Posts tagged with “tp4054”

I built an FM radio receiver. As usual, the goal was to “build something useful and learn something new along the way.” What made this project especially exciting was that it involved working with an STM32 microcontroller—something I hadn’t done before, even though I’ve had several dev boards and programmers lying around for years. I also really wanted to use the headphone wire as the antenna, just like in commercial devices.

In my DIY projects, I frequently utilize lithium batteries and TP4054 chips to charge them. Charging current for a battery should not exceed 1 °C (capacity multiplied by one hour). At this rate, the battery will charge to full capacity in precisely one hour.