The OTA system is composed of three main layers:
- MCU Firmware: Bootloader + Application
- OTA Agent: Handles download, verification, and flash writing
- Security Module: RSA/ECDSA verification, AES encryption
KunYi Chen KunYi
KunYi
/ Outdoor IP Camera Enclosure Design Specifiation.md
Last active
January 9, 2026 09:11
Outdoor IP Camera – Mechanical & Thermal Design Specification
This document defines the mechanical, thermal, and environmental design requirements for a fanless outdoor IP Camera, optimized for direct sunlight exposure, sealed enclosure, and long-term industrial deployment.
This specification is intended for:
- Mechanical design vendors
- Enclosure / die-casting suppliers
KunYi
/ Outdoor Industrial Enclosure Design Specification.md
Created
January 9, 2026 08:35
Outdoor Industrial Enclosure + Sun Shield Design Specification
This specification defines the mechanical, thermal, and environmental design requirements for an outdoor industrial control enclosure equipped with a passive sun shield (radiation shield). The design targets fanless operation, sealed enclosure, and long-term outdoor deployment under direct sunlight.
KunYi
/ OutdoorEnclosureElectronicsProtection.md
Created
January 9, 2026 08:10
Outdoor Enclosure Electronics Protection Technical Report
In outdoor environments, electronic control boards are susceptible to moisture, rain, and temperature variations, which can lead to corrosion. Even if the enclosure uses rubber seals at both ends, practical tests show that temperature changes can still allow water vapor to enter.
Causes:
- Temperature differences cause internal pressure fluctuations (positive/negative), drawing in external moisture.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #define 喵喵喵 main | |
| #define 喵喵 int | |
| #define 喵 ( | |
| #define 喵喵嗚 ) | |
| #define 喵喵喵喵 { | |
| #define 喵嗚喵 } | |
| #define 嗚喵喵 << | |
| #define 嗚 cout | |
| #define 嗚嗚 endl | |
| #define 嗚嗚嗚 "喵喵喵!" |
KunYi
/ coreboot_lattepand_mu.md
Last active
September 18, 2025 13:52
lattepanda mu with coreboot 25.06 and latest
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <libavformat/avformat.h> | |
| #include <libavcodec/avcodec.h> | |
| #include <libavutil/imgutils.h> | |
| #include <libavutil/time.h> | |
| #include <SDL2/SDL.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #define RTSP_URL "rtsp://172.32.0.93:554/live/0" |
KunYi
/ PICO BOARD with NUC120.md
Created
June 2, 2025 05:35
DebugProbeOnPICO pins wires mapping table
| PICO BOARD | NUC120DBG |
|---|---|
| PIN2 (GPIO1): nRST | PIN4: nRST |
| PIN4 (GPIO2): SWD_CLK | PIN3: SWDCLK |
| PIN5 (GPIO3): SWD_DAT | PIN2: SWDDAT |
| PIN36: 3V3 | PIN1: VCC_3V3 |
| PIN38: GND | PIN5: GND |
KunYi
/ DAPLink_pfm_m487km.md
Created
May 15, 2025 05:18
(venv)$ progen generate -t cmake_gcc_arm -p m48ssidae_numaker_pfm_m487km_if -o generator=ninja -b
progen.generate INFO Generating cmake_gcc_arm for m48ssidae_numaker_pfm_m487km_if
-- The C compiler identification is GNU 10.3.1
-- The CXX compiler identification is GNU 10.3.1
-- The ASM compiler identification is GNU
-- Found assembler: /usr/bin/arm-none-eabi-gcc
-- Detecting C compiler ABI infoNewerOlder