musherom's repositories
Urology-Circuit-Board
California Plug Load Research Center (CalPlug) This is the second version of Urology. This verson features two circuit boards and additional features from upgraded hardware such as the ESP 32 WROVER. The essential features of this device is a force sensor, battery management system with a guage, on board FTDI, LED indicators, throw switch, tare button, current sync with LED bar, piezo sound generator, 3V3 Regulator/Boost and WiFi/BLE. The reason we decided to use the ESP32 WROVER was to allow for an antenna extension to be plugged into the processor. Our case needed to be metal to follow medical equipment guidelines and this required us to have an external antenna. This project has two circuit boards. The top board is designated for all user interface controls in order to reduce wire connections to bottom board. The bottom board is the brains of the entire circuitry. We have made code upload possible through USB. In addition, charging the LiPo battery is possible through USB input. To keep connections clean, JST connectors were used connect boards. This is a team project with CalPlug researchers and my role was lead hardware designer. My contributions include block diagrams, Eagle Schematics, and the Bottom Board Layout.
ADE7953-Wattmeter
ADE 7953 Arduino style library (Espressif ESP8266 compatible) and demo board PCB design
containers
Bitnami container images
Engineering-Portfolio
This is a channel to show previous report and document regarding to the engineering experience Lifeng Liang has
esp32_mmd
esp32でmmd
Function_Generator_STC
使用STC单片机自制波形发生器 / DIY Function Generator with STC MCU
godot
Godot Engine – Multi-platform 2D and 3D game engine
HX711
An Arduino library to interface the Avia Semiconductor HX711 24-Bit Analog-to-Digital Converter (ADC) for Weight Scales.
Mini-DSO
用STC单片机制作的简易示波器 / DIY Mini Digital Storage Oscilloscopes(DSO) with STC MCU
NESizer2
A synthesizer based on the 2A03 (NES APU)
Waking-Up
计算机基础（计算机网络/操作系统/数据库/Git...）面试问题全面总结，包含详细的follow-up question以及答案；模拟面试，知识点复习，快速备战面试...