Tits Simulation_Desktop Power

Introduction: Desktop power supply based on LM25116, programmable overcurrent protection, maximum input 40V, maximum current 5A, digital display of voltage and current

Schematic PCB

Tit simulation_three-phase bridge driver

Introduction: Made to facilitate verification of various topologies. It also comes with AND, OR, and XOR chips, which can perform simple input logic combinations. Digital isolator: ISO7841 Half-bridge driver: EG2131

Schematic PCB

Tit simulation_simple constant current load

Introduction: A simple and reliable cross-flow electronic load. We do not pursue gorgeous functions, but strive to be simple, reliable and easy to assemble, and use common components that are easily available as much as possible.

Schematic PCB

Single section 18650LED driver unit

Introduction: 18650 management unit integrating charging, protection and LED constant current driver

Schematic PCB

18650 charge and discharge management circuit

Introduction: This design is intended to be a mobile phone semiconductor radiator with 18650 battery cells. low cost.

Schematic PCB

#5V Common USB Voltage Ammeter

Introduction: Reproduction of the voltage and ammeter of the summer training camp based on N32G430 (through actual verification, it was found that there were two errors in the engineering file. After offline modification, the screen was successfully lit. Due to time reasons, it is only explained here)

Schematic PCB

[Internet of Things] Smart wifi switch based on Hi3861 +1658748A

Introduction: Use Hi3861 chip to develop smart switches, verified.

Schematic PCB

[Internet of Things] Hongmeng Internet of Things Smart WIFI Switch +4231717A

Introduction: Use Hongmeng Hi3861 chip combined with a servo to achieve remote control of physical switches in your home or dormitory.

Schematic PCB

Mobile power control board-KRALYN3D

Introduction: Power Control Board

Schematic PCB

SD to MicroSD Adapter

Summary: Simple SD to MicroSD adapter with holes for (optional) pin headers

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ATtiny85 Wireless Tester

Introduction: Simple USB power tester with OLED display

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ATtiny13 TinyTacho

Introduction: Simple tachometer (RPM-Meter)

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Super mini ESP8266 development board

Introduction: Probably the smallest Type-C ESP8266 expansion board currently, 23.3 mm long and 20.5 mm wide

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Orz_STM

Introduction: STM (Scanning Tunneling Microscope) is an attempt to make a home-made scanning tunneling microscope.

Schematic PCB

Simple USB voltage and ammeter (ESP32+INA226)

Introduction: USB voltage and ammeter based on ESP32+INA226, using USB A head, with CC pin, supports PD fast charging; focus: ultra-thin, simple

Schematic PCB

USB-POWER V1.2

Introduction: USB power ammeter based on PD protocol

Schematic PCB

IP5389 fast charging power bank V1.2

Introduction: IP5389 fast-charging power bank adopts a male mold casing on the market and integrates a 0.42-inch OLED display, which can display battery capacity, temperature, and charge and discharge voltage and current.

Schematic PCB

Screen display 100W fast charging power bank

Introduction: 100W fast charging power bank based on IP5389 chip solution, with OLED display, which can display battery power and temperature, charge and discharge voltage and current; capacitive touch button switch with lighting.

Schematic PCB

Electronic load meter V1.2

Introduction: Low-power electronic load meter based on ESP32+INA226; supports DC, TYPE C, and 4-wire interface.

Schematic PCB

STLINK

Introduction: STLINK+UART

Schematic PCB