An opensource OpenWrt variant for mainland China users.
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Roaring bitmaps in C (and C++), with SIMD (AVX2, AVX-512 and NEON) optimizations: used by Apache Doris, ClickHouse, Alibaba Tair, Redpanda, YDB and StarRocks
- roaring-bitmaps
- visual-studio
- c
- clang
:airplane: Multi-functional, compatible DIY general aviation proximity awareness system
- traffic
- aviation
- flarm
- radio
C99 firmware core for a 16-series LFP pack. Independent charge and discharge FETs, cell protection, coulomb SOC, and the current and voltage limits an inverter follows. Passive balance runs for 1.0 s, then 200 ms off, so the fault wait finishes on an unloaded sample. No RTOS, no heap. The AFE driver and fieldbus stay on your board.
- battery
- bms
- c
- firmware
Whistle speech-to-text running fully on an ESP32-S3: hold a button, say a colour in one of 7 languages, the LED does it. No network.
- edge-ai
- esp32
- esp32-s3
- inmp441