These 10 segment bar graph LEDs have many uses. With a compact footprint, simple hookup, they are easy for prototyping or finished products. Essentially, they are 10 individual BLUE LEDs housed together, each with an individual anode and cathode connection.
The BPW34 is a tiny, general purpose PiN photodiode . This photodiode has a ton of uses, one of which is to use it is a mini solar cell to power your project. The cell is sensitive to a wide range of light wavelengths (430-1100nm), so it\'should produce power in a number of different settings. The rated open circuit voltage is 350mV (900nm, 1mW/cm 2...
This is the P2N2222A, an NPN silicon BJT (Bipolar Junction Transistor). This little transistor can help in your project by being used to help drive large loads or amplifying or switching applications. The P2N2222A is specifically rated at 40V and 200mA max
This is the kind of seat-of-the-pants engineering genius that you only find in hackspaces, garden sheds or Shenzhen.
it\'s not for the faint-of-heart, it\'s not particularly spec-friendly, but it is useful and cool for Pi Zero hackers!