ESP01-Desktop decoration small lantern

1. Project introduction

    This project includes one schematic diagram and two PCBs, namely the square lamp PCB and the round lamp PCB. The ESP-01 module (purchased by a newcomer in an electronics mall for 1 yuan) is used as the main control. Its IO2 pin output controls 5 WS2812B lamp beads (100 pieces for 17 yuan). In order to reduce costs, the serial port download circuit is not added, and you need to prepare your own USB -TTL downloader (about 5 yuan) or ESP-01 downloader (about 7 yuan) is the project download program. The rest of the components used are common components: AMS1117-3.3*1 piece, 10uF capacitor*2 pieces, 100nF (0.1uF) capacitor*9 pieces, 12K resistor*2 pieces, Type-C female socket*6P piece, several pin headers , 2 to 4 M2*4 screws.

    The project shell source file (SLDPRT file), STL file, source code, etc. are all in the attachment. I hope that the majority of electronics enthusiasts will continue to innovate.

2. 3D drawing and physical display of PCB

3. Program description

         The program is very simple. Just use Ardiono IDE and call the <FASTLED> library. The lighting mode has been set to rainbow gradient in this program. You can change other modes by yourself.

4. Program download instructions

         When downloading the program , connect the four wires in the red box to the USB to TTL module, short-circuit the two pins in the green box, and then insert it into the computer to download the program; when the program is running , cancel the short-circuiting of the two green pins and re-upload the program. Just use electricity.

5. Shell file description

          The casing is drawn with SolidWorks 2018 and is divided into two parts: lampshade and lamp holder. It comes with a card slot, heat dissipation hole and Type-C interface slot. The lamp holder part has four screw holes, which can be used to fix the PCB. Use M2*4 screws. Can.