This is a very easy to construct DIY project that you can do on a weekend.  With only a few components, you can build a sophisticated selectable 16-tone doorbell.

The circuit consists mainly of four (4) sections, first is the sound generator section, second is the audio amplifier section, third is the power supply section and lastly, the regulator section.

Workshop Title: "Arduino - An Entry Level Workshop"

Electro-Digital Crafts held a series of workshops entitled “Arduino – An Entry Level Workshop” at Laguna University, San Luis Sports Complex, Brgy. Bubukal, Sta. Cruz, Laguna, Philippines on February 16, 17, 23, 24, March 2 and March 10, 2018 at 9 in the morning until 5 in the afternoon.

Workshop Title: "Advanced PCB Designing with Introduction to Surface Mount Technology (SMT)"

Electro-Digital Crafts inspired the Computer Engineering Students of STI College Calamba City Campus as they held a 2-day Robotics Adventure Workshop entitled “Electronics for Robotics 102: Advanced PCB Designing with Introduction to Surface Mount Technology (SMT)” last August 26, 2017 9AM-5PM and September 2, 2017 9AM-5PM.  The said workshop was conducted in their campus and was attended by at least 26 participants.

Workshop Title: “Electronics for Robotics 102: Advanced PCB Designing with Introduction to SMD Reflow Soldering”

Electro-Digital Crafts held a one day workshop at STI College, Sta. Cruz, Laguna last July 22, 2017 entitled “Electronics for Robotics 102: Advanced PCB Designing with Introduction to SMD Reflow Soldering”.  The said workshop is one of the series of modules under the “Robotics Adventure Workshop” – a workshop aiming to promote Robotics Technology to students.