The PAM8403 is an Amplifier Board that can be powered using simple 5V input and could drive two 3W + 3W stereo speakers. It is an excellent choice for, who wants a Class-D stereo audio amplifier in a small board space.
The PCA9685 is a 16-channel I2C-bus controlled LED controller optimized for Red/Green/Blue/Amber (RGBA) color backlight. Each LED output has individual 12-bit resolution (4096 steps) PWM controller with a fixed frequency.
This is a mini LCD Digital Thermometer for Fridge Freezer, Insert Size 46mm x 26.6mm, Cable Length 1m (Black or White Color) If you open the battery cover to put in two LR44 batteries correctly, pay attention to the polarity.
The PWM transfer voltage module LC-LM358-PWM2V converts the PWM digital signals into 0 to 10V analog signals. It can be used as signal interface switching for PLC or other industrial control boards.
The Raspberry Pi 1 to 3*40 Pins GPIO Expansion Shield, Expand General Purpose Input/ Outputs from 1 to 3 Increase the amount of 40 pins with this expansion shield. Includes mounting hardware for added security.