Yet Another Programming and Electronics Blog raspberry pi orange pi esp8266 microcontrollers arduino attiny wemos nodemcu gnu linux windows

This is a review, teardown and (improvement) of a Mobile Speaker with LED Flash Light. I bought it for PHP 100 or about ~$2. It has a nice box with the descriptions: DKNSH MD-329 Main Technique Parameter 1. Trumpet specification: 50mm*2 2. Load power: 3W*2 3. LED quantity: 6PCS Power Supply Method 1. The DC5V/500mA…