containsmachine

IC card

Overview

Campus card, NFC PCB card, no problem in actual test, can light up by adding LED, current limiting resistor 1k

1661917172872.jpeg

BOM download

PCB_PCB_IC Card 1_2022-09-24.pdf

PCB_PCB_IC Card 1_2022-09-24.json

61413

Rhythm beacon music level light

Introduction: Music level light with full analog circuit, music level light with full analog circuit, named Rhythm Lighthouse!

Full analog circuit music level light, full analog circuit music level light, named Rhythm Lighthouse! The effect is very good, the sensitivity is adjustable, the light board is in the accessory and is a flat light, named Rhythm Lighthouse! Some bugs have been fixed

IMG_20220822_103004.jpg

VID_20220819_201827.mp4

lighthouse.json

BOM download

PCB_NEW_PCB_2022-09-24.pdf

PCB_NEW_PCB_2022-09-24.json

NEW_PCB_2022-09-24.pcbdoc

Gerber_NEW_PCB.zip

Schematic_Rhythm Lighthouse Music Level Light_2022-09-24.pdf

SCH_Rhythm Lighthouse Music Level Light_2022-09-24.json

Base_2022-09-24.schdoc

61414

M18 Bluetooth module adapter board

Introduction: M18 Bluetooth module adapter board, Bluetooth music receiver

Connect the M18 Bluetooth module, draw out the button, add the charging module, battery power supply, no noise

IMG_20220822_055542.jpg

BOM download

PCB_PCB_M18 Bluetooth module adapter board_2022-09-24.pdf

PCB_PCB_M18 Bluetooth module adapter board_2022-09-24.json

PCB_M18 Bluetooth module adapter board_2022-09-24.pcbdoc

Gerber_PCB_M18 Bluetooth module adapter board.zip

Schematic_M18 Bluetooth module adapter board_2022-09-24.pdf

SCH_M18 Bluetooth module adapter board_2022-09-24.json

Sheet_1_2022-09-24.schdoc

61415

Sound simulation acquisition module, microphone module

Introduction: A pure discrete component sound collection module that outputs analog signals and can be used with another level light module of mine. The effect is very good.

A pure discrete component sound collection module that outputs analog signals and can be used with another level light module of mine. The effect is very good. Watch the video.

999146E02E25ACD8AA52BE9735729805.mp4

Level module.json

BOM download

PCB_PCB sound simulation collection_2022-09-24.pdf

PCB_PCB sound simulation collection_2022-09-24.json

PCB sound simulation collection_2022-09-24.pcbdoc

Gerber_PCB sound simulation collection.zip

Schematic_sound simulation acquisition module, microphone module_2022-09-24.pdf

SCH_sound simulation acquisition module, microphone module_2022-09-24.json

Sheet_1_2022-09-24.schdoc

61416

Adjustable bright flashlight

Introduction: 12-watt strong flashlight, using pure hardware design mos tube linear dimming, 4 3-watt lamp beads, 15-degree lens manual strobe, capable friends can add a ne555 chip to automatically strobe, this is the suggestion of netizens , I’m going to work on the next project!

The tp4056x chip charges the lithium battery, and the MOS tube is controlled by an adjustable resistor to achieve dimming. The light board needs to add a heat sink, and it is best to add a fan!
Share the lamp bead link below the lamp board file
- [Taobao]

Lens link - [Taobao]

PCB_led light board_.json

IMG_20220716_102627.jpg

IMG_20220716_102604.jpg

IMG_20220716_102548.jpg

IMG_20220716_102541.jpg

BOM download

PCB_PCB_Flashlight Main Control Board_2022-09-24.pdf

PCB_PCB_Flashlight Main Control Board_2022-09-24.json

PCB_Flashlight Main Control Board_2022-09-24.pcbdoc

Gerber_PCB_Flashlight main control board.zip

Schematic_Adjustable Highlight Flashlight_2022-09-24.pdf

SCH_Adjustable strong light flashlight_2022-09-24.json

Sheet_1_2022-09-24.schdoc

61417

electronic

Design Files

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Update:2025-06-23 02:00:47

The NRF I wrote can't be used. It's urgent. Please take a look. The code is as follows
void INit() { SPI_InitTypeDef SPI_InitStructure; //Declare the structure GPIO_InitTypeDef GPIO_InitStructure; //zhaodao which module, then turn on the corresponding clock, configure the working mode o
What are the development environments and tools for STM8 microcontrollers?
Anyone familiar with the development environment of STM8, please introduce it to me!
【Talk about DSP】My experience with DSP
[align=left][size=4] The first microcontroller I came into contact with was DSP. It was 8 years ago. It is not an exaggeration to say that we were not meant to be together. Later, I plunged into the A
Weird breakpoint debugging issues
When I debugged the program at breakpoints in the past, the program inexplicably entered the system assembly code _HwPktPoll and died there. I also posted a post asking for help, but never got an answ
28027 Ask for help with the problem encountered in the flash download program
Hello everyone! I'm a newbie! I bought a TI launchpad development board to practice. When using the RAM cmd (28027_RAM_lnk.cmd) file, I successfully downloaded my program to the RAM. It can work when
Why is the output of this DCDC unstable?
I used a DCDC (as shown in the picture) MP2143 from MPS. During use, I found that the output would fluctuate greatly when I touched it, causing the system to restart or freeze. After checking, I found

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