Category Archives: Power

TTGO T-Display Deep Sleep

10mA isn’t an acceptable sleep current. Here’s how to put the TTGO to sleep. Continue reading

Posted in Arduino, C, Coding, Digital, HOW-TO, Power | Leave a comment

Indistinguishable From Off

A Z80 computer stops working in the middle of programming — or does it? Continue reading

Posted in Digital, DrACo/Z80, Drexel, Electronics, Fundamentals, Power, Troubleshooting | Leave a comment

Back EMF

Lenz’s Law explodes an NMOSFET and kills an Arduino Uno. (Sometimes, Science goes bang.) Continue reading

Posted in Analog, Arduino, Digital, Electronics, Fundamentals, Power, Toys | Tagged , , , , , | Leave a comment

DIY Ionic charging

Charging the Fitbit Ionic without the charging cable.
(TL;DR: The center pin is 5V; the outer two are Ground.) Continue reading

Posted in Hacks, HOW-TO, Power, Reverse Engineering, Toys | Leave a comment