WTM Light UP LED Badge, solderless simple pressure fit design!
Please see full parts and build instructions here: https://www.stacydevino.com/2016/05/women-techmakers-light-up-badges-build-instructions/
Please see full parts and build instructions here: https://www.stacydevino.com/2016/05/women-techmakers-light-up-badges-build-instructions/