tpa 3118 power amplifier

BOM download

PCB_PCB_555 chip speed regulation_2022-09-25.pdf

PCB_PCB_555 chip speed regulation_2022-09-25.json

PCB_555 chip speed regulation_2022-09-25.pcbdoc

Gerber_PCB_555 chip speed regulation_2022-09-25.zip

Schematic_555 chip speed regulation_2022-09-25.pdf

SCH_555 chip speed regulation_2022-09-25.json

pwm square wave_2022-09-25.schdoc

61173

#十三级电竞#usb voltage ammeter

Introduction: Jialichuang Summer Training Camp 2022, based on the USB ammeter made by N32G430C8L7, you can check the voltage and current of USB when it is working.

Project introduction
 
The reproduction of the voltage and ammeter in the summer training camp can be said to be the longest voltage and ammeter on the entire platform (who else). You may be curious why I made it so long. In fact, my idea was to make a Mitsubishi Army Spur. However, the tolerances of the 3D printed casing did not match well, so we are still adjusting. For the time being, we can only run naked on
 
the hardware part
. 1. This time, the N32G430C8L7 provided by National Technology is used as the main control
. 2. The display part uses 0.91-inch 4P I2C The white OELD screen module
3. Uses a high-voltage 1117 for step-down, which can achieve 4-18v measurement
 
software. Part of
the software adopts the official program and will not go into too much detail. Serial port burning and burning methods It's relatively simple, press boot to burn.
Official project address: https://oshwhub.com/limengmeng12345/ji-chu-ying-usb-dian-ya-biao
 
competition LOGO
 
 
 
 

BOM download

PCB_PCB_#The 7th Lichuang Electric Competition#usb ammeter_2022-09-25.pdf

PCB_PCB_#The 7th Lichuang Electric Competition#usbAmmeter_2022-09-25.json

PCB_#The 7th Lichuang Electric Competition#usb ammeter_2022-09-25.pcbdoc

Gerber_PCB_#The 7th Lichuang Electric Competition#usb ammeter.zip

Schematic_#The 7th Lichuang Electric Competition#usb voltage and ammeter_2022-09-25.pdf

SCH_#The 7th Lichuang Electric Competition#usb voltage ammeter_2022-09-25.json

Voltage and ammeter schematic_2022-09-25.schdoc

61174

#十三级电竞#USbAmmeter

Introduction: Portable USB voltage and ammeter manufactured using N32G430 series MCU of domestic chip and national technology

 
 
* 1. Project function introduction
     1) A portable voltage and ammeter based on N32G430C8L7, which can detect real-time voltage and current.
     2) The current and voltage samples are displayed on the board on the 0.91-inch OLED screen respectively.
     3) The project is listed in the official plan
 
* 2. Project attributes:
    Lichuang Summer Training Camp and Lichuang E-sports Open Source Project
 
 
* 3. Open Source Agreement
    GPL 3.0
 
 
* 4. Hardware part
 
current sampling circuit:
voltage sampling circuit
 
 
*6, BOM
 
 
 
*7, competition LOGO verification
 
* 8. Demonstrate your project and record it as a video to upload
 
more details: https://diy.szlcsc.com/posts/d76d9cb41705430e9a54e7a5feed07a5
 

WeChat_20220830210006.mp4

WeChat_20220830210019.mp4

WeChat picture_20220830210110.jpg

BOM download

PCB_PCB_#The 7th Lichuang Electric Competition#USb ammeter_2_2022-09-25.pdf

PCB_PCB_#The 7th Lichuang Electric Competition#USb ammeter_2_2022-09-25.json

PCB_#The 7th Lichuang Electric Competition#USb ammeter_2_2022-09-25.pcbdoc

Gerber_PCB_#The 7th Lichuang Electric Competition#USb ammeter_2.zip

Schematic_#The 7th Lichuang Electric Competition#USb ammeter_2022-09-25.pdf

SCH_#The Seventh Lichuang Electric Competition#USbAmmeter_2022-09-25.json

Sheet_1_2022-09-25.schdoc

61175

【Training Camp】Be a little bitch

Introduction: hi3861 is the main control little bell

The little clock that hi3861 controls as the main controller can already move normally, but the pen was not installed before it arrived.

a21e40e8dccb7ae8669b553ed06e9e4b.mp4

BOM download

PCB_PCB_[Training Camp] Be a little bitch_2022-09-25.pdf

PCB_PCB_[Training Camp] Be a little bitch_2022-09-25.json

PCB_[Training Camp] Be a little bitch_2022-09-25.pcbdoc

Gerber_PCB_[Training Camp] Be a little bitch.zip

Schematic_[Training Camp] Be a little bitch_2022-09-25.pdf

SCH_[Training Camp] Be a little bitch_2022-09-25.json

Sheet_1_2022-09-25.schdoc

61176

gas sensor

Introduction: Gas Sensor + OLED

Making MQ-2 gas sensor + OLED display

BOM download

PCB_PCB_gas sensor_2_2022-09-25.pdf

PCB_PCB_gas sensor_2_2022-09-25.json

PCB_gas sensor_2_2022-09-25.pcbdoc

Gerber_PCB_gas sensor_2.zip

Schematic_gas sensor_2022-09-25.pdf

SCH_gas sensor_2022-09-25.json

Sheet_2_2022-09-25.schdoc

61177

electronic