 13:48:24 +0100 Subject: [PATCH] Update week09.md --- docs/assignments/week09.md | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/docs/assignments/week09.md b/docs/assignments/week09.md index eb2b0cf..60fecc4 100644 --- a/docs/assignments/week09.md +++ b/docs/assignments/week09.md @@ -89,11 +89,17 @@ Wait 12 hours, take out the crystal, reheat the solution and add 3-4 more tables Wait another 12 hours and take it out. Continue the 12 hour cycle replenishing the solution with alum depending on how big you want the crystals to grow. -*Threading tulle with conductive yarn* +**Threading tulle with conductive yarn** We laced the tulle with some conductive yarn to see if this makes it easier to solder the crystal/sensor to a circuit. -ELECTRIC PROPERTIES OF CRYSTALS +**Capacitive touch test** + +I tested the black alum diamonds by connecting them to a Bare Conductive Touch board, a dev board with capacitive touch sensing built-in. So I could see immediately if touching these crystals could trigger a response in a circuit. The big ones were perfect! The small mesh is triggered only when you touch the ones that sit on the conductive thread. See below. + +<iframe width="560" height="315" src="https://www.youtube.com/embed/--3tFxQ8eBc?controls=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> + +<iframe width="560" height="315" src="https://www.youtube.com/embed/KX75g5se9ik?controls=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> ##Bio-composite and Leather molding -- GitLab